LA3242 查看數據表（PDF） - SANYO -> Panasonic

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LA3242

Preamplifier for Compact Cassette Recorder Recording-only Use

SANYO -> Panasonic 

(5) ALC control pin and ON/OFF level

LA3242

Threshold

region

The ALC ON/OFF control circuit is configured as shown left.

When a voltage of (VBE1+VBE2) = 1.5 V or greater is applied to the

ALC CONT17, the potential on the ALC IN (pin 8) drops to GND

level. The ALC is turned OFF (ALC function release).

REC amplifier output VOAC is controlled by the ALC CONT

voltage and the threshold region has a range of approximately 0.5 V.

The ALC CONT voltage is set to 1.0 V or less/1.5 V or greater to

turn ON/OFF the ALC, respectively.

(Refer to Data VOAC, V8, I1 – VALC CONT.)

VGO, VG – fIN

VGO, VG – fIN

Either Me/Nor or Nor/High On

Input frequency, fIN – Hz

ICCO, ICCS – VCC

Input frequency, fIN – Hz

VG – VCC

Supply voltage, VCC – V

Supply voltage, VCC – V

No.2620-7/12

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