Rainbow Electronics RFM01 - Manual (Page 4)

RFM01
Version: 1.2 Date: 10/17/2008
Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com
f
LO
frequency
(8MHZ crystal used)
315 MHz band,2.5KHz step
433 MHz band,2.5KHz step
868 MHz band,5KHz step
915 MHz band,7.5KHz step
248.19
344.19
688.38
720.57
255.80
351.80
703.61
743.41
MHz
f
LO
frequency
(12MHZ crystal used)
315 MHz band,2.5KHz step
433 MHz band,2.5KHz step
868 MHz band,5KHz step
915 MHz band,7.5KHz step
372.28
516.28
1032.5
1080.8
383.71
527.71
1055.4
1115.1
MHz
BW
Receiver bandwidth
1
2
3
4
5
6
60
120
180
240
300
360
67
134
200
270
350
400
75
150
225
300
375
450
kHz
t
lock
PLL lock time After 10MHz step hopping,
frequency error <10 kHz
20 us
T
st, p
PLL start time After crystal stabilized 250 us
BR Data rate With internal digital
demodulator
115.2 kbps
BRA Data rate With external RC filter 256 kbps
BW=134KHz,BR=1.2kbps,315MHz band -109 -100
BW=134KHz,BR=1.2kbps,433MHz band -109 -100
BW=134KHz,BR=1.2kbps,868MHz band -105 -98
P
min
sensitivity
BW=134KHz,BR=1.2kbps,915MHz band -105 -98
dBm
AFC
range
AFC working range δF
fsk
: received signal
modulation depth
0.8*δF
fsk
RS
A
RSSI accuracy ±5 dB
RS
R
RSSI range 46 dB
C
ARSSI
ARSSI filter 1 nF
RS
STEP
RSSI programmable
step
6 dB
RS
RESP
DRSSI response time RSSI output high after valid ,
C
ARRSI
=5nF
500 us
C
XL
Capacitor bank Programmable step with
0.5pF step, +/- 10%
8.5 16 pF
T
POR
PWR time V
dd
reach 90% 50 100 mS
T
PBT
Wakeup timer period Calibrated each 30s 0．96 1．08 mS
T
WAKE-UP
Programmable
wakeup time
1 5*10E11 mS
T
SX
Crystal start up time Crystal ESR < 100 Ohms 5 mS
C
IN,D
Load capacitance 2 pF
T
r,F
Output rising edge With 15PF load 10 ns