CXA2547Q Datasheet, PDF (1/19 Pages) Sony Corporation – 2-band Electronic Volume

CXA2547Q
2-band Electronic Volume
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Description
The CXA2547Q 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.
48 pin QFP (Plastic)
Features
• Loudness
• Volume control
(from 0 dB to –80 dB, –∞ dB : Fine (1 dB-step)
Coarse (8 dB-step)
• Balance
• Tone control
(2-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
(L/R independent operation for the volume block)
• Timer
• Power-off mute
• Countermeasure to the noise of the portable
telephone
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 Conditions
Supply voltage
VCC
7 to 12
V
Structure
Bipolar silicon monolithic IC
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.
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E97Y19B91-TE