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ATR0601

ATMEL Corporation
Part Number ATR0601
Manufacturer ATMEL Corporation
Description GPS FRONT-END
Published Nov 6, 2006
Detailed Description www.DataSheet4U.com Features • • • • • • • • Very Low Power Design (40 mW) Single IF Architecture Excellent Noise Perfo...
Datasheet PDF File ATR0601 PDF File

ATR0601
ATR0601

Overview
www.
DataSheet4U.
com Features • • • • • • • • Very Low Power Design (40 mW) Single IF Architecture Excellent Noise Performance 1.
5-bit ADC On Chip Small QFN Package (4 mm × 4 mm, 24 pins) Highly integrated, Few External Components Advanced BiCMOS Technology (UHF6s) Non ESD Sensitive Device GPS Front-end IC ATR0601 Preliminary 1.
Description The ATR0601 is a single IF GPS front-end IC, designed to meet the requirements of mobile and automotive applications.
Excellent RF performance combined with low noise figure enables high quality GPS solutions and it's very low power consumption fits perfectly to portable devices.
Featuring a balanced XTO and a fully integrated balanced frequency synthesizer, only few external components are required.
The ATR0601 offers a complete autonomous mode, utilizing the on chip AGC in closed loop operation, to set the gain of the IF VGA.
Alternatively, in combination with the baseband processor ATR0621 the optimum gain of the IF VGA can be computed and set by software, using the digital SDI interface.
Figure 1-1.
VCC Block Diagram VDIG NBPI AGCO BPI EGC VCC BP NBP PUXTO PURF PMSS Logic 1 SDI A RF NRF A D VCO PLL XTO NXTO XTO X NX D SL SH SC GND TEST MO Rev.
4866A–GPS–08/05 DataSheet 4 U .
com www.
DataSheet4U.
com 2.
Pin Configuration Figure 2-1.
Pinning QFN24 SC SH SL SDI EGC VCC 24 23 22 21 20 19 VDIG AGCO NXTO NX X XTO 1 2 3 4 5 6 18 17 16 15 14 13 PURF PUXTO NBPI BPI NBP BP Paddle GND 7 8 9 10 11 12 VCC MO TEST NRF RF NC Table 2-1.
Pin Paddle 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Note: Pin Description Symbol GND VDIG AGCO NXTO NX X XTO VCC MO TEST NRF RF NC BP NBP BPI NBPI PUXTO PURF VCC EGC SDI SL SH SC Type(1) S S A_I/O A_I A_O A_O A_I S A_O A_I A_I A_I – A_O A_O A_I A_I D_I D_I S D_I D_I D_O D_O D_O Function Common ground Digital supply AGC: gain control voltage output/corner frequency determination XTO interface (optional: TCXO input) XTO interface XTO interface XTO interface (optional: TCXO...


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