BGA2717 Philips Semiconductors (Acquired by NXP), BGA2717 Datasheet - Page 5

• Manufacturer Part Number: BGA2717
• Description: Mmic Wideband Amplifiersilicon Monolithic Microwave Integrated Circuit (MMIC) Wideband Amplifier With Internal Matching Circuit in a 6-pin SOT363 SMD Plastic Package. Features Internally Matched to 50 Ohm Wide Frequency Range (3.2 GHZ at 3 DB Bandw
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
Grounding and output impedance
If the grounding is not optimal, the gain becomes less flat and the 50
matching to 50
improve the output impedance, at the cost of 1 dB gain and 1 dB output power.
APPLICATION EXAMPLES
The MMIC is very suitable as IF amplifier in e.g. LNB’s.
The excellent wideband characteristics make it an ideal
building block (figure 5).
2004 Feb 02
handbook, halfpage
MMIC wideband amplifier
from RF
RF input
Vs
circuit
Fig.5 Application as IF amplifier.
oscillator
is required, a 12
C1
mixer
Fig.4 Application circuit for better output impedance into 50
C2
wideband
amplifier
RF in
GND1
resistor (R1) can be placed in series with C3, see figure 4. This will significantly
to IF circuit
or demodulator
Vs
MGU438
GND2
RF out
5
As second amplifier after an LNA, the MMIC offers an
easy matching, low noise solution (figure 6).
handbook, halfpage
C3
antenna
output matching becomes worse. If a better output
Fig.6 Application as RF amplifier.
R1
LNA
wideband
amplifier
RF output
oscillator
mixer
Preliminary specification
BGA2717
to IF circuit
or demodulator
MGU439