1G with Capture Card + Arbitrary Signal Generator (AWG) Integration Board for Chirp DAS.

GY-DAQA-2510 is a high-performance DAS dedicated data acquisition card with dual-channel 1GSps synchronous trigger sampling and comes with AWG function, which can generate 2-channel swept signal output for chirp pulse modulation. As a chirp DAS dedicated high-speed data acquisition card, it adopts PCIe 3.0 x8 interface to communicate with the host computer, and supports real-time uploading of raw data by adopting large-capacity data cache (DDR4) and high-speed data transmission engine technology, with a data transmission rate of up to 5GB/s. The card adopts dual-channel 14Bit high-speed ADC with a sampling rate of 1GSps, and supports up to DAS data acquisition over 52km. Built-in digital matching filter algorithm, directly upload the pulse compressed DAS signal, or upload the original sampling data for users to demodulate by themselves. The driver has good compatibility, supports multiple versions of windows and Linux, supports cross-platform use, and is convenient for user integration.

Specifications 

• 14bits dual-channel simultaneous real-time sampling 
• 1GSps sampling rate 
• DC-coupled, 50Ω input impedance 
• 1.36Vpp input voltage range, 5-250MHz analog bandwidth 
• Up to 88dBc SFDR 
• Trigger Output Pulses 
• PCIe 3.0 x8 high-speed transfer interface 
• Built-in Pulse Compression Match Filtering Algorithm

Applications 

• Distributed Fiber Optic Sensing DAS 
• High Performance Chirped DAS 
• Fiber Optic Sensing 
• LIDAR 
• Optical Imaging OCT Scanning 
• Radio 
• Telemetry

Detailed parameters

System block diagram

Mechanical dimensions

interface definition

■ PCIe interface: for data transfer and parameterization
■ Ch1: Acquisition channel 1
■ Ch2: Acquisition channel 2|
■ Trig-in: external trigger, 3.3V input
■ Trig-out: internal acquisition trigger output, 3.3V/5V selectable
■ Clk: external synchronization clock