LX3301A

Preliminary Datasheet LX3301A Inductive Sensor Interface IC with Embedded MCU AA Description The LX3301A is a highly integrated programmable data conversion IC designed for interfacing to and managing of inductive sensors. The device includes an integrated oscillator circuit for driving the primary coil of an inductive sensor, along with two independent analog conversion paths for conditioning, converting, and processing of sine and cosine analog signals from the secondary coils of the sensor. Each path includes an EMI filter, demodulator, anti-alias filter, programmable amplifier, and a 13-bit sigma-delta analog-to-digital converter. Each analog signal path includes digital calibration capability which allows the complete analog path (including the external sensors) to be calibrated during the system manufacturing process. The calibration information is written to internal EEPROM resulting in improved production yields, and in-line system upgrades. The LX3301A integrates a 32-bit RISC processor which provides programmable digital filtering and signal processing functions. The MCU resources include 12 kilo bytes of program memory, 128 bytes of SRAM, and 32 bytes of user programmable EEPROM. The program memory is available as mask-programmed ROM. System interfaces include programmable PWM output and a 12-bit digital-to-analog converter analog buffed output. The LX3301A is offered in TSSOP14, the device is specified over a temperature range of -40°C to +125°C making it suitabl...