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TA1276AN

PAL / NTSC VIDEO CHROMA AND DEFLECTION IC FOR CTV (NORMAL SCAN / DOUBLE SCAN MODE)

Toshiba 

TERMINAL FUNCTIONS

PIN

No.

PIN NAME

FUNCTION

1 fsc output

Outputs oscillation waveform of

VCXO.

When 3.58NTSC killer-off this pin

voltage sets 3.2V.

When B / W or other systems

killer-off, this pin voltage sets 1.4V.

Outputs SCP (Sand Castle Pulse).

The output signal consists of clamp

2 SCP output pulse, horizontal blanking pulse, and

vertical blanking.

The minimum load resistance is 3kΩ.

INTERFACE CIRCUIT

TA1276AN

INPUT /

OUTPUT

SIGNAL

DC

3.58NTSC

:3.2V

B / W or Others

system

:1.4V

AC

0.6Vp-p

3

SECAM

control

The input / output pin that is used to

control the SECAM demodulation IC.

When current stronger than 250µA

flows from this pin, that is recognized

as SECAM.

When

PAL / NTSC

4.0V

When SECAM

0.75V

4 Y1 output

Outputs the Y signal that routed the

fsc TRAP (TRAP can be turned on or

off with Bus.) and the Y delay line

circuit.

Outputs B-Y (U) or I signal.

5 U / Q output It includes LPF that can remove

carrier.

DC

2.5V

Rainbow

color bar

: 360mVp-p

4

2002-03-29

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