ECG005B 데이터 시트보기 (PDF) - Unspecified
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ECG005B Datasheet PDF : 6 Pages
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ECG005
InGaP HBT Gain Block
The Communications Edge TM
Product Information
Recommended Application Circuit
Vcc
Icc = 65 mA
RF IN
C1
Blocking
Capacitor
R4
Bias
Resistor
C4
Bypass
Capacitor
C3
0.018 µF
L1
RF Choke
ECG005
RF OUT
C2
Blocking
Capacitor
ECG005B-PCB
ECG005C-PCB
Reference
Designator
L1
C1, C2, C4
50
820 nH
.018 µF
Recommended Component Values
Frequency (MHz)
500
900 1900 2200
220 nH 68 nH 27 nH 22 nH
1000 pF 100 pF 68 pF 68 pF
2500
18 nH
56 pF
3500
15 nH
39 pF
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 0603
C1, C2
56 pF chip capacitor
0603
C3
0.018 µF chip capacitor
0603
C4
Do Not Place
R4
18 Ω 1% tolerance
0805
Recommended Bias Resistor Values
Supply
Voltage
R1 value
Size
6V
18.5 ohms
0805
7V
33.8 ohms
1210
8V
49 ohms
1210
9V
65 ohms
2010
10 V
80 ohms
2010
12 V
111 ohms
2512
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 +6 V. A
1% tolerance resistor is recommended.
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
August 2004
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