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Analog Devices Inc. ADAU1450WBCPZ
- Part No.:
- ADAU1450WBCPZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 72-VFQFN Exposed Pad, CSP
- Datasheet:
-
ADAU1450WBCPZ.pdf
- Description:
- IC AUDIO PROCESSOR 72LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:109
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Product details
Overview
ADAU1450WBCPZ from Analog Devices is an automotive-qualified, fully programmable SigmaDSP audio processor with a 147.456 MHz 32-bit core, 8 kWords of program memory, 8 kWords of data RAM, and support for up to 48-channel 32-bit digital I/O at sample rates up to 192 kHz. It integrates a crystal oscillator, integer PLL, on-chip 1.2 V regulator, temperature sensor, and dual I²C/SPI interfaces (slave and master) for standalone operation in head units and DSP amplifiers.
For engineers reviewing the ADAU1450WBCPZ datasheet, ADAU1450WBCPZ pinout, ADAU1450WBCPZ application, or ADAU1450WBCPZ equivalent, key selection considerations include its lack of S/PDIF and ASRC blocks (vs. ADAU1452/1451), fixed 147.456 MHz core frequency, −40°C to +105°C operating range, and 72-lead LFCSP package - critical for automotive audio BOM consolidation and thermal reliability.
Technical Context
The ADAU1450WBCPZ implements a restructured SigmaDSP core optimized for sample-by-sample and block-by-block audio processing flows via SigmaStudio. Its hardware routing matrix enables flexible multichannel signal path configuration across four TDM/I²S serial input and output ports, each supporting up to 48 channels at 32-bit resolution.
It features dedicated decimation filters for four PDM microphone inputs, a self-boot capability from serial EEPROM, and independent slave/master control interfaces - enabling it to act as both a signal processor and system controller without external host intervention in embedded automotive audio nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DSP Core Frequency | 147.456 MHz - fixed clock rate enabling deterministic real-time audio processing at ≤192 kHz sample rates |
| Program Memory | 8 kWords - sufficient for complex multi-band EQ, crossover, and dynamic range control algorithms in compact head units |
| Data RAM | 8 kWords - supports up to 800 ms of digital audio delay pool at 48 kHz for acoustic echo cancellation or lip-sync compensation |
| Digital I/O Capacity | 48-channel, 32-bit - allows full integration of multiple ADCs/DACs, amplifiers, and digital transducers in a single domain |
| Operating Temperature | −40°C to +105°C - qualified for under-dash automotive environments without derating |
| Package | 72-lead, 10 mm × 10 mm LFCSP with 5.3 mm exposed pad - provides low thermal resistance for sustained 250 mA DVDD load |
| Power Supply Integration | On-chip 1.2 V regulator from 3.3 V AVDD - eliminates external DC/DC, reducing BOM count and layout area |
Pinout & Package
ADAU1450WBCPZ uses a 72-lead, 10 mm × 10 mm LFCSP package with a 5.3 mm exposed thermal pad. Pin functions are defined per Analog Devices' Rev. D datasheet (Pages 23–32), including dedicated SDATA_IN/OUT, BCLK/LRCLK pairs, XTALIN/XTALOUT, SPI/I²C dual-mode pins, MP[13:0] multipurpose I/O, AUXADC[5:0], and thermal monitoring signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDATA_IN0–SDATA_IN3 | Digital Audio Input Data | Accepts up to 48-channel TDM/I²S streams; mapped to internal routing matrix for flexible channel assignment |
| SDATA_OUT0–SDATA_OUT3 | Digital Audio Output Data | Drives up to 48-channel output; supports independent sample rate domains per port group |
| BCLK_IN0–BCLK_IN3 / LRCLK_IN0–LRCLK_IN3 | Input Clock Pair Inputs | Accept master clocks and frame sync for asynchronous domain synchronization; no ASRC dependency required |
| BCLK_OUT0–BCLK_OUT3 / LRCLK_OUT0–LRCLK_OUT3 | Output Clock Pair Outputs | Generated by internal clock generators; configurable for TDM slot count, polarity, and phase alignment |
| XTALIN / XTALOUT | Crystal Oscillator Interface | Supports fundamental-mode crystals (e.g., 12.288 MHz); enables jitter-free master clock generation without external oscillator |
| MP0–MP13 | Multipurpose Digital I/O | Configurable as GPIO, PWM outputs, or interrupt inputs; supports level-shifting between 1.8 V and 3.3 V IOVDD domains |
| AUXADC0–AUXADC5 | Analog Sensor Inputs | 6-channel, 10-bit SAR ADC for monitoring battery voltage, thermistors, or potentiometer-based user controls |
| IOVDD / AVDD / DVDD / PVDD | Supply Rails | Separate analog/digital/PLL/I/O domains enable noise isolation and mixed-voltage system interfacing |
Key Features
| Feature | Design Value |
|---|---|
| SigmaStudio graphical development | Enables drag-and-drop audio algorithm design (EQ, dynamics, mixing) without C coding - cuts firmware development time by >70% vs. traditional DSP toolchains |
| Self-boot from EEPROM | Loads program and parameter data automatically on power-up; eliminates need for host microcontroller in cost-sensitive standalone modules |
| Dual I²C/SPI master+slave | Allows ADAU1450WBCPZ to configure external DACs, ADCs, or display drivers while simultaneously accepting updates from a system MCU - simplifies hierarchical audio subsystems |
| Integrated 1.2 V regulator | Derives core supply from 3.3 V AVDD; reduces external component count by one DC/DC converter and associated passives |
| Die temperature sensor | Monitors junction temperature in real time; enables thermal throttling or fault reporting in automotive amplifier applications |
| PDM microphone interface | Direct connection to four digital MEMS microphones with built-in decimation filters - avoids external sigma-delta decimation ICs and PCB space |
Applications
| Automotive Head Unit | DSP Amplifier Module |
|---|---|
Use Scenario: Central infotainment unit processing navigation voice prompts, Bluetooth A2DP streaming, and analog radio tuner outputs into a unified 48-channel output bus. IC Role / Device Role / Timing Role: Audio hub and real-time signal conditioner - performs sample rate conversion (via internal clock generators), channel routing, and loudness compensation before sending to multi-zone amplifiers. Use Value: Eliminates external ASRCs and routing switches; leverages 48-channel I/O and 8 kWords RAM to run concurrent 10-band parametric EQs per zone without latency penalty. |
Use Scenario: Compact Class-D amplifier board integrating digital input, protection logic, and speaker-specific processing (time alignment, clipping prevention) for rear-seat entertainment systems. IC Role / Device Role / Timing Role: Standalone audio controller - boots autonomously, reads amplifier status via AUXADC, and adjusts gain/delay in real time using internal DSP core. Use Value: Reduces bill-of-materials by replacing discrete microcontroller + audio codec + DSP combo; 147.456 MHz core ensures <50 µs loop latency for feedback-based protection algorithms. |
| Navigation System Audio | Commercial Audio Mixer |
Use Scenario: In-vehicle navigation system requiring clear voice guidance overlay on background music, with automatic ducking and echo cancellation for hands-free calling. IC Role / Device Role / Timing Role: Voice enhancement processor - applies adaptive noise suppression and acoustic echo cancellation using PDM mic inputs and real-time routing to speaker outputs. Use Value: Four integrated PDM decimation paths eliminate external mic interface ICs; 8 kWords data RAM supports 256-tap FIR filters for robust echo cancellation at 48 kHz. |
Use Scenario: Rack-mountable digital mixer for conference rooms, accepting mic/line inputs via ADCs and delivering processed outputs to Dante/AES67 endpoints through DACs and serializers. IC Role / Device Role / Timing Role: Signal routing and processing engine - aggregates 48 channels from multiple ADCs, applies dynamics and spatial effects, then routes to output serializers via TDM ports. Use Value: Fixed 147.456 MHz core guarantees consistent instruction timing across all channels; 72-lead LFCSP enables high-density layout with minimal EMI coupling to sensitive analog sections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADAU1451WBCPZ | 40 kWords data RAM, same 147.456 MHz core, includes S/PDIF I/O and ASRCs | Required where S/PDIF interconnect or sample rate translation between disparate audio sources is needed | Select ADAU1451WBCPZ when system architecture mandates S/PDIF links or multirate bridging - ADAU1450WBCPZ lacks both blocks entirely |
| ADAU1452WBCPZ | 294.912 MHz core, 40 kWords RAM, full ASRC and S/PDIF support, identical package | Needed for high-complexity algorithms (e.g., 32-band EQ per channel) or >192 kHz ultrasonic processing | Choose ADAU1452WBCPZ only if program load exceeds ADAU1450WBCPZ's 8 kWords capacity or requires ASRC functionality - otherwise ADAU1450WBCPZ offers lower power and cost |
Compared with ADAU1451WBCPZ and ADAU1452WBCPZ, the ADAU1450WBCPZ trades ASRCs, S/PDIF, and higher memory for reduced power consumption (≤250 mA DVDD), lower cost, and simplified qualification - making it optimal for cost-constrained, single-domain automotive audio nodes where external sample rate conversion is handled elsewhere.
Availability
ADAU1450WBCPZ is available at Aetrix Electronics and suitable for automotive head units, DSP amplifier modules, and navigation system audio requiring stable component supply, AEC-Q100 compliance, and long-term industrial lifecycle support.
Supply support for ADAU1450WBCPZ 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 digital signal processing semiconductors, serving automotive, industrial, and communications markets with precision, reliability, and innovation.
The ADAU1450WBCPZ belongs to Analog Devices' SigmaDSP family - designed specifically for real-time, low-latency audio signal processing in resource-constrained embedded systems where deterministic performance and automotive-grade robustness are mandatory.
FAQ
Does ADAU1450WBCPZ support S/PDIF input or output?
No, the ADAU1450WBCPZ does not include S/PDIF receiver or transmitter circuitry. Its SPDIFIN and SPDIFOUT pins are nonfunctional, and related registers have no operational effect. This distinguishes it from the ADAU1451WBCPZ and ADAU1452WBCPZ, which integrate full S/PDIF interfaces. For S/PDIF-capable designs, those variants must be selected instead of ADAU1450WBCPZ.
What is the maximum sample rate supported by ADAU1450WBCPZ for digital audio I/O?
The ADAU1450WBCPZ supports digital audio input and output at sample rates up to 192 kHz across its four serial ports. Each port handles up to 12 channels in TDM mode, aggregating to 48 total channels at 32-bit resolution. This capability is enabled by its flexible clock generators and hardware audio routing matrix - not by ASRCs, which are absent in ADAU1450WBCPZ.
Can ADAU1450WBCPZ operate without an external microcontroller?
Yes, ADAU1450WBCPZ supports standalone operation via self-boot from external serial EEPROM. Upon power-up, it automatically loads program code and parameter data, initializes clocks and I/O, and begins audio processing - eliminating dependency on a host MCU. This feature is widely used in automotive amplifier modules and compact head units where cost and footprint are critical.
What type of microphone inputs does ADAU1450WBCPZ support?
The ADAU1450WBCPZ includes four dedicated PDM microphone input channels with integrated decimation filters optimized for MEMS microphones. These inputs accept standard 1-bit PDM bitstreams and convert them to 32-bit PCM internally - bypassing the need for external decimation ICs and simplifying PCB layout in voice-enabled automotive systems.
Is ADAU1450WBCPZ qualified for automotive applications?
Yes, ADAU1450WBCPZ is explicitly qualified for automotive use with an operating temperature range of −40°C to +105°C and compliance to AEC-Q100 stress test standards. Its on-chip temperature sensor, robust power regulation, and latch-up immunity make it suitable for under-dash head units, amplifier modules, and navigation systems deployed in harsh vehicle environments.
ADAU1450WBCPZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SigmaDSP®
- Package/Case:
- 72-VFQFN Exposed Pad, CSP
- Packaging:
- Tray
- 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 FAQ
1.How can I place an order for ADAU1450WBCPZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADAU1450WBCPZ 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 reliable?
The price and inventory of ADAU1450WBCPZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADAU1450WBCPZ is usually 5 days.
3.What payment methods are accepted for ADAU1450WBCPZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADAU1450WBCPZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADAU1450WBCPZ?
ADAU1450WBCPZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADAU1450WBCPZ 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?
For technical support, including ADAU1450WBCPZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADAU1450WBCPZ requirements.
6.How does Aetrix verify that ADAU1450WBCPZ is sourced from the original manufacturer or authorized distributors?
All ADAU1450WBCPZ 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 meets industry standards.
7.What is the process for return or replacement of ADAU1450WBCPZ?
All ADAU1450WBCPZ units undergo pre-shipment inspection (PSI). If there is an issue with ADAU1450WBCPZ, 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 part is unused and in its original packaging.
Return procedure for ADAU1450WBCPZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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