Rfm12b, Recommended working range, Dc characteristic – Rainbow Electronics RFM12B User Manual
Page 3: Ac characteristic
RFM12B
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I
in
Input current except power
-25
25
mA
ESD
Human body model
1000
V
T
st
Storage
temperature
-55
125
℃
T
ld
Soldering
temperature(10s)
260
℃
Recommended working range
symbol parameter
minimum maximum Unit
V
dd
Positive
power
supply
2.2
3.8
V
T
op
Working
temperature
-40
85
℃
DC characteristic
symbol parameter
Remark
minimum
typical maximum Unit
I
dd_TX_0
Supply
current
(TX mode, P
out
= 0dBm)
315,433MHz band
868MHz band
915MHz band
15
16
17
17
18
19
mA
I
dd_TX_PMAX
Supply
current
(TX mode, P
out
= P
max
)
315,433MHz band
868MHz band
915MHz band
22
23
24
24
25
26
mA
I
dd_RX
Supply
current
(RX mode)
315,433MHz band
868MHz band
915MHz band
11
12
13
13
14
15
mA
I
x
Idle current
Crystal oscillator on
0.62
1.2
mA
I
pd
Sleep mode current
All blocks off
0.3
uA
I
lb
Low battery detection
0.5
uA
V
lb
Low battery detect
threshold
0.1V per step
2.2
3.7
V
V
lba
Low battery detection
accuracy
0
5
%
V
il
Low level input
0.3*V
dd
V
V
ih
High level input
0.7*V
dd
V
I
il
Leakage
current V
il
=0V -1
1
uA
I
ih
Leakage
current V
ih
=V
dd
, V
dd
=5.4V -1
1
uA
V
ol
Low level output
I
ol
=2mA
0.4
V
V
oh
High level output
I
oh
=-2mA V
dd
-0.4
V
AC characteristic
symbol parameter
remark
min
typical max Unit
f
ref
PLL frequency
9
10
11
MHz
f
LO
frequency
(10MHz crystal
used)
433 MHz band,2.5KHz step
868 MHz band,5KHz step
915 MHz band,7.5KHz step
430.24
860.48
900.72
439.7
5
879.5
1
929.2
7
MHz