NJM2292 查看數據表（PDF） - Japan Radio Corporation

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产品描述 (功能)

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NJM2292

NARROW BAND FM IF IC

Japan Radio Corporation  

NJM2292

■ ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

Operating Current

ICC

Mixer

Gain

Input resistance

Limiting sensitivity

GMIX

RMIX

LIMIT

Audio output voltage

Filter amplifier gain

Filter amplifier output voltage

RSSI maximum output voltage

RSSI minimum output voltage

Squelch Hysteresis

VOUT

Af

Vref

VRMAX

VRMIN

Hys

Squelch output voltage High level

SPHI

Low level

SPLO

Squelch inverted output voltage High level

SNHI

Low level

SNLO

(V+=2.4V, fC=21.7MHz, fmod=1kHz 1mV, fdev=±3kHz, Ta=25°C)

TEST CONDITION

MIN.

TYP.

MAX.

UNIT

No signal, Squelch off

2.0

2.7

mA

-3dB limiting

VI=1mVrmsy, 1kHz

Rrs=18kΩ, IFin=100mVrms

Rrs=18kΩ, No signal

Rhys=4.7kΩ

30kΩ pull up

30kΩ pull up

20

25

dB

2.7

3.6

4.5

kΩ

3.0

µVrms

50

70

mVrms

45

48

dB

0.75

0.9

1.05

V

0.65

0.9

1.2

V

0.5

V

30

80

105

mV

1.0

1.4

1.8

V

0,2

V

2.2

V

0.2

V

■ TEST CIRCUIT

-2-

Ver.2003-12-09

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