NJM2552V View Datasheet(PDF) - Japan Radio Corporation
Part Name
Description
Manufacturer
NJM2552V Datasheet PDF : 21 Pages
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NJM2552
Pin No. SYMBOL
14 AM AF OUT
EQUIVARENT CIRCUIT
V+
14
100u
VOLTAGE
FUNCTION
AM Demodulated Signal Output
An external RC filter may be
connected to reduce undesired
signal.
1.46V
GND
15
AM SW
50k
15
GND
V+
2k 2k 2k 2k
16
RSSI OUT
16
55k
GND
V+
2k
17
RF AGC
OUT
17
GND
120k
AM Section ON /OFF Switch
Both of AM and FM section are in
action during AM SW=HIGH.
When AM SW=LOW, AM section
keeps a state of not working.
--
0.17V
Received Signal Strength
Indicator Output
Pin 16 outputs DC level
proportional to the log of input
signal level to pin7.
Output of RF AGC circuit
Pin 17 outputs DC voltage to
control the gain of external RF
amplifier.
0.08V
Ver.2007-10-24
-9-
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