PROLIFIC PL7211
The PL7211 is a highly integrated power/energy monitoring Analog Front End (AFE) IC that measures electricity-related data for power usage measurement applications. It has built-in 8-channel ADC and a programmable DSP which can adapt to different applications such as metering, power protection and Master/Slave. The PL7211 has a built-in MTP that stores the chip configuration, DSP code and calibration data.FEATURES
● 2-Channel 24-bit sigma-delta ADC● Internal 3.3V/5V to 1.8V cap-less LDO
● Internal 1.2V cap-less VREF (w/ 0.1% accuracy/full temp. range after trim)
● Built-in 1X ~ 32X PGA (w/ 0.1% accuracy/full temp. range after calibration)
● Internal 16MHz RC OSC (w/ 0.2% accuracy/full temp. range after trim)
● Internal VDT/POR and temperature sensor
● Built-in FIR filter for each individual channel
● Channel phase alignment
● Programmable 48-bit DSP engine with - 512 x 32 program space - 128 x 48 data space - 64 x 48 output buffer - Built-in fix point to float-point converter
● 8KB OTP with 2 banks DSP code, DSP CFG and SYS CFG
● Supports I2C/SPI/UART (UART supports auto baud-rate mode)
● Supports 38KHz IR carrier removed
● Supports up to 9 GPIOs which can be directly controlled by DSP
● 5V tolerance I/O
● Small package size: 4x4 QFN24
GENERAL DESCRIPTION
It provides SPI slave interface and can be used for calibration and programming data or DSP code. MCU can be accessed through SPI interface.