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WJ Communication

AH22 Datasheet Preview

AH22 Datasheet

High Dynamic Range CATV Amplifier

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AH22
High Dynamic Range CATV Amplifier
The Communications Edge
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
Specifications
Product Description
The AH22 is a high dynamic range amplifier tar-
geting 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 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.
Functional Diagram
8 76 5
1234
Function
Input 1
Ground
Input 2
Output/Bias2
Output/Bias1
Pin No.
1
2,3,6,7
4
5
8
Parameter
Frequency Range
S21-Gain
S21-Gain
S11-Input Return Loss
S22-Output Return Loss
Output IP3
Output IP2
Noise Figure
Output P1dB
CSO
CSO
CTB
CTB
Operating Current Range
Supply Voltage
Units
MHz
dB
dB
dB
dB
dBm
dBm
dB
dBm
dBc
dBc
dBc
dBc
mA
V
Minimum
240
Typical
50-860
11.3
11.0
-12
-12
41
65
4.5
23
-63
-58
-61
-59
300
5
Maximum
Condition
50 MHz
860 MHz
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
360 Vdd = 5.0 V
Test conditions unless otherwise noted. T = 25˚C, Vdd = 5.0 V, 75 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
Ordering Information
Parameter
Rating
Part No.
Description
Operating Case
Storage Temperature
Junction Temperature
Thermal Resistance (θJC)
Supply Voltage
Input RF Power (continuous)
-40 to +85°C
-40 to +125°C
+155°C
28°C/W
+6.0 V
+13 dBm
Operation of this device above any of these parameters may cause permanent damage.
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
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com
April 2002




WJ Communication

AH22 Datasheet Preview

AH22 Datasheet

High Dynamic Range CATV Amplifier

No Preview Available !

AH22
Push-Pull Circuit: 50-860 MHz
Typical Performance (75 Ohm System)
Frequency
Magnitude S21
Magnitude S11
Magnitude S22
OIP2
OIP3
Bias
50 MHz 450 MHz 750 MHz
11.7 dB 11.7 dB 11.4 dB
-11.0 dB -12.3 dB -11.7 dB
-13.2 dB -11.9 dB -11.4 dB
72.0 dBm 70 dBm 72 dBm
42.0 dBm 43 dBm 41 dBm
Vds = 5 V, Id = 300 mA
860 MHz
11.3 dB
-15.6 dB
-12.3 dB
70 dBm
40 dBm
Multi-channel Measurements
CSO
CTB
XMOD
-63 dBc 750 MHz
-61 dBc 750 MHz
-61 dBc 750 MHz
110 channels
110 channels
110 channels
+40 dBmV/ch, Flat
+40 dBmV/ch, Flat
+40 dBmV/ch, Flat
Schematic
RF IN
6 turns bifilar
wire around
ferrite core
DC +5 V C = 1000 pF
R = 560 C = 100 pF
L = 5.6 nH
C = 1.5 pF
L = 470 nH
C = 1.5 pF
L = 5.6 nH
R = 560
4 or more Via
Grounds req.
AH22
C = 100 pF
L = 470 nH
DC +5 V C = 1000 pF
6 turns bifilar
wire around
ferrite core
RF OUT
Or
MaCOM
ETCI-1-13
SMT balun
Core: TDK H5C2-T3.1-1.3-1.3
Wire: MWS B2383211
FR4 Board Layout (T = 28 Mils to ground plane)
Interior Trans. Lines Z = 37.5 Ohm
1008 Package
L = 5.6 nH
0603 Package
R = 560 ohm
0603 Package
C = 1000 pF
+5 V
0603 Package
C = 100 pF
L = 470 nH
Coilcraft
1008 Package
0603 Package
C = 1000 pF
0402 Package
C = 1.5 pF
AH22
0603 Package
C = 1000 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.
Performance Charts
S-Parameters
15
10
S21
5
0
-5
-10 S11
-15
-20
0
S22
100 200 300 400 500 600 700 800 900 1000
Frequency (MHz)
Linearity vs. Frequency
80
70
OIP2
60
50
40
OIP3
30
20
10 V = 5 V
I = 290 mA
0
0 100 200 300 400 500 600 700 800 900 1000
Frequency (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


Part Number AH22
Description High Dynamic Range CATV Amplifier
Maker WJ Communication
Total Page 5 Pages
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