CXA2568M

CXA2568M RF Amplifier for CD Players Description The CXA2568M is an IC 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 voltageconverted optical pickup output is supported.) Features Low power consumption (50 mW at ±2.5 V) High-band RF amplifier APC circuit RF level control circuit (Hold circuit included) Both single power supply and dual power supply operations possible. Compatible with pickup for LC and PD Applications Compact disc players Structure Bipolar silicon monolithic IC 24 pin SOP (Plastic) Absolute Maximum Ratings (Ta=25 °C) Supply voltage VCC 12 V Operating temperature Topr –20 to +75 °C Storage temperature Tstg –65 to +150 °C Allowable power dissipation PD 650 mW Operating Conditions Supply voltage VCC—VEE 4.5 to 5.5 V Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits. —1— E97X12-TE CXA2568M Block Diagram and Pin Configuration APC PD AMP 1k VCC HOLD 1 VCC 10k 55k 56k 10k 24 VCC VEE AGCVTH 2 10k 23 LC/PD 56k APC LD AMP VEE VREF 1.25V LD 3 10k 22 LD_ON 13.4k 50µA VCC ...