WJA1515
+5V Active-Bias InGaP HBT Gain Block
Vcc=+5.00V
Icc = 70 mA
Application Circuit
R4
0
Ω
C3
Bypass
Capacitor
RF IN
R1
0
Ω
L1
RF Choke
RF OUT
WJA1515
C1
Blocking
Capacitor
R2
0
Ω
C2
Blocking
Capacitor
Recommended Component Values
(1)
Ref. Name
Value / Type
L1
470 nH ferrite core wire wound inductor
(2)
C1, C2
1000 pF NPO chip capacitor
C3
0.018
µF
chip capacitor
R1, R2, R4 0
Ω
(3)
C4, C5, C6, Do Not Place
(3)
R3, R5, R6,
R7, R8
1.
2.
3.
Size
0805
0603
0603
0603
The listed values are contained on the evaluation board to achieve optimal broadband performance
For lower cost and performance (100 – 1000 MHz) option use 470 nH air core wire wound inductor.
Place holders for the 0Ω resistors and “Do Not Place” references are not needed for final design.
Typical Device Data
S-Parameters (V
device
= +5V, I
CC
= 70 mA, T = 25
°C,
calibrated to device leads)
Freq (MHz)
S11 (dB)
S11 (ang)
S21 (dB)
S21 (ang)
S12 (dB)
S12 (ang)
S22 (dB)
S22 (ang)
10
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
1050
1100
1150
1200
-10.40
-11.78
-11.88
-12.00
-11.95
-12.02
-11.99
-12.01
-12.05
-12.10
-12.11
-12.18
-12.23
-12.38
-12.41
-12.57
-12.66
-12.86
-13.09
-13.32
-13.50
-13.71
-13.86
-14.25
-14.51
-68.54
-147.69
-164.70
-171.07
-174.79
-177.26
-179.02
-179.72
178.38
179.03
177.28
175.85
175.72
175.60
175.29
175.07
173.22
172.98
172.66
171.90
169.85
168.68
168.51
167.74
166.55
19.24
15.26
14.69
14.55
14.44
14.42
14.41
14.45
14.41
14.42
14.38
14.38
14.35
14.37
14.32
14.31
14.29
14.32
14.25
14.31
14.33
14.24
14.27
14.24
14.24
162.11
163.11
166.42
165.63
163.62
161.91
159.29
156.24
153.53
150.95
148.07
145.24
142.31
139.51
136.46
134.22
130.82
127.61
124.85
121.92
118.85
115.81
113.00
109.68
106.31
-21.89
-19.06
-18.95
-18.92
-18.90
-18.85
-18.88
-18.92
-18.85
-18.88
-18.81
-18.93
-18.89
-18.90
-18.86
-18.82
-18.84
-18.88
-18.81
-18.85
-18.85
-18.77
-18.82
-18.78
-18.89
24.01
6.36
1.55
-0.67
-2.59
-4.25
-5.75
-6.68
-8.25
-9.32
-10.61
-12.71
-13.92
-15.05
-15.68
-17.70
-19.20
-20.26
-21.34
-22.88
-23.79
-25.09
-26.95
-28.33
-29.13
-7.61
-14.60
-16.18
-16.65
-16.75
-16.96
-17.05
-17.16
-17.32
-17.33
-17.50
-17.54
-17.70
-17.75
-17.65
-17.80
-17.82
-17.63
-17.35
-17.08
-16.89
-16.54
-16.21
-15.81
-15.50
-51.03
-124.79
-147.77
-156.43
-161.77
-164.33
-165.75
-166.54
-167.58
-166.32
-168.12
-168.06
-168.70
-167.88
-165.78
-165.38
-164.94
-162.23
-160.51
-158.22
-157.63
-154.97
-152.98
-151.38
-150.31
Device S-parameters are available for download from the website at: http://www.wj.com
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
Dec 2007