RF3865TR7 RFMD, RF3865TR7 Datasheet - Page 5

• Manufacturer Part Number: RF3865TR7
• Description: IC AMP LOW-NOISE 2-STAGE 20-QFN
• Manufacturer: RFMD

Specifications of RF3865TR7

• Current - Supply: 170mA
• Frequency: 700MHz ~ 3.8GHz
• Gain: 20dB
• Noise Figure: 1.1dB
• P1db: 22dBm
• Package / Case: 20-QFN
• Rf Type: Cellular, CDMA, PCS, DCS, UMTS, WLAN, 802.16/WiMax
• Test Frequency: 3.3GHz ~3.8GHz
• Voltage - Supply: 2.5V ~ 6V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

R3 is DNP for standard 180mA current draw. If R3 is added, the I
higher linearity.
DS100113
RF IN
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
R2
L3
Evaluation Board Schematic
C5
C7
1
2
3
4
5
Components
R2 (ohm)
R3 (ohm)
R5 (ohm)
10 nF
20
6
C3 (pF)
C4 (pF)
C5 (pF)
C6 (pF)
C7 (pF)
C8 (pF)
L1 (nH)
L2 (nH)
L3 (nH)
L4 (nH)
C1
C3
L1
VDD
19
7
700-1100 MHz
DD
0 Ω
10 pF
R1
18
R5
DNP
DNP
DNP
DNP
DNP
100
8
10
10
10
12
18
0
will increase. A 20Ω R3 will raise the current to achieve
VDD
17
9
1.8-3.8 GHz
L2
C8
10 nF
C2
C4
15 pF
DNP
DNP
DNP
100
0.5
8.2
4.7
4.7
18
18
10
16
10
0
15
14
13
12
11
L4
R3
C6
RF OUT
RF3865
5 of 10