ALPHA-TRX433S Datasheet, PDF (5/14 Pages) rfsolutions.ltd – The Alpha Modules are extremely cost effective but high performance radio modules.

ALPHA RF TRANSCEIVER
ALPHA-TRX433S
ALPHA-TRX915S
AC characteristic(Transmitter)
symbol parameter
P_out
Typical output power
C_o
Output capacitance
(set by the automatic antenna
tuning circuit)
Q_o
Quality factor of the output
capacitance
L_out
Output phase noise
BR
FSK bit rate
df_fsk
FSK frequency deviation
remark
433MHz band
915MHz band
Selectable in 3 dB
steps
In low bands
In high bands
In low bands
In high bands
100 kHz from carrier
1 MHz from carrier
Programmable in 15
kHz steps
min
3
-2
P_max-21
typical
5
0
max
P_max
Unit
dbm
2
2.6
3.2 pf
2.1
2.7
3.3
13
15
17
8
10
12
-75 dbc/HZ
-85
256 kbps
15
240 kHZ
AC characteristic(Turn-on/Turnaround timings)
symbol
T_st
T_{tx_rx_XTAL_ON}
T_{rx_tx_XTAL_ON}
parameter
Crystal oscillator startup
time
Transmitter - Receiver
turnover time
Receiver - Transmitter
turnover time
remark
min
Crystal ESR < 100
Synthesizer off, crystal oscillator
on
Synthesizer off, crystal oscillator
on
typical max Unit
5
ms
450
us
350
us
T_{tx_rx_SYNT_ON} Transmitter - Receiver Synthesizer on, crystal oscillator
425
turnover time
on
T_{rx_tx_SYNT_ON} Receiver - Transmitter Synthesizer on, crystal oscillator
300
turnover time
on
C_xl
Crystal load capacitance Programmable in 0.5 pF steps, 8.5
tolerance+/- 10%
t_POR
Internal POR timeout
After V_dd has reached 90% of
final value
t_PBt
Wake-up timer clock
Calibrated every 30 seconds
0.96
period
C_{in, D}
t_{r, f}
Digital input apacitance
Digital output rise/fall
time
15pF pure capacitive load
us
us
16 pf
100 ms
1.05 ms
2
pf
10 ns
R F Solutions Ltd.,
Unit 21, Cliffe Industrial Estate,
Lewes, E. Sussex. BN8 6JL. England.
Email : [e-mail] http://www.rfsolutions.co.uk
Information contained in this document is believed to be accurate, however no representation or warranty is given and no liability is assumed by R.F. Solutions Ltd. with respect to the accuracy of
such information. Use of products as critical components in life support systems is not authorised except with express written approval from R.F. Solutions Ltd.
DSALPHA-TRX-6 Feb ‘11
©2009 RF Solutions Ltd.
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