TDA8501 Datasheet, PDF (20/30 Pages) NXP Semiconductors – PAL/NTSC encoder

Philips Semiconductors
PAL/NTSC encoder
Table 2 Internal circuitry.
PIN
NAME
1 −(R−Y)
CIRCUIT
Preliminary specification
TDA8501
DESCRIPTION
−(R−Y) input; connected via
47 nF capacitor
1.05 V (p-p) for EBU bar of 75%
see also pins 3, 5, 7, 9 and 11
2 MCONTROL
multiplexer switch control input
< 0.4 V Y, U and V
>1 V R, G and B
3 −(B−Y)
4 H/2
IN/OUT
April 1993
see pin 1
−(B−Y) input; connected via
47 nF capacitor
1.33 (p-p) for EBU bar of 75%
H/2 input
PAL MODE:
pin open, output of internal H/2
Forcing possibility
NTSC mode:
0 V set-up
5 V no set-up
20