BA7755AF - High-voltage audio head selection switch

ROHM

Key Features

1) High withstanding voltage ( ± 65V DC (Min. ), AC120VP-P (Min. ), f = 70Hz). 2) Circuits for either current control or voltage control are provided on the chip. 3) Compact SIP 5pin or SOP 8pin package.
Block diagram BA7755A 1 VCC 2 SW 3 4 5 GND CTRL2 CTRL1 BA7755AF CTRL1 8 7 6 5 N. C. N. C. N. C. 1 2 3 4 VCC HEAD GND CTRL2 SWITCH 1 Video ICs BA7755A / BA7755AF.
Absolute maximum ratings (Ta = 25°C) Parameter Power supply voltage Power dissipation Oper.

BA7755AF high-voltage audio head selection switch by ROHM - Datasheet Preview

Datasheet Details

Part number	BA7755AF
Manufacturer	ROHM
File Size	59.95 KB
Description	High-voltage audio head selection switch
Datasheet	BA7755AF Datasheet

Other Datasheets by ROHM

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Video ICs High-voltage audio head selection switch BA7755A / BA7755AF The standard audio circuits of video cassette recorders and the recording circuits of tape decks use AC bias recording to record the audio signal onto the tape. This bias voltage is some tens of volts, and a high-capacity bias-side switch is required to electronically switch the head when in playback or record mode. The BA7755A and BA7755AF are high-voltage switching ICs designed to switch voltages as high as ± 65VDC or AC120VP-P (f = 70Hz). Two control systems, one for current control, and one for voltage control are provided, so the ICs can be used in circuits that employ either method.