NJM2232A

- 2 -

Ver.2003-12-09

■ TERMINAL EXPLANATION

PIN

SYMBOL

Function

1

Supply Voltage Input of IF-AMP 1, RSSI and Reference

2

IF IN

IF-AMP1 ( Limitter Amp.) Signal Input

3

GND

Ground of IF-AMP 1, RSSI and Reference

4

EXT. C1

Capacitor Connection Terminal 1 (Limitter Amp. AC Decoupling)

5

EXT. C2

Capacitor Connection Terminal 2 (Limitter Amp. AC Decoupling)

6

DEC 1

Reference Decoupling Capacitor 1

7

FILT IN

Filter Input between IF-AMP 1 and IF-AMP 2

8

DEC 2

Reference Decoupling Capacitor 2

9

EXT.C3

Capacitor Connection Terminal 3 (Limitter Amp. AC Decoupling)

10

AGND

Ground of IF-AMP 2, and RSSI

11

IF OUT

IF-AMP 2 (Limitter Amp.) Signal Output

12

Supply Voltage Input of IF-AMP 2 and RSSI

13

RSSI

RSSI Input

14

FM-DISCRI Supply Voltage Input

15

QUAD IN

Quadrature Detector Input

16

CGND

FM-DISCRI Ground

17

AF OUT

Audio Signal Output

18

DEC 3

Reference Decoupling Capacitor 3

19

BGND

Mixer Ground

20

MIX IN

Mixer Signal Input

21

OSC 2

Crystal Oscillator Terminal 2

22

OSC 1

Crystal Oscillator Terminal 1

23

Mixer Supply Voltage Input

24

MiX OUT

Mixer Signal Output

■ ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

V

+

12

V

Power Dissipation

700

mW

Operating Temperature Range

Topr

-20 to +75

°C

Storage Temperature Range

Tstg

-40 to +125

°C

■ ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITION

MIN.

TYP.

MAX.

UNIT

Operating Current

11, 21, 22pin, no loading

-

5.2

8.5

mA

Mixer Voltage Gain

18

20

22

dB

RSSI Output Voltage (1)

0.135

-

0.405

V

RSSI Output Voltage (2)

0.41

-

0.71

V

RSSI Output Voltage (3)

2.56

-

2.94

V

RSSI Linearity

(Note 1)

-1

0

1

dB

RSSI Dynamic Range

DR

(Note 1)

90

-

-

dB

IF Output Voltage

1.2

1.4

1.6

V

Audio Output Voltage

Standard Modulation Signal (Note 2)

150

200

250

mV

Total Harmonic Distortion

THD

Standard Modulation Signal (Note 2)

-

-

1

%

S / N Ratio

S / N

Standard Modulation Signal (Note 2)

40

-

-

dB

AMRR

AMR

Standard Modulation Signal (Note 3)

30

-

-

dB

(Note 1) RSSI Linearity has 10 measuring points (-90, -80 to 0dBm) from where getting the ideal linearity by way of mini square method, and

that each 10 measured spots should stay on within the range of ±1dB that can be obtained during the process of the measurement.

Also in the process of the measurement, RSSI dynamic range 90dB can be obtained at the same time.