1-14 (No.RA077<Rev.001>)
2.6
TERMINAL FUNCTION
2.6.1 TX-RX unit (XC1-295K-01, XC1-296K-01)
D200-203 VARIABLE
CAPACITANCE
DIODE
RF BPF control [RF BPF CTL]
D300
DIODE
LED indicator [IND]
D303
DIODE
DC switch [DC SW]
D304-307 VARISTOR
Surge protection [SURGE P]
D400
DIODE
Reverse current protection
D401
DIODE
DC switch [DC SW]
D402
DIODE
38M control [38 CTL]
D600, 601 DIODE
MIC AGC
D602
DIODE
VOX
D603
DIODE
VOX
Pin
No.
Name I/O
Function
CN300
1
VOL
I Volume level input
2
GND
- GND
3
SB
I Switched B input
4
SB
I Switched B input
5
+B
O Power output after passing through the fuse
6
+B
O Power output after passing through the fuse
7
32M
O DC 3.2V output
8
EN2
I Selector input
9
EN4
I Selector input
10
GND
- GND
11
EN3
I Selector input
12
EN1
I Selector input
Ref. No.
Part Name
Use / Function