TB1254N View Datasheet(PDF) - Toshiba

Part Name

Description

Manufacturer

TB1254N

PAL / NTSC / SECAM 1CHIP (IF+VCD PROCESSOR) IC

Toshiba 



 

PIN NAME

FUNCTION

43 C-IN

An input terminal for chroma signal.

(standard burst amplitude level 286mVp-p•

The low/High impedance status of this pin

can be read by bus to detect if S port is

connected or not.

43

44 Cr IN

45 Cb IN

Input terminals for Cb/Cr signals.

This terminal is clamped by charging /

discharging the coupling capacitors, therefore

input with low impedance, 100•or less are

recommended.

44

B.B.TINT•-/+12deg• Sub color control are

available for Cb/Cr input signals.

45

INTERFACE

1kĦ

75kĦ

2.25V

2.5V

42

19

42

46 EXT IN

An input terminal for external video signal.

(input level 1Vp-p / 140 IRE)

clamp

1kĦ

2V

46

1kĦ

19

14

47 LOOP FILTER

A terminal to be connected with loop filter for

PIF PLL.

The terminal voltage is controlled PIF VCO

frequency.

47

19

5V 1

1kĦ

1kĦ

500Ħ

15kĦ

5

Ver3.7

00/01/28 10

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