TB1254N 查看數據表（PDF） - Toshiba

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TB1254N

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

Toshiba 



PIN NAME

48 TV IN

FUNCTION

An input terminal for TV video signal.

(input level 1Vp-p / 140 IRE)

 

INTERFACE

14

1kĦ

2V

48

1kĦ

49 De-Emphasis

•Mon-OUT

A terminal to De-Emphasis Audio signal, and

pick up detected Audio signal. Connect

capacitor (0.01•F to GND.

The time constant 50/75us is set by the

IICBUS control “SIF Freq”.

Remove the capacitor in case of use US/JPN 49

sound multiplex system.

50 PIF TANK

51

Terminals to connect a PIF tank coil.

The tank coil should be pre-set up within +/-

2% for the automatic tuning. Manual tuning is

also available..

50

The resonance capacitance of the tank

should be 18pF.

51

52 DC NF

A terminal for connect the capacitor for DC

NF.

19

14

15kĦ 7.5kĦ 500Ħ

5

1

5

14

52

2kĦ 10kĦ

5

Ver3.7

00/01/28 11

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