7.1ch Sound Processor for High-Quality Audio with Built-in Micro-step Volume - BD34704KS2

The BD34704KS2 is an 8ch independent volume system realized high-quality sound by improved specification of op-amp and optimized layout of the element.The system is designed to allow 7.1ch surround system application. Micro-step volume can reduce the switching pop noise during volume attenuation, so a high quality audio system could be achieved. This IC is available 12ch single-end input selectors to maximum 3 zones. And also available 2 system multi input selector.

Part NumberStatusPackageUnit QuantityMinimum Package QuantityPacking TypeRoHS
BD34704KS2ActiveSQFP-T80C500500TrayYes

BD34704KS2 Data Sheet

Specifications
Vcc(Min.)[V]6.5
Vcc(Max.)[V]7.5
Iq[mA]32.0
I/F2-wire
THD[%]4.0E-4
Output Noise[µVrms]1
Output voltage(Max.)[Vrms]4.2
Operating Temperature (Min.)[°C]-40
Operating Temperature (Max.)[°C]85
Technical Documents
Features
  • 12ch input selectors (It is extendable to up to 18 in case of no use other functions such as Multi input, REC output and SUB output)
  • Micro-step volume can reduce the switching pop noise during volume attenuation
  • Zone 3 is supported
  • 2ch sub-volume for zone output that is available for independent control with a micro step function
  • 2-wire serial bus control, corresponding to 3.3/5V
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Application Note BA12004BF
Part Explanation BA12004BF
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