Catalog
Two ADCs, One DAC, Low Power Codec with Audio DSPs
Key Features
• Programmable FastDSP audio processing engine
• Up to 768 kHz sample rate
• Biquad filters, limiters, volume controls, mixing
• 28-bit SigmaDSP audio processing core
• Visually programmable usingSigmaStudio
• Up to 50 MIPS performance
• Low latency, 24-bit ADCs and DAC
• 96 dB SNR (signal through PGA and ADC with A-weighted filter)
• 105 dB combined SNR (signal through DAC and headphone with A-weighted filter)
• Serial port fSYNCfrequency from 8 kHz to 768 kHz
• 5 μs group delay (fS= 768 kHz) analog in to analog out
• 2 single-ended analog inputs, configurable as microphone or line inputs
• 4 digital microphone inputs
• 1 analog differential audio output, configurable as either line output or headphone driver
• PLL supporting any input clock rate from 30 kHz to 27 MHz
• Full-duplex, 4-channel ASRCs
• 16-channel serial audio port supporting I2S, left justified, or
• up to TDM16
• 8 interpolators and 8 decimators with flexible routing
• Power supplies
• Analog AVDD at 1.8 V typical
• Digital I/O IOVDD at 1.1 V to 1.98 V
• Digital DVDD at 0.9 V typical
• Low power (8.030 mW for typical power consumption)
• I2C and SPI control interfaces
• Flexible GPIO
• 42-ball, 0.35 mm pitch, 2.695 mm × 2.320 mm WLCSP
Description
AI
The ADAU1788 is a codec with two inputs and one output that incorporates two digital signal processors (DSPs). The path from the analog input to the DSP core to the analog output is optimized for low latency and is ideal for noise cancelling headsets. With the addition of just a few passive components, the ADAU1788 provides a noise cancelling headphone solution.Note that throughout this data sheet, multifunction pins, such as BCLK_0/MP1, are referred to either by the entire pin name or by a single function of the pin, for example, BCLK_0, when only that function is relevant.ApplicationsNoise cancelling handsets, headsets, and headphonesBluetooth ANC handsets, headsets, and headphonesPersonal navigation devicesDigital still and video camerasMusical instrument effect processorsMultimedia speaker systemsSmartphones