AP601
Frequency
W-CDMA Channel Power
Power Gain
Input Return Loss
Output Return Loss
ACLR
IMD3 @ +24 dBm PEP
Operating Current, Icc
Collector Efficiency
Output P1dB
Quiescent Current, Icq
Vpd, Vbias
Vcc
High Dynamic Range 1.8W 28V HBT Amplifier
1930-1990 MHz Application Circuit (AP601-PCB1960)
Typical WCDMA Performance at 25
°C
at a channel power of +24 dBm
1960 MHz
+24 dBm
15 dB
11 dB
10 dB
-49 dBc
-62 dBc
52 mA
17 %
+32.7 dBm
40 mA
+5 V
+28 V
V
PD
GND
V
BIAS
V
CC
C7
1000pF
W = .030”
L = .980”
C27
0.1μF
4.7 nH
See note 3
C5
2.2pF
See note 4
C19
2.4pF
See note 5
C28
0.8pF
See note 6
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 0.035” (3.0° @ 1960 MHz) from the center of C5.
4. The center of C5 is placed at 0.085” (7.3° @ 1960 MHz) from the edge of the AP601 (U1).
5. The center of C19 is placed at 0.755” (64.5° @ 1960 MHz) from the edge of the AP601 (U1).
6. The center of C18 is placed at 0.300” (25.6° @ 1960 MHz) from the center of C19.
7. The bold-faced RF trace is for the DC bias feed. The stub’s length is approximately a ¼
λ.
8. The main RF trace is cut at component location L3 for this particular reference design.
1930-1990 MHz Application Circuit Performance Plots
Gain vs. Output Power vs. Frequency
CW tone, Vcc = 28V, Icq = 40 mA, 25
˚C
S11, S22 vs. Frequency
Vcc = 28V, Icq = 40 mA, 25
˚C
Efficiency vs. Output Power vs. Frequency
CW tone, Vcc = 28V, Icq = 40 mA, 25
˚C
16
15
14
13
12
11
23
1930 MHz
1960 MHz
1990 MHz
0
50
Collector Efficiency (%)
1930 MHz
1960 MHz
1990 MHz
-5
40
30
20
10
0
S11, S22 (dB)
Gain (dB)
-10
-15
-20
-25
S11
S22
25
27
29
31
33
1.8
1.85
1.9
1.95
2
2.05
2.1
18
22
26
30
34
Output Power (dBm)
ACLR1 vs. Output Power vs. Frequency
Vcc = 28V, Icq = 40 mA, 25
˚C
Frequency (GHz)
Output Power (dBm)
ACPR vs. Output Power vs. Frequency
IS-95A, 9 Ch. Fwd, 1960 MHz, Vcc = 28V, Icq = 40 mA, 25
˚C
IMD vs. Output Power
CW 2-tone signal, 940 MHz,
∆f
= 1 MHz, 28V, 40 mA Icq, 25
˚C
-40
1930 MHz
-40
-50
IMD (dBc)
-40
IMD3L
IMD3U
-45
1960 MHz
1990 MHz
ACLR1 (dBc)
-50
-55
-60
-65
16
18
20
22
24
26
WCDMA 3GPP TM 1+64DPCH,
60% clipping, PAR = 8.6 dB
-60
-70
-80
22
24
26
28
30
32
Output Power, PEP (dBm)
ACPR (dBc)
IMD5
-50
-60
-70
-80
17
19
21
23
25
27
Average Output Power (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 10 May 2007 ver 1
WJCI [ WJ COMMUNICATION. INC. ]
