RF3867TR7 RFMD, RF3867TR7 Datasheet - Page 6

• Manufacturer Part Number: RF3867TR7
• Description: IC AMP LOW-NOISE DUAL-CH 20-QFN
• Manufacturer: RFMD

Specifications of RF3867TR7

• Current - Supply: 180mA
• Frequency: 700MHz ~ 3.8GHz
• Gain: 10dB
• Noise Figure: 0.8dB
• P1db: 21dBm
• 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

RF3867
6 of 10
700MHz to 1100MHz, 1500MHz to 2700MHz, and 3300MHz to 3800MHz
RF IN1
RF IN2
R2 and R3 are DNP for typical 90 mA per channel current draw. If R2 or R3 is added,
the channel I
to achieve higher linearity.
Note 1: For low band add a series 6.8 nH inductor on RF IN, and a shunt 15 nH inductor on RF OUT.
Note 2: The topology of L3, L4, C5, and C6 in the mid and high bands. They must be as shown in the table.
Component
C5, C6 (pF)
C2, C3 (pF)
L1, L2 (nH)
L4, L3 (nH)
R2, R3 (Ω)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
R1 (Ω)
L3
L4
Inductors should be placed as close as possible to the part.
DD
1
2
3
4
5
will increase. A 20 Ω R2 or R3 will raise the current of a channel
3300 MHz to 3800 MHz
20
Evaluation Board Schematic
C3
R3
C5
6
C6
R2
C2
High Band
100 pF
12 nH
DNP
DNP
1.5
19
7
0
18
8
L2
L1
1500 MHz to 2700 MHz
VDD1
VDD2
17
9
Mid Band
10 nF
10 pF
10 pF
10 nF
100 pF
4.7 nH
C9
C8
C4
C1
DNP
16
10
12
12
0
15
14
13
12
11
700 MHz to 1100 MHz
50 Ω μstrip
50 Ω μstrip
Low Band
See note 1
DNP
100
6.8
56
22
0
RF OUT1
RF OUT2
J4
J3
Rev A4 DS091119