CXA1746Q

CXA1746Q Electronic Volume For the availability of this product, please contact the sales office. Description The CXA1746Q is a 2-channel electronic volume IC. A 34-bit serial data input controls the level and characteristics of the output signal. It may be used in car stereos and general audio systems. Features Loudness Volume control (from 0 dB to –87 dB, –∞ dB: Fine (1 dB-step) Coarse (8 dB-step) Balance Tone control (3-band, 2 dB-step from –15 dB to +15 dB) Fader (2 dB-step to –20 dB, –25 dB, –35 dB, –45 dB, –60 dB, –∞ dB) Input and gain selector (4 channels) Serial data control (DATA, CLK, CE) Single 8 V power supply Zero-cross detection circuit Timer Power-off mute Structure Bipolar IC 48 pin QFP (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 PD 350 mW (Ta = 85 °C) Recommended Operating Condition Supply voltage VCC 6 to 12 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— E94812D7Y CXA1746Q Block Diagram and Pin Configuration TCMC11 TCMC12 GAIN134 LDLC1 LDHC1 TC...