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.
rt 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 |
|
|