AH22
器件资料摘要：
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
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 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.
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
Functional Diagram
Absolute Maximum Ratings
Parameter Rating
Operating Case -40 to +85°C
Storage Temperature -40 to +125°C
Junction Temperature +155°C
Thermal Resistance (θ
JC
) 28°C/W
Supply Voltage +6.0 V
Input RF Power (continuous) +13 dBm
Operation of this device above any of these parameters may cause permanent damage.
Ordering Information
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
Function Pin No.
Input 1 1
Ground 2,3,6,7
Input 2 4
Output/Bias2 5
Output/Bias1 8
1234
8765
High Dynamic Range CATV Amplifier
Specifications
Parameter Units Minimum Typical Maximum Condition
Frequency Range MHz 50-860
S21-Gain dB 11.3 50 MHz
S21-Gain dB 11.0 860 MHz
S11-Input Return Loss dB -12
S22-Output Return Loss dB -12
Output IP3 dBm 41
Output IP2 dBm 65
Noise Figure dB 4.5
Output P1dB dBm 23 71.7 dBmV
CSO dBc -63 110 channels, 50-750 MHz, 40 dBmV
output/channel
CSO dBc -58 135 channels, 50-860 MHz, 39 dBmV
output/channel
CTB dBc -61 110 channels, 50-750 MHz, 40 dBmV
output/channel
CTB dBc -59 135 channels, 50-860 MHz, 39 dBmV
output/channel
Operating Current Range mA 240 300 360 Vdd = 5.0 V
Supply Voltage V 5
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.
The Communications Edge
™
AH22
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 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.
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
Functional Diagram
Absolute Maximum Ratings
Parameter Rating
Operating Case -40 to +85°C
Storage Temperature -40 to +125°C
Junction Temperature +155°C
Thermal Resistance (θ
JC
) 28°C/W
Supply Voltage +6.0 V
Input RF Power (continuous) +13 dBm
Operation of this device above any of these parameters may cause permanent damage.
Ordering Information
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
Function Pin No.
Input 1 1
Ground 2,3,6,7
Input 2 4
Output/Bias2 5
Output/Bias1 8
1234
8765
High Dynamic Range CATV Amplifier
Specifications
Parameter Units Minimum Typical Maximum Condition
Frequency Range MHz 50-860
S21-Gain dB 11.3 50 MHz
S21-Gain dB 11.0 860 MHz
S11-Input Return Loss dB -12
S22-Output Return Loss dB -12
Output IP3 dBm 41
Output IP2 dBm 65
Noise Figure dB 4.5
Output P1dB dBm 23 71.7 dBmV
CSO dBc -63 110 channels, 50-750 MHz, 40 dBmV
output/channel
CSO dBc -58 135 channels, 50-860 MHz, 39 dBmV
output/channel
CTB dBc -61 110 channels, 50-750 MHz, 40 dBmV
output/channel
CTB dBc -59 135 channels, 50-860 MHz, 39 dBmV
output/channel
Operating Current Range mA 240 300 360 Vdd = 5.0 V
Supply Voltage V 5
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.
The Communications Edge
™