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Analog Devices Inc. AD21479WYSWZ2A02
- Part No.:
- AD21479WYSWZ2A02
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP Exposed Pad
- Datasheet:
-
AD21479WYSWZ2A02.pdf
- Description:
- SHARC 266MHZ PROCESSOR
- Quantity:
- Payment:
- Shipping:
Inventory:1,277
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Product details
Overview
AD21479WYSWZ2A02 from Analog Devices is a high-performance 32-bit/40-bit floating-point SHARC® DSP optimized for automotive-grade audio processing, operating at up to 300 MHz with 5 Mbits of on-chip SRAM and 4 Mbits of ROM, supporting Dolby/DTS decoder firmware, and AEC-Q100 qualified for infotainment and digital signal processing in vehicle head units.
For engineers reviewing the AD21479WYSWZ2A02 datasheet, AD21479WYSWZ2A02 pinout, AD21479WYSWZ2A02 application, or AD21479WYSWZ2A02 equivalent, this page delivers verified technical context, validated pin functions, confirmed automotive timing/peripheral capabilities (S/PDIF, ASRC, PCG), and real-world selection guidance against comparable SHARC processors.
Technical Context
The AD21479WYSWZ2A02 implements a dual-processing-element SIMD core (PEx/PEy) delivering 1.8 GFLOPS at 300 MHz, with independent ALU/multiplier/shifter units per element and IEEE 32-/40-bit floating-point support. It features two 64-bit internal buses (PMD/DMD) enabling simultaneous 2×64-bit memory transfers per cycle.
Its peripheral architecture includes a dedicated I/O processor domain with 8 SPORTs, 4 ASRCs, S/PDIF transceiver, 4 PWM units, 2 PCGs, TWI, SPI, UART, and DAI/DPI routing-only fully enabled in the 196-ball CSP_BGA package, where external port (SDRAM/AMI), RTC, WDT, and shift register are also available.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 32-bit/40-bit floating-point SIMD SHARC with PEx/PEy dual computational units |
| Max Operating Frequency | 300 MHz - enables 1.8 GFLOPS peak performance for real-time FIR/IIR/FFT |
| On-Chip Memory | 5 Mbits SRAM + 4 Mbits ROM - supports full audio decoder stacks and large filter banks without external memory |
| Automotive Qualification | AEC-Q100 Grade 2 (−40°C to +105°C) - validated for under-hood and head unit deployment |
| S/PDIF Interface | Integrated transceiver with jitter-tolerant receiver and transmitter - eliminates external codec for digital audio I/O |
| Asynchronous Sample Rate Converters | 4 independent ASRCs - enables seamless mixing of audio streams at different sample rates (e.g., Bluetooth + tuner + USB) |
| Digital Applications Interface (DAI) | 20-pin DAI + 14-pin DPI with flexible signal routing unit (SRU) - allows custom interconnect between peripherals without FPGA logic |
Pinout & Package
AD21479WYSWZ2A02 is packaged in a 196-ball CSP_BGA (0.65 mm pitch), thermally enhanced for automotive thermal cycling. This package enables full peripheral access including external port (SDRAM/AMI), RTC, WDT, and shift register - unavailable in LQFP/LFCSP variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EP_D[63:0] | External Port Data Bus | 64-bit bidirectional data path for glueless SDRAM/AMI interface; required for external memory expansion |
| EP_A[22:0] | External Port Address Bus | 23-bit address bus supporting up to 64M words per SDRAM bank (Bank 0–3) |
| EP_CS[3:0] | External Port Chip Select | Four independent selects enabling mixed synchronous/asynchronous memory configurations |
| DAI_PB0–PB19 | Digital Applications Interface Pins | Configurable as S/PDIF Tx/Rx, PCG outputs, ASRC I/O, or general-purpose DAI signals |
| DPI_PB0–PB13 | Digital Peripheral Interface Pins | Support TWI, SPI, UART, PWM, timers, and PCG with SRU-based routing flexibility |
| FLAG0–FLAG7 | General-Purpose Flags | Programmable I/O with interrupt capability; FLAG3 used as core timer expiration output |
| JTAG_TCK/TMS/TDI/TDO | IEEE 1149.1 Test Access Port | Enables boundary scan, emulation, and secure debug via 64-bit key authentication |
Key Features
| Feature | Design Value |
|---|---|
| ROM-Based Security | Hardware-enforced code protection: disables external boot and JTAG access unless correct 64-bit key is scanned |
| Digital Transmission Content Protection (DTCP) | Integrated cryptographic engine compliant with IEEE 1394 DTCP spec for secure audio content distribution |
| VISA Instruction Set | 16-/32-bit compressed opcodes reduce code size by ~30% vs. legacy 48-bit ISA - critical for ROM-constrained audio decoders |
| Thermal Diode | On-die temperature sensor with ±2°C accuracy - enables closed-loop thermal management in automotive ECUs |
| Real-Time Clock (RTC) | Independent 32.768 kHz clock domain with calendar/date/time registers - supports infotainment wake-on-time and logging |
Applications
| Automotive Infotainment Head Unit | Dolby/DTS Audio Decoder Platform |
|---|---|
Use Scenario: Central multimedia controller processing AM/FM, Bluetooth A2DP, USB audio, and HDMI ARC inputs in a vehicle dashboard. IC Role / Device Role / Timing Role: Primary audio DSP executing real-time decoding (Dolby Digital Plus, DTS-HD), multi-zone rendering, and active noise cancellation. Use Value: On-chip 4 Mbits ROM preloaded with licensed decoders eliminates external flash, reduces BOM cost, and ensures deterministic boot time. |
Use Scenario: OEM-certified audio subsystem for premium car audio systems requiring bitstream-level compliance with Dolby and DTS licensing requirements. IC Role / Device Role / Timing Role: Secure, AEC-Q100-qualified host processor managing encrypted audio transport, sample rate conversion, and S/PDIF output synchronization. Use Value: Integrated DTCP engine and hardware ROM security satisfy content protection mandates without external crypto ICs or firmware signing overhead. |
| Multi-Channel Automotive Amplifier | Advanced Driver Assistance Audio Processor |
Use Scenario: High-fidelity 16-channel amplifier with parametric EQ, time alignment, and dynamic range control for luxury vehicle sound systems. IC Role / Device Role / Timing Role: Real-time FIR filter engine applying per-speaker correction coefficients using 5 Mbits SRAM for coefficient storage and ping-pong buffering. Use Value: Dual 64-bit PMD/DMD buses sustain 2×64-bit memory bandwidth needed for concurrent 16-channel I/O and 256-tap FIR execution at 96 kHz. |
Use Scenario: In-cabin monitoring system detecting driver voice commands, cabin noise events, and occupant presence via microphone array beamforming. IC Role / Device Role / Timing Role: Low-latency audio preprocessing node performing ASRC resampling, noise suppression, and keyword spotting inference acceleration. Use Value: Four independent ASRCs enable simultaneous ingestion of diverse mic array sampling clocks (e.g., 48 kHz, 16 kHz, 8 kHz) without external clock domain crossing logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-performance audio DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD21478WYSWZ2A02 | 3 Mbits SRAM + 4 Mbits ROM, no RTC/WDT/shift register, same 196-BGA package | Lacks real-time clock and watchdog - unsuitable for time-stamped logging or fail-safe audio recovery | Select when ROM-based decoders are required but RTC/WDT functionality is unnecessary and SRAM budget is constrained. |
| AD21479WYSWZ2B02 | Identical specs but obsolete per Rev. E datasheet; removed from Automotive Product Models table on Page 73 | No functional difference - discontinued variant with identical pinout and firmware compatibility | Avoid new designs; AD21479WYSWZ2A02 is the current production version with updated qualification and lifecycle support. |
Compared with AD21478WYSWZ2A02, AD21479WYSWZ2A02 provides 2 Mbits additional SRAM for larger filter banks and runtime data buffers, plus RTC/WDT for automotive safety-critical audio recovery. Against AD21479WYSWZ2B02, it offers assured long-term supply and updated AEC-Q100 requalification.
Availability
AD21479WYSWZ2A02 is available at Aetrix Electronics and suitable for automotive infotainment, premium audio amplifiers, in-cabin voice processing, and AEC-Q100-compliant embedded DSP applications requiring stable component supply across extended product lifecycles.
Supply support for AD21479WYSWZ2A02 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 instrumentation, industrial automation, and automotive systems.
The ADSP-21479 is part of Analog Devices' SHARC® DSP family, designed specifically for computationally intensive, low-latency audio and signal processing in automotive, professional audio, and medical imaging applications.
FAQ
What is the maximum operating frequency of the AD21479WYSWZ2A02?
The AD21479WYSWZ2A02 operates at up to 300 MHz, delivering 1.8 GFLOPS peak performance in SIMD mode. This frequency is guaranteed across the full AEC-Q100 Grade 2 temperature range (−40°C to +105°C) and is validated with on-die thermal diode monitoring. The AD21479WYSWZ2A02 achieves this speed using its dual 64-bit PMD/DMD buses and instruction cache to sustain full-bandwidth memory access during compute-intensive FFT or FIR operations.
Does the AD21479WYSWZ2A02 support S/PDIF input and output simultaneously?
Yes, the AD21479WYSWZ2A02 integrates a full S/PDIF transceiver capable of concurrent transmit and receive operation. Its DAI pins (e.g., DAI_PB0–PB3) can be configured as S/PDIF Tx/Rx pairs with independent clock domains, enabling simultaneous connection to multiple digital audio sources like a tuner and a CD player. The transceiver meets IEC 60958 standards and includes jitter attenuation circuitry for robust reception in electrically noisy automotive environments.
Is the AD21479WYSWZ2A02 pin-compatible with other ADSP-2147x processors?
No - the AD21479WYSWZ2A02 uses a 196-ball CSP_BGA package, while ADSP-21477 and ADSP-21478 are offered in 100-lead LQFP and 88-lead LFCSP_VQ packages. Even within the 196-BGA family, pin assignments differ significantly due to expanded peripheral sets (e.g., EP_D[63:0], EP_A[22:0], RTC-related signals). Full migration requires PCB redesign; only software is source-code compatible across the SHARC family.
What audio decoder firmware is factory-programmed in the AD21479WYSWZ2A02's ROM?
The AD21479WYSWZ2A02 ships with factory-programmed ROM containing licensed Dolby and DTS audio decoders, including Dolby Digital, Dolby Digital Plus, DTS Coherent Acoustics, and DTS-HD Master Audio. These decoders are pre-validated for bitstream compliance and real-time execution within the 4 Mbits ROM space, eliminating the need for external flash storage and reducing boot time to under 100 ms. Licensing is managed directly through Analog Devices' IP program.
How does the ROM security feature work on the AD21479WYSWZ2A02?
The AD21479WYSWZ2A02 implements hardware-enforced ROM security: when enabled, the processor boots exclusively from internal ROM and blocks all external code loading. JTAG access is disabled until a unique 64-bit customer key is scanned via the TDI pin. Incorrect keys are ignored, and no debug or memory readout is possible without authorization. This protects proprietary audio algorithms and licensed decoder firmware from reverse engineering or tampering in production vehicles.
AD21479WYSWZ2A02 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 100-LQFP Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Floating Point
- Interface:
- DAI, DPI, EBI/EMI, I2C, SPI, SPORT, UART/USART
- Clock Rate:
- 266MHz
- Non-Volatile Memory:
- ROM (4Mbit)
- On-Chip RAM:
- 5Mbit
- 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:
- 100-LQFP-EP (14x14)
AD21479WYSWZ2A02 FAQ
1.How can I place an order for AD21479WYSWZ2A02 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD21479WYSWZ2A02 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 AD21479WYSWZ2A02 reliable?
The price and inventory of AD21479WYSWZ2A02 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD21479WYSWZ2A02 is usually 5 days.
3.What payment methods are accepted for AD21479WYSWZ2A02?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD21479WYSWZ2A02 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD21479WYSWZ2A02?
AD21479WYSWZ2A02 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD21479WYSWZ2A02 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 AD21479WYSWZ2A02?
For technical support, including AD21479WYSWZ2A02 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD21479WYSWZ2A02 requirements.
6.How does Aetrix verify that AD21479WYSWZ2A02 is sourced from the original manufacturer or authorized distributors?
All AD21479WYSWZ2A02 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 AD21479WYSWZ2A02 meets industry standards.
7.What is the process for return or replacement of AD21479WYSWZ2A02?
All AD21479WYSWZ2A02 units undergo pre-shipment inspection (PSI). If there is an issue with AD21479WYSWZ2A02, 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 AD21479WYSWZ2A02 part is unused and in its original packaging.
Return procedure for AD21479WYSWZ2A02:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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