XE1202A データシートの表示（PDF） - Semtech Corporation
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XE1202A Datasheet PDF : 32 Pages
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XE1202A TrueRF™
Symbol
TS_FE
FXTAL
FSTEP
VTHR
FERR
SPR
VIH
VIL
VOH
VOL
Description
Conditions
Min
FEI
wake-up
time Receiver enabled
(RTParam_Fsel = 1)
FEI counting duration
RTParam_Fsel = 1
-
-
RTParam_Fsel = 0
(RTParam_Fsel = 0)
Crystal oscillator frequency
-
Frequency synthesizer step
Exact step is XTAL / -
77824
Equivalent
thresholds
RSSI
input A-mode,low range:VTHR1
-
VTHR2
-
VTHR3
-
A-mode,high range:VTHR1
VTHR2
-
-
VTHR3
-
FEI error threshold
Pw=-100 dBm, A-mode
-
RTParam_Fsel = 1
Spurious emission in receiver (1)
-
mode
Digital input level high
% VDD
75
Digital input level low
% VDD
-
Digital output level high
% VDD
75
Digital output level low
% VDD
-
Table 4: Electrical Specifications
Typ
-
-
39
500
-105
-100
-95
-90
-85
-80
0.5
-65
-
-
-
-
Max Unit
20/BR
4/BR
ms
ms
-
MHz
-
Hz
-
-
-
-
-
-
-
-
-
25
-
25
dBm
dBm
dBm
dBm
dBm
dBm
-
dBm
%
%
%
%
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 2006
8
www.semtech.com
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