BGA2802 Philips Semiconductors (Acquired by NXP), BGA2802 Datasheet - Page 4

• Manufacturer Part Number: BGA2802
• Manufacturer: Philips Semiconductors (Acquired by NXP)

NXP Semiconductors
8. Application information
BGA2802
Product data sheet
Fig 2.
from RF
circuit
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
8.1 Application examples
mixer
Figure 1
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.
Fig 1.
oscillator
wideband
amplifier
shows a typical application circuit for the BGA2802 MMIC. The device is
Typical application circuit
to IF circuit
or demodulator
All information provided in this document is subject to legal disclaimers.
001aaf762
RF input
Rev. 1 — 24 February 2011
V
S
C2
C1
RF_IN
Fig 3.
GND1
antenna
As second amplifier after an LNA, the MMIC offers an
easy matching, low noise solution.
Application as RF amplifier
V
S
GND2
LNA
RF_OUT
wideband
amplifier
C3
MMIC wideband amplifier
RF output
001aaf761
mixer
oscillator
BGA2802
© NXP B.V. 2011. All rights reserved.
to IF circuit
or demodulator
001aaf763
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