RF5125 Datasheet, PDF (7/12 Pages) RF Micro Devices – 3V TO 5V, 2.4GHz TO 2.5GHz LINEAR POWER AMPLIFIER

RF5125
J1
RF IN
C1
1 nF
16
1₁
2
50 Ω μstrip
3
Evaluation Board Schematic
VCC
27 Ω
C6
1 μF
L1
7.5 nH
1
1
15
14
13
12
11
10
L2
6.8 nH
Coilcraft
TL
C11³
see note
C7
1 μF
P2
P2-1 1 PDETECT
2 GND
P2-3 3 VREG2
P2-4 4 VREG1
HDR_1x4
TL = 101 mils (50 Ω) from IC
TL = 115 mils (50 Ω) from IC
TL
C10²
see note
C12
10 pF
50 Ω μstrip
J2
RF OUT
1₄
9
5
6
7
8
5125400, r.-
C2
1 nF
C3
1 nF
C9
330 pF
P1-1
C8
Notes:
4.7 μF
1. Pins 1, 4, 13, and 15 may be left as No Connect.
R1
0Ω
R3*
R2¹
68 Ω
R3 may be used to connect the VREGS with a 0Ω resistor.
2. For VCC = 3.3 VDC operation, C10 is to be populated with a
2.2 pF capacitor, 101 mils from the IC. C11 not populated.
P3-1
3. For VCC = 5.0 VDC operation, C11 is to be populated with a
2.2 pF capacitor, 115 mils from the IC. C10 not populated.
VREG1 VREG2
V_CC (V_DC) C10 (pF) C11 (pF)
3.3
2.2
DNP
5.0
DNP
2.2
PDETECT
P1
1 VCC
2 GND
P3
1 VCC
P4
1 GND
Rev A23 DS070515
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
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