Description
GPS receiver RF Front-end Miniature GPS receiver RF Front-end Data Reference DS4056 DS4374
LCS12/4
Fig.1 Pinout
1
DW9255
GPS Antenna
SAW 1st IF Filter LNA GP2010/15 RF Front End DW9255
Clock Crystal GP2021 12 channel Correlator + Support Functions
DATA BUS ADDRESS BUS
TO PROCESSOR
TCXO
2 x Serial Communications Ports (Programmable UARTS)
Fig.2 DW9255 used with GPS chipset
ELECTRICAL CHARACTERISTICS (Typ.@ 25°C)
Parameter Centre Frequency 1dB Bandwidth Insertion Loss Amplitude Ripple
Features
- INPUT +
s Insertion Loss of 17dB ±1dB (typical) s 1dB Bandwidth 1.9MHz (typical) s Passband Ripple 0.8dB (typical) s Low Profile Ceramic Surface Mount Package s Operating Temperature Range -40° to +85°C
GND 3
2
INPUT -
s Centre Frequency of 35.42MHz
1 12 GND
GND
4
11
GND
DW9255.
DW9255 Datasheet
