ADAU1787 Series

Four ADC, Two DAC, Low Power Codec with Audio DSPs

Catalog

Four ADC, Two DAC, Low Power Codec with Audio DSPs

Part	Resolution (Bits)	S/N Ratio, ADCs / DACs (db) Typ [custom]	S/N Ratio, ADCs / DACs (db) Typ [custom]	Package / Case	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Supplier Device Package [x]	Supplier Device Package	Supplier Device Package [y]	Dynamic Range, ADCs / DACs (db) Typ [Max]	Dynamic Range, ADCs / DACs (db) Typ [Min]	Number of ADCs / DACs [custom]	Number of ADCs / DACs [custom]	Mounting Type	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Type	Sigma Delta	Data Interface	Operating Temperature [Max]	Operating Temperature [Min]
Analog Devices ADAU1787BCBZRL7	24 b	98 db	105 db	42-UFBGA WLCSP	0.99 V	0.85 V	2.7	42-WLCSP	2.32	105 db	97 db	4	2	Surface Mount	1.98 V	1.7 V	General Purpose		I2C SPI	85 °C	-40 °C
Analog Devices ADAU1787BCBZRL	24 b			42-UFBGA WLCSP	0.99 V	0.85 V	2.7	42-WLCSP	2.32			4	2	Surface Mount	1.98 V	1.7 V	General Purpose		I2C SPI	85 °C	-40 °C

Catalog

Four ADC, Two DAC, Low Power Codec with Audio DSPs

Key Features

• Programmable FastDSP audio processing engineUp to 768 kHz sample rateBiquad filters, limiters, volume controls, mixing

• Up to 768 kHz sample rate

• Biquad filters, limiters, volume controls, mixing

• 28-bit SigmaDSP audio processing coreVisually programmable using SigmaStudioUp to 50 MIPS performance

• Visually programmable using SigmaStudio

• Up to 50 MIPS performance

• Low latency, 24-bit ADCs and DACs96 dB SNR (signal through PGA and ADC with A-weighted filter)105 dB combined SNR (signal through DAC and headphone with A-weighted filter)

• 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 with FastDSP bypass (zero instructions)

• 4 single-ended analog inputs, configurable as microphone or line inputs

• 8 digital microphone inputs

• 2 analog differential audio outputs, 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

• 2, 16-channel serial audio ports supporting I2S, left justified, or up to TDM16

• 8 interpolators and 8 decimators with flexible routing

• Power suppliesAnalog AVDD at 1.8 V typicalDigital I/O IOVDD at 1.1 V to 1.98 VDigital DVDD at 0.9 V typical

• 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 (11.079 mW for typical stereo ANC settings)

• I2C and SPI control interfaces, self boot from I2C EEPROM

• Flexible GPIO

• 42-ball, 0.35 mm pitch, 2.695 mm × 2.320 mm WLCSP

Description

The ADAU1787 is a codec with four inputs and two outputs 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 ADAU1787 provides a complete headset solution.Note that throughout the 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