ES9291
ES9291 is Stereo High-Performance SMART CODEC manufactured by ESS Technology.
features include a Temperature Sensor and Jack Detection.
The new single-ended Power Line Driver with an output drive of up to 125m W @ 32Ω is integrated into the ES9291 providing a very high-performance headphone amplifier and line driver for exceeding all application requirements.
FEATURE
+121d B True DNR per channel -110d B THD+N per channel
Integrated Power Line Driver
Audio Signal Processor (ASP2) 8 pre-programmed built-in Filters High Sample Rates Integrated Analog PLL
Multiple I/O Formats Available Digital Volume Control (I2C/SPI) Digital Gain Control (I2C/SPI)
I2C, SPI, and Hardware interface control
Programmable Microphone Bias Supply Ultra-Low Noise Floor Bandwidth on ADC Integrated low noise reference regulators Low Pin Count Packaging
DESCRIPTION
High-Performance True Dynamic Range and very low distortion
High-Performance Headphone & Line Driver 125m W output power @ 32Ω with external negative supply (per channel) 70m W output power @ 32Ω with internal negative supply (per channel) Presets of digital optimal filters for ADC & DAC ASP2 can be used for custom filters Up to 768k Hz PCM (ADC/DAC) & DSD1024 (DAC) in 64FS mode Minimal reduction in performance as pared with external clock, eliminating the need for a powered oscillator I2S & TDM inputs/outputs are available, TDM daisy chain is supported, DSD & Do P256 (DAC) input, S/PDIF Stereo output -127 to 0d B (ADC) and -126 to +1d B (DAC) in increments of +0.5d B +0 to +42d B in increments of +6d B for creating maximum gain Configured by microcontroller or other I2C/SPI source, or pins through Hardware Mode for simplification of control, Master SPI Interface integration Integrated MICBIAS can be...