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Analog Devices Inc. ADAU1466WBCPZ300RL
- Part No.:
- ADAU1466WBCPZ300RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 72-VFQFN Exposed Pad, CSP
- Datasheet:
-
ADAU1466WBCPZ300RL.pdf
- Description:
- 32BIT SIGMADSP AUDIO 24K/80K
- Quantity:
- Payment:
- Shipping:
Inventory:1,820
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Product details
Overview
ADAU1466WBCPZ300RL from Analog Devices is a fully programmable, automotive-qualified SigmaDSP audio processor featuring a 294.912 MHz 32-bit DSP core, 80 kWords of data RAM, 24 kWords of program memory, and support for up to 48-channel 192 kHz digital I/O with TDM/I²S/PCM formats. It serves as a high-performance audio hub in vehicle head units and distributed amplifier systems.
For engineers reviewing the ADAU1466WBCPZ300RL datasheet, ADAU1466WBCPZ300RL pinout, ADAU1466WBCPZ300RL application, or ADAU1466WBCPZ300RL equivalent, key selection considerations include its 80 kB data RAM capacity, dual I²C/SPI control interfaces (slave + master), eight stereo ASRCs with 139 dB dynamic range, integrated 1.2 V regulator, and −40°C to +105°C automotive temperature rating.
Technical Context
The ADAU1466WBCPZ300RL implements a restructured SigmaDSP architecture optimized for stream, multirate, and block processing-enabling efficient execution of complex audio algorithms such as multi-band EQ, crossover, and active noise cancellation. Its hardware includes independent slave and master I²C/SPI ports, self-boot capability from serial EEPROM, and dedicated PDM decimation filters for four MEMS microphones.
Core timing is governed by an integer PLL with flexible fractional outputs and a crystal oscillator, supporting simultaneous generation of up to 15 sample rates. Audio routing is managed via hardware matrices for input/output domains, with ASRCs providing sample rate conversion between asynchronous clock domains at up to 192 kHz I/O.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DSP Core Frequency | 294.912 MHz - Enables up to 6144 SIMD instructions per sample at 48 kHz, sufficient for real-time 16-channel processing with 10-band EQ per channel. |
| Data RAM | 80 kWords - Supports large delay pools (up to 1600 ms at 48 kHz) and complex FIR/IIR filter banks without external memory. |
| Program Memory | 24 kWords - Accommodates extensive signal flow configurations in SigmaStudio, including multirate routing and ASRC control logic. |
| Audio I/O Channels | 48-channel, 32-bit TDM - Allows direct connection to multiple ADC/DACs or amplifiers in trunk or rear-seat entertainment systems. |
| ASRC Count & Performance | 8 stereo (16-channel) ASRCs, 139 dB dynamic range - Enables seamless integration of disparate audio sources (e.g., Bluetooth, tuner, USB) operating at different sample rates. |
| Operating Temperature | −40°C to +105°C - Qualified for under-hood or amplifier module placement in automotive environments. |
| Supply Regulation | On-chip 1.2 V regulator from 3.3 V AVDD - Eliminates need for external core LDO, reducing BOM count and PCB area in space-constrained head unit designs. |
Pinout & Package
72-lead, 10 mm × 10 mm LFCSP package with 5.3 mm exposed thermal pad; RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MCLK | Master Clock Input | Accepts 2.375–36 MHz crystal or external clock; feeds PLL for all internal clock domain generation. |
| BCLK_IN0–BCLK_IN3 | Bit Clock Inputs (×4) | Synchronize incoming serial audio data on four independent input ports; support TDM/I²S/PCM formats up to 192 kHz. |
| SDATA_OUT0–SDATA_OUT3 | Serial Data Outputs (×4) | Drive 48-channel TDM output streams; configurable for left/right justified, I²S, or PCM with programmable word length. |
| SPDIFIN / SPDIFOUT | S/PDIF Receiver / Transmitter | Bi-directional S/PDIF interface supporting 18–192 kHz sample rates; includes jitter reduction and format detection. |
| MP0–MP13 | Multipurpose Pins (×14) | Configurable as GPIO, interrupt inputs, PWM outputs, or auxiliary control signals; support 24.576 MHz switching rate. |
| AUXADC0–AUXADC5 | Auxiliary ADC Inputs (×6) | 10-bit SAR converter sampling at fCORE/6144 (~48 kHz max); used for sensor monitoring or analog control voltage reading. |
| I²C/SPI Slave/Master | Control Interface Pins | Dedicated SDA/SCL/MOSI/MISO/SS pins for dual-role control-enables host MCU programming and peripheral management without external logic. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Qualification | Qualified per AEC-Q100 Grade 2 (−40°C to +105°C), enabling use in infotainment ECUs and amplifier modules without derating. |
| SigmaStudio Integration | Graphical drag-and-drop development environment with real-time tuning, hardware-accelerated library blocks, and automatic code generation-reducing firmware development time by >50% vs. hand-coded DSP. |
| Self-Boot Capability | Loads configuration and program from external SPI EEPROM at power-up, enabling standalone operation without host MCU intervention. |
| Flexible Clock Architecture | Integer PLL + multiple clock generators produce up to 15 independent audio clocks simultaneously-eliminating need for external clock synthesizers in multirate systems. |
| Digital Microphone Support | Four dedicated PDM input channels with hardware decimation filters-directly interfaces MEMS microphones without external converters, simplifying array microphone designs. |
Applications
| Automotive Head Unit | Distributed Amplifier System |
|---|---|
Use Scenario: Central infotainment processor handling navigation audio, Bluetooth streaming, AM/FM tuner, and voice assistant input. IC Role / Device Role / Timing Role: Audio hub managing asynchronous sample rate conversion between Bluetooth (44.1 kHz), tuner (48 kHz), and USB (96 kHz) sources before mixing and output to DACs. Use Value: Eight stereo ASRCs and 48-channel TDM I/O enable full consolidation of audio sources and sinks on a single chip, reducing interconnect complexity and latency. | Use Scenario: High-power amplifier module receiving processed audio from head unit over TDM bus and driving multiple speaker zones. IC Role / Device Role / Timing Role: Real-time audio post-processor applying channel-specific EQ, time alignment, and limiting prior to Class-D amplifier stages. Use Value: 294.912 MHz core and 80 kB RAM allow execution of 16-channel 10-band parametric EQ + 32-tap FIR crossovers with <100 μs group delay. |
| Rear Seat Entertainment | Trunk-Mounted Audio Processor |
Use Scenario: Seat-back display system delivering independent audio streams to headphones while sharing main head unit resources. IC Role / Device Role / Timing Role: Secondary audio processor receiving time-sliced TDM data and performing headphone-specific virtualization and volume leveling. Use Value: Dual I²C/SPI interfaces permit coordinated control with head unit MCU while maintaining independent audio path timing integrity. | Use Scenario: Compact audio processing node mounted near subwoofer amplifier, accepting analog line-in and digital optical input. IC Role / Device Role / Timing Role: Hybrid signal processor converting analog aux input to digital domain via external ADC, then applying bass enhancement and phase correction before S/PDIF output. Use Value: Integrated 6-channel 10-bit AUX ADC and S/PDIF transceiver eliminate two ICs, reducing solution size and cost in space-constrained trunk enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADAU1462WBCPZ300 | 48 kWords data RAM, 16 kWords program memory, same 294.912 MHz core | Limited to smaller delay buffers and fewer parallel filters; suitable for entry-level head units with ≤8-channel I/O | Select when system memory requirements are below 60 kWords and cost optimization is prioritized over future scalability. |
| TAS3251RTAT | Fixed-function audio processor (no SigmaStudio programmability), 150 MHz ARM Cortex-M4 co-processor, 128 kB RAM | Targeted at OEMs requiring pre-certified audio algorithms (e.g., Harman Kardon, JBL) rather than custom signal flows | Choose when algorithm portability and third-party certification outweigh need for full graphical customization. |
Compared with ADAU1462WBCPZ300 and TAS3251RTAT, the ADAU1466WBCPZ300RL provides the highest on-chip data memory and full SigmaStudio programmability-making it the only option capable of hosting large-scale acoustic echo cancellation (AEC) + beamforming stacks alongside playback processing in a single device.
Availability
ADAU1466WBCPZ300RL is available at Aetrix Electronics and suitable for automotive infotainment systems, distributed amplifier modules, and rear-seat entertainment platforms requiring stable component supply across extended production lifecycles.
Supply support for ADAU1466WBCPZ300RL 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, Inc. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision, power, and connectivity applications.
The ADAU1466WBCPZ300RL belongs to the SigmaDSP family-designed specifically for low-latency, high-fidelity audio processing in automotive and professional audio systems where deterministic timing and configurability are critical.
FAQ
What is the maximum sample rate supported by the ADAU1466WBCPZ300RL for TDM audio I/O?
The ADAU1466WBCPZ300RL supports TDM audio I/O up to 192 kHz across its 48-channel interface. This is confirmed in the datasheet's "Audio I/O and routing" section and Table 10 (S/PDIF Transmitter and Receiver), which specifies 18–192 kHz operation for both transmitter and receiver paths-consistent with the device's capability to handle high-resolution audio streams in premium automotive audio systems. The 48-channel TDM bus operates at 32 bits per slot, enabling full utilization of bandwidth at 192 kHz.
Does the ADAU1466WBCPZ300RL include an integrated voltage regulator, and what does it supply?
Yes, the ADAU1466WBCPZ300RL integrates an on-chip regulator that generates a stable 1.2 V supply for the DSP core and digital circuitry from a 3.3 V AVDD input. As specified in the "REGULATOR" section of Table 2 and Table 3, this regulator maintains 1.14–1.26 V output up to 800 mA load, eliminating the need for an external core LDO and simplifying power design in compact automotive modules where board space is constrained.
How many asynchronous sample rate converters (ASRCs) does the ADAU1466WBCPZ300RL provide, and what is their dynamic range?
The ADAU1466WBCPZ300RL provides eight stereo (16-channel) asynchronous sample rate converters, each delivering 139 dB A-weighted dynamic range (20 Hz–20 kHz). This specification is explicitly stated in the FEATURES list and verified in Table 2 and Table 3 under "ASYNCHRONOUS SAMPLE RATE CONVERTERS." The high dynamic range ensures minimal quantization noise when bridging audio domains-critical for preserving fidelity in multichannel automotive systems with mixed-rate sources.
Can the ADAU1466WBCPZ300RL operate without an external microcontroller?
Yes, the ADAU1466WBCPZ300RL supports standalone operation via self-boot from external SPI EEPROM. As described in the "Self Boot" section (Page 45) and GENERAL DESCRIPTION, the device loads its program and configuration automatically at power-up, enabling fully autonomous audio processing in amplifier modules or auxiliary nodes where host MCU resources are unavailable or reserved for other tasks.
What is the function of the AUXADC inputs on the ADAU1466WBCPZ300RL, and what resolution do they provide?
The ADAU1466WBCPZ300RL includes six auxiliary ADC inputs (AUXADC0–AUXADC5) implementing a 10-bit SAR converter with ±2.5 LSB INL/DNL and gain error. Per Table 5 and the "Auxiliary ADC" section, these inputs sample at fCORE/6144 (≈48 kHz max) and are used for reading analog sensor voltages-such as temperature, battery level, or potentiometer settings-in automotive audio systems where closed-loop control or diagnostics are required.
ADAU1466WBCPZ300RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SigmaDSP®
- Package/Case:
- 72-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:
- 72-LFCSP-VQ (10x10)
ADAU1466WBCPZ300RL FAQ
1.How can I place an order for ADAU1466WBCPZ300RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADAU1466WBCPZ300RL 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 ADAU1466WBCPZ300RL reliable?
The price and inventory of ADAU1466WBCPZ300RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADAU1466WBCPZ300RL is usually 5 days.
3.What payment methods are accepted for ADAU1466WBCPZ300RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADAU1466WBCPZ300RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADAU1466WBCPZ300RL?
ADAU1466WBCPZ300RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADAU1466WBCPZ300RL 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 ADAU1466WBCPZ300RL?
For technical support, including ADAU1466WBCPZ300RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADAU1466WBCPZ300RL requirements.
6.How does Aetrix verify that ADAU1466WBCPZ300RL is sourced from the original manufacturer or authorized distributors?
All ADAU1466WBCPZ300RL 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 ADAU1466WBCPZ300RL meets industry standards.
7.What is the process for return or replacement of ADAU1466WBCPZ300RL?
All ADAU1466WBCPZ300RL units undergo pre-shipment inspection (PSI). If there is an issue with ADAU1466WBCPZ300RL, 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 ADAU1466WBCPZ300RL part is unused and in its original packaging.
Return procedure for ADAU1466WBCPZ300RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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