RMPA5251 データシートの表示（PDF） - Fairchild Semiconductor
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RMPA5251 Datasheet PDF : 10 Pages
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RMPA5251 5.15 to 5.85 GHz Operation Eval Board BOM (High Band)
No. Ref Value Unit Qty Size Description
MFG
Part No.
Comments
1 C1,C2 10 µF 2 0805 10 µF Capacitor Murata
GRM21BR60J106K
Decoupling
Capacitor
2 C4 100 pF 1 0402 100 pF Capacitor Murata
GRM1885C1H101JA01D Detector
Capacitor
3 R1,R2 10K Ω 2 0402 10 KΩ Resistor
4 L1,L3 10 nH 2 0402 10 nH Inductor
IMS
Toko
RCI-0402-1002J
LLV1005FB10NJ
Detector Resistor
RF Choke
5 L2 15 nH 1 0402 15 nH Inductor Toko
LLV1005FB15NJ
RF Choke
6 B1
1
Fixture Board
Crown Circuits G657432
7 J1,J2
2
Jack End Launch Johnson
142-0701-841
SMA
Components
8 J3
11
Right Angle Single Digikey
Header
S1322-12-ND
9 A1
1
Packaged MMIC Fairchild
RMPA5251
Evaluation Board Layout
VL
*
C1
L2
C3 L3
R1
J1
L1
C2
J2
R2
C4
A1
J3
= component
Actual Board Size = 2.0" x 1.5"
Not Used
= Jumper/short connection
* VL is labeled P1 on Eval Board
Evaluation Board Operation
Recommended turn-on sequence:
1) Connect RF ports J1, J2 to RF test equipment.
2) Connect common ground terminal to the Ground (GND) pin on the board.
3) Connect logic control pin VL to positive supply.
4) Connect terminals VC1, VC2 and VC3 together and connect to positive supply (VC).
5) Connect terminals VM1, VM2 and VM3 together and connect to positive supply (VM).
6) Connect voltmeter to Detector Output, pin DT1.
7) Connect pin DT2 to ground.
8) Apply high voltage of +2.4V to logic control pin VL. (On)
9) Apply positive voltage of 3.3V to VC1, VC2 and VC3 (first, second and third stage collector).
10) Apply positive voltage of 3.3V to VM1, VM2 and VM3 (bias networks)2.
11) At this point, you should expect to observe the following positive currents flowing into the pins:
Pin
VL
VC (Total)
VM (Total)
Current
~150 µA
~184 mA
~16 mA
©2004 Fairchild Semiconductor Corporation
RMPA5251 Rev. D
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