ETC AH22

AH22
The Communications Edge ™
High Dynamic Range CATV Amplifier
Product Description
Product Features
• 50-860 MHz Bandwidth
• -61 dBc CTB, 110 Channels,
•
40 dBmV
-63 dBc CSO, 110 Channels,
40 dBmV
4.5 dB Noise Figure
11.3 dB Gain
23 dBm P1dB
Surface Mount
Thermally enhanced SOIC-8 pkg
Single +5 Volt Supply
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•
•
•
•
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Specifications
Functional Diagram
The AH22 is a high dynamic range amplifier targeting cable TV markets. A combination of gain
flatness, high linearity and bandwidth make it
ideal for CATV distribution, cable modem and
laser diode driver applications. The device is
designed for 75 Ω systems and packaged for
push-pull operation. A mature and reliable GaAs
MESFET technology is employed to maximize
linearity at low power dissipation. The package is
a thermally enhanced SOIC-8 and all devices are
100% RF tested.
Parameter
Units
Minimum
Frequency Range
S21-Gain
S21-Gain
S11-Input Return Loss
S22-Output Return Loss
Output IP3
Output IP2
Noise Figure
Output P1dB
CSO
MHz
dB
dB
dB
dB
dBm
dBm
dB
dBm
dBc
50-860
11.3
11.0
-12
-12
41
65
4.5
23
-63
CSO
dBc
-58
CTB
dBc
-61
CTB
dBc
-59
Operating Current Range
Supply Voltage
mA
V
240
Typical
300
5
8
7
6
5
1
2
3
4
Function
Input 1
Ground
Input 2
Output/Bias2
Output/Bias1
Maximum
Pin No.
1
2,3,6,7
4
5
8
Condition
50 MHz
860 MHz
360
71.7 dBmV
110 channels, 50-750 MHz, 40 dBmV
output/channel
135 channels, 50-860 MHz, 39 dBmV
output/channel
110 channels, 50-750 MHz, 40 dBmV
output/channel
135 channels, 50-860 MHz, 39 dBmV
output/channel
Vdd = 5.0 V
Test conditions unless otherwise noted. T = 25˚C, Vdd = 5.0 V, 75 Ω system.
1. Typical specifications reflect AH22 measured with external matching circuits.
2. OIP3 measured with 2 tones at an output power of 8 dBm/tone separated by 10 MHz. The suppression on the largest IM3 product is used to calculate OIP3 using a 2:1 slope rule.
Absolute Maximum Ratings
Parameter
Operating Case
Storage Temperature
Junction Temperature
Thermal Resistance (θJC)
Supply Voltage
Input RF Power (continuous)
Ordering Information
Rating
-40 to +85°C
-40 to +125°C
+155°C
28°C/W
+6.0 V
+13 dBm
Part No.
Description
AH22
High Dynamic CATV Range Amplifier
(Available in tape and reel)
AH22-PCB
Fully Assembled Application Circuit
50-860 MHZ
AH22DUAL-PCB Fully Assembled Application Circuit,
Dual AH22
Operation of this device above any of these parameters may cause permanent damage.
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com
April 2002
AH22
Push-Pull Circuit: 50-860 MHz
Performance Charts
Typical Performance (75 Ohm System)
S-Parameters
15
Frequency
50 MHz 450 MHz 750 MHz 860 MHz
Magnitude S21
11.7 dB 11.7 dB 11.4 dB 11.3 dB
Magnitude S11 -11.0 dB -12.3 dB -11.7 dB -15.6 dB
Magnitude S22 -13.2 dB -11.9 dB -11.4 dB -12.3 dB
OIP2
72.0 dBm 70 dBm 72 dBm 70 dBm
OIP3
42.0 dBm 43 dBm 41 dBm 40 dBm
Bias
Vds = 5 V, Id = 300 mA
Magnitude (dB)
10
S21
5
0
-5
S11
-10
-15
CSO
CTB
XMOD
-63 dBc
-61 dBc
-61 dBc
750 MHz
750 MHz
750 MHz
S22
-20
Multi-channel Measurements
0
110 channels
110 channels
110 channels
+40 dBmV/ch, Flat
+40 dBmV/ch, Flat
+40 dBmV/ch, Flat
100 200 300 400 500 600 700 800 900 1000
Frequency (MHz)
Linearity vs. Frequency
80
Schematic
R = 560
C = 100 pF
C = 1000 pF
L = 470 nH
L = 5.6 nH
C = 1.5 pF
RF IN
6 turns bifilar
wire around
ferrite core
RF OUT
OIP2
60
50
40
OIP3
30
20
V=5V
I = 290 mA
10
C = 1.5 pF
6 turns bifilar
wire around
ferrite core
Intercept Point (dBm)
70
DC +5 V
L = 5.6 nH
R = 560
AH22
C = 100 pF
4 or more Via
Grounds req.
L = 470 nH
DC +5 V
Or
MaCOM
ETCI-1-13
SMT balun
C = 1000 pF
0
0
100 200 300 400 500 600 700 800 900 1000
Frequency (MHz)
Core: TDK H5C2-T3.1-1.3-1.3
Wire: MWS B2383211
FR4 Board Layout (T = 28 Mils to ground plane)
0603 Package
C = 1000 pF
Interior Trans. Lines Z = 37.5 Ohm
+5 V
1008 Package
L = 5.6 nH
0603 Package
R = 560 ohm
L = 470 nH
Coilcraft
1008 Package
0603 Package
C = 100 pF
0603 Package
C = 1000 pF
AH22
0603 Package
C = 1000 pF
0402 Package
C = 1.5 pF
1008 Package
L = 5.6 nH
0603 Package
R = 560 ohm
0603 Package
C = 100 pF
L = 470 nH
Coilcraft
1008 Package
+5 V
0603 Package
C = 1000 pF
Note: Balun and board losses have not been extracted but typically account for 0.4 dB loss midband and 1.1 dB loss at 860 MHz.
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com
April 2002
Dual Push-Pull Circuit: 50-860 MHz
Performance Charts
Typical Performance (75 Ohm System)
S-Parameters
15
Frequency
50 MHz 450 MHz 750 MHz 860 MHz
Magnitude S21
13.3 dB 13.3 dB 12.5 dB 12.3 dB
Magnitude S11 -21.0 dB -18.0 dB -21.0 dB -16.2 dB
Magnitude S22 -16.4 dB -18.2 dB -20.2 dB -17.1 dB
OIP2
73.0 dBm 72 dBm 75 dBm 76 dBm
OIP3
45.0 dBm 49 dBm 46 dBm 47 dBm
Bias
Vds = 5 V, Id = 600 mA
S21
10
Magnitude (dB)
5
0
-5
-10
S22
-15
-20
S11
-25
Schematic
0
6 turns bifilar
wire around
ferrite core
R = 560
L = 3.3 nH
L = 470 nH
C = 1000 pF
8 or more Via
Grounds req.
RF IN
6 turns bifilar
wire around
ferrite core
Linearity vs. Frequency
or
MaCOM
ETCI-1-13
Surface Mount
balun
80
OIP2
70
RF OUT
C = 1000 pF
L = 3.3 nH
R = 560
DC +5 V
60
50
OIP3
40
V=5V
I = 600 mA
30
Core: TDK H5C2-T3.1-1.3-1.3
Wire: MWS B2383211
L = 470 nH
C = 100 pF
Intercept Point (dBm)
C = 1000 pF
DC +5 V
C = 100 pF
100 200 300 400 500 600 700 800 900 1000
Frequency (MHz)
20
0
100 200 300 400 500 600 700 800 900 1000
Frequency (MHz)
C = 1000 pF
FR4 Board Layout (T = 28 Mils to ground plane)
0603 Package
C = 1000 pF
Interior Trans. Lines Z = 37.5 Ohm
0603 Package
L = 3.3 nH
0603 Package
R = 560 ohm
0603
Package
C = 100 pF
+5 V
L = 470 nH
Coilcraft
1008 Package
GND
0603 Package
C = 1000 pF
AH22
AH22
0603 Package
C = 1000 pF
0603 Package
L = 3.3 nH
0603 Package
R = 560 ohm
0603
Package
C = 100 pF
0603 Package
C = 1000 pF
L = 470 nH
Coilcraft
1008 Package
+5 V
Note: Balun and board losses have not been extracted but typically account for 0.4 dB loss midband and 1.1 dB loss at 860 MHz.
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com
April 2002
Outline Drawing
Land Pattern
Mounting Configuration
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com
April 2002
AH22
Typical Test Data
S-Parameters, single unmatched device (Vdd = +5 V, Ids = 150 mA, T = 22°C, Z = 75 Ω)
Freq. (MHz)
S11 (dB)
S11 Ang
S21 (dB)
S21 Ang
S12 Mag
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
-12.892
-12.870
-12.672
-12.356
-11.872
-11.476
-11.056
-10.449
-9.960
-9.505
-9.051
-8.599
-8.188
-7.855
-7.497
-7.154
-6.889
-6.565
-6.298
-6.104
-5.852
-2.166
-11.286
-23.045
-33.366
-42.817
-52.297
-60.214
-67.937
-74.745
-80.896
-86.735
-92.061
-97.267
-101.536
-106.143
-110.057
-114.001
-117.238
-120.930
-124.039
-127.205
17.059
17.067
17.043
16.967
16.894
16.801
16.723
16.619
16.514
16.376
16.220
16.067
15.918
15.725
15.515
15.370
15.171
14.956
14.785
14.586
14.378
179.076
176.030
172.073
168.036
164.326
160.805
157.092
153.456
149.951
146.241
142.910
139.571
136.143
132.858
129.818
126.785
123.633
120.846
118.193
115.177
112.740
0.050
0.051
0.051
0.051
0.051
0.051
0.052
0.053
0.053
0.054
0.055
0.056
0.057
0.057
0.058
0.058
0.059
0.059
0.060
0.060
0.061
-0.502
0.301
0.703
0.964
1.258
1.800
1.771
1.858
2.304
1.529
1.348
1.105
0.884
-0.090
-0.565
-0.719
-1.741
-2.484
-3.030
-4.081
-4.826
-36.560
-37.190
-31.958
-28.320
-26.196
-24.523
-23.104
-21.819
-20.846
-20.003
-19.114
-18.350
-17.773
-17.233
-16.631
-16.162
-15.749
-15.276
-14.928
-14.636
-14.283
-65.063
-72.212
-82.160
-90.551
-94.845
-100.971
-103.565
-105.985
-108.359
-110.824
-114.155
-115.873
-119.083
-120.438
-122.901
-125.464
-127.412
-129.278
-131.457
-133.161
-135.168
This document contains information on a new product.
Specifications and information are subject to change without notice.
Caution! ESD sensitive device.
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com
April 2002