TB1229DN View Datasheet(PDF) - Toshiba

Part Name

Description

Manufacturer

TB1229DN

VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL / NTSC SYSTEM COLOR TV

Toshiba 

TERMINAL FUNCTIONS

PIN

No.

PIN NAME

FUNCTION

1 External Video Input

47 TV Video Input

For inputting external / TV

composite video signal. Input

negative 1Vp-p synchronizing signal

through a coupling capacitor to

these pins.

INTERFACE CIRCUIT

TB1229DN

INPUT / OUTPUT

SIGNAL

Negative 1Vp-p

sync

Controls pin 52 to maintain a

2 V-AGC

uniform V-ramp output.

Connect a current smoothing

―

capacitor to this pin.

VCC for the DEF block (deflecting

3 H-VCC (9V)

system).

―

―

Connect 9V (Typ.) to this pin.

4 Horizontal Output

Horizontal output terminal.

5

Picture Distortion

Correction

Corrects picture distortion in high

voltage variation. Input AC

component of high voltage variation.

For inactivating the picture distortion

correction function, connect 0.01µF

capacitor between this pin and GND.

6 FBP Input

FBP input for generating horizontal

AFC2 detection pulse and horizontal

blanking pulse

The threshold of horizontal AFC2

detection is set H.VCC − 2Vf (Vf ≈

0.75V).

Confirming the power supply

voltage, determine the high level of

FBP.

4.5V at Open

4

2003-03-13

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