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DP1283
2.2
SPECIFICATIONS
The table below gives the electrical specifications of the transceiver under the following conditions:
Tamb =25 o C; VDD = 3.3V, fc = 915 MHz, frequency deviation = 55 kHz, Rate: DR = 4.8 kbit/s pseudo random bit
sequence unless otherwise specified.
Symbol
FR
IDDSL
IDDST
IDDR
IDDT
Parameter
Synthesizer Frequency Range
Supply current in sleep mode
Supply current in standby mode
Supply current in receiver mode
Supply current in transmitter
Conditions
DP1283-C868
DP1283-C915
DP1283-C433
39MHz running
RFOP = 5dBm
Min
868
902
433
Typ
-
-
-
0.2
0.85
14
33
Max
870
928
435
1
1.1
17
40
Units
MHz
MHz
MHz
uA
mA
mA
mA
mode
RFOP = 15dBm
72
85
mA
RFS
RF Sensitivity
DR = 4.8kbps / Mode A
-113
-110
dBm
BER<0.1%
FDA
DR
Frequency Deviation
Bit rate
Programmable
Programmable
1
1.2
-
-
255
152.3
kHz
kbit/s
RFOP
RF output power (50 Ohm load)
Programmable
RFOP max
12
15
-
dBm
TS_TR
TS_RE
TS_OS
XTAL
VIH
VIL
VOH
VOL
Transmitter wake-up time
Receiver base-band wake up time
Quartz oscillator wake up time
Quartz oscillator frequency
Digital input level high
Digital input level low
Digital output level high
Digital output level low
From oscillator running
From oscillator running
Fundamental
Fundamental
In % VDD
In % VDD
In % VDD
In % VDD
-
-
-
75
-
75
-
150
0.5
0.3
39
-
-
-
-
250
0.8
0.5
-
25
-
25
us
ms
ms
MHz
%
%
%
%
(1)
RF consumption only. Microcontroller consumption is highly software dependant (down to 1.9 uA in time keeping
mode).
? Semtech 2005
5
www.semtech.com
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