Broadband CATV Amplifier,
50 - 1000 MHz
Features
•
•
•
•
•
Low Cost Plastic SOT-89 Package
75 Ohm Input / Output Match
-80 dBc CTB
2.7 dB Noise Figure
14.8 dB Gain
MAAMSS0031
V2
Functional Schematic
GND
Description
M/A-COM’s MAAMSS0031 CATV amplifier is a
GaAs MMIC which exhibits low distortion in a
low-cost miniature surface mount plastic package.
The MAAMSS0031 employs a monolithic single
stage design featuring a convenient 75 ohm input/
output impedance that minimizes the number of
external components required.
The MAAMSS0031 provides low noise and high
linearity. It is ideally suited for set top boxes, home
gateways, and other broadband internet based
appliances.
The MAAMSS0031 is fabricated using M/A-COM’s
PHEMT process to realize low noise and low
distortion. The process features full passivation for
robust performance and reliability.
Pin 1
RF
IN
GND
RF
OUT
Pin Configuration
PIN No.
1
2
3
PIN Name
RFIN
GND
RFOUT
Description
RF Input
Ground
RF Output / Drain Supply
Ordering Information
Part Number
MAAMSS0031
MAAMSS0031TR
MAAMSS0031TR-3000
MAAMSS0031SMB-01
MAAMSS0031SMB-02
Absolute Maximum Ratings
1
Package
Parameter
RF Input Power
Voltage
Operating Temperature
Storage Temperature
Absolute Maximum
15 dBm
10.0 volts
-40 °C to +85 °C
-65 °C to +150 °C
SOT-89 Plastic Package
1000 Piece Tape and Reel
3000 Piece Tape and Reel
Sample Test Board
(Includes 5 Samples)
Enhanced IRL & Gain
Sample Test Board
(Includes 5 Samples)
1. Exceeding any one or combination of these limits may
cause permanent damage to this device.
Note: Reference Application Note M513 for reel size
information.
1
M/A-COM Inc. and its affiliates reserve the right to make changes to
the product(s) or information contained herein without notice.
M/A-COM makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does
M/A-COM assume any liability whatsoever arising out of the use.
or application of any product(s) or information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit
www.macom.com
for additional data sheets and product information.
Broadband CATV Amplifier,
50 - 1000 MHz
MAAMSS0031
V2
Electrical Specifications:
T
A
= 25°C, Freq: 50 - 1000 MHz, V
DD
= +8 Volts, Z
0
= 75 Ohms
Parameter
Gain
Gain Flatness
2
Noise Figure
Input Return Loss
2
Output Return Loss
Output IP3
Composite Triple Beat, CTB
Composite Second Order, CSO
P1dB
I
DD
+ 8 Volts
6 MHz Spacing, -10 dBm output per tone
132 channels, +23 dBmV/channel at the output.
132 channels, +23 dBmV/channel at the output.
Test Conditions
Units
dB
dB
dB
dB
dB
dBm
dBc
dBc
dBm
mA
Min.
14.0
—
—
—
—
—
—
—
—
—
Typ.
14.8
0.5
2.7
20
18
36
-80
-70
23
100
Max.
16.0
1.0
3.8
—
—
—
—
—
—
130
2. For improved Input Return Loss and Gain Flatness use the schematic and component values as indicated on page 4.
Schematic Including Off-Chip
Components
Recommended Board Layout
Pin 1
L2
RF
IN
C1
C4
R1
C3
C2
L1
VDD
RF
OUT
Off-Chip Component Values
Component
C1
C2
C3
C4
L1
L2
R1
Value
0.01 µF
0.01 µF
0.01 µF
0.01 µF
560 nH
8.2 nH
523
Ω
Package
0402
0402
0402
0402
1210
0402
0402
2
M/A-COM Inc. and its affiliates reserve the right to make changes to
the product(s) or information contained herein without notice.
M/A-COM makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does
M/A-COM assume any liability whatsoever arising out of the use.
or application of any product(s) or information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit
www.macom.com
for additional data sheets and product information.
Broadband CATV Amplifier,
50 - 1000 MHz
Typical Performance Curves
Gain vs. Frequency over Temperature to 1 GHz
15.5
MAAMSS0031
V2
Gain vs. Frequency over Temperature to 3 GHz
20
15.0
15
14.5
10
14.0
-40°C
+25°C
+85°C
-40°C
+25°C
+85°C
5
13.5
13.0
0.0
0.2
0.4
0.6
0.8
1.0
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Input Return Loss vs. Frequency over Temperature
0
-40 °C
+25 °C
+85 °C
Output Return Loss vs. Frequency over Temperature
0
-40°C
+25°C
+85°C
-10
-5
-5
-10
-15
-15
-20
-20
-25
-25
-30
0.0
0.2
0.4
0.6
0.8
1.0
-30
0.0
0.2
0.4
0.6
0.8
1.0
Frequency (GHz)
Frequency (GHz)
Noise Figure vs. Frequency
5.0
4.0
3.0
2.0
1.0
0.0
0.0
0.2
0.4
0.6
0.8
1.0
Frequency (GHz)
3
M/A-COM Inc. and its affiliates reserve the right to make changes to
the product(s) or information contained herein without notice.
M/A-COM makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does
M/A-COM assume any liability whatsoever arising out of the use.
or application of any product(s) or information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit
www.macom.com
for additional data sheets and product information.
Broadband CATV Amplifier,
50 - 1000 MHz
Enhanced Input Return Loss (IRL) and Gain Flatness
MAAMSS0031
V2
An enhanced input return loss and improved gain flatness circuit has been developed for applications where those
parameters are key to system performance. Adding a series inductor, L3, to the input, a shunt capacitor, C5, to the output,
and changing the bias inductor, L1, value will improve the input return loss to 25 dB typical from 50 to 1000 MHz. The gain
flatness will also improve to less than 0.3 dB from 50 to 1000 MHz.
Schematic Including Off-Chip
Components
Recommended Board Layout
Pin 1
L3
C5
L2
RF
IN
C1
C4
R1
C3
C2
L1
VDD
RF
OUT
Off-Chip Component Values
Component
C1
C2
C3
C4
C5
L1 *
L2
L3
R1
Value
0.01 µF
0.01 µF
0.01 µF
0.01 µF
0.5 pF
1000 nH
8.2 nH
5.6 nH
523
Ω
Package
0402
0402
0402
0402
0402
1210
0402
0402
0402
* L1 supplied from EPCOS, part number B82422A1102K100.
4
M/A-COM Inc. and its affiliates reserve the right to make changes to
the product(s) or information contained herein without notice.
M/A-COM makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does
M/A-COM assume any liability whatsoever arising out of the use.
or application of any product(s) or information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit
www.macom.com
for additional data sheets and product information.
Broadband CATV Amplifier,
50 - 1000 MHz
MAAMSS0031
V2
Typical Performance Curves -
Enhanced Input Return Loss (IRL) and Gain Flatness
Gain vs. Frequency over Temperature to 1 GHz
16.0
Gain vs. Frequency over Temperature to 3 GHz
20
15.5
15
15.0
10
-40°C
+25°C
+85°C
14.5
5
14.0
-40°C
+25°C
+85°C
0
13.5
-5
13.0
0.0
0.2
0.4
0.6
0.8
1.0
-10
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
Input Return Loss vs. Frequency over Temperature
0
-40°C
+25°C
+85°C
-10
Output Return Loss vs. Frequency over Temperature
0
-40°C
+25°C
+85°C
-10
-20
-20
-30
-30
-40
0.0
0.2
0.4
0.6
0.8
1.0
-40
0.0
0.3
0.5
0.8
1.0
Frequency (GHz)
Frequency (GHz)
Noise Figure vs. Frequency
5.0
4.0
3.0
2.0
1.0
0.0
0.0
0.2
0.4
0.6
0.8
1.0
Frequency (GHz)
5
M/A-COM Inc. and its affiliates reserve the right to make changes to
the product(s) or information contained herein without notice.
M/A-COM makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does
M/A-COM assume any liability whatsoever arising out of the use.
or application of any product(s) or information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit
www.macom.com
for additional data sheets and product information.
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