1.5.2
Remote keyless entry, RF generic front-end with dedicated antenna for reception and transmission
Application diagram
antenna
receiver
filter
LNA
filter
mixer
LOW
FREQUENCY
CHIP SET
buffer
VCO
antenna
transmitter
filter
PA
driver
VCO
LOW
FREQUENCY
CHIP SET
bra851
Recommended products
Function
Product
RF bipolar
transistor
LNA
MMIC
Wideband
transistor
Package
Type
Type
Type
Function
Mixer
Product
RF bipolar
transistor
Product
RF bipolar
transistor
Wideband
transistor
Wideband
transistor
Package
Package
Package
Type
Type
Type
Low-noise
wideband ampl.
SiGe:C MMIC
Package
Package
Function
Buffer
Function
Driver
Product
RF bipolar
transistor
MMIC
Wideband
transistor
Gen-purp
wideband amp
Function
Power
amplifier
Product
RF bipolar
transistor
MMIC
Function
VCO
Product
Varicap
diodes
VCO varicap
diodes
Wideband
transistor
General-purpose
wideband
amplifier
^ AEC-Q101 qualified (some limitations apply)
Product highlight:
Varicap diodes as VCO
Varicap diodes are principally used as voltage varicap capacitors,
with their diode function a secondary option. These devices are ideal
for voltage controlled oscillators (VCOs) in ISM band applications.
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Features
Excellent linearity
Excellent matching
Very low series resistance
High capacitance ratio
32
NXP Semiconductors RF Manual 16
th
edition
PHILIPS [ NXP SEMICONDUCTORS ]
