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AT640-XAC Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
AT640-XACSIRF119Yes

AT640-XAC** is a GPS module manufactured by **SiRF Technology**, a leading provider of GPS semiconductor and software solutions.

The AT640-XAC is a GPS module manufactured by SiRF Technology, a leading provider of GPS semiconductor and software solutions.

Key Specifications:

  • GPS Chipset: SiRFstarIV™ GSD4t
  • Frequency: L1 Band (1575.42 MHz)
  • Channels: 48 channels for fast acquisition
  • Sensitivity:
  • Tracking: -162 dBm
  • Acquisition: -148 dBm
  • Accuracy:
  • Position: < 2.5m CEP (50%)
  • Velocity: 0.1 m/s
  • Time-to-First-Fix (TTFF):
  • Cold Start: ~35 sec
  • Warm Start: ~33 sec
  • Hot Start: ~1 sec
  • Update Rate: Up to 10 Hz (configurable)
  • Operating Voltage: 3.3V DC (±5%)
  • Power Consumption:
  • Active: ~60 mA
  • Standby: < 1 mA
  • Interface: UART (TTL level)
  • Antenna Type: Supports passive or active external antenna
  • Operating Temperature: -40°C to +85°C
  • Dimensions: Compact form factor (exact dimensions may vary)

Descriptions & Features:

  • High Performance: Utilizes SiRFstarIV™ architecture for superior signal tracking in weak or obstructed environments.
  • Fast Acquisition: 48-channel architecture ensures rapid satellite acquisition.
  • Low Power: Optimized for battery-powered applications with low standby current.
  • Flexible Configuration: Supports firmware updates and customizable settings via UART.
  • Robust Design: Operates reliably in harsh environments with wide temperature tolerance.
  • Multi-GNSS Support: Some variants may support additional GNSS systems (GLONASS, Galileo, etc.).

This module is commonly used in automotive, industrial, and consumer electronics applications requiring precise GPS tracking.

(Note: Always refer to the official datasheet for the most accurate and updated specifications.)

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