CXA1691M Просмотр технического описания (PDF) - Tiger Electronic
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CXA1691M Datasheet PDF : 10 Pages
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PIN CONFIGURATIONS
Pin Symbol
Description
Voltage (V)
Vcc=3V Vcc=6V
FM AM FM AM
FM and AM bands
selection switch
15
BAND
SELECT
pin. During GND
it becomes AM
0.84
0
0.88
0
and during open
it becomes FM
16
AM IF
IN
Input pin of AM
IF
0
0
0
0
CXA1691M
Equivalent circuit
Vcc
15
16
2K
GND
17
17
FM IF
IN
Input pin of FM
IF
1.3 0 1.3 0
360
18 NC
0000
19 METER
Meter drive
circuit (For
tuning indicator)
1.6 1.6 4.5 4.5
20 GND
0000
AFC pin of W band.
21 AFC/AGC
During AM, it
determines time
1.25 1.49 1.25 1.49
constant of AGC
AFC pin of J
22
AFC/AGC
band. During AM,
it determines time
1.25
1.25 1.25 1.25
constant of AGC
23 DET OUT
Detection output
pin
1.25
1.0 1.25 1.0
GND
1.25V
19
*3
N
GND
22
33K 39K
23
21
GND
4/10
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