XE1203F
Symbol
Description
Conditions
Min
Typ
Max
Unit
IIP3
Input intercept point
f 1 = f LO + 1 MHz
f 2 = f LO + 1.945 MHz
Mode A (*1)
Mode B (*1)
-36
-21
-33
-18
-
-
dBm
dBm
BBW
Base band filter bandwidth DSB
Programmable (*2)
-
200
-
kHz
-
600
-
kHz
ACR
Adjacent channel rejection
funw = f LO + 650 kHz
45
48
-
dBc
Pw= - 108dBm, mode A (*1)
BR
Bit rate
Programmable
1.2
152.3
kbit/s
RFOP
RF output power
Programmable
RFOP1
-3
0
-
dBm
RFOP2
RFOP3
RFOP4
+2
+7
+12
+5
+10
+15
-
-
-
dBm
dBm
dBm
FR
TS_TR
TS_RE
TS_RSSI
Synthesizer frequency range
Transmitter wake-up time
Receiver Baseband wake-up time
RSSI wake-up time
Programmable
Each range with its own
external components
From oscillator enabled
From oscillator enabled
From receiver enabled
433
868
902
-
-
-
-
-
-
150
0.5
-
435
870
928
250
0.8
1
MHz
MHz
MHz
us
ms
ms
TS_RSSIM
RSSI measurement time
0.5
ms
TS_OS
Crystal oscillator wake-up time
Fundamental
-
0.3
0.5
ms
3 overtone
rd
-
2.5
ms
TS_FEI
FEI wake-up time
-
-
2/BR
ms
TS_SYNC_AQ
Time for synchronization of the
Input power of –106 dBm
-
5
-
ms
Barker decoder
Data rate = 1154 bits/s
Chip rate = 12.7 kcps
From Rx enabled
XTAL
FSTEP
Crystal oscillator frequency
Frequency synthesizer step
Fundamental or 3 rd overtone
Exact step is XTAL / 77 824
-
-
39
500
-
-
MHz
Hz
VTHR
RSSI equivalent input thresholds
Mode A (*1)
Low range:VTHR1
VTHR2
VTHR3
High range:VTHR1
VTHR2
VTHR3
-
-
-
-
-
-
-100
-95
-90
-85
-80
-75
-
-
-
-
-
-
dBm
dBm
dBm
dBm
dBm
dBm
SPR
Spurious emissions in Rx mode
(*4)
-
-65
-
dBm
SCK
Serial Clock frequency
1
MHz
VIH
VIL
VOH
VOL
Digital input level high (*3)
Digital input level low (*3)
Digital output level high
Digital output level low
% VDD
% VDD
% VDD
% VDD
75
-
75
-
-
-
-
-
-
25
-
25
%
%
%
%
Table 3: Electrical Specifications
Notes:
(*1)
(*2)
(*3)
(*4)
Mode A: High sensitivity mode; Mode B: High Linearity mode. As defined in Paragraph 4.1.1.
An intermediate bandwidth of 300 kHz can also be selected by using additional settings described in section 5.2.8.
Throughout this document, digital signal levels are named “high” or “1”, and “low” or “0”.
SPR strongly depends on the design of the application board and the choice of the external components.
Values down to -70 dBm can be achieved with careful design.
? Semtech 2008
6
www.semtech.com
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