—5—

CXA1619AM/AS

Voltage (V)

No.

Symbol

Equivalent circuit

Description

FM AM FM AM

19 (20)

20 (21)

21 (22)

22 (23)

23 (24)

24 (25)

25 (26)

26 (27)

28

(29, 30)

METER

GND

AFC/AGC

AFC/AGC

DET OUT

AF IN

RIPPLE

FILTER

GND

1.6 1.6 4.5 4.5

0

0

0

0

1.25 1.49 1.25 1.49

1.25 1.25 1.25 1.25

1.25 1.0 1.25 1.0

0

0

0

0

2.71 2.71 5.4 5.4

3.0 3.0 6.0 6.0

0

0

0

0

GND

19

×3

N

1.25V

22

21

23

33k 39k

GND

24

11k

×4

×4

82k

GND

25

17k

73k

90k

Meter drive circuit

(For tuning indicator)

AFC pin of W band.

During AM, it determines

time constant of AGC

AFC pin of J band.

During AM, it determines

time constant of AGC.

Detection output pin

Power amplifier input pin

Ripple filter

Power supply pin

Power GND

∗ The pin voltage of pin 6 during AM, it is the same pin voltage of pin 22 (23) during J BAND and is the same

pin voltage of pin 21 (22) during W BAND.