Professional IC Distribution & Technical 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.)