AH22S
Product Features
x
50 – 1000 MHz
x
±0.2 dB Gain Flatness
x
+25 dBm P1dB
x
-74 dBc CTB / CSO
+39dBmV/channel, 77 channels
The Communications Edge
TM
Product Information
High Dynamic Range CATV Amplifier
Product Description
The AH22S is a high dynamic range amplifier targeting
cable TV markets. The combination of gain flatness,
high linearity, and bandwidth makes it ideal for CATV
distribution, cable modem, and laser diode driver
applications.
The device uses two matched devices and is ideal for
operation in a push-pull configuration to achieve high
second order linearity. A mature and reliable GaAs
MESFET technology is employed to maximize linearity
at low power dissipation. The dual amplifier is housed in
an industry standard surface-mount SOIC-8 package with
all devices being 100% RF and dc tested. This device is
available in a lead-free/green/RoHS-compliant package
with NiPdAu plating material on the leads.
It is
compatible with both lead-free and lead soldering
processes.
Functional Diagram
1
2
3
4
8
7
6
5
x
+43 dBm Output IP3
x
+77 dBm Output IP2
x
Matched amplifiers for a push-
pull configuration
x
+5V Single Positive Supply
x
MTTF > 1000 years
Applications
x
CATV Head End Equipment
x
CATV Line Amplifiers
x
FTTH Repeaters
Function
Amp 1 Input
Amp 2 Input
Amp 2 Output
Amp 1 Output
Ground
Pin No.
1
4
5
8
2, 3, 6, 7,
Backside
paddle
Single-ended Device Specifications
(1)
Parameter
Operational Bandwidth
Test Frequency
Gain
Output IP3
(2)
Device Current
Device Voltage
¡
Typical Performance
(3)
Parameter
Frequency
Gain
(4)
Input Return Loss
Output Return Loss
CTB
(5)
CSO
(5)
XMOD
(5)
Output P1dB
Output IP2
(6)
Output IP3
(7)
Noise Figure
Device Bias
Units Min
MHz
MHz
dB
dBm
mA
V
50
13
+37
120
Typ
800
14.5
+40
160
5
Max
1000
Units
MHz
dB
dB
dB
dBc
dBc
dBc
dBm
dBm
dBm
dB
V
50
11.3
10.6
17.1
-75
-73
-63
+25.9
+79
+43
6.1
Typical
250
450
860
11.1
11.1
11.1
10.4
11.6
15.8
15.4
15.4
18.2
-74
-74
-86
-77
-63
-63
+26
+25.5 +24.7
+77
+77
+76
+45
+42
+42
4.6
4.5
4.2
+5 V @ 320 mA
190
1. Test conditions unless otherwise noted: 25 ºC, Vd = +5 V, 800 MHz on each individual single-
branch amplifier in a 50 test fixture.
2. 3OIP measured with two tones at an output power of +5 dBm/tone separated by 10 MHz. The
suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule.
3. Typical parameters reflect performance in a push-pull application circuit as shown on page 3. Note
that the feedback resistance values are R1 = R2 = 560 .
4. Balun, board, and connector losses have not been extracted, but typically account of 0.4 dB loss
midband and 1.1 dB loss at 860 MHz.
5. Measured at +39 dBmV/channel, 77 channels Flat Loading.
6. OIP2 is measured at f1 + f2 at +8 dBm / tone.
7. OIP3 is measured at 8 dBm / tone with 10 MHz spacing.
¡
Absolute Maximum Rating
Operating Case Temperature
Storage Temperature
Supply Voltage
RF Input Power (continuous)
Junction Temperature
Parameter
-40 to +85
qC
-55 to +150
qC
+6 V
+13 dBm
+220
qC
Rating
Ordering Information
Part No.
AH22S-G
AH22S-PCB
Description
(lead-free/green/RoHS-compliant SOIC8 Pkg)
High Dynamic Range CATV Amplifier
Push-pull CATV Evaluation Board
Operation of this device above any of these parameters may cause permanent damage.
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 1 of 4 April 2006
WJCI [ WJ COMMUNICATION. INC. ]
