The intelligent sweeping machine based on LiDAR can use analog-to-digital converter GX08D1000/GX08D1500 to replace ADC08D1000/ADC08D1500

With the rapid expansion of the smart home appliance market, laser radar is less affected by ambient light, has higher ranging accuracy, and does not have cumulative errors, greatly improving the machine‘s three-dimensional environmental perception ability and helping it achieve multiple functions such as mapping, positioning, and obstacle avoidance.

The core role of analog-to-digital converters in laser radar applications is to accurately convert the analog voltage signal output by the operational amplifier, which represents the strength of the echo signal, into a digital signal for subsequent processing (such as time extraction and distance calculation) by digital processors (such as MCU, FPGA, DSP). The sampling frequency of the analog-to-digital converter directly determines the ranging accuracy of the laser radar.

The GXSC analog-to-digital converter GX08D1000/GX08D1500 maintains the same performance as similar foreign products while also considering lower power consumption, providing a better solution for laser radar systems. GX08D1000/GX08D1500 has outstanding dynamic performance and low power consumption characteristics. Using a 1.9V power supply, SC1282 can generate 7.37 significant bits (EN0B) and provide a 10-18 bit error rate (CER) at an input signal of 103MHz and a sampling rate of 1.5GSPS. The typical power consumption of SC1281 in Non demux mode at 1.5GSPS is 1.98W. At an input signal of 103MHz and a sampling rate of 1.0GSPS, SC1281 can generate 7.44 significant bits (ENOB) and a typical power consumption of 1.17W in Non demux mode at 1.0GSPS.

For the convenience of data capture, each channel of GX08D1000/GX08D1500 has its own independent DDR data clock DCLKI and DCLKO, and SC1281 supports 1:2 Demux mode. In this mode, the second set of 8-bit LVDS buses for each channel is activated, and the output data rate becomes half of the clock rate. The output format can be configured as offset binary (default) or binary complement, and the low voltage differential signaling (LVDS) digital output is compatible with IEEE 1596.3-1996, with adjustable common mode voltage of 0.8V or 1.2V.

GX08D1000/GX08D1500 Main Performance:

• Excellent precision and dynamic performance

Low power consumption, further reducing at lower sampling rates

Internal termination, buffering, differential analog input

SPI serial control interface

• Output test mode

1:1 Non demux or 1:2 Demux LVDS output

The automatic stepping feature of multi chip systems

Single channel 1.9V ± 0.1V power supply