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G003B Datasheet(PDF) 3 Page - TriQuint Semiconductor

Part No. G003B
Description  InGaP HBT Gain Block
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Maker  TRIQUINT [TriQuint Semiconductor]
Homepage  http://www.triquint.com
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Specifications and information are subject to change without notice
WJ Communications, Inc
• Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com, www.TriQuint.com
Page 3 of 4
January 2008
ECG003
InGaP HBT Gain Block
Recommended Application Circuit
Recommended Component Values
Reference
Frequency (MHz)
Designator
50
500
900
1900
2200
2500
3500
L1
820 nH
220 nH
68 nH
27 nH
22 nH
18 nH
15 nH
C1, C2, C3
.018 µF
1000 pF
100 pF
68 pF
68 pF
56 pF
39 pF
1. The proper values for the components are dependent upon the intended frequency of operation.
2. The component values in the table below are contained on the evaluation board to achieve optimal broadband
performance.
3. R1 and R2 are shown in the circuit diagram to avoid potential instabilities. The configuration shown above assures
of unconditional stability with the use of the device. It is expected that linearity parameters (OIP3 and P1dB) to
degrade about only 0.5 dB, while overall gain will be about 2 dB less than the performance shown in page 1 and 2 of
this datasheet. Input and output return loss is expected to improve with the use of the I/O series resistances at 2 GHz.
Ref. Desig.
Value / Type
Size
L1
39 nH wirewound inductor
0603
C1, C2
56 pF chip capacitor
0603
C3
0.018
μF chip capacitor
0603
C4
Do Not Place
R1
18
Ω chip resistor
0603
R2
4.7
Ω chip resistor
0603
R3
16
Ω 1% tolerance
2010
Recommended Bias Resistor Values
Supply
Voltage
R3 value
Size
9 V
16 ohms
2010
10 V
25 ohms
2512
12 V
44 ohms
2512
The proper value for R3 is dependent upon the supply
voltage and allows for bias stability over temperature.
WJ recommends a minimum supply bias of +9 V. A
1% tolerance resistor is recommended.
ECG003B-PCB Performance Data
(WJ’s evaluation board uses the circuit shown above.)
Gain
10
12
14
16
18
20
01
23
4
Frequency (GHz)
Return Loss
-30
-20
-10
0
01
234
Frequency (GHz)
S11
S22
C1
Blocking
Capacitor
RF OUT
L1
RF Choke
C3
0.018 µF
R3
Bias
Resistor
RF IN
C4
Bypass
Capacitor
C2
Blocking
Capacitor
Vcc
Icc = 110 mA
ECG003B
R1
18
Ω
R2
4.7
Ω




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