Pin
No.
Symbol
I/O
15 LPF_SW O
Equivalent circuit
124
15
124
17
CXA2525AM/AN
Description
Transistor switch output
which sets the LPF cut-off
frequency of RF amplifier.
OFF when Pin 19 is
connected to VCC, ON when
it is connected to GND.
16 BPF_SW O
124
16
VC
18 VCC
124
19 MODE
I
19
50k
50k
30k
Transistor switch output
which sets the RF amplifier
BPF boost.
OFF when Pin 19 is
connected to VCC, ON when
it is connected to GND.
VCC.
Multiple-speed mode
switching input.
VCC : High multiple-speed
mode
GND: Low multiple-speed
mode
20 APC_ON I
20
100k
APC amplifier ON/OFF
switching.
OFF when connecting to VCC;
ON when connecting to GND.
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