XE1205SKC868XE1 Semtech, XE1205SKC868XE1 Datasheet - Page 17

• Manufacturer Part Number: XE1205SKC868XE1
• Description: KIT STARTER FOR XE1205 868MHZ
• Manufacturer: Semtech
• Series: TrueRF™r
• Type: Transceiver, ISMr

Specifications of XE1205SKC868XE1

• Frequency: 868MHz
• For Use With/related Products: XE1205 (868MHz)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

5.2.5.2
In buffered mode the bit synchronizer is automatically enabled (DCLK is not externally available).
5.2.5.3
In buffered mode the pattern recognition block is automatically enabled. The PATTERN signal m
IR
5.2.5.4
In buffered mode the Received Signal Strength Indica
m
mode.
5.2.5.5
I
5.2.3.5 for more details.
5.2.6
T
re
reduce
Activating this option is advised for bit rates and frequency deviations not higher than 4.8 kbit/s and 5 kHz and if the LO
frequency of the receiver is well controlled, for instance by means of a very accurate crystal or the activation of an AFC.
T
bandwidths.
Table 9 below gives the
It can be
deviations.
© Semtech 2008
n buffe
he lowest bandwidth for the base
he table below gives the sensitivity and the adjacent channel rejection for BR = 4.8 kbit/s and Δf = 5 kHz for different
ode, however, RSSI_irq may be mapped to IRQ_1 (please refer to section 5.2.2) instead of to IRQ_0 in continuous
gister is 10 kHz. However, as described in section 7.2.8, additional register settings allow this bandwidth to be further
Q_0. Please refer to section 5.2.2 for further details.
Bandwidth
Bandwidth
d.
SSB
SSB
red mode the Frequency Error Indication operates the same way as in continuous mode. Please refer to section
10 kHz
10 kHz
9 kHz
8 kHz
7 kHz
9 kHz
8 kHz
7 kHz
This option allows the user to improve the se
seen from table
Additional narrowband filter bandwidths
Bit synchronizer in buffered mode
Pattern recognition block in buffere
RSSI in buffered mode
Frequency Error Indicator in buffered mode – FEI
TParam_Low _BW
TParam_Low _BW
sensitivity and the adjacent channel rejection for BR = 1.2 kbit/s and f = 2 kHz.
Table 8: Performances of the recei
Table 9: Performances of the r
9 that this option also allows the sensitivity to be improved for very low
0
1
1
1
0
1
1
1
-band filter which can be selected by changing only a 2-bit word in the configuration
TParam_Code_BW(8:0)
TParam_Code_BW(8:0)
d mode
eceiver
139
160
185
X
lectivity of the receiver for very narrow-band applications.
tion operates the same way as in continuous mode. In buffered
ver fo
139
160
185
X
for very narrow
17
r very narro
(BER=0.1%)
Sensitivity
w bandwidths
-115.5 dBm
-117.5 dBm
-119.5 dBm
(BER=0.1%)
Sensitivity
-118 dBm
-119 dBm
-116 dBm
-116 dBm
-115 dBm
RFS
bandwidth
RFS
s and 1.2 kbit/s
and 4.8 kbit/s
Adjacent Channel Rejection
Adjacent Channel Rejection
(25 kHz offset sing
(25 kHz offset single tone)
Δ
ACR
ACR
bit rates
18 dBc
23 dBc
28 dBc
33 dBc
20 dBc
25 dBc
30 dBc
35 dBc
ay be mapped to pin
XE1205
le tone)
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and frequency