SMX1-173-5 Datasheet, PDF (7/8 Pages) List of Unclassifed Manufacturers – Small Multi-channel VHF Transceiver

Application circuits
RF GND
RSSI (1a)
Vcc (2a)
TXD (3a)
AF (4a)
RXD (5a)
TXE (6a)
PGM (7a)
0V (1b)
S0 (2b)
S1 (3b)
S2 (4b)
RX
1kΩ
Test point
1kΩ
TX
1kΩ
ADC
Vdd
Vss
TXD
RXD
TX/RX
Parallel
Channel
Select
3V
regulator
4.2-16V
1
6
2
73
8
4
9
5
TXD
SGD
Figure 4: SMX1 interfaced to host microcontroller and serial port for configuration
5 - 16V
RF GND
RSSI (1a)
Vcc (2a)
TXD (3a)
AF (4a)
MOD RXD (5a)
MOD TXD (6a)
PGM (7a)
SMX1
0V (1b)
S0 (2b)
S1 (3b)
S2 (4b)
1200 bps
2400 bps
SETMOD
SW1
2K2
(for 5V)
PC serial port
1
6 _{2 RXD}
7 _{3 TXD}
8
4
9
5 SGD
Figure 5: SMX1 interfaced to PC serial port (0V / 5V RS232 level)
RF GND
RSSI (1a)
Vcc (2a)
TXD (3a)
AF (4a)
MOD RXD (5a)
MOD TXD (6a)
PGM (7a)
SMX1
0V (1b)
S0 (2b)
S1 (3b)
S2 (4b)
2K2
(for 5V)
16 (+5V)
MAX232
5K
5 - 16V
1200 bps
SW1
PC serial port
1
6 _{2 RXD}
7 _{3 TXD}
8
4
9
5 SGD
Figure 6: SMX1 interfaced to serial port (+10V / -10V RS232 level)
Radiometrix Ltd
SMX1 Data Sheet
page 7