Benchmark AD9253, four-channel 14-bit analog-to-digital converter GX9253 applied to fiber optic networks

Fiber optic network consists of three main parts: light source, fiber optic transmission medium and optical receiver, the light source produces a light signal through the fiber optic transmission medium in the form of pulse propagation. In the fiber optic transmission medium, the optical signal is continuously transmitted through internal total internal reflection until it reaches its destination, where the optical receiver converts the received optical signal into an electrical signal and decodes it for processing.

The GXSC analog-to-digital converter GX9253‘s high sampling rate, high resolution, low noise and low power consumption enable it to play an important role in the transmitting end of the fiber optic network, the receiving end as well as the monitoring and management of the fiber optic network, which improves the signal processing accuracy and transmission performance of the fiber optic network. The device is a benchmark replacement for the AD9253, which can reduce the development cost of the whole program, and GXSC provides professional technical support and stable supply channels.

GX9253 is a 4-channel, 14-bit, 80/100/110MSps analog-to-digital converter, high sampling rate with outstanding dynamic performance and low-power characteristics, the chip has a built-in sample-and-hold circuitry, which is specially designed for low-cost, low-power, small size and products. The chip uses a single 1.8V power supply and LVPECL/CMOS/LVDS-compatible sample-rate clock signals in order to fully utilize its operating performance. For most applications, no external reference power source or driver device is required.

The analog-to-digital converter automatically multiplies the sample rate clock to obtain the proper LVDS serial data rate. It provides a data clock output to capture data at the output and a frame clock output to signal a new output byte. It also supports separate power save states for each channel; typical power consumption is 2.2mW when all channels are disabled.

GX9253 key features:

- Low power consumption: 110mW per channel (110MSps)

- Signal-to-Noise Ratio (SNR): 73dB

- Differential nonlinearity (DNL): ±0.75LSB (typical)

- Integral Nonlinearity (INL): ±2.5LSB (typical)

- Serial LVDS, 2VP-P Input Voltage Range

- QFN-48 package 7mm x 7mm