LA76818 데이터 시트보기 (PDF) - Unspecified

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LA76818

The BUS Control Functions of LA76818 (Tentative)

Unspecified 

Technical Note of LA76818

2002/01/23

PIN 3 (IF AGC Filter)

This is 1st AGC filter pin. The signal, which is peak detected by the AGC

detector, is smoothed by the external capacitor and become to AGC voltage. The 2nd

AGC filter is also built-in into IC. The value of C1 is depending on the speed of AGC,

sag etc, and the recommend value is about 0.022uF.

If the BUS of IF AGC is set as ‘1’, the gain of PIF is set minimally.

Vcc

2nd

AGC Filter

IF AGC

defeat

３

C1

The circumference circuit of pin 3

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