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RMPA5252 Datasheet(Fiches technique) 6 Page - Fairchild Semiconductor

Numéro de pièce RMPA5252
Description  4.9-5.9 GHz InGaP HBT WLAN Linear Power Amplifier
Télécharger  7 Pages
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Fabricant  FAIRCHILD [Fairchild Semiconductor]
Site Internet  http://www.fairchildsemi.com
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www.fairchildsemi.com
RMPA5252 Rev. C
Evaluation Board Turn-On Sequence1
Recommended turn-on sequence:
1) Connect common ground terminal to the Ground (GND) pin
on the board.
2) Connect voltmeter to DT1 pin (Detector Voltage).
3) Connect VC1, VC2, VC3, VC4 (Collector voltages) together
using jumper cables. Apply a single positive supply voltage
(3.3V) to pin VC4.
4) Connect VM12 and VM34 (Power Control voltage) together
using a jumper cable. Apply a single positive supply voltage
(2.4V) to pin VM12.
5) At this point, you should expect to observe the following posi-
tive currents flowing into the pins::
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 VM12, VM34 from +2.4 V to +0 V to shut
down the amplifier or alter the power level. Shut down current
flow into the pins:
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
Pin
Current
VCC (total)
180 mA
VM12 and VM34
28 mA
Pin
Current
VCC (total)
<1 nA




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