cxa2568m Sony Electronics, cxa2568m Datasheet
cxa2568m
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cxa2568m Summary of contents
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... RF Amplifier for CD Players Description The CXA2568M developed for compact disc players. This IC incorporates an RF amplifier, focus error amplifier, tracking error amplifier, APC circuit and RF level control circuit. (The voltage- converted optical pickup output is supported.) Features • Low power consumption ( ±2.5 V) • ...
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... V EE 14k 5k RF SUMMING AMP RF_EQ_AMP ERROR AMP 26k FPCUS VC 820k 174k 820k 25p 23.8k VC 23.8k 26k V CC 30k V EE 30k —2— CXA2568M LC/PD 22 LD_ON 21 HOLD_SW AGCCONT 20 (60%/40%/OFF) 15k VC 19 RF_BOT 18 RFTC 17 RF_I 5.7k 16 RFO 15 RFE 14 FE 158.45k ...
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... —3— CXA2568M Description External hold time- constant pin for RF level control. Variable pin of reference level for RF level control. The reference level can be varied by the external resistor. Output pin of APC amplifier. Input pin of APC ...
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... EE VC 820k 200µ 120 147 15k 12 120 16k V EE —4— CXA2568M Description Input pin of RF and FE amplifiers for Pins and 8. 25p Input pin of tracking error amplifier for Pins 10 and 11. An external resistor for ...
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... V CC 147 25.4k 16 60k 800µ 147 17 15k 20µ —5— CXA2568M Description Output pin of tracking error amplifier. The F-E signal is output. Output pin of focus error amplifier. Equalizing pin of RF amplifier. Frequency response can be adjusted by connecting CR to this pin. Output pin of RF amplifier ...
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... VREF —6— CXA2568M Description External time-constant pin for RF level control. External bottom time- constant pin for RF level control. RF level control ON (limit level %)/ OFF switching pin for for CC open or VC and OFF for V ...
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Electrical Characteristics SW conditions Measurement item Symbol Current consumption V16-1 3 Offset voltage 1 4 Voltage gain V16 Maximum output amplitude H ...
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SW conditions Measurement item Symbol limit V3 limit V3 –60 % limit V3-8 27 –40 % ...
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Electrical Characteristics Measurement Circuit GND E1 AC1 GND GND GND GND GND EE V GND AC2 V EE GND GND GND ...
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... The operation of (B+D)–(A+C) is performed and the signal is output to Pin 14 I-V 23. I-V 23. I-V 23. I-V 23.3k D GND 24k RF SUMMING AMP RF EQAMP 14k 24k 5k 24k 4.2k 4.3k 24k VC VC 25p 174k FOCUS 25p ERROR AMP 174k VC —10— CXA2568M REF 15 5.7k 25.4k RFO 16 RFOUT FE 14 FEOUT V CC ...
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... Pin 23 can be used as a bias for LC when connected I-V 150k 820k 820k E 11 I-V 150k VC GND and as a bias for PD IC when left open. CC 260k 26k VC 158.45k 13k 23.8k TRACKING 23.8k ERROR AMP 12p 260k 26k VC 158.45k 13k VC 12p —11— CXA2568M LC/ TEOUT ...
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... CC V2 13.4k 670mV R10 20k R11 44. R13 100k 15k R12 V1 100k 19 18 RF_BOT RFTC R9 C4 R19 C5 1M 0.1µ 1M 1µ —12— CXA2568M LD ON MICRO 22 COMPUTER HOLD_SW MICRO 21 COMPUTER HOLD VREF 10µ 1.25V R20 12.5k AGCCONT MICRO 20 COMPUTER ...
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... The HOLD_SW pin (Pin 21) is used to switch the hold ON and OFF for the VL signal. Set this pin not to follow the fluctuation of the RF signal. AGCCONT LPC OFF EE M (VC or OPEN OFF by connecting LPC limit VL variable range — Approximately 1. Approximately 1.27 V±350 Approximately 1.27 V±570 mV —13— CXA2568M . EE ...
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... VL–Vhold | 2VT ( HOLD (typ.) Ic=500 µA (VL<Vhold) –500 µA (VL>Vhold) (b) | VL–Vhold | <2VT HOLD (typ.) R=105 2. HOLD : Operation for ON 21 HOLD (typ.) Ib=6 Vhold 1 Vhold 1 Vhold —14— CXA2568M ...
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... V EE Notes on Operation 1. Power supply The CXA2568M can be used either at dual power supply or single power supply. The table below shows the connection of power supply for each case. Dual power supply Single power supply 2. Laser power control The RF level is stabilized by attaching an offset to the APC VL and controlling the laser power in sync with the RF level fluctuations ...
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... GND GND 0.01µ 0.01µ —16— CXA2568M GND GND V EE GND GND ...
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... Package Outline Unit : mm 15.0 – 0 0.45 ± 0.1 SONY CODE EIAJ CODE JEDEC CODE 24PIN SOP (PLASTIC 1.27 0.24 M PACKAGE STRUCTURE MOLDING COMPOUND LEAD TREATMENT SOP-24P-L01 LEAD MATERIAL SOP024-P-0300 PACKAGE MASS —17— CXA2568M + 0.4 1.85 – 0.15 0.15 + 0.2 0.1 – 0.05 + 0.1 0.2 – 0.05 EPOXY RESIN SOLDER PLATING 42/COPPER ALLOY 0.3g ...