參數(shù)資料
型號: RMPA5255
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 衰減器
英文描述: 4.9-5.9 GHz WLAN Linear Power Amplifier Module
中文描述: 4900 MHz - 5900 MHz RF/MICROWAVE WIDE BAND MEDIUM POWER AMPLIFIER
封裝: 5 X 5 MM, 1.50 MM HEIGHT, LEAD FREE, LEADLESS PACKAGE-10
文件頁數(shù): 5/7頁
文件大小: 788K
代理商: RMPA5255
5
www.fairchildsemi.com
RMPA5255 Rev. E
R
Evaluation Board Bill of Materials
Evaluation Board Layout
Evaluation Board Turn-On Sequence
1
Recommended turn-on sequence:
1) Connect common ground terminal to the Ground (GND) pin on the board.
2) Connect voltmeter to VDET (P-Sense).
3) Apply positive supply voltage (3.3 V) to pin VCC (Collector voltage).
4) Apply positive bias voltage (2.9 V) to pin VPC (Power Control voltage).
5) At this point, you should expect to observe the following positive currents flowing into the pins:
Pin
Current
VCC
150 – 170 mA
VPC
21 – 31 mA
6) Apply input RF power to SMA connector pin RFIN. Current for pin VCC will vary depending on the input drive level.
7) Vary positive voltage VPC from +2.9 V to +0 V to shut down the amplifier or alter the power level. Shut down current flow
into the pins:
Pin
Current
VCC
<1 nA
Recommended turn-off sequence:
Use reverse order described in the turn-on sequence above.
Note:
1. Turn on sequence is not critical and it is not necessary to sequence power supplies in actual system level design.
Actual Board Size = 2.0" X 1.5"
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