NJM2590/97

Ver.2004-08-25

- 3 -

TEST CIRCUIT

This test circuit allows the measurement of all parameters described in “ELECTRICAL CHARACTERISTICS”. This

test circuit includes some electrical switches that should be in the suitable positions for the measurement of each

parameter. For the best measurement of each parameter, the drawings of ”Test Circuit 1 to 10” are additionally

prepared to show the switching positions and other changes of connection. Note that “Test Circuit 1 to 10” are not

the complete circuit to measure.

Note :

A

1

2

3

4

5

6

7

A

8

9

10

11

12

13

14

RSSI

51

0.1u

0.1u

CD

10u

3.0k

68k

3300p

68k

68k

560p

0.18V

0.01u

100k

1000p

SENSE

LEVEL

100k

10u

RSSI

COMP

QUAD DET

V+

CARRIER

SENSE

RSSI

OUT

FSK

OUT

V+

LPF

10u

CHARGE

IF AMP

FSK

COMP