The Communications Edge TM
ECG001
InGaP HBT Gain Block
Product Information
Recommended Application Circuit
Vcc
Icc = 30 mA
R4
Bias
Resistor
C4
Bypass
Capacitor
C3
0.018 µF
L1
RF Choke
RF IN
RF OUT
ECG001
C2
C1
Blocking
Capacitor
Blocking
Capacitor
ECG001B-PCB
ECG001F-PCB
Recommended Component Values
Recommended Bias Resistor Values
Reference
Designator
L1
Frequency (MHz)
Supply
Voltage
5 V
6 V
8 V
9 V
10 V
12 V
R1 value
Size
50
820 nH
.018 µF
500
220 nH
1000 pF
900
68 nH
100 pF
1900
27 nH
68 pF
2200
22 nH
68 pF
2500
18 nH
56 pF
3500
15 nH
39 pF
53.3 ohms
86.7 ohms
153 ohms
187 ohms
220 ohms
287 ohms
0805
0805
1210
1210
2010
2010
C1, C2, C4
1. The proper values for the components are dependent upon the intended frequency of operation.
2. The following values are contained on the evaluation board to achieve optimal broadband performance:
Ref. Desig.
Value / Type
Size
L1
39 nH wirewound inductor
56 pF chip capacitor
0.018 μF chip capacitor
Do Not Place
0603
0603
0603
C1, C2
C3
The proper value for R1 is dependent upon the supply
voltage and allows for bias stability over temperature.
WJ recommends a minimum supply bias of +5 V.
1% tolerance resistor is recommended.
A
C4
R4
0805
51Ω 1% tolerance
Specifications and information are subject to change without notice
Page 3 of 6 April 2006
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