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Digital Sound Processors for FPD TVs

ROHM digital sound processors for FPD TVs integrate a specialized audio signal processing circuit, simplifying set development. The digital/analog input blocks feature an asynchronous sampling rate converter and audio ADC, respectively, while the output circuits incorporate I2S and S/PDIF compatibility (digital block) and 3 audio DACs (analog block). Special sound effects, including SAS and P2Bass, are built in as well for high fidelity audio playback.

Digital Sound Processor for FPD TVs
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Specification Part No. Package Function
28bit Audio DSP with Built-in 2ch ADC, 6ch DAC and ASRC
BU9406KS2

SQFP-T80C
32bit Audio DSP with Built-in 4ch DAC and ASRC
BU9408KS2

SQFP-T52
32bit Audio DSP
BU9409FV

SSOP-B40
32bit Audio DSP
BU9414FV

SSOP-B40

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Digital Sound Processors for FPD TVs

Part No. Power supply (V) Datawidth (bit) DataRAM (bit) Coefficient RAM (bit) Digital Input Select Digital Output ASRC ADC DAC P2Volume P2Bass P2Treble P-EQ Tone control Package RoHS
BU9406KS2 3.0 to 3.6 28 256×28 128×24 Stereo 4 Stereo 4 1 Stereo 1 Stereo 3 - Ö Ö 12 Band P-EQ use SQFP-T80C Yes
BU9408KS2 3.0 to 3.6 32 256×32 128×24 Stereo 4 Stereo 3 1 - Stereo 2 Ö Ö Ö 7Band 3Band Bass Middle Treble SQFP-T52 Yes
BU9409FV 3.0 to 3.6 32 256×32 128×24 Stereo 2 Stereo 3 - - - Ö Ö Ö 7Band 3Band Bass Middle Treble SSOP-B40 Yes
BU9414FV 3.0 to 3.6 32 256×32 128×24 Stereo 2 Stereo 3 - - - Ö Plus
harmonics		 Ö 7Band Bass Middle Treble SSOP-B40 Yes