TA1274 데이터 시트보기 (PDF) - Toshiba

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TA1274

TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC

Toshiba 

PIN

No.

NAME

FUNCTION

13 RF AGC delay adj.

This terminal is for RF AGC delay

point adjustment.100 µA current is

outputted from this terminal. Connect

a resister (5.6 kΩ) and a volume (10

kΩ) between GND in series.

14 AFT Defeat SW

15 (No function)

16 2 nd SIF input

This terminal is AFT defeat switch.

To open this terminal, AFT function is

activate.

To connect GND this terminal, AFT

function is not activate. And terminal

No.20 goes to 1 / 2 VCC.

This terminal must be connected to

VCC.

This terminal 2nd SIF input.

This terminal must be decoupled

outer circuit on D.C.

TA1274F

INTERFACE CIRCUIT

―

17 AF output

Output resistance of this terminal is

7.5 kΩ.

18

19

VCO tank

Connect tank for VCO between these

terminals.

Capacitance of the VCO tank is 27 pF.

5

2002-12-20

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