LA1225MC datasheet(4/8 Pages) ONSEMI

Part #	LA1225MC

Description	FM IF Detector IC

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Manufacturer	ONSEMI [ON Semiconductor]

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LA1225MC

No.A2052-4/8

Pin Functions No-Signal Voltage at VCC = 3.0V

Pin No.

Function

No-signal

voltage (V)

Equivalent circuit

Notes

1

IF input

1.2

Input impedance

RIN = 330Ω

2

Reg

1.2

Vreg = 1.2V

3

GND

0

4

S-meter output

0.1

Open collector output.

The SD sensitivity can be adjusted with an

external resistor connected to this pin.

5

VCC

3.0

6

Demodulated output

1.5

Output impedance

ROUT = 3kΩ

7

DET

3.0

The detector coil is inserted between pin 7

and pin 5 (VCC).

Continued on next page.

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