AP601 Datasheet, PDF (4/10 Pages) WJ Communication. Inc. – High Dynamic Range 1.8W 28V HBT Amplifier

AP601
High Dynamic Range 1.8W 28V HBT Amplifier
869-960 Application Circuit (AP601-PCB900)
Typical WCDMA Performance at 25 °C
at a channel power of +24 dBm
Frequency (MHz)
880 940 Units
W-CDMA Ch. Power +24 +24 dBm
Power Gain
16.5 15.8 dB
Input Return Loss
8.9 14 dB
Output Return Loss
15 7.5 dB
ACLR
-50 -50 dBc
C7
IMD3 @ +24 dBm PEP -51 -51 dBc
1000pF
Operating Current, Icc
54 52 mA
Collector Efficiency
16.6 17 %
Output P1dB
+32.5 +32.5 dBm
Quiescent Current, Icq
Vpd, Vbias
Vcc
40
mA
+5
V
+28
V
3.3pF
See note 3
5.1 Ohm
C24
1.8pF
See note 4
15nH
C26 ^{See note 6}
0.5pF
See note 5
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 C1 is at 0.710” (29.1° @ 940 MHz) from the center of C24.
4. The center of C24 is placed at 0.285” (11.7°@ 940 MHz) from the edge of the AP601 (U1).
5. The center of C26 is placed at 0.055” (2.3° @ 940 MHz) from the edge of the AP601 (U1).
6. The center of L4 is at 0.095” (3.9° @ 940 MHz) from the center of C26.
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 components L3 and L4 for this particular reference design.
869-960 MHz Application Circuit Performance Plots
Gain vs. Frequency
Vcc = 28V, Icq = 40 mA, 25 ˚C
18
17
16
15
14
13
0.8 0.84 0.88 0.92 0.96
1
Frequency (GHz)
ACLR1 vs. Output Power vs. Frequency
WCDMA, Vcc = 28V, Icq = 40 mA, 25 ˚C
-40
869 MHz
920 MHz
880 MHz
940 MHz
-45
894 MHz
960 MHz
-50
-55
-60
16
WCDMA 3GPP Test Model 1+64DPCH,
60% clipping, PAR = 8.6 dB @ 0.01%
18
20
22
24
26
Average Output Power (dBm)
S11, S22 vs. Frequency
Vcc = 28V, Icq = 40 mA, 25 ˚C
0
-5
-10
-15
-20
-25
0.8
0.85
0.9
0.95
S11
S22
1
1.05
1.1
Frequency (GHz)
IMD vs. Output Power
CW 2-tone signal, 940 MHz, ∆f = 1 MHz, 28V, 40 mA Icq, 25 ˚C
-40
IMD3L
IMD3U
-50
IMD5
-60
-70
20
22
24
26
28
30
Output Power, PEP (dBm)
Efficiency vs. Output Power vs. Frequency
CW tone, Vcc = 28V, Icq = 40 mA, 25 ˚C
60
920 MHz
50
940 MHz
960 MHz
40
30
20
10
0
17
21
25
29
33
Output Power (dBm)
ACPR vs. Output Power vs. Frequency
IS-95A, 9 Ch. Fwd, 940 MHz, Vcc = 28V, Icq = 40 mA, 25 ˚C
-40
-50
-60
-70
17
19
21
23
25
27
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
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: [phone] • e-mail: [e-mail] • Web site: www.wj.com
Page 4 of 10 May 2007 ver 1