RDC GX2S1210 Replaces AD2S1210 for Servo Drives

Rotary digital converters are generally used in servo drives to determine the motor shaft angular position and speed. The resolver is characterized by simple structure, ruggedness and high immunity to interference. In the design of the position detection system, the master control controls the rotation of the motor through the drive circuit, and the signals of the motor‘s rotational speed and angular position are transmitted to the master control for judgment through the rotary digitizer GX2S1210 to form a closed-loop control signal loop, which improves the precision and stability of the control.

The GXSC GX2S1210 is a high-resolution rotary digitizer with a resolution of 10 to 16 bits. By integrating an on-chip programmable sine wave oscillator, it can provide sinusoidal excitation for the resolver. With a maximum tracking rate of up to 3125rps (10-bit resolution), accuracy of 2.5 arc minutes, parallel and serial 10-bit to 16-bit data ports, and a chip rated over the -40°C to +125°C temperature range, the GXSC GX2S12 is ideally suited for industrial designs and high-precision applications.

The GXSC GX2S1210 is equipped with the following features:

1, the use of LQFP48 package, and AD2S1210 chip package pin is fully compatible, saving the alternative test to re-layout board drawing board brought about by the waste of time and resources invested.

2, compatible with DSP and SPI interface, can be used with MCU or TI‘s 335 series DSP, the design process is simple and fast.

3, support for the motor shaft absolute position and speed output, in the servo‘s three-loop (speed, position, current) feedback to solve the signal processing of the two loops, reducing the master control in the three-loop feedback in the resources occupied.

4、Support parallel and serial data ports, the use of parallel ports to ensure the rapid transmission of speed, the use of serial ports to save the data port occupation, R & D can be based on their own needs to design different circuits.