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SX1230
Integrated Transmitter IC
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
9.2. Power Output Flatness versus Temperature and Supply Voltage
The SX1230 reference design power output flatness as a function of voltage and temperature is shown below.
16.90
16.80
16.70
16.60
16.50
16.40
16.30
3.6 V, 25 C
3.3 V, 25 C
1.8 V, 25 C
3.6 V, 90 C
3.3 V, 90 C
1.8 V, 90 C
3.6 V, -45 C
3.3 V, -45 C
1.8 V, -45 C
862
863
864
865
866
867
868
869
870
871
Frequency (MHz)
Figure 25. Typical 17 dBm Output Power Flatness versus Supply Voltage and Temperature, Measured in the
868 MHz ISM Band
17.40
17.30
17.20
17.10
17.00
16.90
16.80
16.70
16.60
3.6 V, 25 C
3.3 V, 25 C
1.8 V, 25 C
3.6 V, 90 C
3.3 V, 90 C
1.8 V, 90 C
3.6 V, -45 C
3.3 V, -45 C
1.8 V, -45 C
900
905
910
915
920
925
930
Frequency (MHz)
Figure 26. Typical 17 dBm Output Power Flatness versus Supply Voltage and Temperature, Measured in the
915 MHz ISM band
SX1230, Revision 2 May 2009
?2008 Semtech Corp.
Page 37
www.semtech.com
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