AP602
Frequency
W-CDMA Channel Power
Power Gain
Input Return Loss
Output Return Loss
ACLR
IMD3 @ +27 dBm PEP
Operating Current, Icc
Collector Efficiency
Output P1dB
Quiescent Current, Icq
Vpd, Vbias
Vcc
High Dynamic Range 4W 28V HBT Amplifier
1930-1990 MHz Application Circuit (AP602-PCB1960)
Typical WCDMA Performance at 25
°C
at a channel power of +27 dBm
1960 MHz
+27 dBm
14.2 dB
12 dB
9 dB
-50 dBc
-51 dBc
103 mA
17 %
+35.5 dBm
80 mA
+5 V
+28 V
V
PD
GND
V
BIAS
V
CC
W = .030”
L = .980”
C7
1000pF
L3
4.7 nH
See note 3
C27
10pF
C2
2.7pF
See note 4
C30
2.4pF
See note 5
C30
Notes:
1. The primary RF microstrip line is 50
Ω.
2. Components shown on the silkscreen but not on the schematic are not used.
3. The center of L3 is placed at 0.095” (8.1° @ 1960 MHz) from the center C2.
4. The center of C2 is placed at 0.135” (11.5° @ 1960 MHz) from the edge of the AP602 (U1).
5. The center of C30 is placed at 0.580” (49.6° @ 1960 MHz) from the edge of the AP602 (U1).
6. The bold-faced RF trace is for the DC bias feed. The stub’s length is approximately a ¼
λ.
7. The main RF trace is cut at component location L3 for this particular reference design.
1930-1990 MHz Application Circuit Performance Plots
W-CDMA 3GPP Test Model 1+64 DPCH, 60% clipping, PAR = 8.6 dB @ 0.01% Probability, 3.84 MHz BW
Gain vs. Output Power vs. Frequency
CW tone, Vcc = 28V, Icq = 80 mA, 25
˚C
S11, S22 vs. Frequency
Vcc = 28V, Icq = 80 mA, 25
˚C
Efficiency vs. Output Power vs. Frequency
CW tone, Vcc = 28V, Icq = 80 mA, 25
˚C
16
15
S11, S22 (dB)
0
60
Collector Efficiency (%)
1930 MHz
1960 MHz
1990 MHz
-5
-10
-15
-20
-25
50
40
30
20
10
0
Gain (dB)
14
13
1930 MHz
12
11
26
1960 MHz
1990 MHz
S11
S22
28
30
32
34
36
1.8
1.85
1.9
1.95
2
2.05
2.1
16
20
24
28
32
36
Output Power (dBm)
ACLR1 vs. Output Power vs. Frequency
WCDMA, Vcc = 28V, Icq = 80 mA, 25
˚C
Frequency (GHz)
Output Power (dBm)
Efficiency vs. Output Power vs. Frequency
WCDMA, Vcc = 28V, Icq = 80 mA, 25
˚C
IMD vs. Output Power
CW 2-tone signal, 1960 MHz,
∆f
= 1 MHz, 28V, 80 mA Icq, 25
˚C
-40
1930 MHz
IMD3L
IMD3U
-45
Collector Efficiency (%)
-40
-50
IMD (dBc)
25
1930 MHz
1960 MHz
1990 MHz
20
15
10
5
0
1960 MHz
1990 MHz
ACLR1 (dBc)
IMD5
-50
-55
-60
-65
18
20
22
24
26
28
-60
-70
-80
22
24
26
28
30
32
18
20
22
24
26
28
Average Output Power (dBm)
Output Power, PEP (dBm)
Average Output Power (dBm)
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
Page 5 of 11 May 2007 ver 1
WJCI [ WJ COMMUNICATION. INC. ]
