XE1203SKC868XE2 Semtech, XE1203SKC868XE2 Datasheet - Page 14

• 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

The main characteristic of this pre-filtering function is the ratio between the rise/fall time to the bit duration, t
The value of this ratio can be programmed between two pre-defined values in the RTParam_Stair configuration bit,
as shown in the Table 7.
When the pre-filtering function is enabled (RTParam_Filter set to “1”), only the following bit rates and frequency
deviations can be used:
© Semtech 2008
IN
IN
Staircase filtering
Datain or
data
No filtering
freq_synth
freq_synth
RTParam_Stair
FSParam_Dev
00101000
00110111
01010000
10100000
11001000
Figure 8: Modulation with and without pre-filtering
0
1
Table 7: t
rise
/t
14
bit
ratio
Frequency deviation
160 kHz
200 kHz
40 kHz
55 kHz
80 kHz
t
rise
10%
20%
/t
bit
XE1203F
www.semtech.com
rise
/t
bit
.