AN3012 Datasheet, PDF (1/4 Pages) M/A-COM Technology Solutions, Inc. – Electrical Characterization of MAAMSS0031 CATV Amplifier at +5 Volts and Reduced Gain

Application Note
AN3012
Electrical Characterization of MAAMSS0031
CATV Amplifier at +5 Volts and Reduced Gain
Abstract
The MAAMSS0031 CATV amplifier is a GaAs MMIC
which exhibits low noise and high linearity. It is
ideally suited for set top boxes, home gateways, and
other broadband internet based appliances.
This amplifier is a monolithic single stage design in
a 75 ohm input/output impedance environment. It is
designed to have a reduced number of external
matching components. The MAAMSS0031 can also
be used for +8 volt operation as shown in the
datasheet.
Introduction
The purpose of this application note is to present the
typical performance of the MAAMSS0031 amplifier
when it is operated at +5 volts. It is intended as an
aid to engineers for the implementation of the
MAAMSS0031 in set top box applications at 5 volts.
An enhanced return loss circuit similar to that shown
on page 4 of the data sheet is used for the small
signal measurements.
Functional Schematic
GND
Rev. V2
Pin 1
RF_IN GND RFOUT
Electrical Specifications: T_A = 25°C, Freq: 50 - 1000 MHz, V_DD = +5 Volts, Z₀ = 75 Ohms
Parameter
Gain
Gain Flatness
Noise Figure
Input Return Loss
Output Return Loss
Output IP3
Composite Triple Beat, CTB
Composite Second Order, CSO
P1dB
I_DD
Test Conditions
6 MHz Spacing, -10 dBm output per tone
132 channels, +23 dBmV/channel at the output.
132 channels, +23 dBmV/channel at the output.
+ 5 Volts
Units
dB
dB
dB
dB
dB
dBm
dBc
dBc
dBm
mA
Min.
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—
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—
—
—
—
Typ.
9.7
0.5
2.7
8
9
29
-75
-66
18
100
Max.
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1
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