RF2958 RF Micro Devices, RF2958 Datasheet - Page 18

• Manufacturer Part Number: RF2958
• Description: 2.4GHz SPREAD-SPECTRUM TRANSCEIVER
• Manufacturer: RF Micro Devices

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11-280
-10.0
-2.0
-4.0
-6.0
-8.0
36.50
36.00
35.50
35.00
34.50
34.00
33.50
33.00
32.50
32.00
31.50
RF2958
30.0
25.0
20.0
15.0
10.0
8.0
6.0
4.0
2.0
0.0
-5.0
5.0
0.0
0.5
-12.0 -10.0 -8.0 -6.0 -4.0 -2.0
0.5
Modulator Magnitude Error and Image Suppression
0.7
0.7
Upconverter P1dB versus Analog TXVGC
Upconverter Gain versus Analog TXVGC
Upconverter Gain vs. TXVGC @ -30°C
Upconverter Gain vs. TXVGC @ 25°C
Upconverter Gain vs. TXVGC @ 70°C
0.9
0.9
Baseband Frequency (MHz)
1.1
1.1
1.3
1.3
TXVGC (V)
TXVGC (V)
0.0
1.5
Image Suprression vs. Frequency
Magnitude Error vs. Frequency
1.5
Upconverter Output P1dB vs. TXVGC
@ -30°C
Upconverter Output P1dB vs. TXVGC
@ 25°C
Upconverter Output P1dB vs. TXVGC
@ 70°C
2.0
1.7
1.7
4.0
1.9
1.9
6.0
8.0 10.0 12.0
2.1
2.1
2.3
2.3
0.10
0.05
0.00
-0.05
-0.10
-0.15
2.5
2.5
-10.0
-2.0
-4.0
-6.0
-8.0
30.0
25.0
20.0
15.0
10.0
8.0
6.0
4.0
2.0
0.0
-5.0
5.0
0.0
0.0
0.0
Upconverter Output P1dB vs. TXVGC @ -30°C
Upconverter Output P1dB vs. TXVGC @ 25°C
Upconverter Output P1dB vs. TXVGC @ 70°C
Upconverter P1dB versus Digital TXVGC
5.0
Upconverter Gain versus Digital TXVGC
5.0
10.0
10.0
TXVGC Value
TXVGC Value
15.0
15.0
Upconverter Gain vs. TXVGC @ -30°C
Upconverter Gain vs. TXVGC @ 25°C
Upconverter Gain vs. TXVGC @ 70°C
20.0
20.0
25.0
25.0
Rev A0 050209
30.0
30.0
35.0
35.0