CXA1821M

CXA1821M RF Amplifier for CD Players Description The CXA1821M is an IC developed for compact disc players. This IC incorporates an APC circuit and RF, focus error, and tracking error amplifiers for 3spot optical pickup output. (The voltage-converted optical pickup output is supported.) Features Low power consumption (40mW at ±2.5V) APC circuit Both single power supply (+5V) and dual power supply (±2.5V) operations possible. Compatible with pickup for LC and PD Supports the RF amplifier at double speed. Applications Compact disc players Structure Bipolar silicon monolithic IC Block Diagram and Pin Configuration FE BIAS LD ON LC/PD RFO RFE VCC EO VC FE TE 20 pin SOP (Plastic) Absolute Maximum Ratings (Ta = 25°C) 12 Supply voltage VCC Operating temperature Topr –20 to +75 Storage temperature Tstg –65 to +150 Allowable power dissipation PD 600 Operating Conditions Supply voltage VCC – VEE V °C °C mW 2.8 to 11.0 V 19 13 20 18 17 16 15 14 TRACKING ERROR AMP VC 12 FOCUS ERROR AMP APC LD AMP RF EQ AMP 5.6k 10k VC VC BUFFER 123k 147 VC EI 10 260k 12p VEE 15k V C 25p 56k 174k VC 23.8k 23.8k VC RF SUMMING AMP VCC 56k 10k 10k 1k VREF 1.25V VEE 28k 26k 820k VEE 260k 24k 30k 24k 30k 24k 30k 24k 1 2 30k VC 7 8 3 4 5 6 F 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. A...