High-performance RDC GX2S1210 (AD2S1210) is widely used in servo systems, robotics, and automotive steering.

A resolver is a sensor used to convert rotational position or angle into electrical signals, and a resolver-digital converter converts these signals into digital outputs corresponding to the angle and/or speed of the rotating shaft. In applications such as servo systems, robots, and automotive steering systems that require precise measurement of the position of rotating parts, a good resolver-digital converter chip is critical.

The GX2S1210 high-performance rotary to digital converter chip can convert the analog signal of rotary output to digital signal and provide high-precision angle and speed information, which solves the problems of difficult to determine the rotor position of traditional brushless motors and low sampling rate of rotary speed, and can simultaneously meet the needs of modern servo motors, automotive motion detection, electric power steering, etc., for high conversion speed and high conversion accuracy, and Breaking the status quo of rotary digital converter monopolized by foreign large manufacturers, vigorously promote the development of related industries!

The GX2S1210 is a 10-bit to 16-bit resolution rotary digitizer with an integrated on-chip programmable sinusoidal oscillator to provide sinusoidal excitation for the rotary converter. The converter‘s sine and cosine inputs allow for signals of 3.15Vp-p ±27% and frequencies in the range of 2kHz to 20kHz.A Type II servo loop is used to track the input signals and convert the information from the sine and cosine inputs into digital quantities corresponding to the input angles and speeds. The maximum tracking rate is 3125rps.

GX2S1210 product features are described:

1. Rate Tracking ConversionThe Type II tracking loop is capable of continuously outputting position data with no conversion delay. It also suppresses noise and provides harmonic distortion tolerance for reference and input signals.

2. system fault detection. The fault detection circuitry detects loss of rotary signal, out-of-range input signal, input signal mismatch, or loss of position tracking. Each fault detection threshold can be individually programmed by the user for optimization for a specific application.

3. Input signal range. Sine and cosine inputs support differential input voltages of 3.15Vp-p ±27%.

4. programmable excitation frequency. The excitation frequency can be easily set to multiple standard frequencies in the 2kHz to 20kHz range.

5. 3 Format Position Data. 10 to 16 bits of absolute angular position data can be accessed through the 16-bit parallel port or 4-wire serial interface. Incremental encoder emulation is available in standard A-quad-B format with direction output.

6. Digital speed output. 10-bit to 16-bit signed digital quantities of speed can be accessed through the 16-bit parallel port or 4-wire serial interface.