ADAU1850
Three ADCs, One DAC, Low Power Codec with Audio/FastDSP
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Features
- Programmable FastDSP audio processing engine
- Up to 768 kHz sample rate
- Biquad filters, limiters, volume controls, mixing
- Low latency, 24-bit ADCs and DAC
- 106 dB SNR (signal through ADC with A-weighted filter)
- 110 dB combined SNR (signal through DAC and headphone with A-weighted filter)
- Serial port sample rates from 8 kHz to 768 kHz
- 5 μs analog-to-analog group delay
- Programmable, double precision MAC engine for 13-stage equalizer
- 3 analog inputs (2 differential and 1 single-ended), configurable as microphone or line inputs
- Analog differential audio output, configurable as either line output or headphone driver
- PLL supporting any input clock rate from 30 kHz to 27 MHz
- 1-channel ASRCI, 3-channel ASRCO
- Serial audio ports supporting I2S, left justified, or up to 16-channel TDM (TDM16)
- 2 interpolators and 4 decimators with flexible routing
- Power supplies
- Analog AVDD at 1.8 V
- Digital I/O IOVDD at 1.8 V to 3.3 V
- Headphone HPVDD at 1.8 V
- Headphone HPVDD_L at 1.2 V to1.8 V
- Control/communication interfaces
- I2C, SPI, or UART
- 28-ball, 0.4 mm pitch, 2.957 mm × 1.757 mm WLCSP
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The ADAU1850 is a codec with three inputs and one output that incorporates one digital signal processor. The path from the analog input to the DSP core to the analog output is optimized for low latency and is ideal for noise canceling earphones. With the addition of a few passive components, the ADAU1850 provides a complete headset solution.
The ADAU1850 is provided in a small, 28-ball, 2.957 mm × 1.757 mm wafer level chip scale package (WLCSP).
APPLICATIONS
- Noise canceling handsets, headsets, and headphones
- Bluetooth active noise canceling (ANC) handsets, headsets, and headphones
- Personal navigation devices
- Digital still and video cameras
- Musical instrument effect processors
- Multimedia speaker systems
- Smartphones
Ask a Question
Submit your question below and we will return the best answer from ADI’s knowledge database:
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Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support Page
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ADAU1850
Documentation
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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADAU1850BCBZRL |
28-ball WLCSP (2.957mm x 1.757mm x 0.5mm)
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- ADAU1850BCBZRL
- Pin/Package Drawing
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28-ball WLCSP (2.957mm x 1.757mm x 0.5mm)
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Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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SamacSys
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Product Lifecycle
PCN
Feb 7, 2022
- 21_0236
ADAU1850 Addition of an Alternate Test Site + Die and Data Sheet Revision
Filter by Model
Part Models
Product Lifecycle
PCN
Feb 7, 2022
- 21_0236
ADAU1850 Addition of an Alternate Test Site + Die and Data Sheet Revision
Software & Part Ecosystem
Software Module
Lark SDK Setup
Lark SDK is embedded firmware package, including driver for all hardware modules of ADAU1860 and ADAU1850. It is delivered in source code format and also featured by log support, friendly high level APIs, etc.
Lark Studio
Lark Studio is a standalone Windows Graphical User Interface (GUI) tool for programing and tuning software on the Lark/Lark-Lite/SSM6515. Lark Studio includes intuitively reading/writing control registers, and providing a drag and drop interface for user to design FastDSP schematic, which can be downloaded to the target directly. It also supports safe loading, generating C source files, calculating tables of filter coefficients and visualizing filter magnitude & phase response. It also supports EQ configuration, along with calculating tables of filter coefficients and visualizing filter magnitude & phase response, generating C source files, and download to the target.
Looking for Evaluation Software? You can find it here
Evaluation Kits 1
EVAL-ADAU1850
Evaluating the ADAU1850 Three ADCs, One DAC, Low Power Codec with Audio/Fast DSP
Product Detail
The user guide explains the design and setup of the EVAL-ADAU1850EBZ evaluation board.
This evaluation board provides access to all analog and digital inputs/outputs on the ADAU1850. The ADAU1850 core is controlled by Analog Devices, Inc., Lark Studio™ software, which interfaces to the EVAL-ADAU1850EBZ via a USB connection. The software development kit (SDK) is also provided by Analog Devices for code development.
The EVAL-ADAU1850EBZ can be powered by the USB bus or by a single 3.8 V to 5 V supply. These supply options are regulated to the voltages required on the EVAL-ADAU1850EBZ. The printed circuit board (PCB) is a 4-layer design, with a ground plane and a power plane on the inner layers. The EVAL-ADAU1850EBZ contains connectors for external microphones and speakers. The master clock can be generated through the internal RC oscillator in the absence of an external clock source. It also can be provided externally or by the on-board 24.576 MHz oscillator.
