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product structure silicon monolithic integrated circuit this product is not designed prot ection against radioactive rays 1/28 tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 14? 001 datashee t sound processor series for car audio sound processor with built-in 2-band equalizer BD37503FV general description sound processor which has built-in 4input selector and 2-band equalizer filter. and, loudness filter and 2nd-order anti-aliasing filter which att enuate noise occurs at output of dac are available, ei ther one by switching. features ? built-in differential input selector that can make various combination of single-ended / differential input. ? reduce switching noise by using advanced switch circuit ? built-in ground isolation amplifier inputs, ideal for external stereo input. ? decrease the number of external components by built-in 2nd-order ant i-aliasing filter ? decrease the number of external components by built-in 2-band equalizer filter and loudness filter. ? a pcb area can be reduced and pcb layouts become easy thanks to that signal flow is gathered to one direction by arrangement of input and output left side and right side separately. ? it is possible to control by 3.3v / 5v for i 2 c bus serial controller. applications ? it is the optimal for the car audio. besides, it is possible to use for the audio equipment of mini compo, micro compo, tv etc with all kinds. key specifications ? total harmonic distortion 0.001%(typ.) ? maximum input voltage 2.2vrms(typ.) ? common mode rejection ratio 50db(min.) ? maximum output voltage 2.1vrms(typ.) ? output noise voltage 5.8 vrms(typ.) ? residual output noise voltage 2.8 vrms (typ.) ? ripple rejection: -70db (typ.) ? operating temperature range -40 to +85 package w(typ.) x d(typ.) x h(max.) ssop-b20 6.50mm x 6.40mm x 1.45mm ssop-b20 typical application circuit figure 1. application circuit diagram
2/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 pin configuration figure 2. pin configuration pin description terminal no. symbol description of terminals terminal no. symbol description of terminals 1 n.c. non connection terminal 11 gnd gnd terminal 2 d1 d input terminal of 1ch 12 sda i 2 c communication data terminal 3 cn1 c negative input terminal of 1ch 13 scl i 2 c communication clock terminal 4 cp1 c positive input terminal of 1ch 14 outr2 rear output terminal of 2ch 5 b1 b input terminal of 1ch 15 outf2 front output terminal of 2ch 6 a1 a input terminal of 1ch 16 a2 a input terminal of 2ch 7 outf1 front output terminal of 1ch 17 b2 b input terminal of 2ch 8 outr1 rear output terminal of 1ch 18 cp2 c positive input terminal of 2ch 9 vcc power supply terminal 19 cn2 c negative input terminal of 2ch 10 vref bias terminal 20 d2 d input terminal of 2ch block diagram figure 3. block diagram treble bass loudness / anti-aliasing volume fader fader fader fader 1 2 3 4 5 6 7 8 9 ssop-b20 (top view) 10 11 12 13 14 15 16 17 18 19 20 d1 cn1 cp1 b1 a1 outf1 outr1 vcc vref gnd sda scl outr2 outf2 a2 b2 cp2 cn2 d2
3/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 absolute maximum ratings (ta=25 ) item symbol rating unit power supply voltage vcc 10.0 v input voltage vin vcc+0.3 to gnd-0.3 scl,sda : 7 to gnd-0.3 v power dissipation pd 937 1 mw storage temperature tastg -55 to +150 1 this value decreases 7.5mw/ for ta=25 or more. rohm standard board shall be mounted. thermal resistance ja = 133.3( /w) rohm standard board size 70701.6( ? ) material fr4 a fr4 grass epoxy board(3% or less of copper foil area) recommended operating rating item symbol min. typ. max. unit power supply voltage vcc 7.0 8.5 9.5 v temperature topr -40 - +85
4/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 electrical characteristic unless specified particularly, ta=25 , vcc=8.5v, f=1khz, vin=1vrms, rg=600 ? , rl=10k ? , a input, input gain 0db, volume 0db, tone control 0db, loudness 0db, fader 0db, output gain 0db block item symbol limit unit condition min. typ. max. general current upon no signal i q 20 27 ma no signal voltage gain g v -1.5 0 1.5 db gv=20log(vout/vin) channel balance cb -1.5 0 1.5 db cb = g v 1-g v 2 total harmonic distortion thd+n1 0.001 0.05 % vout=1vrms bw=400-30khz output noise voltage v no 5.8 18 vrms rg = 0 ? bw = ihf-a residual output noise voltage v nor 2.8 9 vrms fader = -db rg = 0 ? bw = ihf-a cross-talk between channels ctc -100 -90 db rg = 0 ? ctc=20log(vout/vin) bw = ihf-a ripple rejection rr -70 -40 db f=1khz vrr=100mvrms rr=20log(vcc in/vout) input selector input impedance(a, b, d) r in _ s 70 100 130 k ? input impedance(cp,cn) r in _ d 35 50 65 k ? maximum input voltage v im 2 2.2 vrms v im at thd+n(vout)=1% bw=400-30khz cross-talk between selectors cts -100 -90 db rg = 0 ? cts=20log(vout/vin) bw = ihf-a common mode rejection ratio cmrr 50 60 db cp1 and cn1 input cp2 and cn2 input cmrr=20log(vin/vout) bw = ihf-a, input gain minimum input gain g in min -2 0 2 db input gain 0db vin=100mvrms g in =20log(vout/vin) maximum input gain g in max 18 20 22 db input gain 20db vin=100mvrms g in =20log(vout/vin) gain set error g in err -2 0 2 db gain=+1 to +20db
5/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 block item symbol limit unit condition min. typ. max. volume maximum gain g v max -1.5 0 1.5 db volume = 0db vin=100mvrms gv=20log(vout/vin) maximum attenuation g v min -100 -85 db volume = -db gv=20log(vout/vin) bw = ihf-a attenuation set erro r g v err1 -2 0 2 db att=0db to -36db bass maximum boost gain g b bst 18 20 22 db gain=+20db f=100hz vin=100mvrms g b =20log (vout/vin) maximum cut gain g b cut -22 -20 -18 db gain=-20db f=100hz vin=2vrms g b =20log (vout/vin) gain set error g b err -2 0 2 db gain=+20 to -20db f=100hz treble maximum boost gain g t bst 18 20 22 db gain=+20db f=10khz vin=100mvrms g t =20log (vout/vin) maximum cut gain g t cut -22 -20 -18 db gain=-20db f=10khz vin=2vrms g t =20log (vout/vin) gain set error g t err -2 0 2 db gain=+20 to -20db f=10khz fader maximum gain g f bst -2 0 2 db gain=0db g f =20log(vout/vin) maximum attenuation g f min -100 -90 db fader = -db g f =20log(vout/vin) bw = ihf-a attenuation set error 1 g f err1 -2 0 2 db att=-1 to -15db attenuation set error 2 g f err2 -3 0 3 db att=-16 to -47db attenuation set error 3 g f err3 -4 0 4 db att=-48 to -63db output impedance r o fad - 50 ? vin=100mvrms maximum output voltage v om f 2 2.1 vrms thd+n=1 bw=400-30khz loudness maximum gain g ld max 13 15 17 db gain=15db g ld =20log(vout/vin) bw=ihf-a gain set error g ld err -2 0 2 db gain=0db to -15db g ld =20log(vout/vin) output gain maximum gain g out max 4 6 8 db gain +6db vin=100mvrms g out =20log(vout/vin) gain set error g out err -2 0 2 db gain=0db, +6db vp-9690a(average value detection, effective value display) filter by matsushita communication is used for measurement. phase between input / output is same.
6/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 typical performance curve(reference data) 0.001 0.01 0.1 1 10 0.001 0.01 0.1 1 10 vin [vrms] thd + n [%] -80 -70 -60 -50 -40 -30 -20 10 100 1000 10000 100000 frequency [hz] cmrr [db] -10 -8 -6 -4 -2 0 2 4 6 8 10 10 100 1000 10000 100000 frequency [hz] gain [db] 0 5 10 15 20 0246810 vcc [v] i q [ma] figure 4. iq vs vcc figure 5. gain vs frequency figure 6. thd+n vs input voltage figure 7. cmrr vs frequency operational range 10khz 1 khz 100hz 7 9.5
7/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 figure 8. psrr vs frequency figure 9. cross-talk between channels vs frequency figure 10. loudness gain vs frequency figure 11. antifilter gain vs frequency -100 -90 -80 -70 -60 -50 -40 10 100 1000 10000 100000 frequency [hz] psrr [db] -120 -110 -100 -90 -80 -70 -60 10 100 1000 10000 100000 frequency [hz] ctc [db] -20 -15 -10 -5 0 5 10 100 1000 10000 100000 frequency [hz] gain [db] -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0 2 10 100 1000 10000 100000 frequency [hz] gain [db]
8/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 -2 5 -2 0 -1 5 -1 0 -5 0 5 10 15 20 25 10 100 1000 10000 100000 frequency [hz] gain [db] -25 -20 -15 -10 -5 0 5 10 15 20 25 10 100 1000 10000 100000 frequency [hz] gain [db] figure 12. bass gain vs frequency figure 13. treble gain vs frequency
9/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 buf 4us hd;sta 2us hd;dat 1us low 3us high 1us su;dat 1us su;sto 2us scl clock frequency250khz scl sda control signal specification (1) electrical specifications a nd timing for bus lines and i/o stages figure 14. definition of timing on the i 2 c-bus table 1 characteristics of the sda and scl bus lines for i 2 c-bus devices parameter symbol fast-mode i 2 c-bus unit min. max. 1 scl clock frequency fscl 0 400 khz 2 bus free time between a stop and start condition tbuf 1.3 s 3 hold time (repeated) start condition. after this period, the first clock pulse is generated thd;sta 0.6 s 4 low period of the scl clock tlow 1.3 s 5 high period of the scl clock thigh 0.6 s 6 set-up time for a repeated start condition tsu;sta 0.6 s 7 data hold time thd;dat 0 s 8 data set-up time tsu; dat 100 ns 9 set-up time for stop condition tsu;sto 0.6 s all values referred to vih min. and vil max. levels (see table 2). about 7(thd;dat), 8(tsu;dat), please make setup which has enough margin. table 2 characteristics of the sda and scl i/o stages for i 2 c-bus devices item symbol fast-mode i 2 c-bus unit min. max. 10 low level input voltage: in case an input level is fixed vil -0.5 1 v 11 high level input voltage: in case an input level is fixed vih 2.3 - v 12 pulse width of spikes which must be s uppressed by the input filter. tsp 0 50 ns 13 low level output voltage(open drain or open collector): at 3ma sink current vol1 0 0.4 v 14 input current each i/o pin with an input voltage between 0.4v and 0.9v. ii -10 10 a sda s scl t low t r t hd;dat p t hd;sta t high t buf t f t su;dat t su;sta t su;sto t sp t hd;sta sr p figure 15. a command timing example in the i2c data transmission
10/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 (2) i 2 c bus format msb lsb msb lsb msb lsb s slave address a select address a data a p 1bit 8bit 1bit 8bit 1bit 8bit 1bit 1bit s = start conditions (recognition of start bit) slave address = recognition of slave address. 7 bits in upper order are voluntary. the least significant bit is ?l? due to writing. a = acknowledge bit (recognition of acknowledgement) select address = select every of volume, bass and treble. data = data on every volume and tone. p = stop condition (recognition of stop bit) (3) i 2 c bus interface protocol 1) basic form s slave address a select address a data a p msb lsb msb lsb msb lsb 2) automatic increment (select address increases (+1) according to the number of data.) s slave address a select address a data1 a data2 a ???? datan a p msb lsb msb lsb msb lsb msb lsb msb lsb (example) data1 shall be set as data of address specified by select address. data2 shall be set as data of address specified by select address +1. datan shall be set as data of address specified by select address +n-1. 3) configuration unavailable for transmission (i n this case, only select address1 is set. s slave address a select address1 a data a select address 2 a data a p msb lsb msb lsb msb lsb msb lsb msb lsb note if any data is transmitted as select address 2 next to data, it is recognized as data, not as select address 2. (4) slave address msb lsb a6 a5 a4 a3 a2 a1 a0 r/w 1 0 0 0 0 0 0 0 80h
11/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 (5) select address & data items select address (hex) msb data lsb d7 d6 d5 d4 d3 d2 d1 d0 initial setup 1 01 1 0 1 0 0 0 0 0 initial setup 2 03 output gain 0 0 0 loudness select 0 0 loudness fo input selector 05 0 0 0 0 0 input selector input gain 06 0 0 0 input gain volume gain 20 volume attenuation fader 1ch front 28 fader attenuation f1 fader 2ch front 29 fader attenuation f2 fader 1ch rear 2a fader attenuation r1 fader 2ch rear 2b fader attenuation r2 bass gain 51 bass boost/cut 0 0 bass gain treble gain 57 treble boost/cut 0 0 treble gain loudness gain 75 0 0 0 0 loudness gain system reset fe 1 0 0 0 0 0 0 1 advanced switch note 1. in function changing of the hatching part, it works advanced switch. 2. upon continuous data transfer, the se lect address is circulated by the aut omatic increment function, as shown below. 3. for the function of input selector , input gain and output gain etc, it is not corresponded for advanced switch. therefore, please apply mute on the side of a set when changes these setting. 01 03 05 06 20 28 29 2a 2b 51 57 75
12/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 select address 03(hex) fo msb loudness fo lsb d7 d6 d5 d4 d3 d2 d1 d0 650 hz output gain 0 0 0 loudness select 0 0 0 1.3k hz 1 mode msb loudness select lsb d7 d6 d5 d4 d3 d2 d1 d0 loudness output gain 0 0 0 0 0 0 loudness fo anti-aliasing filter 1 gain msb output gain lsb d7 d6 d5 d4 d3 d2 d1 d0 0db 0 0 0 0 loudness select 0 0 loudness fo +6db 1 select address 05(hex) mode msb input selector lsb d7 d6 d5 d4 d3 d2 d1 d0 a single 0 0 0 0 0 0 0 0 b single 0 0 1 c single 0 1 0 d single 0 1 1 c diff 1 0 0 input short 1 0 1 prohibition 0 1 1 1 1 0 1 1 1 input short the input impedance of each input terminal is lowered from 100k ? (typ) to 1 k ? (typ).(for quick charge of coupling capacitor) : initial condition the list of terminals that is active when each mode of input selector is selected mode 1ch+input terminal 1ch-input termi nal 2ch+input terminal 2ch-input terminal a single 6pin(a1) - 16pin(a2) - b single 5pin(b1) - 17pin(b2) - c single 4pin(cp1) - 18pin(cp2) - d single 2pin(d1) - 20pin(d2) - c diff 4pin(cp1) 3pin(cn1) 18pin(cp2) 19pin(cn2)
13/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 select address 06 (hex) gain msb input gain lsb d7 d6 d5 d4 d3 d2 d1 d0 0db 0 0 0 0 0 0 0 0 1db 0 0 0 0 1 2db 0 0 0 1 0 3db 0 0 0 1 1 4db 0 0 1 0 0 5db 0 0 1 0 1 6db 0 0 1 1 0 7db 0 0 1 1 1 8db 0 1 0 0 0 9db 0 1 0 0 1 10db 0 1 0 1 0 11db 0 1 0 1 1 12db 0 1 1 0 0 13db 0 1 1 0 1 14db 0 1 1 1 0 15db 0 1 1 1 1 16db 1 0 0 0 0 17db 1 0 0 0 1 18db 1 0 0 1 0 19db 1 0 0 1 1 20db 1 0 1 0 0 prohibition 1 0 1 0 1 1 1 1 1 1 select address 20 (hex) att msb volume attenuation lsb d7 d6 d5 d4 d3 d2 d1 d0 prohibition 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 1 1 1 0db 1 0 0 0 0 0 0 0 -1db 1 0 0 0 0 0 0 1 -2db 1 0 0 0 0 0 1 0 -35db 1 0 1 0 0 0 1 1 -36db 1 0 1 0 0 1 0 0 prohibition 1 0 1 0 0 1 0 1 1 1 1 1 1 1 1 0 - db 1 1 1 1 1 1 1 1 : initial condition
14/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 select address 28, 29, 2a, 2b (hex) att msb fader attenuation lsb d7 d6 d5 d4 d3 d2 d1 d0 prohibition 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 1 1 1 0db 1 0 0 0 0 0 0 0 -1db 1 0 0 0 0 0 0 1 -2db 1 0 0 0 0 0 1 0 -62db 1 0 1 1 1 1 1 0 -63db 1 0 1 1 1 1 1 1 prohibition 1 1 0 0 0 0 0 0 1 1 1 1 1 1 1 0 - db 1 1 1 1 1 1 1 1 select address 51, 57 (hex) gain msb bass/treble gain lsb d7 d6 d5 d4 d3 d2 d1 d0 0db bass/ treble boost /cut 0 0 0 0 0 0 0 1db 0 0 0 0 1 2db 0 0 0 1 0 3db 0 0 0 1 1 4db 0 0 1 0 0 5db 0 0 1 0 1 6db 0 0 1 1 0 7db 0 0 1 1 1 8db 0 1 0 0 0 9db 0 1 0 0 1 10db 0 1 0 1 0 11db 0 1 0 1 1 12db 0 1 1 0 0 13db 0 1 1 0 1 14db 0 1 1 1 0 15db 0 1 1 1 1 16db 1 0 0 0 0 17db 1 0 0 0 1 18db 1 0 0 1 0 19db 1 0 0 1 1 20db 1 0 1 0 0 prohibition 1 0 1 0 1 1 1 1 1 1 select address 51, 57 (hex) mode msb bass/treble boost/cut lsb d7 d6 d5 d4 d3 d2 d1 d0 boost 0 0 0 bass/treble gain cut 1 : initial condition
15/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 select address 75 (hex) gain msb loudness gain lsb d7 d6 d5 d4 d3 d2 d1 d0 0db 0 0 0 0 0 0 0 0 1db 0 0 0 1 2db 0 0 1 0 3db 0 0 1 1 4db 0 1 0 0 5db 0 1 0 1 6db 0 1 1 0 7db 0 1 1 1 8db 1 0 0 0 9db 1 0 0 1 10db 1 0 1 0 11db 1 0 1 1 12db 1 1 0 0 13db 1 1 0 1 14db 1 1 1 0 15db 1 1 1 1 : initial condition
16/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 volume / fader volume attenuation of the details volume attenuation is 0db to -36db/fader volume is 0db to -63db (db) d7 d6 d5 d4 d3 d2 d1 d0 (db) d7 d6 d5 d4 d3 d2 d1 d0 0 1 0 0 0 0 0 0 0 -33 1 0 1 0 0 0 0 1 -1 1 0 0 0 0 0 0 1 -34 1 0 1 0 0 0 1 0 -2 1 0 0 0 0 0 1 0 -35 1 0 1 0 0 0 1 1 -3 1 0 0 0 0 0 1 1 -36 1 0 1 0 0 1 0 0 -4 1 0 0 0 0 1 0 0 -37 10 1 0 0 1 0 1 -5 1 0 0 0 0 1 0 1 -38 10 1 0 0 1 1 0 -6 1 0 0 0 0 1 1 0 -39 1 0 1 0 0 1 1 1 -7 1 0 0 0 0 1 1 1 -40 1 0 1 0 1 0 0 0 -8 1 0 0 0 1 0 0 0 -41 10 1 0 1 0 0 1 -9 1 0 0 0 1 0 0 1 -42 1 0 1 0 1 0 1 0 -10 1 0 0 0 1 0 1 0 -43 1 0 1 0 1 0 1 1 -11 1 0 0 0 1 0 1 1 -44 1 0 1 0 1 1 0 0 -12 1 0 0 0 1 1 0 0 -45 1 0 1 0 1 1 0 1 -13 1 0 0 0 1 1 0 1 -46 1 0 1 0 1 1 1 0 -14 1 0 0 0 1 1 1 0 -47 1 0 1 0 1 1 1 1 -15 1 0 0 0 1 1 1 1 -48 1 0 1 1 0 0 0 0 -16 1 0 0 1 0 0 0 0 -49 1 0 1 1 0 0 0 1 -17 1 0 0 1 0 0 0 1 -50 1 0 1 1 0 0 1 0 -18 1 0 0 1 0 0 1 0 -51 1 0 1 1 0 0 1 1 -19 1 0 0 1 0 0 1 1 -52 1 0 1 1 0 1 0 0 -20 1 0 0 1 0 1 0 0 -53 1 0 1 1 0 1 0 1 -21 1 0 0 1 0 1 0 1 -54 1 0 1 1 0 1 1 0 -22 1 0 0 1 0 1 1 0 -55 1 0 1 1 0 1 1 1 -23 1 0 0 1 0 1 1 1 -56 1 0 1 1 1 0 0 0 -24 1 0 0 1 1 0 0 0 -57 1 0 1 1 1 0 0 1 -25 1 0 0 1 1 0 0 1 -58 1 0 1 1 1 0 1 0 -26 1 0 0 1 1 0 1 0 -59 1 0 1 1 1 0 1 1 -27 1 0 0 1 1 0 1 1 -60 1 0 1 1 1 1 0 0 -28 1 0 0 1 1 1 0 0 -61 1 0 1 1 1 1 0 1 -29 1 0 0 1 1 1 0 1 -62 1 0 1 1 1 1 1 0 -30 1 0 0 1 1 1 1 0 -63 1 0 1 1 1 1 1 1 -31 1 0 0 1 1 1 1 1 - 1 1 1 1 1 1 1 1 -32 1 0 1 0 0 0 0 0 - - - - - - - - - initial condition (6) about power on reset at on of supply voltage circuit made initialization inside ic is built-in. please send data to all address as initial data at supply voltage on. and please supply mute at set side until this initial data is sent. item symbol limit unit condition min. typ. max. rise time of vcc trise 20 usec vcc rise time from 0v to 5v vcc voltage of release power on reset vpor 5.0 v
17/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 about advanced switching circuit 1 about advanced switch 1-1. effect of advanced switch it is the rohm original technology for prevention of swit ching noise. when gain switching such as volume and tone control is done momentarily, a music signal isn't continuous, and unpleasant shock noise is made. advanced switch can reduce shock noise with the technology which signal wave shape is complemented so that a music signal may not continue drastically. advanced switch starts switching after the control data fr om a microcomputer are received. it takes one fixed time, and wave shape transits as the above figure. the data trans mitted by a microcomputer are processed inside, and the most suitable movement is done inside the ic so that switching shock noise may not be made. but, it presumes by the transmitting timing when it doesn' t become intended switching wave shape because it is the function which needs time. the example in which there are re lation with the switching time of the data transmitting timing and the reality are shown in the following. it asks for design when it is confirmed well. 1-2. about a kind of transmission method ? a data setup except for the item for advanced switch (p11/27 select address and the data format, the thing which isn't indicated by gray) there is no regulation in transmission specially. ? the data setup of the it em for advanced switch p11/27 select address and the data format,, the thing which is indicated by gray though there is no regulation in data tr ansmission, the switching order when dat a are transmitted to several blocks follows the next 2. a change of dc voltage 80 20 86 gain is made to change right after the data transmission momentarily. at this time, a change of dc voltage occurs only in the one for the difference of the amplitude before and after the change. the technology of advanced switching makes this dc voltage change slow. wave of advanced switching i 2 c bus slave select data
18/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 2 about transmission data of advanced switching item 2-1. about switching time of advanced switch advanced switching time are equivalent to the switching time and invalid time(effect-less time) inside the ic, and switching time and invalid time is equal to 11.2msec x (1 0.4(dispersion margin)) therefore, actual advanced switching time (t soft ) is defined as follows. advanced switching time t soft is, t soft = switching time and invalid time(= switching time x 2). 2-2. about the data transmitting timing in same block state and the switching movement transmitting example 1 a time chart to the start of switching fr om the data transmission is as following. at first, the example are shown as below when the interval time is sufficient in which transmission of the same blocks. (sufficient interval means time which is more than t soft maximum value, 11.2msec x 1.4(dispersion margin) x 2 = 31.4msec t ransmitting example 2 next, when a transmitting interval isn't sufficient (when it is shorter than the above interval), the example is shown. in case data are transmitted during the first switching movement, the next switching movement is started in succession after the first swit ching movement is finished. switching time advanced switching time t soft = switching time2 the total time of 1 time advanced switching needs 2 times of the switching time invalid time 80 28 80 fader f1 switching time i 2 c bus advanced switching time (f1 0db) slave select data aks outf1 80 28 ff (f1 ?infdb) interval R t soft maximum(=31.4msec) invalid time fader f1 s witch in g tim e inva lid tim e 80 28 80 i 2 c bus advanced switching time (f1 0db) slave select data aks outf1 80 28 ff (f1 ?infdb) inte r val t soft maximum (=31.4msec ) fader f1 switching time inva lid time fader f1 switching time inva lid time
19/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 volume h20 bs1 bs3 fader f1 h28 fader f2 h29 loudness h75 select address bass h51 fader r1 h2a fader r2 h2b treble h57 bs2 transmitting example 3 next, the example of the switching movement when a transmitting interval was shortened more is shown. inside the ic, it has the buffer which memorizes dat a, and a buffer always does transmitting data. but, data of +4db which transmitted to the second become in valid with this example because the buffer holds only the latest data. transmitting example 4 at first, transmitting data are stored in the maintenance data, and next it is written in the setup data in which gain is set up to. but, in case there is no difference between the transmitting data and the setup data as a refresh data, advanced switch movement isn't started. 2-3. about the data transmitting timing and the switching movement in several block state when data are transmitted to several blocks, treatment in the bs (block state) unit is carried out inside the ic. the order of advanced switch movement star t is decided in advance dependent on bs. the order of advanced switch start it is possible that blocks in the same bs start switching at the same timing. data of -8db received from buffer : 0db -8db 80 28 80 80 28 04 80 28 88 +4db i 2 c bus fader f1 bufferd data (faderf1 0db) (faderf1 +4b) (faderf1 -8b) this is inv alid as a result. only an end is effective in the data transmitted during f1 switching. advanced switching time -8db data of 0db received : - ? 0db 0db replacement fader f1 switching time invalid time fader f1 switching time invalid time 80 28 80 i 2 c bus advanced switching time (faderf1 0db) refresh data 80 28 80 (faderf1 0db) because receiving as refresh-data, advanced switching doesn't start. fader f1 switching time invalid time figure 16. the example of the timing of command of in i 2 cdata transmitting
20/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 transmitting example 5 about the transmission to several blocks also, as explained in the previous section, though th ere is no restriction of the i2c bus data transmitting timing, the start timing of switch ing follows the figure of previous page, figure16. therefore, it isn't based on the dat a transmitting order, and an actual switch ing order becomes as the figure16 (transmitting example 6). each block data is being transmitted separately in the transmitting example 5, but it becomes the same result even if data are transmitted by automatic increment. transmitting example 6 when an actual switching order is differ ent from the transmitting order or data ex cept for the same bs are transmitted at the timing when advanced switch movement isn't finished, swit ching of the next bs is done after the present switching completion . transmitting example 7 in this example, data of bs2 and bs3 are transmitted during advances switching of bs2(same bs2 group) . 0db received from buffer ?inf 0db 80 28 80 80 51 06 i 2 c bus fader r1 buffered data bs2 (faderf1 0db) bs2 (bass +6db) the different data (bass) of the same bs2 group during advanced switching of (f1) are transmitted. advanced switching time 0db received - ? 0db 6db received from buffer 0db +6db 80 2a 80 bs3 (faderr1 0db) 6db bass buffered data fader f1 switching time inva lid time fader r1 switching time inva lid time bass switching time inva lid time outf1 80 20 80 80 28 06 80 2a 06 volume switching time i 2 c bus advanced switch time start after advanced switch of volume start after advanced switch of fader f1 (volume 0db) ( faderf 1 +6db) ( faderr 1 +6db) slave select data aks invalid time fader f1 switching time invalid time fader r1 switching time invalid time outr1 volume switching time advanced switching time 80 20 80 80 2a 80 80 28 80 i 2 c bus (volume 0db) (faderr1 0db) (faderf1 0db) slave select data invalid time fader f1 switching time invalid time fader r1 switching time invalid time
21/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 2-4. about gain switching of tone(bass/ treble) when gain is changed from boost to cut (or, from cut to boost), advanced switching is two-step transition movement that it go through 0db to prevent t he occurrence of the switching noise. and when boost/cut doesn't change between before switching and after switching, advanced switching is the same as 2-2, 2-3. about advanced switching time, it is same time length as other switching time length. transmitting example 8 in case changing bass gain +15db from -15db 3 advanced switch transmitting timing list 3-1. volume/fader(f1,f2,r1,r2 )/tone(bass,treble,loudness) advanced switch stand by advanced switch active transmission timing optional optional start timing starts right after the data transmission starts right after present switching was finished. advanced switching time t soft 1 t soft 3-2. tone boost ? cut advanced switch stand by advanced switch active transmission timing optional optional start timing starts right after the data transmission starts right after present switching was finished. advanced switching time t soft 2 t soft 1 advanced switching time t soft equalls to 2times of swithcing time. 2 about t soft of tone boost ? cut, the time length until gain switching fi nishes is equal to 2times of swithcing time, because it go through 0db when switching from initial gain to requested gain. in this case, advanced switching time is same as 1 above. 80 51 0f i 2 c bus advanced switching time -15 db 0db 0db +15db (ba ss+15db) outf1 t soft = switching time2 bass switching time bass switching time
22/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 application circuit diagram figure 17. application circuit diagram notes on wiring please connect the decoupling capacitor of a power supply in the shortest dist ance as much as possible to gnd. lines of gnd shall be one-point connected. wiring pattern of digital shall be away from that of analog unit and cross-talk shall not be acceptable. lines of scl and sda of i 2 c bus shall not be parallel if possible. the lines shall be shielded, if they are adjacent to each other. lines of analog input shall not be parallel if possible. the lines shall be shielded, if they are adjacent to each other. unit resistance: ? capacitance: f ?>t>?> >>>e >?>e> >?>?>? >t>>t@? >>>y@? >???>>y >???>t>y h>???!? >??????>????!? >>?>?>?? >??>????????>? ?>??? ???>????> ??????>????!? >? ?>>>>e>>????? ? ???>????!? >h >y>@? >t>>t@? >t>>t@? >t>>t@? >t>>t@? >y>@? >y>@? >?>>y >?>y >?>>y >e>y >t>>t@? >?>>t >t>>t@? >?>>t >t>>t@? >?>t >???>t>t >???>>t >y>@? ?>?>? >>>e>>????? ? ??? >y>@? >e>t >t>>t@? >>t >y>@? >>y >>>?> >>>e>>????? ? ??? >t>>t@? et>??!? ??!? >>? ?? >? ??h>?>?>?>a?>? >>y>?>>t>?>t>y>?>t>t> et>? ???>????!?? >? ??>?>?>?hz>>a>?h@>?f?>>?>>>?>y?>?>?? ??> et>?? ??>???????>>??>>>y>>>?>y>?>? >? ??h>>t>?>?hz>>t>?>?>?>y?>?>?? ?? et>???!?????>?>>>a>>>?>y>>??>??& >? ??>?>>y>?>?hz>?>?>?>y?>?>?? ?? >y>? ?>t>?>?>?>? >y >t >? > > >a >? >? >y>y >y>t >y>? >y> >y> >y>? >y>>? >y>>? >t>? ?>?>? et?>?>??>>? >??h>?>?hz>>?>a?>?>?>y?>?>?? ??>?>>>?>>>?>?>> et>????!? >>? ?? >? ??h>>t>?>?hz>?>?>?>y?>?>?? ?? >?>>?>? >y>>? >????!? >>? ?? >???!????? >?>>?? ?>? ??? ???? >??"? ????> ??#?? ?? >? >t >?>>??>?> >?>?>>?>? ?>?>??>>? >????!? >?????? ??> >?>?>??????>???>? ??>>y>?? ????>>?>?>?>? >????!? >?????? ??> >?>?>??????>???>? ??>>y>?? ????>>?>?>?>? >>>e>?>t >>>e>?>t >????!? >>? ?? >>>e>?>t >>>e>?>t >y>a >t> >y>>? >y>>? >y>>? >y> ?>t>?> >? >y>? >t>? >t>? >t>? >t>? >t>? >t>? >t>?
23/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 thermal derating curve about the thermal design by the ic characteristics of an ic have a great deal to do with the temperature at which it is used, and exceeding absolute maximum ratings may degrade and destroy elements. careful consideration mu st be given to the heat of the ic from the two standpoints of immediate damage and long-term reliability of operation. figure 18. temperature derating curve power dissipation values vary according to the board on which the ic is mounted. note) values are actual meas urements and are not guaranteed. ssop-b20 1.5 1.0 0.5 0.0 0 25 50 75 100 125 150 ambient temperature ta power dissipation pd (w) 937mw ja = 133.3 /w 85 reference data measurement condition: rohm standard board board size 70701.6( ? ) material a fr4 grass epoxy board (3% or less of copper foil area)
24/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 terminal equivalent circuit and description terminal name terminal voltage equivalent circuit terminal description a1 a2 b1 b2 d1 d2 4.2 a terminal for signal input. the input impedance is 100k (typ). cp1 cp2 4.2 a terminal for positive input of ground isolation amplifier. cn1 cn2 4.2 a terminal for negative input of ground isolation amplifier. scl - a terminal for clock input of i 2 c bus communication. sda - a terminal for data input of i 2 c bus communication. gnd vcc 1.65v
25/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 terminal name terminal voltage equivalent circuit terminal description outf1 outr1 outr2 outf2 4.2 a terminal for fader output. n.c. - non connect terminal vcc 8.5 power supply terminal. gnd 0 ground terminal. vref 4.2 bias terminal. voltage for reference bias of analog signal system. the simple pre-charge circuit and simple discharge circuit for an external capacitor are built in. the figure in the pin explanation and input/output equivalent ci rcuit is reference value, it doesn?t guarantee the value.
26/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 operational notes 1. absolute-maximum-rating voltage when voltage is impressed to vcc exceeding absolute-maximum-ra ting voltage, circuit current increase rapidly, and it may result in property degradation and destruction of a device. when impressed by a vcc terminal (9pin) especially by ser ge examination etc., even if it includes an of operation voltage + serge pulse component, be careful not to impress voltage (about 14v) greatly more than absolute-maximum-rating voltage. 2. about a signal input part 1) about constant set up of input coupling capacitor in the signal input terminal, the c onstant setting of input coupling capaci tor c(f) be sufficient input impedance r in ( ) inside ic and please decide. the first hpf characteristic of rc is composed. figure 19. input short circuit 2) about the input short short mode is the command which makes switch s sh =on an input selector part and input impedance rin of all terminals, and makes resistance small. switch s sh is off when not choosing a short command. a constant time becomes small at the time of this command twisting to the resistance inside the capacitor connected outside and lsi. the charge time of a capacitor becomes short. since short mode turns on the switch of s sh and makes it low impedance, plea se use it at the time of a non-signal. 3. about output load characteristics the usages of load for output are below (refe rence). please use the load more than 10k (typ). the target output terminal terminal no. terminal name terminal no. terminal name 7 outf1 8 outr1 15 outf2 14 outr2 fig.16 output load characteri stic vcc=8.5v(reference data) vcc=8.5v thd+n=1% bw=400 to 30khz c f rin ? input s sh >t >?>>? >t >?> >?>t@??>?>t>y >?>?>t@??>?>t >>??>? ? ? 0 a(f) g db f hz rload[ ]
27/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 status of this document the japanese version of this document is formal specification. a customer may use this translation version only for a reference to help reading the formal version. if there are any differences in translation version of this document formal version takes priority ordering information b d 3 7 5 0 3 f v e 2 part number package fv: ssop-b20 packaging and forming specification e2: embossed tape and reel (ssop-b20) physical dimension tape and reel information marking diagram(s)(top view) ssop-b20(top view) bd37503 part number marking lot number 1pin mark (unit : mm) ssop-b20 0.1 11 10 20 1 0.1 0.1 6.4 0.3 4.4 0.2 6.5 0.2 0.15 0.1 0.22 0.1 0.65 1.15 0.1 0.3min. ? order quantity needs to be multiple of the minimum quantity. embossed carrier tape tape quantity direction of feed the direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand 2500pcs e2 () direction of feed reel 1pin
28/28 datasheet datasheet BD37503FV tsz02201-0v2v0e100000-1-2 ? 2012 rohm co., ltd. all rights reserved. 2013.07.12 rev.002 www.rohm.co.jp tsz22111 ? 15? 001 revision history date revision changes 03.aug.2012 001 new release 03.jul.2013 002 2/28 figure2 correction
datasheet d a t a s h e e t notice - ge rev.002 ? 2014 rohm co., ltd. all rights reserved. notice precaution on using rohm products 1. our products are designed and manufac tured for application in ordinary elec tronic equipments (such as av equipment, oa equipment, telecommunication equipment, home electroni c appliances, amusement equipment, etc.). if you intend to use our products in devices requiring ex tremely high reliability (such as medical equipment (note 1) , transport equipment, traffic equipment, aircraft/spacecra ft, nuclear power controllers, fuel c ontrollers, car equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (?specific applications?), please consult with the rohm sale s representative in advance. unless otherwise agreed in writing by rohm in advance, ro hm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ro hm?s products for specific applications. (note1) medical equipment classification of the specific applications japan usa eu china class class class b class class class 2. rohm designs and manufactures its products subject to strict quality control system. however, semiconductor products can fail or malfunction at a certain rate. please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe desi gn against the physical injury, damage to any property, which a failure or malfunction of our products may cause. the following are examples of safety measures: [a] installation of protection circuits or other protective devices to improve system safety [b] installation of redundant circuits to reduce the impact of single or multiple circuit failure 3. our products are designed and manufactured for use under standard conditions and not under any special or extraordinary environments or conditio ns, as exemplified below. accordin gly, rohm shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of an y rohm?s products under any special or extraordinary environments or conditions. if you intend to use our products under any special or extraordinary environments or conditions (as exemplified bel ow), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] use of our products in any types of liquid, incl uding water, oils, chemicals, and organic solvents [b] use of our products outdoors or in places where the products are exposed to direct sunlight or dust [c] use of our products in places where the products ar e exposed to sea wind or corrosive gases, including cl 2 , h 2 s, nh 3 , so 2 , and no 2 [d] use of our products in places where the products are exposed to static electricity or electromagnetic waves [e] use of our products in proximity to heat-producing components, plastic cords, or other flammable items [f] sealing or coating our products with resin or other coating materials [g] use of our products without cleaning residue of flux (ev en if you use no-clean type fluxes, cleaning residue of flux is recommended); or washing our products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] use of the products in places subject to dew condensation 4. the products are not subjec t to radiation-proof design. 5. please verify and confirm characteristics of the final or mounted products in using the products. 6. in particular, if a transient load (a large amount of load applied in a short per iod of time, such as pulse. is applied, confirmation of performance characteristics after on-boar d mounting is strongly recomm ended. avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading c ondition may negatively affect product performance and reliability. 7. de-rate power dissipation (pd) depending on ambient temper ature (ta). when used in seal ed area, confirm the actual ambient temperature. 8. confirm that operation temperat ure is within the specified range descr ibed in the product specification. 9. rohm shall not be in any way responsible or liable for fa ilure induced under deviant condi tion from what is defined in this document. precaution for mounting / circuit board design 1. when a highly active halogenous (chlori ne, bromine, etc.) flux is used, the resi due of flux may negatively affect product performance and reliability. 2. in principle, the reflow soldering method must be used; if flow soldering met hod is preferred, please consult with the rohm representative in advance. for details, please refer to rohm mounting specification
datasheet d a t a s h e e t notice - ge rev.002 ? 2014 rohm co., ltd. all rights reserved. precautions regarding application examples and external circuits 1. if change is made to the constant of an external circuit, pl ease allow a sufficient margin c onsidering variations of the characteristics of the products and external components, including transient characteri stics, as well as static characteristics. 2. you agree that application notes, re ference designs, and associated data and in formation contained in this document are presented only as guidance for products use. theref ore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. rohm shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. precaution for electrostatic this product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. please take proper caution in your manufacturing process and storage so that voltage exceeding t he products maximum rating will not be applied to products. please take special care under dry condit ion (e.g. grounding of human body / equipment / solder iron, isolation from charged objects, se tting of ionizer, friction prevention and temperature / humidity control). precaution for storage / transportation 1. product performance and soldered connections may deteriora te if the products are stor ed in the places where: [a] the products are exposed to sea winds or corros ive gases, including cl2, h2s, nh3, so2, and no2 [b] the temperature or humidity exceeds those recommended by rohm [c] the products are exposed to di rect sunshine or condensation [d] the products are exposed to high electrostatic 2. even under rohm recommended storage c ondition, solderability of products out of recommended storage time period may be degraded. it is strongly recommended to confirm sol derability before using products of which storage time is exceeding the recommended storage time period. 3. store / transport cartons in the co rrect direction, which is indicated on a carton with a symbol. otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4. use products within the specified time after opening a hum idity barrier bag. baking is required before using products of which storage time is exceeding the recommended storage time period. precaution for product label qr code printed on rohm products label is for rohm?s internal use only. precaution for disposition when disposing products please dispose them proper ly using an authorized industry waste company. precaution for foreign exchange and foreign trade act since our products might fall under cont rolled goods prescribed by the applicable foreign exchange and foreign trade act, please consult with rohm representative in case of export. precaution regarding intellectual property rights 1. all information and data including but not limited to application example contain ed in this document is for reference only. rohm does not warrant that foregoi ng information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. rohm shall not be in any way responsible or liable for infringement of any intellectual property rights or ot her damages arising from use of such information or data.: 2. no license, expressly or implied, is granted hereby under any intellectual property rights or other rights of rohm or any third parties with respect to the information contained in this document. other precaution 1. this document may not be reprinted or reproduced, in whol e or in part, without prior written consent of rohm. 2. the products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of rohm. 3. in no event shall you use in any wa y whatsoever the products and the related technical information contained in the products or this document for any military purposes, incl uding but not limited to, the development of mass-destruction weapons. 4. the proper names of companies or products described in this document are trademarks or registered trademarks of rohm, its affiliated companies or third parties.
datasheet datasheet notice ? we rev.001 ? 2014 rohm co., ltd. all rights reserved. general precaution 1. before you use our pro ducts, you are requested to care fully read this document and fully understand its contents. rohm shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny rohms products against warning, caution or note contained in this document. 2. all information contained in this docume nt is current as of the issuing date and subj ec t to change without any prior notice. before purchasing or using rohms products, please confirm the la test information with a rohm sale s representative. 3. the information contained in this doc ument is provi ded on an as is basis and rohm does not warrant that all information contained in this document is accurate an d/or error-free. rohm shall not be in an y way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or concerning such information.
datasheet part number BD37503FV package ssop-b20 unit quantity 2500 minimum package quantity 2500 packing type taping constitution materials list inquiry rohs yes BD37503FV - web page distribution inventory

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