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ATMEL Corporation |
www.DataSheet4U.com
Features
• 16-channel GPS Correlator
– 8192 Search Bins with GPS Acquisition Accelerator
– Accuracy: 2.5m CEP (2D, Stand Alone)
– Time to First Fix: 34s (Cold Start)
– Acquisition Sensitivity: –142 dBm (With External LNA)
– Tracking Sensitivity: –158 dBm (With External LNA)
• Utilizes the ARM7TDMI® ARM® Thumb® Processor Core
– High-performance 32-bit RISC Architecture
– Embedded ICE (In-Circuit Emulation)
• 128 Kbytes Internal RAM
• 384 Kbytes Internal ROM with u-blox GPS Firmware SuperSense™
• 1.5-bit ADC On-chip
• Single IF Architecture
• 2 External Interrupts
• 24 User-programmable I/O Lines
• 1 USB Device Port
– Universal Serial Bus (USB) 2.0 Full-speed Device
– Embedded USB V2.0 Full-speed Transceiver
• 2 USARTs
• Master/Slave SPI Interface
– 4 External Slave Chip Selects
• Programmable Watchdog Timer
• Advanced Power Management Controller (APMC)
– Geared Master Clock to Reduce Power Consumption
– Sleep State with Disabled Master Clock
– Hibernate State with 32.768 kHz Master Clock
• Real Time Clock (RTC)
• 1.8V to 3.3V User-definable IO Voltage for Several GPIOs with 5V Tolerance
• 4 KBytes of Battery Backup Memory
• 7 mm × 10 mm 96 Pin BGA Package, 0.8 mm Pitch, Pb-free, RoHS-compliant
Benefits
• Fully Integrated Design With Low BOM
• No External Flash Memory Required
• Supports NMEA, UBX Binary and RTCM Protocol
• Supports SBAS (WAAS, EGNOS, MSAS)
• Up to 4Hz Update Rate
• Supports A-GPS (Aiding)
• Excellent Noise Performance
ANTARIS4
Single-chip
GPS Receiver
SuperSense
ATR0635
Preliminary
4928B–GPS–04/06
www.DataSheet4U.com
1. Description
The ATR0635 is a low-power, single-chip GPS receiver, especially designed to meet the
requirements of mobile applications. It is based on Atmel’s ANTARIS™4 technology and inte-
grates an RF front-end, filtering, and a baseband processor in a single, tiny 7 mm × 10 mm
96 pin BGA package. Providing excellent RF performance with low noise figure and low power
consumption.
Due to the fully integrated design, just an RF SAW filter, a GPS TCXO and blocking capacitors
are required to realize a stand-alone GPS functionality.
The ATR0635 includes a complete GPS firmware, licensed from u-blox AG, which performs the
GPS operation, including tracking, acquisition, navigation and position data output. For normal
PVT (Position/Velocity/Time) applications, there is no need for external Flash- or ROM-memory.
The firmware supports the possibility to store the configuration settings in an optional external
EEPROM.
Due to the integrated ARM7TDMI processor and an intelligent radio architecture, the ATR0635
operates in a complete autonomous mode, utilizing on chip AGC in closed loop operation.
For maximum performance, we recommend to use the ATR0635 together with a low noise
amplifier (e.g. ATR0610).
The ATR0635 supports assisted GPS.
2 ATR0635 [Preliminary]
4928B–GPS–04/06
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