Rev. 4536F–GPS–10/03
GPS
Front-end IC
ATR0600
Preliminary
Features
Very Low Power Design (≈ 50 mW)
Single IF Concept
2-bit ADC on Chip
Small QFN Package (28 Pins)
Highly Integrated, Few External Components
UHF6 Technology
Electrostatic sensitive device.
Observe precautions for handling.
Description
With the growing importance of mobile communication, location awareness is a key
feature for more and more products and services. Due to its small size and minimal
power consumption, the GPS front-end IC ATR0600 is an ideal solution for mobile
applications and navigation systems.
Figure 1. Block Diagram
RFIN
LNA
SAW
Ant
PFD XTO
LC-BP
RFNIN
96.76 MHz
1575.42 MHz
Dig. IF at 4.35 MHz
VCO
1478.6
VS3 VDIG
Power
control
REF
NBPI
VGA amp
BP-Filter
OR
64
1
1
4
GC
AGCO
SC 23.104 MHz
SIGL
SIGH
P1
VS1 VS2 VS5
23.104 MHz
P2
MHz
BPI
BP NBP
XTO NXTOVS7 X NX