BD3822FS and BD3824FS are audio selectors with internal input selector, gain amp, ALC and power save ON/OFF functions. BD3822FS contains the 1/2 power compression amp for level meter and 2ch volume. BD3824FS contains the line amp. BD3822FS and BD3824FS unify the board pattern by pin compatible, and can be used individually as a high-end and low-end model.
The BD3822FS and BD3824FS are audio selector ICs with internal input selection, gain amp, ALC, and power‑save functions. The BD3822FS includes a 1/2‑power compression amp for level‑meter and 2‑channel volume, while the BD3824FS provides a line amp. Both devices share a pin‑compatible SSOP‑A32 package and can be used on the same PCB.
The document lists absolute maximum ratings, operating ranges, detailed electrical characteristics, and example application circuits for DVD recorders. It also includes ordering information, safety notes, and a disclaimer from ROHM.
| Circuit current (BD3822FS) | 7 mA |
|---|---|
| Output noise (BD3822FS) | 3.2 µVrms |
| Output noise (BD3824FS) | 2.3 µVrms |
| Total harmonic distortion (both models) | 0.0015 % |
The BD3822FS draws up to 7 mA of circuit current.
The BD3824FS has an output noise of 2.3 µVrms.
Both the BD3822FS and BD3824FS have a THD of 0.0015 %.