TDA8501 View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

TDA8501

PAL/NTSC encoder

Philips Electronics 

Philips Semiconductors

PAL/NTSC encoder

Preliminary specification

TDA8501

Fig.2 Pin configuration.

PINNING

U and V respectively, are the terms used to describe the colour difference signals at the output of the matrix.

SYMBOL

−(R−Y)

MCONTROL

−(B−Y)

H/2

Y

U OFFSET

R

VCC

G

VSS

B

V OFFSET

VREF

CHROMA

FLT

CVBS

PIN

DESCRIPTION

1 colour difference input signal, for EBU bar (75%) 1.05 V (p-p)

2 multiplexer switch control input; HIGH = RGB, LOW = −(R−Y), −(B−Y), Y

3 colour difference input signal, for EBU bar (75%) 1.33 V (p-p)

4 line pulse input/output divided-by-2 for synchronizing the internal H/2, if not used, this pin

dependent on mode selected, is either left open-circuit, or connected to VCC or to ground

(note 1)

5 luminance input signal 1 V nominal without sync

6 U modulator offset control capacitor

7 RED input signal for EBU bar of 75% 0.7 V (p-p)

8 supply voltage; 5 V nominal

9 GREEN input signal for EBU bar of 75% 0.7 V (p-p)

10 ground (0 V)

11 BLUE input signal for EBU bar of 75% 0.7 V (p-p)

12 V modulator offset control capacitor

13 2.5 V internal reference voltage output

14 chrominance output

15 filter tuning loop capacitor

16 composite PAL or NTSC output, 2 V (p-p) nominal

April 1993

4

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