M62475FP Mitsumi Electronics, Corp., M62475FP Datasheet
M62475FP
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M62475FP Summary of contents
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... AUTOMATIC ADJUSTMENT CD PREAMPLIFIER SERVO CONTROLLER DESCRIPTION The M62475FP that contains preamplifier/servo amplifier necessary for optical pickup servo control for CD player. This IC also supports automatic adjustment with microcomputer control. FEATURES Pickup servo control can consist of the M62475FP only Supporting 3-beam system ...
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... TE GAIN TE TS NON- TS REVERSE REVERSE CONTROL OUT INPUT INPUT TG1 TC/ TG2 INPUT SW SHOCK SW OUTPUT MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP CONSTANT FOR DATA JP1 ADJUSTMENT FILTER INPUT INPUT DATA CLOCK LATCH OUTPUT INPUT INPUT I/F RESET ...
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... Power dissipation Thermal derating (Ta 25˚C) Operating ambient temperature T opr Storage temperature T stg AUTOMATIC ADJUSTMENT CD PREAMPLIFIER SERVO CONTROLLER Function Ratings Unit 750 mV 7.5 mW/˚C -20 to +75 ˚C -40 to +125 ˚C MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP ...
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... Vi=50mVrms Comparison with G VFS Vi=4.0V Vi=1.0V VREF reference voltage VREF reference, pin 35 voltage VREF reference, pin 35 VREF reference Vi=50mVrms Vi=4.0V Vi=1.0V VREF reference VREF reference Vi=50mVrms Comparison with G VTS Vi=4.0V Vi=1.0V VREF reference MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP Limits Min. Typ. Max. 20.0 30.0 40.0 2.4 2.5 2.6 3.1 5.1 7.1 9.7 11.7 13.7 1.4 2.0 — — 3.5 4.0 — 1.0 1.5 +60 ...
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... C (Pin )=680pF 19 + VREF reference - VREF reference C (Pin )=2.2nF 27 Pin , VREF reference 34 Pin , VREF reference 34 Pin , VREF reference 6 Pin , VREF reference 6 MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP Limits Min. Typ. Max. +0.10 +0.15 +0.20 -0.20 -0.15 -0.10 +42.5 +62.5 +82.5 -42.5 -62.5 82.5 +110 +140 +170 -170 -140 -110 — — ...
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... FSR I :Focus search current FSR At time of rising:110µA At time of falling:60µA FSR Vth± Voltage setting Vth+:Vref+0.7V Vth-:Vref-0.7V MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP FOCUS SEARCH CIRCUIT SEARCH VOLTAGE DETECTION FOCUS SEARCH OPERATION FOCUS SERVO ON t ...
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... I/V CONVERSION AMPLIFIER ADJUSTMENT RESISTANCE BIAS VOLTAGE EQUIVALENT CIRCUIT (Tracking Focus Gain) GAIN ADJUSTMENT ERROR AMPLIFIER COMMAND LATCH SIGNAL MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP TRACKING ACTUATOR ADJUSTMENT RESISTANCE VOLTAGE COMPARATOR MONITOR TERMINAL (to MCU) BIAS VOLTAGE TRACKING ACTUATOR OR FOCUS ACTUATOR VOLTAGE ...
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... NO CBA < 7 END OF ADJUSTMENT YES Vthc+ CBA+1 CLPF PIN 27 DATA OUT=0 NO YES DOUT PIN CBA-1 MCU CHECK POINT ADJ COMMAND END OF ADJUSTMENT MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP V Vref Vthc CBA Vref Vthc CBA ...
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... Sledge servo OFF For SS SW, SF SW, and SR SW, refer to 'TRACK Function Table'. SR Reverse sledge Forward sledge SF Sledge servo ON MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP They are held until new data is entered. Data out pin output D1 D0 Sledge FSOK/ ADJ ...
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... Test conditions " (at the falling " (at the falling OUTPUT "1" status "0" OUTPUT "1" status "0" MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP MSB Limits Min. Typ. Max. — 100 200 2.5 5 — ...
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... Signal Waveform with a jump KICK PULSE ( OUT BRAKE PULSE JP1 AUTOMATIC ADJUSTMENT CD PREAMPLIFIER SERVO CONTROLLER OFF OFF OFF ON ON OFF OFF OFF OFF OFF OFF ON ON OFF OFF OFF MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP ( ...
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... TCDet output is output. TC TRUE VALUE LIST Output FSOK "1"Mirror "0"Track MR signal detector Detects an envelope of the HF signal and sends data to the internal logic controller. MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP SLEDGE (D3, D2 ...
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... CRC=1 ? TRACK_ADJ FOCUS_ADJ BALANCE_ADJ END Note:Pick-up servo operation preparatory completion. For example, reading TOC requires to move pick-up to the innermost circumference. MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP NO Move inside [00000001] sending YES NO FOCUS servo check YES Focus gain preparatory adjustment Track balance conflict adjustment ...
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... ZZ=11 YES NO YES JP1 1300 Hz output for 160 msec NO YES END Note: Set the frequency of the adjustment signal according to the system. MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP FOCUS_ADJ 5 FOCUS_ADJ ZZ=11 CBA=FOC ADJUST FOC=CBA END (For T msec LPF capacitor discharge ZZ=10 YES JP1 ...
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... Data Out=0 to 100 to 1000 YES HFD=0 8-2. SHORT_JUMP SJ1 SJ2 MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP NO HFD=1 SHORT_JUMP HFD=1 Move to the outside Send [00100100] Send [00101000] COUNT JP1=0 Set timer to 5 msec CATCH JP1=1 Wait 15msec ...
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... Send [00111111] (No latch signal) LC=180µsec/ (Loop time) LOOPN=LC DATA OUT Time over ? LC=LC-1 YES NO NO YES END Send latch pulse MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP CATCH JP1=0 NO YES LC=LOOPN DATA OUT=1 YES YES Time over ? LC=0 YES LC=LC-1 NO LC=0 YES END ( ...
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... SHORT_JUMP label) AUTOMATIC ADJUSTMENT CD PREAMPLIFIER SERVO CONTROLLER 8-4. LONG_JUMP LONG_JUMP Move to the outside YES Send [00111010] HFD=1 Wait 150msec Send [00111000] Wait 30msec Set the timer to 120 msec SJ2 MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP NO Send [00110101] (Jump to the SHORT_JUMP label ...
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... MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP TEST CONTROLLER 2.2n 100k 47µ 22k 6.8k 2.2k 680p Units Resistance : Capacitance : ...
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... TS1 56k 1M 82k 3.3k 1µ 100 5.6k 0.22µ 100n 15k 100p 22n MITSUBISHI ELECTRIC MITSUBISHI SOUND PROCESSOR ICs M62475FP MCU 47µ 56k 2.2µ I/F ADJUST RESET 56k 47k 47k 47k BIAS (COM ...