CXA1691BM/BS
Voltage (V)
No.
Symbol
VCC=3 V VCC=6 V
FM AM FM AM
Equivalent circuit
Description
19
×3
1.25V
Meter drive circuit
19 (20) METER
1.6 1.6 4.5 4.5
(For tuning indicator)
N
GND
20 (21) GND
0
0
0
0
AFC pin of W band.
21 (22) AFC/AGC
1.25 1.49 1.25 1.49
During AM, it determines
time constant of AGC
AFC pin of J band.
22
33k 39k
21
22 (23) AFC/AGC
23 (24) DET OUT
1.25 1.25 1.25 1.25
1.25 1.0 1.25 1.0
During AM, it determines
time constant of AGC.
23
GND
Detection output pin
11k
24
×4 ×4
24 (25) AF IN
0
0
0
0
Power amplifier input pin
82k
GND
VCC
17k
RIPPLE
25 (26)
25
2.71 2.71 5.4 5.4
3.0 3.0 6.0 6.0
Ripple filter
73k
90k
FILTER
26 (27) VCC
Power supply pin
Power GND
28
GND
0
0
0
0
(29, 30)
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.
—5—
SONY [ SONY CORPORATION ]
