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rf amp for 48x cd-rom
kb9251 cd-rom 48x rf amp 2 table of contents 1. introduction 2. main features 3. block diagram 3.1 internal block diagram 3.2 external application 4. pin description 5. serial interface 6. block description 6.1 tracking error amp 6.2 focus error amp 6.3 agc & eq 6.4 envelope detector & rfrp & rfct 6.5 defect detector 6.6 alpc 6.7 sbad signal generation 6.8 reference block 6.9 vdc offset block 6.10 signal generation block for center position servo 7. electrical characteristics 7.1 bias block 7.2 power voltage 7.3 tracking error amp 7.4 focus error amp 7.5 agc & eq 7.6 rf envelope detector 7.7 rfrp block 7.8 rfct block 7.9 defect detector 7.10 alpc 7.11 sbad signal generation
cd-rom 48x rf amp kb9251 3 1. introduction cd-rom 48x rf amp chip is rf pre signal processor and processes signals from optical pick-up. this chip processes main signal through summing amp, agc block, eq block, and generates servo error signals for servo control. it can playback cd-rom and cd-rw disc. 2. main features (features, characteristics) ? cd-rom 48x ? 1, 4, 8: clv mode ? maximum speed of 48x: cav mode ? support cd-r/rw disc ? rf amp & equalizer ? focus error amp ? tracking error amp (3-beam) ? mirror (rfct, rfrp) signal detection ? defect signal detection ? built-in agc function ? alpc (automatic laser power control) block ? built-in rf envelop detector ? sbad signal generation ? signal generation for center position servo ? built-in serial interface port ? power down mode
kb9251 cd-rom 48x rf amp 4 3. block diagram 3.1 internal block diagram 33 32 31 30 29 28 27 26 25 24 23 1 2 3 4 5 6 7 8 9 10 11 44 43 42 41 40 39 38 37 36 35 34 12 13 14 15 16 17 18 19 20 21 22 ldo pd sum a b c d vcc vr e f gnd dvcc dvc sbad fe te rfclk rfdata rfen vss vdd dfct cc1 cc2 cdfct rfct cb2 cp2 rfrp rfrpi cp_env rfeqo agcin cagc pllf lpfadj rfo cm8 cm4 + - vcc agc lpf + - + - + - peak bottom + - + - + - peak offset dvcc + - + - peak dvcc serial i/f + - + - + - + - + - + - + - + - clpf + - cservo cserc - + serout + - dvc peak bottom vbg
cd-rom 48x rf amp kb9251 5 3.2 external application 1 2 3 4 5 6 7 8 9 10 11 33 32 31 30 29 28 27 26 25 24 23 44 43 42 41 40 39 38 37 36 35 34 12 13 14 15 16 17 18 19 20 21 22 ldo pd sum a b c d vcc vr e f gnd dvcc dvc fe sbad te vss serout rfclk vdd dfct cc1 cc2 cdfct rfct cb2 cp2 rfrp rfeqo agcin cagc pllf lpfadj rfo cm8 cm4 e f sum a b c d laser pick up te output vdd clock input serial data input enable signal input 1.65v vcc 2.5v analog voltage output fe output sbad output dvcc dfct output rfct output rfrp output rf output ld pd gnd vcc dsp clpf center servo output vr vr vr rfdata rfen rfrpi cp_env cserc cservo
kb9251 cd-rom 48x rf amp 6 4. pin description no name i/o description related block 1 ldo o output of alpc block alpc 2 pd i input for alpc block alpc 3 sum i input for abcd signal rfsum 4 a i input for a signal rfsum 5 b i input for b signal rfsum 6 c i input for c signal rfsum 7 d i input for d signal rfsum 8 vcc p power input for analog block analog 9 vr o 2.5v reference voltage output bias 10 e i input for e signal te amp 11 f i input for f signal te amp 12 gnd p ground for analog block analog 13 dvcc p power input for digital block dsp 14 dvc o 1.65v reference voltage output bias 15 fe o focus error signal output fe amp 16 sbad o sub beam add output sbad 17 te o tracking error signal output te amp 18 vss p digital gnd digital 19 cserc i time constant setting for center position servo servo 20 cservo o time constant setting for center position servo servo 21 serout o error signal output for center position servo servo 22 rfclk i clock input for serial interface s i/f 23 rfdata i data input for serial interface s i/f 24 rfen i data enable input for serial interface s i/f 25 vdd p digital vdd digital 26 dfct o defect detection comparator output dfct 27 cc1 o bottom hold output of defect detection amp dfct 28 cc2 i dfct bottom hold dfct 29 cdfct i capacitor for dfct bottom hold dfct 30 rfct o rfct output , env output mirror 31 cb2 o capacitor for rfrp, rfct mirror
cd-rom 48x rf amp kb9251 7 5. serial interface 5.1 serial interface timing graph ? the serial interface controls the disc type, speed, agc, and laser diode on/off. ? the timing diagram of the serial interface is shown below: ? rfclk : clock synchronized with data from micom ? rfdata : address and data from micom ? rfen : indicates data is enabled 32 cp2 o capacitor for rfrp, rfct mirror 33 rfrp o rfrp output mirror 34 rfrpi i input for mirr mirr 35 cp_env i capacitor for envelope hold env 36 rfeqo o summing and eq signa of a,b,c,dl rfsum 37 agcin i input for agc agc 38 cagc i hold capacitor for agc agc 39 clpf i lpf output buffer ref connecting pin agc 40 pllf i rf frequency control for wide band pll eq 41 lpfadj o lpf frequency select for wide band pll eq 42 rfo o rf signal output rfsum 43 cm8 o eq boost frequency for 8x speed eq 44 cm4 o eq boost frequency for 4x speed eq 4. pin description (continued) no name i/o description related block a 7 a 0 d 7 d 0 a d d r e s s , 8 - b i t d a t a , 8 - b i t r f e n r f d a t a r f c l k
cd-rom 48x rf amp kb9251 8 control signals generated from each address are as below: ? address 01h; : rfeq_sel : abcd_att ? address 02h; : eqg_cen : agc_lvl : c48_sel : cav_sel ? address 03h; : agcon : agcin_z : gain_pllf : pup_sel ? address 04h; : te_lpf : te_att ? address 05h; : dfct_cnst : fe_lpf : fe_att ? address 06h; : servo_ofst ? address 07h; :tbal ? address 08h; : rfrp_freq : rfrp_th : dft_th ? address 09h; : sbad_att : rfrp_att1 ? address 0ah; : ld_on ? address 0bh; : rfrp_sel ? address 0fh; : mode_sel :pdmode table 1. address number 7 6 5 4 3 2 1 0 add 01h 0 0 0 0 0 0 0 1 add 02h 0 0 0 0 0 0 1 0 add 03h 0 0 0 0 0 0 1 1 add 04h 0 0 0 0 0 1 0 0 add 05h 0 0 0 0 0 1 0 1 add 06h 0 0 0 0 0 1 1 0 add 07h 0 0 0 0 0 1 1 1 add 08h 0 0 0 0 1 0 0 0 add 09h 0 0 0 0 1 0 0 1 add 0ah 0 0 0 0 1 0 1 0 add 0bh 0 0 0 0 1 0 1 1 add 0fh 0 0 0 0 1 1 1 1
kb9251 cd-rom 48x rf amp 9 5.2 serial interface ? address: 01h rfeq_sel (d7 - d4): eq mode abcd_att (d2 - d0): abcd attenuate gain select data d7 d6 d5 d4 d3 d2 d1 d0 function rfeq_sel rsv abcd_att initial value 1 0 0 1 0 0 1 0 d7 d6 d5 d4 rf eq select 0 0 0 0 32x 0 0 0 1 26x 0 0 1 0 21x 0 0 1 1 19x 0 1 0 0 16x 0 1 0 1 13x 0 1 1 0 11x 0 1 1 1 8x(cav) 1 0 0 0 8x(clv) 1 0 0 1 4x 1 0 1 0 1x d2 d1 d0 mode 0 0 0 - 6db 0 0 1 - 2.5db 0 1 0 0db 0 1 1 2db 1 0 0 3.5db 1 0 1 5db 1 1 0 6db
cd-rom 48x rf amp kb9251 10 ? address : 02h eqg_cen (d6 - d4): center gain fine control of eq boost gain select agc_lvl (d1 - d0): output level select of agc amp data d7 d6 d5 d4 d3 d2 d1 d0 function rsv eqg_cen c48_sel cav_sel agc_lvl initial value 0 0 1 0 0 0 0 1 d6 d5 d4 center boost gain 0 0 0 3.5db 0 0 1 4.5db 0 1 0 5.5db 0 1 1 6.5db 1 0 0 7db 1 0 1 7.5db c48_sel (d3) : 4x, 8x select 0 : 4x 1 : 8x cav_sel (d2) : cav, clv select 0 : cav mode 1 : clv mode d1 d0 level 0 0.75v 0 1 1.0v 1 1.25v 1 1 1.5v
kb9251 cd-rom 48x rf amp 11 ? address : 03h agcin_z (d6 - d4): input impedance select of rf agc gain_pllf (d2 - d0): peak frequency change sensitivity select of rf_eq.according to pllf?s voltage data d7 d6 d5 d4 d3 d2 d1 d0 function agcon agcin_z pup_sel gain_pllf initial value 1 0 0 1 1 0 1 1 agc on (d7) 1 : agc on 0 : agc off d6 d5 d4 impedance 0 0 0 240k w 0 0 1 60k w 0 1 0 40k w 0 1 1 30k w 1 0 0 20k w 1 0 1 15k w 1 1 0 10k w pup_sel (d3) : rf_sum or a, b, c, d select 0 : rf_sum pick_up 1 : abcd_pick_up d2 d1 d0 frequency change sensitivity according to pllf voltage 0 0 0 - 6db 0 0 1 - 4db 0 1 0 - 2db 0 1 1 0db 1 0 0 2db 1 0 1 4db 1 1 0 6db
cd-rom 48x rf amp kb9251 12 ? address : 04h te_lpf (d5 - d4): te lpf frequency select te_att (d2 - d0): te attenuate gain select data d7 d6 d5 d4 d3 d2 d1 d0 function rsv te_lpf rsv te_att initial value 0 0 0 0 0 0 1 0 d5 d4 mode 0 0 40 khz 0 1 80 khz 1 0 120khz 1 1 360khz d2 d1 d0 mode 0 0 0 - 6 db 0 0 1 - 2.5 db 0 1 0 0 db 0 1 1 1.5 db 1 0 0 2.5 db 1 0 1 3.5 db 1 1 0 5 db 1 1 1 6 db
kb9251 cd-rom 48x rf amp 13 ? address : 05h dfct_cnst (d7 - d6): short time constant of defect detect block select fe_lpf (d5 - d4): fe lpf frequency select fe_att (d2 - d0): fe attenuate gain select data d7 d6 d5 d4 d3 d2 d1 d0 function dfct_cnst fe_lpf rsv fe_att initial value 0 0 0 0 0 0 1 0 d7 d6 defect 0 0 100 m s/v 0 1 25 m s/v 1 0 12.5 m s/v 1 1 5.6 m s/v d5 d4 mode 0 0 40 khz 0 1 80 khz 1 0 120khz 1 1 360khz d2 d1 d0 mode fe att gain 0 0 0 - 6 db 0 0 1 - 2.5 db 0 1 0 0 db 0 1 1 1.5 db 1 0 0 2.5 db 1 0 1 3.5 db 1 1 0 5 db 1 1 1 6 db
cd-rom 48x rf amp kb9251 14 ? address : 06h servo_ofst (d7 - d0): center position servo offset level at ?00?, output of offset is min. at ?ff?, output of offset is max. ? address : 07h tbal (d7 - d0): output voltage swing level is below when input conditions are e : 100mvpp 1khz f : -100mvpp 1khz data d7 d6 d5 d4 d3 d2 d1 d0 function servo_ofst initial value 1 0 0 0 0 0 0 0 data d7 d6 d5 d4 d3 d2 d1 d0 function tbal initial value 1 0 0 0 0 0 0 0 tbal output voltage level 00 1.25 vpp 80 1 vpp ff 0.85 vpp
kb9251 cd-rom 48x rf amp 15 ? address : 08h rfrp_rfeq (d7 - d6): rfrp peak-bottom hold frequency select dft_th (d5 - d3): defect slicer level select rfrp_th (d2 - d0): rfrp level selec data d7 d6 d5 d4 d3 d2 d1 d0 function rfrp_freq dft_th rfrp_th initial value 0 0 0 0 0 0 1 1 d7 d6 rfrp freq rfrp lpf 0 0 40 khz 80 khz 0 1 80 khz 160khz 1 0 120 khz 240khz 1 1 360 khz 720khz d5 d4 d3 slice level 0 0 0 50mv 0 0 1 100mv 0 1 0 200mv 0 1 1 300mv 1 0 0 400mv 1 0 1 500mv 1 1 0 600mv 1 1 1 700mv d2 d1 d0 offset level 0 0 0 - 300mv 0 0 1 - 200mv 0 1 0 - 100mv 0 1 1 0mv 1 0 0 100mv 1 0 1 200mv 1 1 0 300mv
cd-rom 48x rf amp kb9251 16 ? address : 09h rfrp_att1 (d6 - d4): rfrp output level select * when 1vpp, 7% modulation, 10khz carrier input, output vpp change amount. sbad_att (d2-d0): sbad output gain select ? address : 0ah data d7 d6 d5 d4 d3 d2 d1 d0 function rsv rfrp_att1 rsv sbad_att initial value 0 0 1 0 0 0 1 0 d6 d5 d4 mode 0 0 0 - 200mvpp 0 0 1 - 100mvpp 0 1 0 0mvpp 0 1 1 1 00mvpp 1 0 0 200mvpp d2 d1 d0 mode 0 0 0 - 6 db 0 0 1 - 2.5 db 0 1 0 0 db 0 1 1 1.5 db 1 0 0 2.5 db 1 0 1 3.5 db 1 1 0 5 db 1 1 1 6 db data d7 d6 d5 d4 d3 d2 d1 d0 function rsv ld_on initial value 0 0 0 0 0 0 0 1 ld_on (d0) : ld on/off select 0 : ld off 1 : ld on
kb9251 cd-rom 48x rf amp 17 ? address : 0bh rfrp_set (d0): rfrp block output select ? address : 0fh data d7 d6 d5 d4 d3 d2 d1 d0 function rsv rfrp_sel initial value 0 0 0 0 0 0 0 0 d0 output 0 rfrp, rfct 1 envelope data d7 d6 d5 d4 d3 d2 d1 d0 function rsv mode_sel rsv pdmode initial value 0 0 0 1 0 0 0 1 mlde_sel (d4) : cd-rom, cd-rw select 0 : cd-rw 1 : cd-rom pdmode (d0) : power down mode on/off select 0 : power down mode 1 : normal mode
cd-rom 48x rf amp kb9251 18 6. block description 6.1 tracking error amp ? the gain of the e, f signals are controlled by the tracking balance signal(tbal). ? the output of te amp is expressed by -k(e-f). ? cd-rom or cd-rw operation is selected by cdrw signal. ? output stage is compatible to 3.3 v servo operation. 6.2 focus error amp ? the gain of the input signals a, c and b, d can be adjusted by the focus balance signal. ? fe signal is expressed by - k {(pac) - (pbd)}. ? cd-rom or cd-rw operation is selected by cdrw signal. ? output stage is compatible to 3.3 v servo operation. + - + - + - + - + - te .te_lpf vr vr .te_att .mode_sel e f vr .tbal vofst + - + - + - vr .fe_lpf .fe_att fe vofst vr a c b d .mode
kb9251 cd-rom 48x rf amp 19 6.3 agc & eq ? input level of rf amp signal is convert to ouput level selected by agc block. ? it is discreminated that cd-rom or cd-rw. ? agc amp is designed to work with the wide range pll. ? boost control of the summing amp is possible using the eq control switc 6.4 rfrp & rfct block & envelope detector ? this circuit generates rf ? s amplitude signals by detecting the upper envelope, using servo control signals for focus error signal balance adjustment. ? capacitance connected to ce that decides the time-constant value. ? rfrp is a block for detecting signals crossing the track. ? using the ac-coupled abcd signals, carries out peak and bottom hold operation. pick-up .mode_sel .abcd-att rfeqo agcin agc cagc .agcon/off .agc-lvl .agcin_z lpf pllf lpfadj .gain_pllf .rfeq_sel rfo sum a b c d .pup_sel .cav_sel .eqg_cen .rfeq_sel cm4 cm8 + - + - + - clpfi clpf + - vr + - peak -hold1 bottom -hold1 + - peak -hold2 bottom -hold2 + - rfrpi rfct rfrp + - vcc voffset vcc vofst dvc 1 dvc 1 a1 a2 a3 + - peak agcin cp_env
cd-rom 48x rf amp kb9251 20 6.5 defect detector block ? block for detecting defects such as disc scratch or finger prints. ? external capacitor decides the time constant value. ? it detects abcd signals through high speed peak hold and low speed bottom hold. ? after add dc to high speed peak hold, .then compares it to low-speed peak hold output. 6.6 alpc ? circuit for controlling the light power of the laser diode. ? laser power fluctuation caused by voltage and temperature changes are detected by monitor photo diode ? s output current, then it is able to control the stable output power of laser diode. ? alpc on/off is controlled by ldon switch. + - + - + - + - peak- hold .rfrp_freq cc2 dvcc .dft_th dfct cdfct vr cc1 + - vr a b c d .mode_sel vr + - + - + - vdc125 avss cd-on avdd ldo .ld_off p-sub ld
kb9251 cd-rom 48x rf amp 21 6.7 sbad ? e, f signal are excuted tracking balance adjust and added, and passed lpf. ? it is expressed by k (e + f) 6.8 reference block ? this block generates reference voltage. ? the output voltages are 1.65v (from rf part supply input) and 2.5v (from servo part supply input) . 6.9 vdc offset block ? it shifts the output stage to match the servo and dsp block. + - + - e f vr .tbal + - + - + - sbad vr vr .sbad_att vofst vr .mode + - 1.65v dvc dvcc + - 2.5v vr avcc + - vofst dvc vr vr
cd-rom 48x rf amp kb9251 22 6.10 center servo block ? this block controls level shift in seek mode. ? output signal is expressed by - k ((b + c) - (a + d)) pick-up vofst a d b c + - dac + - offset control from micom serout
kb9251 cd-rom 48x rf amp 23 7. electrical characteristics 7.1 bias block 7.2 supply voltage 7.3 tracking error amp no item symbol conditions min. typ. max. unit 1 vr output voltage vr vr voltage measurement 2.4 2.5 2.6 v 2 vr output voltage1 vr1 vr=3ma impression 2.4 2.5 2.6 v 3 vr output voltage2 vr2 vr=-3ma impression 2.4 2.5 2.6 v 4 dvc output voltage dvc dvc voltage measurement 1.55 1.65 1.75 v 5 dvc output voltage1 dvc1 dvc=3ma impression 1.55 1.65 1.75 v 6 dvc output voltage1 dvc2 dvc=-3ma impression 1.55 1.65 1.75 v no item symbol conditions min. typ. max. unit 7 operating power voltage vcc 4.5 5.0 5.5 v 8 power current icc vin = 0 75 85 95 ma no item symbol conditions min. typ. max. unit 9 tracking balance adjustment range tbal1 e: 1khz sine 100mvpp f: 1khz sine(i) 100mvpp tbal=ff - - 0.8 vpp 10 tbal2 e: 1khz sine 100mvpp f: 1khz sine(i) 100mvpp tbal=80 0.9 1.0 1.1 vpp 11 tbal3 e: 1khz sine 100mvpp f: 1khz sine(i) 100mvpp tbal=00 1.25 - - vpp 12 bandwidth (-3db freq.) tbw1 e: 100mvpp sine frequency sweep f: 100mvpp sine frequency sweep - 40 - khz 13 tbw2 - 360 - khz 14 offset voltage tofs1 e,f: vr tbal = 00 (cd-rom mode) - 80 0 80 mv 15 tofs2 e,f: vr tbal = 00 (cd-rw mode) - 320 0 320 mv 16 high output voltage thout - 2.5 - - v 17 low output voltage tlout - - - 0.5 v 18 output voltage 1 teout1 e: 1khz sine 60mvpp f: 1khz sine(1) 60mvpp (cd-rom mode) 1.1 1.2 1.3 vpp 19 output voltage 2 teout2 e: 1khz sine 15mvpp f: 1khz sine(1) 15mvpp (cd-rw mode) 1.0 1.2 1.4 vpp
kb9251 cd-rom 48x rf amp 24 7.4 focus error amp 7.5 agc & eq block no item symbol conditions min. typ. max. unit 20 output voltage 1 feout1 ac in = 300mvpp(each) + sine 1khz + vr, bd in = vr, 1.1 1.2 1.3 vpp 21 output voltage 2 feout2 bd in = 300mvpp(each) + sine 1khz + vr, ac in = vr, 1.1 1.2 1.3 vpp 22 output voltage 3 (cd-r) feout3 ac in = 75mvpp(each) + sine 1khz + vr, bd in = vr, 1.0 1.2 1.4 vpp 23 output voltage 4 (cd-r) feout4 bd in = 75mvpp(each) + sine 1khz + vr, ac in = vr, 1.0 1.2 1.4 vpp 24 voltage gain difference1 d gfe1 gte1-gte2 - 0 - db 25 voltage gain difference2 d gfe2 gte3-gte4 - 0 - db 26 bandwidth (-3db freq.) fbw1 (a,c) : 100mvpp sine frequency sweep (b,d) : 100mvpp sine(i) frequency sweep fe_lpf = 00 32 40 48 khz 27 tbw2 fe_lpf = 11 - 180 - 28 offset voltage foff1 (a-d) : vr, gain_fe=8db, feofst = 80 (cd-rom mode) - 40 0 40 mv 29 foff2 (a-d) : vr, gain_fe=8db, feofst = 80 (cd-r/w mode) - 100 0 100 mv 30 output high voltage fhout - 2.5 - - v 31 output low voltage flout - - - 0.5 v no item symbol conditions min. typ. max. unit 32 frequency characteristic1 f1 - 3db frequency at rfeqo , cav mode, input=2.5v dc 45 - - mhz 33 gain characteristic1 g1 cav mode,cd-rom mode at rfeqo 1 3 5 db 34 gain characteristic2 g2 cav mode,cd-rw mode at rfeqo 13 15 17 db 35 peak frequency1 fp1 clv mode, 4x mode 4.2 5.2 6.2 mhz 36 peak frequency2 fp2 clv mode, 8x mode 8.4 10.4 12.4 mhz 37 agc voltage gain gagc agcin=1vpp, sine, 1meg, agc level adjustment 0.75 - 1.5 vpp 38 agc standard output gagcop agcin=1vpp, sine, 1meg 0.9 1 1.1 vpp 39 maximum gain (gpeak) range rfeqo (a-d):250mvppsweepingsine+vc, clv mode, 8x at 10.4mhz , eqg_cen=3.5 2.5 3.5 4.5 db 40 eqg_cen=5.5db 4.5 5.5 6.5 41 eqg_cen=7.5db 6.5 7.5 8.5
cd-rom 48x rf amp kb9251 25 7.6 rf envelop detector 7.7 rfrp 7.8 rfct 7.9 defect detector no item symbol conditions min. typ. max. unit 42 output voltage 1 voenv1 abcd: not inputting 0.4 - - v 43 output voltage 2 voenv2 abcd: 250mvpp(each) + sine 500khz + vr, no signal standard - 0.7 - v 44 output voltage 3 voenv3 abcd: 250mvpp(each) + sine 500khz + vr - - 2.8 v no item symbol conditions min. typ. max. unit 45 output level 1 vrpo1 rfrpi : 1.0vpp 10khz sine 70% am fcarrier :1mhz modulation 0.9 1 1.1 vpp 46 output level 2 vrpo2 rfrpi : 1.0vpp 30khz sine 70% am fcarrier :1mhz modulation 0.7 - - vpp 47 output level 3 vrpo3 rfrpi : 1.0vpp 80khz sine 70% am fcarrier :3mhz modulation 0.7 - - vpp 48 output level 4 vrpo4 rfrpi : 1.0vpp 160khz sine 70% am fcarrier :6mhz modulation 0.7 - - vpp 49 output level 5 vrpo5 rfrpi : 1.0vpp 320khz sine 70% am fcarrier :10mhz modulation 0.7 - - vpp no item symbol conditions min. typ. max. unit 50 level vctl rfrpi : 1.0vpp 10khz sine 70% am fcarrier : 1mhz modulation 1.35 1.65 1.95 v no item symbol conditions min. typ. max. unit 51 detected min. operation input voltage vdfct1 200hz square wave full am fcar 1mhz sine + vc - 0.3 0.5 v 52 detected max. operation input voltage vdfct2 1.8 - - v 53 high output voltage hout - 2.5 - - v 54 low output voltage lout - - - 0.5 v 55 high speed peak hold charge/discharge time constant range hphr 250mvpp 200hz square wave full am fcar 1mhz sine + vc, rfrp_freq: step variation 5.6 - 100 us/v 56 low speed peak hold discharge time constant range lphr 250mvpp 200hz square wave full am fcar 1mhz sine + vc 10 - 100 us/v
kb9251 cd-rom 48x rf amp 26 7.10 alpc 7.11 sbad no item symbol conditions min. typ. max. unit 57 alpc operating voltage pl vappl vpd=0mv, vldon=0v - - 1.1 v 58 alpc operating voltage ph vapph vpd=600mv, vldon=0v 3.9 - - v 59 ld-off voltage vldof ldc=l, vcc standard - 0.7 - - v 60 alpc operating voltage hp vaphp vpd=2.5v 3.9 - - v 61 alpc operating voltage 1 valpc1 ipd=0.8ma ld impression, vldon=0v 2.5 - - v 62 alpc operating voltage 2 valpc2 ipd=-0.8ma ld impression, vldon=0v - - 2.5 v no item symbol conditions min. typ. max. unit 63 voltage gain 1 sbgv1 f=1khz, cd-rom mode 6 9 10 db 64 voltage gain 2 sbgv2 f=1khz, cd-rw mode 18 21 22 db 65 frequency characteristics sbfc - 3db point - 44 - khz 66 standard operating voltage sbvopr1 vr standard,cd-rom mode - 1.75 - 1.65 - 1.55 v 67 standard operating voltage sbvopr2 vr standard, cd-rw mode - 1.55 - 1.45 - 1.35 v 68 output upper voltage sbvoh gnd standard 2.5 - - v 69 output lower voltage sbvol gnd standard - - 0.5 v
package dimension 44-qfp-1010b #44 note : dimensions are in millimeters. 10.00 + 0.20 13.20 + 0.30 10.00 + 0.20 13.20 + 0.30 #1 0.35 + 0.10 - 0.05 0.80 0.10 max 0.80 + 0.20 0.05 min 2.05 + 0.10 2.30 max 0.15 + 0.10 - 0.05 0-8 0.15 max (1.00)

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