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Audio Interface IC

This series integrates all required functions for audio input/output in DVD recorders and LCD TVs. Select from among 6 models based on set requirements.

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Specifications Part No. Package Features
5-input Selector with Electronic Volume Control
BD3822FS

SSOP-A32
5-input Selector
BD3824FS

SSOP-A32
5-input Selector with High-precision Electronic Volume Control
BD3823FV

SSOP-B20

Block Diagram

  
 

Features

Shock noise generated during volume switching eliminated due to soft switching
"ROHM's interfaces feature a resistance-ladder-type high-performance soft switching electronic volume control, making it possible to significantly reduce shock noise generated when changing the volume.

Applicable Model : BD3822FS"
Low crosstalk enables high-fidelity audio recording
Low distortion rate (0.0015%) ensures faithful reproduction of source signals
Two aspect ratio identification signal output circuits
Good frequency characteristics, ensuring compatibility with all types of audio signals


Product Inquiries

Audio Interface IC

Part No. Operating voltage
(V)		 Circuit current
(mA)		 Number of input THD
(%)		 S/N
(dB)		 Output noise
(µVrms)		 Cross talk
(dB)		 Serial Control Input gain
(dB)		 Max. output level
(Vrms)		 Volume Package RoHS
BD3822FS 7.0 to 9.5 7.0 5+Tuner
SAP		 0.0015 - 3.2 -110 I2C
BUS*		 Tuner=8,12 2.5 0 to -49dB/
1dB step
-45 to -78dB/
2dB Step -∞dB		 SSOP-A32 Yes
BD3824FS 7.0 to 9.5 6.4 5 0.0015 - 2.3 -100 I2C
BUS*		 Tuner=0,8,12 2.6 - SSOP-A32 Yes
BD3823FV 7.0 to 14.5 2.5 5 0.0015 - 3.2 -110 I2C
BUS*		 0,2,4,6 4.5
(VCC=
14.5V)		 0 to 30.5dB/
0.5dB Step
 SSOP-B20 Yes