AP603
High Dynamic Range 7W 28V HBT Amplifier
2110-2170 MHz Application Circuit (AP603-PCB2140)
Typical WCDMA Performance at 25 °C
at a channel power of +30 dBm
Frequency
2140 MHz
+30 dBm
11.8 dB
10 dB
W-CDMA Channel Power
Power Gain
Input Return Loss
Output Return Loss
ACLR
C7
8.2 dB
1000pF
-50 dBc
-51 dBc
246 mA
14.6 %
W = 0.030”
L = 0.980”
IMD3 @ +30 dBm PEP
Operating Current, Icc
Collector Efficiency
Output P1dB
+38.2 dBm
160 mA
+5 V
Quiescent Current, Icq
Vpd, Vbias
See note 4
0.8pF
See note 3
See note 7
See note 6
See note 5
Vcc
+28 V
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 C22 is placed at 0.185” (17.3° @ 2140 MHz) from the center of C1.
4. The center of C1 is placed at 0.860” (80.2° @ 2140 MHz) from the center of C5.
5. The center of C5 is placed at 0.085” (7.9° @ 2140 MHz) from the edge of the AP603 (U1).
6. The center of C23 is placed at 0.245” (22.9° @ 2140 MHz) from the edge of the AP603 (U1).
7. The center of C19 is placed at 0.475” (44.3° @ 2140 MHz) from the center of C23.
8. The bold-faced RF trace is for the DC bias feed. The stub’s length is approximately a ¼ λ.
2110-2170 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
S11, S22 vs. Frequency
Vcc = 28V, Icq = 160 mA, 25 ˚C
Efficiency vs. Output Power vs. Frequency
Gain vs. Output Power vs. Frequency
CW tone, Vcc = 28V, Icq = 160 mA, 25 ˚C
CW tone, Vcc = 28V, Icq = 160 mA, 25 ˚C
50
40
30
20
10
0
0
-5
12
11
10
9
2110 MHz
2140 MHz
2170 MHz
-10
-15
-20
-25
2110 MHz
S11
S22
8
2140 MHz
2170 MHz
7
2
2.05
2.1
2.15
2.2
2.25
2.3
22
26
30
34
38
30
32
34
36
38
40
Frequency (GHz)
Output Power (dBm)
Output Power (dBm)
Icc vs. Output Power vs. Frequency
WCDMA, Vcc = 28V, Icq = 160 mA, 25 ˚C
Efficiency vs. Output Power vs. Frequency
ACLR1 vs. Output Power vs. Frequency
WCDMA, Vcc = 28V, Icq = 160 mA, 25 ˚C
WCDMA, Vcc = 28V, Icq = 160 mA, 25 ˚C
300
275
250
225
200
175
150
25
20
15
10
5
-40
-45
-50
-55
-60
-65
2110 MHz
2140 MHz
2170 MHz
2110 MHz
2140 MHz
2170 MHz
2110 MHz
2140 MHz
2170 MHz
0
22
24
26
28
30
32
22
24
26
28
30
32
22
24
26
28
30
32
Average Output Power (dBm)
Average Output Power (dBm)
Average Output Power (dBm)
Unconditionally stable circuit version of this application circuit is available for download off of the website at: http://www.wj.com
Specifications and information are subject to change without notice
Page 10 of 14 May 2007 ver 1
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com
WJCI [ WJ COMMUNICATION. INC. ]
