October 1991

8

Philips Semiconductors

Preliminary specification

SECAM decoder

TDA8395

APPLICATION INFORMATION

The leakage current at pin 8 should be well below 20 nA to meet the specification of the black levels (C8 = 220 nF).

The leakage current at pin 7 should be well below 60 nA to meet the specification of the Cloche resonance frequency

(C7 = 100 nF).

The capacitors C7 and C8 should be connected to the ground pin as close as possible to the package. If not, this can

result in a black level error for both channels.

TEST INFORMATION

The performance of the Cloche filter can be measured at pin 2. The use of a FET-probe is advised for low capacitive

loading.