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Analog Devices Inc. ADAU1450WBCPZ-RL
- Part No.:
- ADAU1450WBCPZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 72-VFQFN Exposed Pad, CSP
- Datasheet:
-
ADAU1450WBCPZ-RL.pdf
- Description:
- IC AUDIO PROCESSOR 72LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,874
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Product details
Overview
ADAU1450WBCPZ-RL from Analog Devices is an automotive-qualified 32-bit SigmaDSP audio processor with a 147.456 MHz core, 8 kWords program memory, 8 kWords data RAM, 48-channel 32-bit digital I/O up to 192 kHz, and no S/PDIF or ASRC blocks-designed for cost-optimized head unit and DSP amplifier signal processing in vehicles.
For engineers reviewing the ADAU1450WBCPZ-RL datasheet, ADAU1450WBCPZ-RL pinout, ADAU1450WBCPZ-RL application, or ADAU1450WBCPZ-RL equivalent, this page delivers verified functional scope, exact memory allocation, confirmed clock domain architecture, validated I/O channel count, and real-world automotive use constraints-not generic DSP claims.
Technical Context
The ADAU1450WBCPZ-RL implements a fixed-function audio routing matrix with four independent serial input ports and four output ports, each supporting TDM/I²S/PCM formats at sample rates from 6 kHz to 192 kHz. Its 147.456 MHz DSP core executes up to 3072 SIMD instructions per sample at 48 kHz, with dedicated hardware for PDM microphone decimation and auxiliary ADC control.
It integrates an on-chip 1.2 V regulator powered from 3.3 V, a crystal oscillator, integer PLL, temperature sensor, and dual I²C/SPI interfaces (slave and master), enabling standalone boot from EEPROM and direct control of external audio components-without S/PDIF transceivers or asynchronous sample rate converters present in higher-tier variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DSP Core Frequency | 147.456 MHz - enables full 48-channel processing at 192 kHz with headroom for complex EQ, crossover, and dynamics algorithms |
| Program Memory | 8 kWords - sufficient for multi-band parametric EQ, FIR filters, and loudspeaker protection logic in compact automotive nodes |
| Data RAM | 8 kWords - supports real-time coefficient updates, delay lines up to ~800 ms at 48 kHz, and dynamic filter banks |
| Digital I/O Channels | 48-channel, 32-bit - allows simultaneous connection to multiple ADCs/DACs, amplifiers, and digital microphones without external multiplexing |
| Sample Rate Range | 6 kHz to 192 kHz - covers ultrasonic sensing, voiceband, and high-resolution audio domains within a single device |
| Supply Regulation | On-chip 1.2 V regulator from 3.3 V - eliminates need for external core LDO, reducing BOM count and PCB area |
| Temperature Range | −40°C to +105°C - qualified for under-dash automotive deployment with guaranteed operation across full vehicle lifecycle |
Pinout & Package
ADAU1450WBCPZ-RL uses a 72-lead, 10 mm × 10 mm LFCSP package with 5.3 mm exposed thermal pad, optimized for automotive thermal dissipation and board-level reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XTALIN / XTALOUT | Clock oscillator interface | Supports 12.288 MHz crystal for stable master clock generation; no external oscillator required |
| BCLK_IN0–BCLK_IN3 / LRCLK_IN0–LRCLK_IN3 | Input serial port clocks | Four independent bit clock/word clock pairs for synchronous TDM/I²S input streams up to 48 channels |
| SDATA_IN0–SDATA_IN3 | Serial audio input data | Accepts 32-bit wide TDM frames; each port handles up to 12 channels (48 total) at 192 kHz |
| BCLK_OUT0–BCLK_OUT3 / LRCLK_OUT0–LRCLK_OUT3 | Output serial port clocks | Configurable as master or slave; enables direct clocking of external DACs or amplifiers |
| SDATA_OUT0–SDATA_OUT3 | Serial audio output data | Drives 48-channel output with programmable channel mapping and format selection (I²S, left/right justified) |
| MISO / MOSI / SCLK / SS / SDA / SCL | I²C and SPI control interfaces | Dual-mode control bus supports both slave configuration (by host MCU) and master operation (to configure external codecs) |
| AUXADC0–AUXADC5 | Analog auxiliary inputs | 6-channel, 10-bit SAR ADC for monitoring battery voltage, temperature sensors, or potentiometer-based user controls |
| MP0–MP13 | Multipurpose digital I/O | 14 configurable pins usable as GPIO, PWM outputs, or interrupt sources-no dedicated reset pin required |
Key Features
| Feature | Design Value |
|---|---|
| SigmaStudio graphical development | Enables drag-and-drop audio flow design without C coding-reduces firmware validation time by >70% for production audio tuning |
| PDM microphone interface | Direct connection to 4 digital MEMS microphones with integrated decimation filters-eliminates external PDM-to-I²S bridges |
| Self-boot from EEPROM | Loads program and parameter data automatically at power-up-enables fully autonomous operation without host processor involvement |
| Dual I²C/SPI master+slave | Allows ADAU1450WBCPZ-RL to configure external ADCs/DACs while simultaneously accepting updates from a system MCU-reducing inter-processor coordination overhead |
| On-chip temperature sensor | Monitors die temperature in real time for thermal derating of audio algorithms-critical for amplifier protection in enclosed dash environments |
Applications
| Automotive Head Unit | DSP Amplifier |
|---|---|
Use Scenario: Central infotainment unit integrating radio, Bluetooth audio, navigation prompts, and rear-seat entertainment. IC Role / Device Role / Timing Role: Audio hub managing mixed-sample-rate inputs (Bluetooth A2DP @ 44.1 kHz, tuner @ 48 kHz, navigation voice @ 16 kHz) and routing to multiple DACs/amplifiers. Use Value: Eliminates external ASRCs and glue logic; reduces latency via deterministic 147.456 MHz core execution and hardware audio matrix routing. |
Use Scenario: 4-channel Class-D amplifier with active crossover, speaker protection, and cabin acoustic correction. IC Role / Device Role / Timing Role: Real-time signal conditioner between source and amplifier stages-applying FIR-based linear-phase crossovers and thermal foldback based on AUXADC readings. Use Value: On-chip 8 kWords data RAM stores long impulse responses for room correction; self-boot ensures immediate audio readiness after ignition. |
| Rear Seat Entertainment | Navigation System Audio |
Use Scenario: Dual-zone video playback with independent volume, EQ, and headphone output for front/rear passengers. IC Role / Device Role / Timing Role: Multi-stream audio processor handling HDMI ARC, USB audio, and analog line-in-synchronizing playback across zones using internal clock domains. Use Value: Four independent serial output ports drive separate DACs per zone; 48-channel I/O avoids time-division multiplexing bottlenecks. |
Use Scenario: Voice-guided turn-by-turn navigation with noise-adaptive speech enhancement in moving vehicles. IC Role / Device Role / Timing Role: Low-latency voice preprocessor-accepting PDM mic inputs, applying beamforming and noise suppression, then feeding clean audio to the main SoC. Use Value: Integrated PDM decimation and 147.456 MHz core enable sub-5 ms end-to-end voice path latency-meeting OEM voice response timing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADAU1451WBCPZ | Same 147.456 MHz core but with 16 kWords data RAM and S/PDIF I/O; no ASRCs | Supports S/PDIF-connected sources (e.g., CD players); larger RAM enables longer delay lines for advanced acoustic echo cancellation | Select when S/PDIF interface or >8 kWords RAM is required-otherwise ADAU1450WBCPZ-RL offers lower cost and identical core performance |
| ADAU1452WBCPZ | 294.912 MHz core, 40 kWords data RAM, 16-channel ASRCs, and full S/PDIF support | Required for multirate systems with legacy audio gear (e.g., mixing 44.1 kHz CD and 48 kHz streaming); supports >2× instruction throughput | Choose only if ASRCs, higher core frequency, or S/PDIF are mandatory-ADAU1450WBCPZ-RL is optimal for cost-sensitive, single-rate automotive nodes |
Compared with ADAU1451WBCPZ and ADAU1452WBCPZ, the ADAU1450WBCPZ-RL provides identical 147.456 MHz processing capability and automotive qualification at lowest BOM cost-making it the preferred choice where S/PDIF and ASRCs are unused, and 8 kWords RAM suffices for target audio features.
Availability
ADAU1450WBCPZ-RL is available at Aetrix Electronics and suitable for automotive head units, DSP amplifiers, rear seat entertainment systems, and navigation audio subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADAU1450WBCPZ-RL 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 ADAU1450WBCPZ-RL belongs to the SigmaDSP family-designed specifically for deterministic, low-latency audio algorithm execution in resource-constrained automotive ECUs where cost, thermal envelope, and functional safety compliance are critical.
FAQ
What is the maximum sample rate supported by ADAU1450WBCPZ-RL?
The ADAU1450WBCPZ-RL supports digital audio input and output at sample rates from 6 kHz to 192 kHz across its four serial ports. This range accommodates ultrasonic sensing, voiceband communication, and high-resolution audio playback-all within a single device without external resampling hardware.
Does ADAU1450WBCPZ-RL include S/PDIF interfaces?
No, the ADAU1450WBCPZ-RL does not include S/PDIF receiver or transmitter circuitry. The SPDIFIN and SPDIFOUT pins are nonfunctional, and all S/PDIF-related registers have no effect on operation-unlike the ADAU1451 and ADAU1452 variants which integrate full S/PDIF I/O.
Can ADAU1450WBCPZ-RL operate without an external microcontroller?
Yes, ADAU1450WBCPZ-RL supports standalone operation via self-boot from serial EEPROM. It loads program and parameter data automatically at power-up, enabling fully autonomous audio processing-ideal for head units or amplifiers where host MCU resources are constrained or unavailable.
How many PDM microphones can ADAU1450WBCPZ-RL interface directly?
The ADAU1450WBCPZ-RL integrates hardware decimation filters for up to four PDM microphone inputs. Each PDM channel is processed independently with configurable oversampling ratios, eliminating the need for external PDM-to-I²S bridge ICs in automotive cabin microphone arrays.
What is the function of the MP0–MP13 pins on ADAU1450WBCPZ-RL?
The MP0–MP13 pins on ADAU1450WBCPZ-RL are multipurpose digital I/Os configurable as GPIO inputs/outputs, PWM generators, or interrupt sources. They support system-level functions like mute control, amplifier enable signaling, or status LED driving-without requiring additional logic ICs.
ADAU1450WBCPZ-RL 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:
- 147.456MHz
- Non-Volatile Memory:
- ROM (32kB)
- On-Chip RAM:
- 32kB
- 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)
ADAU1450WBCPZ-RL FAQ
1.How can I place an order for ADAU1450WBCPZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADAU1450WBCPZ-RL 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 ADAU1450WBCPZ-RL reliable?
The price and inventory of ADAU1450WBCPZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADAU1450WBCPZ-RL is usually 5 days.
3.What payment methods are accepted for ADAU1450WBCPZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADAU1450WBCPZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADAU1450WBCPZ-RL?
ADAU1450WBCPZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADAU1450WBCPZ-RL 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 ADAU1450WBCPZ-RL?
For technical support, including ADAU1450WBCPZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADAU1450WBCPZ-RL requirements.
6.How does Aetrix verify that ADAU1450WBCPZ-RL is sourced from the original manufacturer or authorized distributors?
All ADAU1450WBCPZ-RL 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 ADAU1450WBCPZ-RL meets industry standards.
7.What is the process for return or replacement of ADAU1450WBCPZ-RL?
All ADAU1450WBCPZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADAU1450WBCPZ-RL, 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 ADAU1450WBCPZ-RL part is unused and in its original packaging.
Return procedure for ADAU1450WBCPZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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