CXA2549M

CXA2549M RF Amplifier for CD Players Description The CXA2549M is an IC developed for compact disc players. This IC incorporates an RF amplifier, focus error amplifier, APC circuit and RF level control circuit. (The voltage-converted optical pickup output is supported.) Features Low power consumption (45 mW at ±2.5 V) High-band RF amplifier APC circuit RF level control circuit 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 Block Diagram and Pin Configuration (50%/30%/OFF) 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 AGCCONT AGCVTH LC/PD LD ON RFTC RF_I RFO VCC RFE FE_BIAS FE TE 24 23 22 21 20 19 18 17 16 15 14 13 VCC RF_EQ_AMP 5.7K APC LD AMP 56k 25p VCC FPCUS ERROR AMP 25.4K VC 50µA 174k 15K 17.4K 670mV 56k 10k 10k 1k VC 5K 164k 87k 13.4k RF SUMMING AMP VCC 10k 14K 25p VC 55k VC VREF 1.25V VC 23.8k 23.8k 158.45k w w w .d h s a t a ee VEE EO LD C A E 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. Appli...