TD7104FG 데이터 시트보기 (PDF) - Toshiba

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TD7104FG

TOSHIBA Bipolar Digital Integrated Circuit Silicon Monolithic

Toshiba 

Pin Function

Pin No.

1

Symbol

VCC

2

FMIN

Pin Name

Power supply terminal

FM local OSC. signal

input terminal

3

TVIN

TV local OSC. signal

input terminal

4

GND

Ground terminal

5

Out

Dividing signal output

terminal

6

N1

Dividing ratio selecting

control terminal

7

N2

8

BIAS

BIAS terminal

TD7104FG

Function And Description

Remarks

Applies voltage of VCC = 3.0 to 5.5V

―

Inputs local oscillation signal in FM band.

fIN = 50 to 200MHz, FMIN input signal is

output by a 1 / 1 dividing ratio (buffer amplifier).

Built−in input

Amp. provided

Inputs local oscillation signal in TV band.

FIN = 50M to 1.0GHz, TVIN input signal is

output by a 1 / 8, 1 / 4, or 1 / 2 dividing ratio,

which is controlled through N1 and N2 input.

Grounds.

Built−in input

Amp. provided

―

Outputs dividing signal.

―

These inputs control the selection of a

dividing ratio among 1 / 1, 1 / 2, 1 / 4, and

1 / 8.

FMIN terminal is selected at N1 = N2 = "L"

―

level (1 / 1 dividing).

The truth table is shown below.

Connects capacitors on bias circuit.

Change this pin to low to convert the IC is to

―

stand−by mode.

Truth Table

Receiving Band

FM

Input Terminal

FMIN

TV

TVIN

Operating Frequency Range

50M~200MHz

50M~400MHz

100M~500MHz

100M~1.0GHz

Dividing Ratio

÷1

÷2

÷4

÷8

N1

N2

0

0

1

0

0

1

1

1

2

2004-08-06

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