ALPHA-TRX433S RF Solutions, ALPHA-TRX433S Datasheet - Page 11

• Manufacturer Part Number: ALPHA-TRX433S
• Description: TRANSCEIVER RF ALPHA 5.4V 433MHZ
• Manufacturer: RF Solutions

Specifications of ALPHA-TRX433S

• Frequency: 433MHz
• Data Rate - Maximum: 256kbps
• Modulation Or Protocol: FM
• Applications: Car Alarms, Remote Sensing, Wireless Security
• Power - Output: -21dbm
• Voltage - Supply: 2.2 V ~ 5.4 V
• Current - Receiving: 10mA
• Current - Transmitting: 25mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -45°C ~ 85°C
• Package / Case: Module
• Modulation Type: FSK
• Frequency Range: 430.24MHz To 439.75MHz
• Supply Voltage Range: 2.2V To 3.8V
• Supply Current: 21mA
• Svhc: No SVHC (15-Dec-2010)
• Interface Type: SIP
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Memory Size: -

DSALPHA-TRX-3
Transmitter Register Write Command
bit
Wake-Up Timer Command
bit
Low Duty-Cycle Command
bit
Low Battery Detector and Microcontroller Clock Divider Command
bit
15
1
15
1
15
1
15
1
This command is use to write a data byte to RF12 and then RF12 transmit it
The wake-up period is determined by:
For continual operation, bit ‘et’ must be cleared and set
d6..d0: Set duty cycle
D.C.= (D * 2 +1) / M *100%
En: Enable low duty cycle mode
CLK signal is derive form crystal oscillator and it can be applied to MCU clock in to save a second
crystal.
If not used, please set bit “dc” to disable CLK output
To integrate the load capacitor internal can not only save cost, but also adjust reference frequency
by software
v3..v0: Set threshold voltage of Low battery detector Vlb=2.2+V*0.1 [V]
T
d2..d0: select frequency of CLK pin
d2
0
0
0
0
1
1
1
1
wake-up
14
0
14
1
14
1
14
1
May09
13
1
13
1
13
0
13
0
= M * 2
d1
0
0
1
1
0
0
1
1
12
1
12
r4
12
0
12
0
d0
0
1
0
1
0
1
0
1
R
[ms]
11
1
11
r3
11
1
11
0
Clock frequency[MHz]
1
1.25
1.66
2
2.5
3.33
5
10
10
0
10
r2
10
0
10
0
ALPHA RF T
9
0
9
r1
9
0
9
0
©2009 RF Solutions Ltd.
8
0
8
r0
8
0
8
0
7
t7
7
m7
7
d6
7
d2
6
t6
6
m6
6
d5
6
d1
5
d4
5
t5
5
m5
RANSCEIVER
5
d0
4
d3
4
t4
4
m4
4
0
3
d2
3
v3
3
t3
3
m3
2
d1
2
v2
2
t2
2
m2
1
d0
Page 11
1
v1
1
t1
1
m1
0
en
0
v0
0
t0
0
m0
ALPHA-TRX433S
ALPHA-TRX915S
POR
C8OEh
POR
C000h
POR
B8AAh
POR
E196h