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Multimedia ICs

Vocal fader IC

BA3837 / BA3837F / BA3838F

The BA3837, BA3837F and BA3838F are ICs with an internal secondary active LPF for vocal cancellation functions

and mixing amplifier functions with high degrees of vocal cancellation. Three control pins are used to switch between

modes: the key controller input mode, through mode, vocal fader mode, sound multiplexing mode and mute mode.

By offering these functions on a single chip, these ICs can significantly reduce the number of external components.

Karaoke functions on stereo systems, portable stereos and VCRs

1) Single-chip IC with vocal fader, to erase vocals from

commercially available recordings.

2) Internal secondary active LPF for high degrees of

vocal cancellation (high synchronization rejection).

3) Three control pins for switching between 4 modes:

through, vocal fader, sound multiplexing and mute.

4) Key controller input and internal switches.

5) Low noise and low distortion.

6) Internal microphone mixing amplifier.

7) Available in two packages: DIP 16-pin and SOP 16-

pin (BA3838F is available in SOP 16-pin only).

Parameter

Symbol

Limits

Unit

18

V

DIP16

Pd

mV

SOP16

Topr

°C

Tstg

°C

– 40 ~ + 85

– 55 ~ + 125

Power supply voltage

Power

dissipation

Operating temperature

Storage temperature

Parameter

Symbol

Min.

Typ.

Max.

Unit

5.4

—

10

V

5.4

—

13

V

4.0

—

15

V

Ta = 25

°C

Ta = – 40

°C ~ + 85°C

Ta = – 40

°C ~ + 60°C

Conditions