TDA8505 Datasheet, PDF (24/32 Pages) NXP Semiconductors – SECAM encoder

Philips Semiconductors
SECAM encoder
PIN
25
NAME
Y+SYNC OUT
CIRCUIT
Preliminary specification
TDA8505
DESCRIPTION
output of the delayed Y+SYNC
signal, connected to the delay line
via a resistor
26
XTAL/PLL
VIDENT
27
VCO4.25
July 1994
BB
BB BB
control pin:
without vertical identification:
0 V PLL tuning
5 V crystal tuning
with vertical identification:
2.5 V PLL tuning
tuning of 4.25 MHz oscillator:
PLL tuning:
C = 270 pF to ground
crystal tuning:
BB
crystal in series with a
capacitor to ground
external tuning:
signal via 1 nF capacitor in
series with a resistor
24