BGA2802(2011) Ver la hoja de datos (PDF) - NXP Semiconductors.
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BGA2802 Datasheet PDF : 18 Pages
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NXP Semiconductors
BGA2802
MMIC wideband amplifier
8. Application information
Figure 1 shows a typical application circuit for the BGA2802 MMIC. The device is
internally matched to 50 Ω, and therefore does not need any external matching. The value
of the input and output DC blocking capacitors C2 and C3 should not be more than 100 pF
for applications above 100 MHz. However, when the device is operated below 100 MHz,
the capacitor value should be increased.
The 22 nF supply decoupling capacitor C1 should be located as close as possible to the
MMIC.
The PCB top ground plane, connected to pins 2, 4 and 5 must be as close as possible to
the MMIC, preferably also below the MMIC. When using via holes, use multiple via holes
as close as possible to the MMIC.
VS
C1
C2 RF_IN
RF input
VS
RF_OUT C3
RF output
GND1
GND2
Fig 1. Typical application circuit
8.1 Application examples
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from RF
circuit
mixer
wideband
amplifier
to IF circuit
or demodulator
antenna
wideband
LNA amplifier mixer
to IF circuit
or demodulator
oscillator
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Fig 2.
The MMIC is very suitable as IF amplifier in e.g. LNB’s.
The excellent wideband characteristics make it an easy
building block.
Application as IF amplifier
oscillator
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As second amplifier after an LNA, the MMIC offers an
easy matching, low noise solution.
Fig 3. Application as RF amplifier
BGA2802
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 24 February 2011
© NXP B.V. 2011. All rights reserved.
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