ALPHA-RX433S RF Solutions, ALPHA-RX433S Datasheet - Page 9

• 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
bit
The 12-bit parameter of the Frequency Setting Command <f11- f0> has the value F. The value F should be in the range of
96 and 3903. When F is out of range, the previous value is kept. The synthesizer center frequency f
f
The constants C1 and C2 are determined by the selected band as:
Band
315
433
868
0
= 10 MHz * C1 * (C2 + F/4000)
To integrate the load capacitor internal can not only save cost, but also adjust reference frequency by
software
.
3
4
． ． ． ．
． ． ． ．
15
1
15
1
ms: select modulation polarity
m2..m0: select frequency deviation
x3..x0: select crystal load capacitor
C1
1
1
2
Power Management Command
Frequency Setting Command
Jul 09
a1 Crystal oscillator and synthesizer are enabled by Data transmit Command and disable by
Sleep command.
a0 Power amplifier is enabled by Data transmit Command and disable by Sleep Command.
ex Enable crystal oscillator
es Enable synthesizer
ea Enable power amplifier
eb Enable low battery detection funciton
et Enable wake-up timer
dc Disable output of CLK pin
14
0
14
1
C2
31
43
43
x3
0
0
0
0
……
1
1
m2
0
0
0
0
1
1
1
13
1
13
0
x2
0
0
0
0
1
1
m1
0
0
1
1
0
0
1
12
0
12
0
……
11
f11
x1
0
0
1
1
1
1
m0
0
1
0
1
0
1
0
11
0
ALPHA RF M
10
f10
10
0
x0
0
1
0
1
0
1
frequency deviation
30
60
90
120
150
180
210
©2009 RF Solutions Ltd.
9
0
9
f9
Load capacitor
[pF]
8.5
9.0
9.5
10.0
15.5
16.0
8
0
8
f8
7
a1
7
f7
[kHz]
6
a0
6
f6
ODULES
5
ex
5
f5
4
es
4
f4
3
ea
3
f3
2
eb
2
f2
Page 9
0
can be calculated as:
1
f1
1
et
0
dc
0
f0
POR
A7D0h
ALPHA-RX
POR
C000h
ALPHA-TX