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Analog Devices Inc. ADAU1467WBCPZ300RL
- Part No.:
- ADAU1467WBCPZ300RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 88-VFQFN Exposed Pad, CSP
- Datasheet:
-
ADAU1467WBCPZ300RL.pdf
- Description:
- 32BIT SIGMADSP AUDIO 24K/80K
- Quantity:
- Payment:
- Shipping:
Inventory:3,275
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Product details
Overview
ADAU1467WBCPZ300RL from Analog Devices is an automotive-qualified 32-bit SigmaDSP audio processor with a 294.912 MHz core, 80 kWords of data RAM, 24 kWords of program memory, and integrated 8-channel ASRCs supporting up to 192 kHz I/O. It serves as a multirate audio hub in head units and trunk amplifiers, enabling real-time EQ, crossover, and acoustic correction.
For engineers reviewing the ADAU1467WBCPZ300RL datasheet, ADAU1467WBCPZ300RL pinout, ADAU1467WBCPZ300RL application, or ADAU1467WBCPZ300RL equivalent, key selection criteria include its 80 kB data RAM capacity, 139 dB ASRC dynamic range, 48-channel TDM I/O capability, and support for standalone boot via EEPROM - all critical for high-fidelity automotive audio system design.
Technical Context
The ADAU1467WBCPZ300RL implements a restructured SigmaDSP architecture optimized for stream, multirate, and block processing. Its dual-domain clocking includes an integer PLL with fractional outputs and eight stereo ASRCs (139 dB DR), enabling simultaneous operation across up to 15 independent sample rates.
Audio routing is handled by hardware matrices for input/output paths, while serial I/O uses eight configurable SDATAIOx pins assignable to four input and four output ports - each supporting TDM, I²S, or left/right-justified formats at up to 192 kHz with flexible channel counts per data line.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DSP Core Frequency | 294.912 MHz - enables 6144 SIMD instructions/sample at 48 kHz for complex real-time processing |
| Data RAM | 80 kWords - supports large delay lines (up to 1600 ms at 48 kHz) and multi-zone parametric EQ |
| Program Memory | 24 kWords - accommodates extensive signal flow graphs with multiple algorithms and control logic |
| ASRC Channels | 8 stereo (16-channel) - allows asynchronous bridging between disparate audio sources (e.g., Bluetooth, USB, analog ADCs) |
| Digital I/O Capacity | 48 channels at 192 kHz - delivered via 4× input + 4× output serial ports with TDM/PCM/I²S flexibility |
| Supply Integration | On-chip 1.2 V regulator - eliminates external LDO requirement when powered from 3.3 V AVDD/PVDD/IOVDD |
| Temperature Range | −40°C to +105°C - qualified for under-hood and amplifier module deployment in automotive environments |
Pinout & Package
ADAU1467WBCPZ300RL is housed in an 88-lead, 12 mm × 12 mm LFCSP package with a 5.3 mm exposed thermal pad, designed for high-density automotive PCB layouts and efficient heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MCLK | Master Clock Input | Accepts 2.375–36 MHz crystal or oscillator input to drive internal PLL and generate core/system clocks |
| BCLK_IN0–BCLK_IN3 | Input Bit Clock | Four dedicated bit clock inputs for synchronous serial audio reception (TDM/I²S/PCM) |
| LRCLK_IN0–LRCLK_IN3 | Input Frame Sync | Frame sync signals paired with BCLK_INx to define left/right channel boundaries per port |
| SDATAIO0–SDATAIO7 | Configurable Serial Data I/O | Eight bidirectional pins assignable to any input or output serial port; support 2–8 channels per pin in TDM mode |
| SPDIFIN / SPDIFOUT | S/PDIF Interface | Dedicated differential-capable pins for consumer/professional digital audio interconnect up to 192 kHz |
| I²C/SPI (SS, SCLK, MOSI, MISO, SDA, SCL) | Control Interface | Dual slave/master I²C/SPI ports enable host microcontroller programming and peripheral control without CPU intervention |
| MP0–MP25 | Multipurpose Pins | 26 GPIOs usable as digital controls, status indicators, or auxiliary ADC inputs (AUXADC0–AUXADC7) |
| XTALIN / XTALOUT | Clock Oscillator | Connects to external 12.288 MHz (or other standard audio rate) crystal for stable master clock generation |
Key Features
| Feature | Design Value |
|---|---|
| SigmaStudio Graphical Programming | Enables drag-and-drop signal flow development with real-time tuning - reduces firmware iteration time by eliminating low-level coding |
| Standalone Boot Capability | Self-initializes from external SPI EEPROM on power-up - enables fully autonomous operation without host MCU coordination |
| Integrated Temperature Sensor | Monitors die temperature continuously for thermal derating or fan control in amplifier modules without external sensors |
| 8-Channel 10-Bit AUX ADC | Provides direct monitoring of analog control voltages (e.g., volume pots, battery voltage, thermal feedback) at fCORE/6144 sample rate |
| PDM Microphone Interface | Directly decodes pulse density modulation from up to four MEMS microphones - eliminates need for external PDM-to-I²S converters |
Applications
| Automotive Head Unit | Rear Seat Entertainment |
|---|---|
Use Scenario: Central infotainment unit integrating navigation audio, Bluetooth streaming, and AM/FM radio with surround sound synthesis. IC Role / Device Role / Timing Role: Audio hub performing sample rate conversion, loudness compensation, and multi-zone equalization before sending processed streams to amplifier ICs. Use Value: 80 kWords data RAM enables 16-band parametric EQ per zone plus 500 ms delay for lip-sync correction across display and speaker outputs. | Use Scenario: Independent media playback system for rear passengers with HDMI audio input, wireless headphones, and seat vibration feedback. IC Role / Device Role / Timing Role: Multirate bridge converting HDMI ARC, Bluetooth A2DP, and local SD card audio into synchronized 8-channel TDM for distributed seat amplifiers. Use Value: Eight stereo ASRCs allow concurrent 44.1 kHz (Bluetooth), 48 kHz (HDMI), and 96 kHz (SD card) sources without external clock domain isolation. |
| Trunk Amplifier Module | Commercial DSP Mixer |
Use Scenario: High-power Class-D amplifier mounted in vehicle trunk, receiving digital audio from head unit and driving subwoofers and midrange speakers. IC Role / Device Role / Timing Role: Real-time acoustic engine applying dynamic bass boost, cabin gain optimization, and speaker protection limiting before DAC conversion. Use Value: 294.912 MHz core delivers 6144 instructions/sample at 48 kHz - sufficient for 48-channel FIR filtering and real-time THD monitoring per channel. | Use Scenario: Rack-mountable live sound processor for touring venues, accepting mic preamp outputs, stage monitors, and FOH feeds. IC Role / Device Role / Timing Role: Digital mixing console core handling input routing, dynamics processing, and output matrixing with ultra-low latency (<100 µs). Use Value: 48-channel 192 kHz I/O and 139 dB ASRC DR preserve studio-grade fidelity across analog-to-digital and digital-to-analog conversion boundaries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADAU1463WBCPZ300 | 48 kWords data RAM, 16 kWords program memory - 40% less memory than ADAU1467WBCPZ300RL | Suitable for simpler 2–4 zone systems without large delay or multi-band processing requirements | Select when cost sensitivity outweighs need for >64 kB RAM or >12 kWords program space |
| ADAU1452WBCPZ | Lower core frequency (294.912 MHz same), but only 32 kWords data RAM and no PDM microphone interface | Limited to legacy automotive platforms requiring pin compatibility without PDM or extended ASRC count | Choose only for drop-in replacement where existing layout cannot accommodate new features |
Compared with ADAU1463WBCPZ300 and ADAU1452WBCPZ, the ADAU1467WBCPZ300RL provides the highest on-chip memory bandwidth and PDM integration - making it the sole option among the three for full-featured active noise cancellation and multi-microphone beamforming in next-gen head units.
Availability
ADAU1467WBCPZ300RL is available at Aetrix Electronics and suitable for automotive head units, trunk amplifier modules, and commercial DSP mixers requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant performance.
Supply support for ADAU1467WBCPZ300RL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and DSP technology, serving automotive, industrial, and communications markets with precision signal processing solutions.
The ADAU1467WBCPZ300RL belongs to the SigmaDSP® family - engineered specifically for real-time, low-latency audio signal conditioning in demanding automotive and professional audio systems.
FAQ
What is the maximum audio sample rate supported by the ADAU1467WBCPZ300RL?
The ADAU1467WBCPZ300RL supports digital audio I/O at up to 192 kHz across its 48-channel TDM interface, with S/PDIF transmitter and receiver also rated for 192 kHz operation. Its eight stereo ASRCs maintain 139 dB dynamic range across the full 6–192 kHz input/output range, enabling seamless integration of high-resolution audio sources.
Does the ADAU1467WBCPZ300RL include an integrated voltage regulator?
Yes, the ADAU1467WBCPZ300RL integrates an on-chip regulator that generates the 1.2 V DVDD supply from a 3.3 V input, eliminating the need for an external LDO in most designs. This regulator supports up to 800 mA load and maintains regulation across the full −40°C to +105°C operating temperature range required for automotive use.
How many PDM microphone inputs does the ADAU1467WBCPZ300RL support?
The ADAU1467WBCPZ300RL supports four PDM microphone inputs with dedicated decimation filters, allowing direct connection of MEMS microphones without external PDM-to-I²S converters. This capability is confirmed in the Functional Block Diagram and Applications section of the Rev. A datasheet.
Is the ADAU1467WBCPZ300RL pin-compatible with other SigmaDSP devices?
Yes, the ADAU1467WBCPZ300RL is pin and register compatible with the ADAU1463, ADAU1450, ADAU1451, and ADAU1452 families - as explicitly stated in the General Description section of the datasheet. This enables hardware reuse across product tiers while scaling memory and processing capability.
What development tools are required to program the ADAU1467WBCPZ300RL?
Programming the ADAU1467WBCPZ300RL requires Analog Devices' SigmaStudio® graphical development environment, which runs on Windows PCs and connects via USBi or USB-to-I²C/SPI adapters. The tool compiles visual signal flows into native DSP code and supports real-time tuning, memory allocation, and hardware configuration without writing C code.
ADAU1467WBCPZ300RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SigmaDSP®
- Package/Case:
- 88-VFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Sigma
- Interface:
- I2C, SPI
- Clock Rate:
- 294.912MHz
- Non-Volatile Memory:
- ROM (96kB)
- On-Chip RAM:
- 320kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 1.20V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 88-LFCSP (12x12)
ADAU1467WBCPZ300RL FAQ
1.How can I place an order for ADAU1467WBCPZ300RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADAU1467WBCPZ300RL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADAU1467WBCPZ300RL reliable?
The price and inventory of ADAU1467WBCPZ300RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADAU1467WBCPZ300RL is usually 5 days.
3.What payment methods are accepted for ADAU1467WBCPZ300RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADAU1467WBCPZ300RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADAU1467WBCPZ300RL?
ADAU1467WBCPZ300RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADAU1467WBCPZ300RL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADAU1467WBCPZ300RL?
For technical support, including ADAU1467WBCPZ300RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADAU1467WBCPZ300RL requirements.
6.How does Aetrix verify that ADAU1467WBCPZ300RL is sourced from the original manufacturer or authorized distributors?
All ADAU1467WBCPZ300RL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADAU1467WBCPZ300RL meets industry standards.
7.What is the process for return or replacement of ADAU1467WBCPZ300RL?
All ADAU1467WBCPZ300RL units undergo pre-shipment inspection (PSI). If there is an issue with ADAU1467WBCPZ300RL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADAU1467WBCPZ300RL part is unused and in its original packaging.
Return procedure for ADAU1467WBCPZ300RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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