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TB1274BFG

TOSHIBA Bi-CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC

Toshiba 

TB1274BFG

TERMINAL DESCRIPTIONS (YC-VCC/SYNC-VCC/D-VDD=5V and Ta=25℃, unless otherwise specified)

PIN

No.

PIN NAME

FUNCTION

INTERFACE CIRCUIT

INPUT / OUTPUT

SIGNALS

32

1

CVBS1/Y1-IN

Input CVBS1/Y1 signal through a

clamping capacitor.

1

250Ω

CVBS : 1Vp-p

Y : 1Vp-p(with sync)

DC : 1.8V

28

12

1kΩ

2 SYNC-IN

Input signal to synchronize.

2

1Vp-p (with sync)

DC : 1.7V

16

32

3 CVBS-OUT CVBS or Y+C signal output pin.

50Ω

3

2Vp-p(with sync)

DC : 0.6V

4 VS

Output pin of vertical

synchronizing signal.

4

Minimum pull-up resister is

6.8kΩ.

28

12

Hi

Low

50Ω

4.7V≦Hi≦5.2V

0V≦Low≦0.8V

16

32

Input luminance signal from

5 COMB Y-IN Comb filter through a clamping

capacitor.

5

250Ω

1Vp-p(with sync)

DC : 1.8V

6 D-VDD

Power supply pin for

DDS/BUS/V-CD/H-CD sections.

Input chroma signal from Comb

filter through a clamping

capacitor. When this pin is

7

COMB C-IN connected to Vcc, color killer is 7

/ FORCED-S OFF and SECAM ID is ON

forcibly. (Forced SECAM mode)

Refer

to

FUNCTION

DESCRIPTION.

－

250Ω

C

50kΩ

20kΩ

28

DC 5V

32

Forced-S

0.3Vp-p(Burst)

DC : 2.4V

4.0V≦Forced-S≦5.0V

(Th : 3.5V)

28

3

2005-08-18

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