XE1203SKC868XE2 Semtech, XE1203SKC868XE2 Datasheet - Page 28

• Manufacturer Part Number: XE1203SKC868XE2
• Description: KIT STARTER FOR XE1203 868MHZ
• Manufacturer: Semtech
• Series: TrueRF™r
• Type: Transceiver, ISMr

Specifications of XE1203SKC868XE2

• Frequency: 868MHz
• For Use With/related Products: XE1203 (868MHz)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

5.2.8
5.3
5.3.1
Some settings in this 9-byte register can be used to have access to additional configurations of the circuit. These
settings are described in the Table 18 below:
The XE1203F has four main operating modes illustrated in Table 19 below.
These modes are defined by the content of the SWParam_mode_1 parameter when configuration set #1 is
selected, or by the content of the SWParam_mode_2 parameter when configuration set #2 is selected. See also
Section 5.2.1.
The XE1203F circuit can be switched between any configuration by using the 3 wire interface (ConfigSwitch) or by
using the pad SWITCH. This section describes the switching sequence of the chip. Figure 18 shows the transition
sequence from sleep mode to receiver mode via stand by mode.
© Semtech 2008
Mode
Sleep mode
Standby mode
Receiver mode
Transmitter mode
OPERATING MODES
TParam_HPF
TParam_BW
Test Registers and additional settings
Standard power up sequence for the receiver and transmitter
Name
SWParam_mode_2(1:0)
SWParam_mode1(1:0)
Bits
1-0
3
0 0
0 0
1 0
1 1
Table 18: Test registers and additional settings
Table 19: XE1203F Operating Modes
Byte Address
10111
10111
Description
-
Quartz oscillator enabled
Quartz oscillator, Frequency synthesizer, Receiver enabled
Quartz oscillator, Frequency synthesizer, Transmitter enabled
28
Description
Baseband filter bandwidth (DSB):
SSB cut-off frequency of the HPF stage
0 -> default values defined by
RTParam_BW (200 and 600 kHz)
1 -> 300kHz
(for cancellation of DC and low-frequency
offsets in the baseband circuit):
00 -> 4.3 kHz
01 -> 8.7 kHz
10 -> 17.3 kHz
11 -> 34.6 kHz
XE1203F
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