CXA1846AM

CXA1846AM/AN Electronic volume control For the availability of this product, please contact the sales office. Description The CXA1846AM/AN is an electrical volume control IC for use in car radios/stereos and radiocassette recorders featuring serial data control. It has improved over the CXA1846M/N by reducing the ‘pop’ noise during volume level-switchings. Features Volume adjustment (0dB to –87dB, – ∞dB) Balance Serial data control (DATA, CLK, CE) Single 8V power supply Zero-cross detection circuit Structure Bipolar silicon monolithic IC CXA1846AM 20 pin SOP (Plastic) CXA1846AN 20 pin SSOP (Plastic) Absolute Maximum Ratings (Ta=25 °C) Supply voltage VCC 13 V Operating temperature Topr –40 to +85 °C Storage temperature Tstg –65 to +150 °C Allowable power dissipation 350 (75°C) mW PD SOP SSOP 220 (75°C) mW Recommended Supply Voltage Range Supply voltage VCC 6 to 12 V Block Diagram and Pin Configuration INAO1 VRIN1 VCT1 INN1 OUT1 INP1 GND VCT NC VCC 11 100k 20 19 18 17 16 15 14 13 12 100k VOLUME 8dB STEP VOLUME 1dB STEP VCTBUFF LATCH LATCH CONTROL ZCDET SHIFT REGISTER 50K VOLUME 8dB STEP VOLUME 1dB STEP 1 2 3 4 5 6 7 8 VCTBUFF 9 VCTBUFF 10 50K INAO2 VRIN2 DATA INN2 VCT2 INP2 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 il...