SMARTALPHA-433 rfsolutions.ltd, SMARTALPHA-433 Datasheet - Page 3

• Manufacturer Part Number: SMARTALPHA-433
• Description: Smartalpha Rf Transceiver
• Manufacturer: rfsolutions.ltd

DSSMARTALPHA-2e.doc
1.
Pin Descriptions
Host Data Rate Selection
DR2 (pin 13)
Number
7, 8, 14
12, 13
4, 6
Pin
10
11
15
16
1
2
3
5
9
0
0
1
1
Module Connections
Data Rate
reserved
Antenna
DR1 (pin12)
Name
RSSI
GND
RFU
RTS
CTS
Vcc
PD
Rx
Tx
©2009 REG No 277 4001, ENGLAND.
0
1
0
1
RSSI 2
GND 4
GND 6
RFU 3
ANT 5
Vcc 1
NC 7
NC 8
In / Out
S
Power
Power
Baud Rate
Type
Out
Out
Out
In
In
In
In
19,200
38,400
MART
-
-
4,800
9,600
Positive supply voltage connection. Decouple with 100n ceramic
capacitor to ground.
Pin is high when RSS is higher than the programmed threshold
Reserved for future use
Connect to 0 volts.
Nominal 50 ohm input/output impedance capacitively isolated
from the internal circuit.
Don’t connect
Power Down pin. Take low for low power standby mode.
Transmit data input from host controller.
Data input to the transmitter can be directly interfaced to CMOS
logic drive operating on the same supply voltage as the
transceiver.
Received data output to host controller (CMOS logic out)
representing true data as supplied to the transmitter.
Host Data Rate selection.
Logic ‘0’ is Request To Send.
Take low when the host is ready to send data to the module or is
ready to receive data from the module.
Logic ‘0’ is Clear To Send.
Taken high when the module is busy.
ALPHA RF T
Description
RANSCEIVER
Page 3
16 CTS
15 RTS
14 NC
13 DR2
12 DR1
11 Rx
10 Tx
9 PD