GPS Front-End
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Features
• • • • • •
Very Low Power Design (≈ 50 mW) Single IF Concept 2-bit ADC on Chip Small QFN ...
Description
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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.
GPS Front-end IC ATR0600
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
96.76 MHz 1575.42 MHz LC-BP VS3 LNA
RFIN
Preliminary
Ant
BP NBP
BPI
NBPI
REF
VDIG Dig. IF at 4.35 MHz SIGH
SAW
RFNIN VGA amp BP-Filter
SIGL SC 23.104 MHz OR AGCO
VCO
1478.6 MHz
64 1
1 4
Power control GC PFD XTO P2
VS1
VS2
VS5
VS7
X
XTO
NXTO NX P1
23.104 MHz
Rev. 4536F–GPS–10/03
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Pin Configuration
Figure 2. Pinning QFN28
n.c. RFNIN RFIN VS3 P1 P2 n.c.
BP NBP BPI NBPI VS1 n.c. n.c.
14 13 12 11 10 9 8 15 16 17 18 19 20 21 22 23 24 25 26 27 28
GC VS2 REF SIGL SIGH VDIG SC
7 6 5 4 3 2 1
X VS5 XTO NXTO VS7 NX AGCO
Pin Description
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Symbol AGCO NX VS7 NXTO XTO VS5 X n.c. P2 P1 VS3 RFIN RFNIN n.c. BP NBP BPI NBPI VS1 n.c. n.c. GC VS2 REF SIGL SIGH VDIG SC Type O OB P IB IB P OB – I I P IB IB – IB IB IB IB P – – I P O O O P O Function Signal level ...
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