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參數(shù)資料
| 型號(hào)： | RMPA0959 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 衰減器 |
| 英文描述： | CDMA and CDMA2000-1X PowerEdge Power Amplifier Module |
| 中文描述： | 824 MHz - 849 MHz RF/MICROWAVE NARROW BAND LOW POWER AMPLIFIER |
| 封裝： | 4 X 4 MM, 1.50 MM HEIGHT, ROHS COMPLIANT, LEADLESS PACKAGE-11 |
| 文件頁(yè)數(shù)： | 5/13頁(yè) |
| 文件大?。?/td> | 523K |
| 代理商： | RMPA0959 |
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2004 Fairchild Semiconductor Corporation
RMPA0959 Rev. D
R
Typical Characteristics
(Continued)
Efficiency Improvement Applications
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 CDMA modulation
with excellent margin. High-efficiency DC-DC converters
are now available to implement switched-voltage operation.
The following charts show measured performance of the
PA module in low-power mode (Vmode = +2.0V) at
+16dBm output power and over a range of supply voltages
from 3.4V nominal down to 1.2V. Power-added efficiency
is more than doubled from 9.5 percent to nearly 25 percent
(Vcc = 1.2V) while maintaining a typical ACPR1 of –52dBc
and ACPR2 of less than –61dBc.
Operation at even lower levels of Vcc supply voltage are
possible with a further restriction on the maximum RF
output power. The PA module can be biased at a supply
voltage of as low as 0.7V with an efficiency as high as 10-
12 percent at +8dBm output power. Excellent signal
linearity is still maintained even under this low supply
voltage condition.
RMPA0959 Cellular 4x4 PAM, Pout = 16dBm, IS95 mod.
Vcc = 3.4V, Vref = 2.85V, Vmode = 2.0V, Tc = 25C,
RMPA0959 Cellular 4x4 PAM
Frequency = 836.5MHz, Vcc = 3.4V, Vref = 2.85V
-80.0
-78.0
-76.0
-74.0
-72.0
-70.0
824
836.5
849
Frequency (MHz)
Pout (dBm)
A
0
50
100
150
200
250
300
350
400
450
500
0.0
4.0
8.0
12.0
16.0
20.0
24.0
28.0
I
Vmode = 0V
Vmode = 2.0V
RMPA0959
Vref = 2.85V, Pout = 16dBm, Vmode = 2.0V
-56.0
-54.0
-52.0
-50.0
-48.0
-46.0
-44.0
-42.0
-40.0
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
Vcc (V)
A
RMPA0959
Vref = 2.85V, Pout = 16dBm, Vmode = 2.0V
-80.0
-75.0
-70.0
-65.0
-60.0
-55.0
-50.0
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
Vcc (V)
A
RMPA0959
Vref = 2.85V, Pout = 16dBm, Vmode = 2.0V
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
22.0
24.0
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
Vcc (V)
P
RMPA0959
Vref = 2.85V, Pout = 16dBm, Vmode = 2.0V
20.0
22.0
24.0
26.0
28.0
30.0
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
Vcc (V)
G
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| RMPA0963 | Cellular CDMA, CDMA2000-1X and WCDMA Power Amplifier Module |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RMPA0963 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Cellular CDMA, CDMA2000-1X and WCDMA Power Amplifier Module |
| RMPA0965 | 功能描述:射頻放大器 CDMA-CDMA2000-1X Pwr Edge Amp Mod RoHS:否 制造商:Skyworks Solutions, Inc. 類型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點(diǎn):37.5 dBm 功率增益類型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測(cè)試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel |
| RMPA0966 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:WCDMA Band V Power Amplifier Module |
| RMPA0966_07 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:WCDMA Band V Power Amplifier Module |
| RMPA0967 | 功能描述:射頻放大器 CDMA2000-1X-WCDMA Pwr Edge Amp Mod RoHS:否 制造商:Skyworks Solutions, Inc. 類型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點(diǎn):37.5 dBm 功率增益類型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測(cè)試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel |
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