View M65845AFP_2021026.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit the M65845AFP is a cmos ic built-in digital echo function with microphone peripheral circuits for "karaoke" equipment packed in a single chip. it is suitable for "karaoke" equipments such as video cd player,mini stereo, cd-radio cassette,tv or vcr. being pin compatible with the m65845fp,the M65845AFP is suitable for upgrading the series. supply voltage rangevcc=4.5~5.5v rated supply voltage vcc=5v recommended operating condition ?igh performance digital echo circuit thanks to 16kbit memory ?wo microphone-mixing lines,vocal cut circuit,digital echo, and line-mixing amplifier are contained,enabling single- chip package of microphone peripheral circuit of "karaoke" equipment. ?lc-equipped microphone amplifiers permit excessively high-input. alc operating voltage can be set as desired. ?ocal cut circuit of complete stereo construction ?ompatibility with the m65845fp ?uilt-in current-control oscillation circuit ?uilt-in automatic reset circuit activated with power on ?ingle power supply (5v) description pin configuration features 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 23 24 25 26 27 28 29 30 31 32 33 34 35 36 22 mic1 input alc1 control mic1 nf input mic1 output mic1 volume input mic2 input alc2 control mic2 nf input mic2 output mic2 volume input mic output lowpass filter1 output lowpass filter1 input a/d integral input a/d integral output a/d control reference gnd vocal cut filter alc supply voltage control audio sw2 audio sw1 clock cont mic sw micecho output lch line output rch line output lch line input rch line input echo volume input lowpass filter2 output lowpass filter2 input d/a integral output d/a integral input d/a control power supply 36p2r m 6 5 8 4 5 a f p 1 system configuration lch input rch input mic2 lch output rch output vocal cut mix alc mix mix echo vol digital echo source selector l r alc mix mic1 mic vol mic vol mic vol mic vol audio sw mic sw
electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit ic internal block diagram 29 d/a alc lpf1 lpf2 micecho mic sw rout lout clock cont ref gnd vcc vcfil lin rin vall a/d logic 16kram audio source control alc audsw1 audsw2 mic1in mic1nfin mic1out alc1 mic2in mic1 mic2nfin mic2out alc2 mic2 volin volin mic out lpf1 in lpf1 out adcont adintin adintout dacon t daintin daintout lpf2in lpf2out echovolin out clock generator 1/2vcc ref ref 28 31 30 25 24 23 22 21 20 15 14 16 13 12 11 10 7 9 8 6 5 2 4 3 1 35 26 27 33 34 36 32 17 19 18 2
electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit pin description no symbol pin name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 function ref gnd v cc gnd power supply 1/2vcc, connect filter c lpf1 out lpf1 in lowpass filter1 output lowpass filter1 input 19 20 mic1in alc1 mic1out mic1volin mic1nfin mic2in alc2 mic2nfin mic2out mic2volin micout adintin adintout adcont dacont mic1 input connect mic1 alc1 control connect c which determine recovery time mic1 nf input mic1 output set up mic1 amp gain for feedback circuit mic2 input alc2 control connect c which determine alc attack ,recovery time mic1 volume input mic2 nf input mic2 output forms mic 2 amp gain with feedback mic2 volume input mic output mixing output with mic 1 and mic 2 forms the front lowpass filter with external cr for digital echo a/d integral input forms integrator with external c and r a/d control adm a/d adaptive control d/a control adm a/d adaptive control a/d integral output reference connect mic 2 connect microphone volume which turn down input signal connect microphone volume which turn down input signal 3
electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit 21 22 clock cont lpf2 in lpf2 out lowpass filter2 output no symbol pin name function 23 24 25 26 27 28 29 30 31 32 33 34 35 36 daintin daintout echovolin rlinein llinein rlineout llineout micechoout micsw audsw1 audsw2 vcfil valc d/a integral input forms integrator with external c forms post lowpass filter with external cr for digital echo echo volume input connect microphone volume which turn down input signal rch line input lch line input rch line output lch line output mic echo output mixing output with microphone and echo mic sw l; microphone off h; microphone on controls built-in clock generation circuit with external r audio sw1 audio sw2 vocal cut filter through frequency under vocal level alc supply voltage control mixing output with line and microphone clock control changing source sound signal forms alc operation voltage with control voltage d/a integral output lowpass filter'2 input 4
electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit absolute maximum ratings recommended operating condition vcc supply voltage v icc pd topr tstg power dissipation operating temperature storage temperature circuit current ma mw ? ? 6.0 85 860 -20~+75 -40~+125 (ta=25?,unless otherwise noted) symbol parameter rations unit conditions vi input voltage -0.3~vcc+0.3 v vcc supply voltage 5 v 4.5 5.5 limits min typ max symbol parameter unit conditions v v 1 4 v il v ih l input voltage h input voltage 33,34pin 0 vcc 5
electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit electrical characteristics (vcc=5v,f=1khz,vi=100mvrms,fck=2mhz,ta=25? ,unless otherwise noted) icc v omax thd2 no circuit current maximum output voltage distortion2 noise voltage no signal thd=10% 34 2 3.0 -68 ma dbv % dbv parameter symbol conditions limits min typ max unit -1 6.0 -57 t/l microphone amplifier g vo thd1 v oalc t alcat t alcre zi voltage gain distortion1 alc voltage alc attack time alc recovery time input impedance echo line g v thd v omax n o voltage gain distortion maximum output voltage noise voltage voltage gain distortion noise voltage input impedance g v thd v omax no z i 47 0.5 1.5 -3 0 +3 db % db vo=-17dbv vo=-17dbv,without alc vi=-27dbv,alc operate at -10 ~ +3dbv at c=4.7? at c=4.7? gv=47db,jis-a,vi=0vrms thd=10% jis-a thd=10% jis-a,micsw=off 25 40 55 ms 1.0 1.5 2.0 s 5 10 20 k w db 2.0 4.0 % -3 1.0 dbv -82 -67 dbv -3 0 +3 db 0.02 0.1 % 1 4 dbv -97 -88 dbv 10 20 40 k w maximum output voltage -3.0 3.0 0 td delay time ms 197 rc=51k w vocal cut no gv v o max g rej noise voltage voltage gain maximum output voltage vocal rejection ratio jis-a,vocal cut on input one side channel thd=10% -95 -72 -3 0 +3 1 4 14 18 dbv db dbv db 6 25 70 44 50 167 226
electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit function description 7 the gain(gv) and low cut-off frequency(fcl) of microphone amplifier are expressed as follows. 3 4 334k w 1.5k w 2 10k w (typ) 5k w mic r1 c1 1? ref gv=20log r1+1.5k+334k r1+1.5k fcl= 1 2 p ?r1+1.5k)?1 gv(max)=47db,fcl=50hz r1=0 w ,c1=2.2? assuming gv=37db, fcl=15hz,for instance, the constants take the following values. r1=3.3k w ,c1=2.2? (1) microphone amplifier 3 4 r3 2 10k w (typ) r2 mic r1 c1 1? ref c4 << attention point when m65845fp is replaced with M65845AFP >> r3 and c4 are required for the m65845fp, not for the M65845AFP. as mentioned above, the gain of microphone amplifier can set it up with r1. recommended circuit in use m65845fp r1 for the gain of microphone amplifier setting in use M65845AFP r3 and c4 are not required for the M65845AFP.
electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit (2) alc level block diagram -60 -50 -40 -30 -20 -10 -30 -20 -10 0 10 alc supply voltage control limits it is set 47db for microphone amplifier gain. v o(dbv) v i(dbv) +3 (3) alc operation voltage control alc operation voltage can be formed within the limits of -10 to +3 dbv controlled by dc control voltage which connect 35 pin. (setting up forms) 35 pin control voltage v alc 0v 2.5v( vcc) 2 1 internal direct bias half peak voltage v po when alc operation voltage is -5dbv (at vcc=5v) -5dbv=0.56v rms =1.59v p-p =0.80v p-o v alc =2.5-0.8=1.7v v alc = v cc -v po 2 1 are concerned. 8
electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit input impedance to 35 pin is so high (1m w ) that alc base voltage can be determined by division resistance. 35 r16 r17(51k) vcc c33(0.01?) at vcc=5v alc operation voltage (dbv) 35 pin control voltage valc (v) resistance r16 ( w ) +3 0 -2 -4 -6 -8 -10 0.50 1.09 1.38 1.61 1.79 1.94 2.05 5.6k 15k 20k 24k 27k 33k 36k (4) mic sw input low level to 31 pin (mic sw) ,then microphone and echo signal can be cut. 31 pin (mic sw) mic sw h or open l on off echo signal output on mute 9
electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit (5) audio source select changing the switch ,sound source changes four patterns matching with karaoke soft. 33 audsw1;d1 34 audsw2;d2 movements l l l h h l h h stereo lch monaural rch monaural vocal cut 1 stereo under the conditions usual 2channels are played back to each outputs. 2 lch monaural under the conditions lch source is played back to 2ch outputs and suitable for karaoke reproduction of multiple karaoke soft and main sound reproduction of laser disks. 3 rch monaural under the conditions rch source is played back to 2ch outputs and suitable for reference vocal reproduction of multiple karaoke soft and sub sound reproduction of laser disks. 10
electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit 36 rvc=20k typ c34 fc= 2 p rvcc34 1 at fc=50hz, c34=0.15? is determined. caution; inside resistance is changeable one by one which rate is ?0%. it is a method turned down lch and rch input having the same phase and sound . lowpass cut off frequency fc is determined by a capacitance which connect to 36 pin (vocal cut filter). it is also having a function which through frequency under vocal level for supplying a lack of low level sound. 4 vocal cut 11
electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit (6) digital echo this ic incorporates a current control type clock oscillator circuit in it, thus providing circuit configuration just by connecting an rc for current control pin 32 (clock cont). fully internal clock supply prevents occurrence of undesired radiation without affecting any external circuit. the oscillator frequency fck is following. fck = 2 mhz(rc=51k w ) rc clock oscillator circuit clock frequency:fck 32 dc current note: the delay time(td) for echo is determined by the clock frequency(fck). delay time=1/fckx24xn (n=the number of memory bits = 16384 fck = 2 mhz(rc=51k w ) : delay time=197msec fck = 2.6mhz(rc=39k w ) : delay time=150msec fck = 3.9mhz(rc=24k w ) : delay time=100msec reset time mute time (400msec) the ic carries out auto mute function at the time of powering up and switching on mic sw in order to suppress shock noise that the digital delay may produce. 1 clock oscillator circuit 2?@auto mute function 12 ?t power up mic sw off mute time (400msec) ?t switching on mic sw switching on mic sw
electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit signal through frequency fsig is also determined by lpf of digital echo cut off frequency. 2 degree lpf of digital echo is formed by external resistance and capacitor . (refer to next figure) so, cut off frequency is determined by next formula. fsig= 1 2 p r8 ?r9 ?c13 ?c14 c14 c13 lpf1 lpf2 ref 24k w 24k w 24k w r7 r9 r8 13 c14 c13 ref 24k w 24k w 24k w r7 r9 r8 24 3 input and output lpf 13 23 12
electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit 14 compatibility with m65845fp as mentioned above, the M65845AFP can be replaced with the m65845fp without changing the board. *2: the M65845AFP is different from the m65845fp a part of the components marked with a circle. *1: the components marked with a circle are required for the m65845fp, not for the M65845AFP. note units resistance : w capacitance:f < application example in use m65845fp> 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 23 24 25 26 27 28 29 30 31 32 33 34 35 36 22 mic1 mic2 vcc lout rout lin rin vcc vcc mic sw feed back micin alc1 mic1out mic1volin mic1nfin mic2in alc2 mic2nfin mic2out mic2volin micout lpf1in lpf1out adintin adintout adcont ref gnd vcfil vcc dacont daintin lpf2out lpf2in echo rlinein llinein daintout rlineout llineout micecho micsw clock audsw1 audsw2 valc 5k 0.22 4.7 0.33 2.2k 150k 200p 0.1 5k 0.22 4.7 0.33 2.2k 200p 150k 0.1 0.027 15k 10k 2700p 15k 0.068? 30 0.22? 47 0.15 0.01 51k 24k 2.2 2.2 1 1 0.1 0.047? 3k 15k 0.068? 0.027 10k 15k 2700p 0.22 0.1 100 d2 d1 39k 0.15 30k 0.1 30k w 0.1 30k w 0.1? 30k w 100p *2 *1 *1 *1 *1 *1 *1 *1 *1 *2 *2 out volin m 6 5 8 4 5 a f p *2 *2 *2 *2 *2 *2 *2 *2 *2 *2 *2
electric mitsubishi M65845AFP preliminary notice ; this is not a final specification. some parametric limits are subject to change. mitsubishi sound processor ics ( / 15 ) digital echo with microphone mixing circuit 15 microphone amplifier : gv=47db,fcl=50hz alc operating voltage -4dbv echo : delay time 197ms (fs=83.3khz) cut-off frecuency 3.1khz units resistance : w capacitance:f application example 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 23 24 25 26 27 28 29 30 31 32 33 34 35 36 22 mic1 mic2 vcc lout rout lin rin vcc vcc mic sw feed back micin alc1 mic1out mic1volin mic1nfin mic2in alc2 mic2nfin mic2out mic2volin micout lpf1in lpf1out adintin adintout adcont ref gnd vcfil vcc dacont daintin lpf2out lpf2in echo rlinein llinein daintout rlineout llineout micecho micsw clock audsw1 audsw2 valc 5k 1 4.7 2.2 1 5k 1 4.7 2.2 1 0.047 24k 24k 1000p 24k 0.068 0.1 47 0.15 0.01 51k 24k 2.2 2.2? 1 1 1 24k 0.068 0.047 24k 24k 1000p 0.1 0.1 100 d2 d1 51k 0.15 50k 1 30k w 1 30k w 1 30k w out volin m 6 5 8 4 5 a f p cont

▲Up To Search▲

Price & Availability of M65845AFP

	To Download M65845AFP Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .