AG303-63
InGaP HBT Gain Block
Vcc
Icc = 35 mA
Application Circuit
R1
Bias
Resistor
C4
Bypass
Capacitor
C3
0.018 µF
RF IN
C1
Blocking
Capacitor
L1
RF Choke
AG303-63
RF OUT
C2
Blocking
Capacitor
Recommended Component Values
Recommended Bias Resistor Values
Reference
Frequency (MHz)
Designator
50
500
900 1900 2200 2500
L1
820 nH 220 nH 68 nH 27 nH 22 nH 18 nH
C1, C2, C4 .018 µF 1000 pF 100 pF 68 pF 68 pF 56 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 F chip capacitor
0603
C4
Do Not Place
R1
22.1 1% tolerance
0805
3500
15 nH
39 pF
Typical Device Data
S upply
R1 value
Size
Voltage
5V
22.1 ohms
0603
6V
51 ohms
0805
7V
80 ohms
1206
8V
108 ohms
1210
9V
137 ohms
1210
10 V
166 ohms
1210
12 V
223 ohms
2010
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. A
1% tolerance resistor is recommended.
Freq (MHz)
S-Parameters (Vdevice = +4.23 V, ICC = 35 mA, T = 25 C, calibrated to device leads)
S11 (dB) S11 (ang) S21 (dB) S21 (ang) S12 (dB) S12 (ang) S22 (dB)
S22 (ang)
50
-22.98
179.98
21.98
177.39
-24.44
3.54
-20.65
-5.68
250
-22.69
159.13
21.87
167.91
-25.02
4.82
-20.97
-15.75
500
-20.16
143.45
21.63
156.07
-24.85
3.57
-25.40
-43.37
750
-20.26
125.22
21.26
144.84
-24.83
4.51
-25.00
-70.94
1000
-20.94
105.07
20.77
134.31
-24.96
3.28
-23.86
-91.79
1250
-20.59
89.33
20.29
124.27
-24.48
7.57
-22.22
-112.20
1500
-20.65
73.36
19.71
115.11
-24.24
5.92
-20.71
-125.75
1750
-20.44
58.55
19.14
106.54
-23.97
6.93
-19.65
-135.37
2000
-19.79
46.75
18.54
98.41
-23.30
9.91
-18.55
-142.40
2250
-16.65
30.04
17.95
91.26
-23.27
8.63
-16.11
-127.79
2500
-17.12
24.85
17.54
85.95
-23.55
5.06
-16.52
-139.55
2750
-17.94
23.45
17.04
78.85
-22.50
5.49
-16.78
-152.45
3000
-19.00
24.66
16.52
71.97
-22.27
7.44
-17.04
-171.24
3250
-20.08
31.09
16.06
65.74
-21.97
7.62
-16.83
169.31
3500
-21.05
44.35
15.56
59.22
-21.88
5.59
-16.19
149.95
3750
-20.77
62.21
15.09
52.71
-21.42
3.70
-14.57
132.43
4000
-19.88
76.48
14.56
46.28
-21.00
1.61
-12.93
122.50
4250
-18.40
88.30
14.12
40.49
-20.52
-0.58
-11.61
114.50
4500
-17.26
96.65
13.65
34.69
-20.29
-4.52
-10.81
107.97
4750
-16.54
101.15
13.23
28.72
-20.01
-4.49
-10.22
105.55
5000
-16.75
103.13
12.85
23.29
-20.11
-4.65
-9.92
105.40
5250
-17.21
108.11
12.49
18.36
-19.52
-7.40
-10.06
102.86
5500
-18.69
112.12
12.14
13.87
-19.18
-10.39
-10.32
103.16
5750
-20.02
123.21
11.90
8.93
-19.00
-12.21
-10.98
105.01
6000
-22.38
131.64
11.68
4.17
-18.60
-14.81
-11.52
103.93
Device S-parameters are available for download from the website at: http://www.TriQuint.com
Specifications and information are subject to change without notice
TriQuint Semiconductor, Inc Phone +1-503-615-9000 FAX: +1-503-615-8900 e-mail: info-sales@tqs.com Web site: www.TriQuint.com
Page 4 of 5 August 2009