TA1270 データシートの表示（PDF） - Toshiba

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TA1270

TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC

Toshiba 

PIN

No.

PIN NAME

FUNCTION

INTERFACE

TA1270BF

INPUT / OUTPUT

SIGNAL

40 Y input

Composite video signal or Y signal

input pin. Input via the clamp

capacitor.

41 DAC VCC

42 C VCC

VCC pins for DAC block and

CHROMA processing block. Connect

5 V (Typ.).

―

43 UV / CbCr SW

UV / CbCr demodulation switch.

OPEN ―― UV

GND ―― CbCr

CbCr demodulation is effective for

NTSC only.

2.4 V

―

UV

―― 0.7 V

CbCr

―― 0

44 fsc output

Outputs crystal oscillator fsc.

The pin voltage goes high only when

3.58NTSC is received.

AC ; 0.6 Vp-p

DC ;

3.58NTSC

―――3.2 V

OTHERS

―――1.6 V

45 1HDL CONT

Outputs PAL / SECAM / NTSC

identification result.

Adjust to DC and connect output to

1H DL IC.

4.3 V ; PAL

2.5 V ; SECAM

0 V ; NTSC

8

2002-12-24

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