TA8721ASN 查看數據表（PDF） - Toshiba

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TA8721ASN

DUAL SIF SYSTEM FOR TV

Toshiba 

TERMINAL FUNCTION

PIN

No.

PIN NAME

FUNCTION

1 Limiter Input (1)

A sound carrier is input from SAW filter.

TA8721ASN

INTERFACE CIRCUIT

The De-Emphasis time constant is defined

2 De-Emphasis (1) by external capacitor.

5 Sound Output (1) This is an FM detector circuit output

terminal.

This is a connection terminal of sound

detection coil.

3 Limiter Output (1) This will be of no-adjustment type by using

4 SoundDetection(1) ceramic discriminator.

A sound muting will be performed by

connecting pin 4 to GND.

6 SIF GND

Connect a bypass capacitor between this

pin and SIF VCC of pin 12.

―

2001-02-06 2/9

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