ECG055B WJ Communications, Inc., ECG055B Datasheet - Page 3

• Manufacturer Part Number: ECG055B
• Description: Ingap Hbt Gain Block
• Manufacturer: WJ Communications, Inc.

WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: [phone] • e-mail: [e-mail] • Web site: www.wj.com, www.TriQuint.com
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:
C1, C2, C4
Designator
Reference
L1
S-Parameters (V
Freq (MHz)
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
500
ECG055B
InGaP HBT Gain Block
50
Ref. Desig.
L1
C1, C2
C3
C4
R4
.018 µF
820 nH
50
RF IN
device
-35.44
-31.06
-25.99
-21.96
-19.74
-17.50
-15.68
-14.02
-12.75
-11.62
-10.22
S11 (dB)
-9.77
-8.35
Capacitor
= +4.8 V, I
Blocking
C1
Recommended Component Values
1000 pF
220 nH
Device S-parameters are available for download off of the website at: http://www.wj.com
Value / Type
39 nH wirewound inductor
56 pF chip capacitor
0.018 μF chip capacitor
Do Not Place
18 Ω 1% tolerance
500
CC
ECG055
-155.39
-130.40
-134.19
-143.12
-147.93
-165.99
177.82
162.84
145.85
126.85
104.39
S11 (ang)
= 65 mA, T = 25°C, calibrated to device leads)
89.88
70.44
Recommended Application Circuit
RF Choke
Resistor
Capacitor
0.018 µF
100 pF
68 nH
Bypass
900
Typical Device S-Parameters
Bias
Frequency (MHz)
Icc = 65 mA
R4
C4
C3
L1
Vcc
Capacitor
Blocking
C2
S21 (dB)
20.70
20.64
20.51
20.33
20.14
19.92
19.65
19.32
18.96
18.62
17.97
17.42
16.85
27 nH
68 pF
1900
RF OUT
Size
0603
0603
0603
0805
22 nH
68 pF
2200
178.22
160.99
142.21
123.40
104.91
S21 (ang)
-25.15
-45.49
86.66
68.34
49.37
30.89
11.81
-7.65
18 nH
56 pF
2500
-22.72
-22.79
-22.57
-22.41
-22.25
-21.53
-21.19
-20.96
-20.43
-20.02
-19.54
-19.65
-19.44
S12 (dB)
15 nH
39 pF
3500
-101.04
Specifications and information are subject to change without notice
S12 (ang)
-10.86
-17.52
-24.67
-31.23
-38.23
-46.84
-55.87
-64.61
-74.66
-86.77
-4.72
0.33
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.
Voltage
Supply
Recommended Bias Resistor Values
10 V
12 V
6 V
7 V
8 V
9 V
-27.17
-23.11
-18.21
-14.71
-12.69
-10.92
S22 (dB)
-9.29
-8.13
-7.17
-5.98
-5.08
-4.74
-3.88
18.5 ohms
33.8 ohms
111 ohms
R1 value
49 ohms
65 ohms
80 ohms
-103.46
-126.14
-147.96
-167.56
174.99
153.30
137.75
117.77
S22 (ang)
-13.13
-72.28
96.84
83.19
62.30
Page 3 of 4
January 2008
0805
1210
1210
2010
2010
2512
Size