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| www..com BA5946FP IC CD BA5946FP 4ch BTL BA5946FP CD 4ch BTL LSI PWM ) BA6392FP (1 BA6297AFP ! CD CD-ROM ! 1) HSOP28pin 2) PWM 1 RC RC 3) 4) ! Ta=25 Parameter Symbol VCC Pd Limits 13.5 1.7 -30~+85 -55~+150 Unit V W C C Topr Tstg PCB(70mmx70mm Ta=25C 1.6mm 1C ) 13.6mW ! Parameter Symbol VCC Min. 6.0 Typ. - Max. 13.2 Unit V www..com BA5946FP IC ! 28 27 26 25 24 23 22 21 20 F 19 R 18 17 16 15 D D 100k 190k VCC VCC D D MUTE R F F R 40k D D D D R F F R 1 2 3 4 5 6 7 8 9 10 R INTERFACE ! Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 23 25pin Pin name CH1OUTF CH1OUTR CAPA IN1 CH1R IN CH1F IN VREF IN VREF OUT GND CH2F IN CH2R IN CHPA IN2 CH2OUTR CH2OUTF GND CH1 CH1 CAPA CH1PWM CH1PWM 1 GND CH2PWM CH2PWM CAPA CH2 CH2 GND + - Function 2 LEVEL SHIFT THERMAL SHUTDOWN INTERFACE F 50k 50k 40k INTERFACE 11 12 13 14 Pin No. 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Pin name MUTE CH3OUTF CH3OUTR CAPA IN3 CH3R IN CH3F IN VCC VCC VBIN VSIN VBIN CH4OUTR CH4OUTF GND Function CH3 CH3 CAPA CH3PWM CH3PWM VCC VCC CH4 CH4 CH4 CH4 CH4 GND 3 www..com BA5946FP IC ! Ta=25 , VCC=8V, RL=8 Parameter Symbol IQ VBIAS VBIAS VMON VMOFF < > VIH VIL IIH IIL VOO VOHD VOLD ICONST C tr tf tr-f LIN RR < > IB VICM VOHD VOLD GVC SR RRS 1 VIN=VREF0.5V VO=VO1 1.0V LIN=(VO3-VO2) / (VO2-VO1)x100[%] VO=VO2 Min. 8 3.40 -30 2.0 - 2.4 - 100 -10 -30 5.2 - 20 - - - -160 90 - - 1.6 5.2 - 8.0 - - 1.5V Typ. 13 3.70 - - - - - 180 0 - 5.6 1.3 27 24 0.08 0.55 - 100 70 10 - 5.6 1.3 10.5 2 70 VO=VO3 Max. 18 4.00 30 - 0.5 - 0.5 260 10 30 - 1.6 34 - 1 1 160 110 - 300 6.4 - 1.55 13.0 - - Unit mA V mV V V V V A A mV V V A pF s s ns % dB nA V V V dB V/s dB Conditions 1mA Measurement circuit Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 VIN=5V VIN=0V FIN=5V, RIN=0V FIN=0V, RIN=5V VIN=VREF0.5, 1, 1.5V 1 VIN=100mVrms, 100Hz VIN=100mVrms, 100Hz www..com BA5946FP IC ! V3 VCC V3 A2 IN PDR PDF VREF VREF V9 IB IFR A2 IN PDR IC IN IFR 100k A4 SIN OPEN 50 IQ ~ 10F 1000F A3 ICON IPULSE OPEN LIN + - V8 V11 V10 RL SW2 V6 V4 V5 RL SR V12 ~ A1 V7 V2 28 27 26 25 24 23 22 21 20 F D D 19 R 18 17 16 15 MUTE ON 0.5V OFF 2.0V 100k 190k VCC VCC D D MUTE R F F R 40k D D D D R F F R 1 2 3 4 5 6 7 1F 8 9 10 R INTERFACE RL V5 V4 LIN OPEN ICON IPULSE PDR IN PDF PDR IN IC PDF V6 - + VREF A3 100k VREF VREF IFR IFR IFR A2 A2 A2 A2 IFR V3 + - LEVEL SHIFT THERMAL SHUTDOWN INTERFACE F 50k 50k 40k INTERFACE 11 12 13 14 RL V5 V1 IC IREF PDF IN PDR PDF IN OPEN PDR ICON IPULSE LIN V4 V6 - + A3 100k V3 V3 V3 Fig.1 www..com BA5946FP IC ! 1) CH1CH3 () I1 SW1 F BUF1 24pF OUT R A OUT F SW2 I2 100k BUF2 F L L H H H ... 2.4V L ... 0.5V R L H L H SW1 OFF OFF ON OFF SW2 OFF ON OFF OFF R INTER FACE Fig.2 F(R) 5V 0V OUT F(R) VREF OUT R(F) R(F) 0V 0V Fig.3 Fig.4 IC Fig.3 (H 2.4V ) SW1 SW2 ON (Fig.2) I1 RC DUTY BUF1BUF2 BTL (Fig.4) () H A DC I1 x R o 2.5V ( -2.5V) VREF 5V R x C = 2.4s A (3, 11, 18pin) C VREF (ICONST) Fig.2 I1 I2 2) CH4 () 23 25pin IC BIAS 23 25pin BIAS VREF BTL RC () 2 190k 100k - + 2.5V Fig.5 www..com BA5946FP IC ! FOCUS ERROR OUT FORWARD REVERSE DIGITAL SERVO SPINDLE OUT BIAS 2.5V SLED OUT FORWARD REVERSE TRACKING ERROR OUT FORWARD REVERSE MUTE SPINDLE MOTOR VCC=8V SLED MOTOR M M 28 27 26 25 24 23 22 21 20 F 19 R 18 17 16 15 D D 100k 190k VCC VCC D D MUTE R F F R 40k D D D D R F F R 1 2 3 4 5 6 7 8 9 10 R INTERFACE FOCUS COIL ! 1) BA5946FP 180C (typ.) 2) (15pin) 0.5V 3) ON 4ch + - LEVEL SHIFT THERMAL SHUTDOWN INTERFACE F 50k 50k 40k INTERFACE 11 12 13 14 TRACKING COIL Fig.6 www..com BA5946FP IC ! 5 200 20 12 RL=8 200 20 8 7 6 RL= 5 12 RL=8 OUTPUT VOLTAGE : VOUT (V) OUTPUT VOLTAGE : VOUT (V) OUTPUT VOLTAGE : VOUT (V) 4 3 2 1 -2 -1 0 -1 -2 -3 190k 4 3 2 1 -4 -3 -2 -1 0 -1 -2 -3 -4 -5 V OFF 100k 190k 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 Forward RL=8 1 2 1 2 3 4 5 10 15 Reverse RL=8 RL= -4 V 100k - + V -5 OFF - + V INPUT VOLTAGE : VIN (V) INPUT VOLTAGE : VIN (V) SUPPLY VOLTAGE : VCC (V) Fig.7 (CH4) Fig.8 CH1~CH3 Fig.9 CH1~CH3 !Unitsmm 18.50.2 28 15 9.90.3 7.50.2 1 14 5.150.1 0.250.1 2.20.1 0.11 0.8 0.350.1 0.08 M 16.00.2 0.1 S HSOP28 0.50.2 |
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