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參數(shù)資料
| 型號(hào)： | RMPA2265 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 衰減器 |
| 英文描述： | Dual Band WCDMA Power Amplifier Module 1850 to 1910 MHz and 1920 to 1980 MHz |
| 中文描述： | 1850 MHz - 1910 MHz RF/MICROWAVE NARROW BAND LOW POWER AMPLIFIER |
| 封裝： | 3 X 3 MM, 1 MM HEIGHT, LEAD FREE, LCC-8 |
| 文件頁(yè)數(shù)： | 6/11頁(yè) |
| 文件大小： | 484K |
| 代理商： | RMPA2265 |
2004 Fairchild Semiconductor Corporation
RMPA2265 Rev.
E
R
Performance Data: 1850 to 1910 MHz
Efficiency Improvement Applications
RMPA2265 3x3 WCDMA PA at US-PCS Freq
Vcc=3.4V, Vref=2.85V, Vmode=0V, Pout=27.5dBm
33.0
23.0
24.0
25.0
26.0
27.0
28.0
29.0
30.0
31.0
32.0
1850
1880
1910
Frequency (MHz)
G
RMPA2265 3x3 WCDMA PA at US-PCS Freq
Vcc=3.4V, Vref=2.85V, Vmode=0V, Pout=27.5dBm
45.0
35.0
36.0
37.0
38.0
39.0
40.0
41.0
42.0
43.0
44.0
1850
1880
1910
Frequency (MHz)
P
RMPA2265 3x3 WCDMA PA at US-PCS Freq
Vcc=3.4V, Vref=2.85V, Vmode=0V, Pout=27.5dBm
-30.0
-50.0
-48.0
-46.0
-44.0
-42.0
-40.0
-38.0
-36.0
-34.0
-32.0
1850
1880
1910
Frequency (MHz)
A
RMPA2265 3x3 WCDMA PA at US-PCS Freq
Vcc=3.4V, Vref=2.85V, Vmode=0V, Pout=27.5dBm
-45.0
-65.0
-63.0
-61.0
-59.0
-57.0
-55.0
-53.0
-51.0
-49.0
-47.0
1850
1880
1910
Frequency (MHz)
A
In addition to high-power/low-power bias modes, the
efficiency of the PA module can be significantly increased
at backed-off RF power levels by dynamically varying the
supply voltage (Vcc) applied to the amplifier. Since mobile
handsets and power amplifiers frequently operate at 10–20
dB back-off, or more, from maximum rated linear power,
battery life is highly dependent on the DC power consumed
at antenna power levels in the range of 0 to +16dBm. The
reduced demand on transmitted RF power allows the PA
supply voltage to be reduced for improved efficiency, while
still meeting linearity requirements for WCDMA modulation
with excellent margin. High-efficiency DC-DC converters
are now available to implement switched-voltage operation.
With the PA module in low-power mode (Vmode = 2.0V) at
+16dBm output power and supply voltages reduced from
3.4V nominal down to 1.2V, power-added efficiency is more
than doubled from 9 percent to 25 percent (Vcc = 1.2V)
while maintaining a typical ACLR1 of -40dBc and ACLR2 of
less than -54 dBc. Operation at even lower levels of Vcc
supply voltage are possible with a further restriction on the
maximum RF output power.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| RMPA2266 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Fairchild Semiconductor Corporation 功能描述: |
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| RMPA2450 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:2.4-2.5 GHz GaAs MMIC Power Amplifier |
| RMPA2451 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| RMPA2451-TB | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:2.4?2.5 GHz GaAs MMIC Power Amplifier |
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