ALPHA-RX433S RF Solutions, ALPHA-RX433S Datasheet - Page 10

• Manufacturer Part Number: ALPHA-RX433S
• Description: RECEIVER RF ALPHA 5.4V 433MHZ
• Manufacturer: RF Solutions

Specifications of ALPHA-RX433S

• Frequency: 433MHz
• Sensitivity: -100dBm
• Data Rate - Maximum: 115.2kbps
• Modulation Or Protocol: FM, FSK
• Current - Receiving: 11mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.2 V ~ 5.4 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Applications: -
• Memory Size: -

DSALPHA-4
bit
Apart from setting custom values, the standard bit rates from 2.4 to 115.2 kbps can be approximated with
minimal error.
The commands are read out with a different fixed bit rate:
Fsck = 10 MHz / 29 / 3 [~115.2 kHz]
Note:
PLL bandwidth should be set according the data rate. Please see the PLL Setting Command
bit
bit
bit
bit
bit
5
r7..r0: set data rate
BR=10000000/29/(R+1)
BR is data rate
6
p2..p0: set relative output power:
Pout=Pmax-P*3 [dBm]
Pmax is the max output power; it is related to the antenna impedance.
7
dwc Disable wake-up timer periodical calibration
ebs Enable TX bit synchronization function
t4..t0: Set threshold voltage of Low battery detector
Vlb=2.2+T*0.1 [V]
8
If crystal oscillator, synthesizer and power amplifier are auto-controlled, this command will close
power amplifier and synthesizer immediately, then stop crystal oscillator after S periods of CLK signal
9
The wake-up timer period is determined by:
For continual operation, bit ‘et’ must be cleared and set
10
This command indicate that the following data on SDI pin is to be transmitted, the transmission stops
if nSel return to hi.
11
7
1
7
1
15
1
． ． ． ．
15
1
． ． ． ．
． ． ． ．
． ． ． ．
． ． ． ．
15
1
15
1
． ． ． ．
． ． ． ．
Data Rate Command
Power Setting Command
Low Battery Detector and Tx bit Synchronization Command
Sleep Command
Wake-Up Timer Command
Jul 09
T
6
0
wake-up
14
1
14
1
6
1
14
1
14
1
5
1
Data Transmit Command
Status Register Read Command
13
1
= M * 2
13
0
5
0
13
0
13
0
4
1
12
r4
12
0
R
12
0
4
0
12
0
[ms]
3
0
11
r3
11
1
11
0
11
0
3
0
2
p2
10
r2
ALPHA RF M
10
0
10
1
10
0
2
1
1
p1
9
r1
©2009 RF Solutions Ltd.
0
p0
9
0
9
1
9
0
1
1
8
r0
8
0
POR
B0h
8
0
8
0
7
m7
0
0
7
s7
7
dwc
7
r7
6
m6
6
s6
6
0
6
r6
5
m5
ODULES
5
s5
5
ebs
5
r5
4
m4
4
s4
4
r4
4
t4
3
m3
3
s3
3
r3
3
t3
2
m2
2
s2
2
r2
2
t2
Page 10
1
s1
1
r1
1
m1
1
t1
0
r0
0
t0
0
s0
0
m0
POR
C800h
POR
C200h
ALPHA-RX
POR
C400h
ALPHA-TX
POR
E000h