ALPHA-TRX433S
ALPHA-TRX915S
ALPHA RF TRANSCEIVER
AC characteristic(Transmitter)
symbol parameter
remark
min
3
typical max Unit
433MHz band
915MHz band
Selectable in 3 dB
steps
In low bands
In high bands
5
0
-2
Pmax-21
Pout
Co
Typical output power
Pmax dbm
Output capacitance
(set by the automatic antenna
tuning circuit)
2
2.1
2.6
2.7
3.2
3.3
pf
Qo
Quality factor of the output
capacitance
Output phase noise
In low bands
In high bands
100 kHz from carrier
1 MHz from carrier
13
8
15
10
17
12
-75
-85
256
240
Lout
dbc/HZ
BR
dffsk
FSK bit rate
FSK frequency deviation
kbps
kHZ
Programmable in 15
kHz steps
15
AC characteristic(Turn-on/Turnaround timings)
remark
symbol
Tst
parameter
Crystal oscillator startup Crystal ESR < 100
time
min typical max Unit
5
ms
us
us
Ttx_rx_XTAL_ON Transmitter - Receiver
turnover time
Synthesizer off, crystal oscillator
on
450
350
Trx_tx_XTAL_ON Receiver - Transmitter
turnover time
Synthesizer off, crystal oscillator
on
Ttx_rx_SYNT_ON Transmitter - Receiver
turnover time
Trx_tx_SYNT_ON Receiver - Transmitter
turnover time
Synthesizer on, crystal oscillator
on
Synthesizer on, crystal oscillator
on
425
300
us
us
pf
Cxl
Crystal load capacitance Programmable in 0.5 pF steps,
tolerance+/- 10%
8.5
16
tPOR
tPBt
Internal POR timeout
After Vdd has reached 90% of
final value
Calibrated every 30 seconds
100 ms
1.05 ms
Wake-up timer clock
period
0.96
Cin, D
tr, f
Digital input apacitance
Digital output rise/fall
time
2
10
pf
ns
15pF pure capacitive load
R F Solutions Ltd.,
Unit 21, Cliffe Industrial Estate,
Lewes, E. Sussex. BN8 6JL. England.
Email : sales@rfsolutions.co.uk
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.
Page 5
RFSOLUTIONS [ RFSOLUTIONS.LTD ]
