RF25A 查看數據表（PDF） - Conexant Systems
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产品描述 (功能)
比赛名单
RF25A Datasheet PDF : 17 Pages
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Rx ASIC
RF25A
17
15
13
11
9
7
5
2.6
2.8
3
3.2
3.4
Vcc
-30C
25C
80C
Figure 9. CDMA Mixer Gain
(RF Frequency = 881.52 MHz, LO Frequency = 966.90 MHz,
IF Frequency = 85.38 MHz)
10
9
8
7
6
5
2.6
2.8
3
3.2
3.4
Vcc
-30C
25C
80C
Figure 10. CDMA Mixer Noise Figure
(RF Frequency = 881.52 MHz, LO Frequency = 966.90 MHz,
IF Frequency = 85.38 MHz)
8
7
6
5
4
3
2
1
0
2.6
2.8
3
3.2
3.4
Vcc
-30C
25C
80C
Figure 11. CDMA Mixer IIP3
(RF Frequency = 881.52 MHz, LO Frequency = 966.90 MHz,
IF Frequency = 85.38 MHz)
80
60
40
20
0
-20
-40
-60
0
1
2
Vctrl [V]
2.7V
3.0V
3.3V
3
Figure 13. CDMA VGA + I/Q Over Supply
(IF Frequency = 85.38 MHz)
60
40
20
0
-20
-40
-60
0
1
2
Vctrl [V]
-30C
25C
80C
3
Figure 12. CMDA VGA + I/Q Gain vs. Temperature
(IF Frequency = 85.38 MHz)
65
64
63
62
61
60
59
58
57
56
55
2.6
2.8
3
3.2
3.4
Vcc
-30C
25C
80C
Figure 14. VGA + I/Q Gain in AMPS Mode
(Vcontrol = 2.5 V, Frequency = 85.38 MHz)
101110A
Conexant – Preliminary
11
August 4, 2000
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