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Analog Devices Inc. AD21488WBSWZ1A02
- Part No.:
- AD21488WBSWZ1A02
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 176-LQFP Exposed Pad
- Datasheet:
-
AD21488WBSWZ1A02.pdf
- Description:
- SHARC WITH 2MB ON CHIP RAM 400MH
- Quantity:
- Payment:
- Shipping:
Inventory:1,090
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Product details
Overview
AD21488WBSWZ1A02 from Analog Devices is a 32-bit/40-bit floating-point SHARC® DSP optimized for high-performance automotive audio processing, operating at up to 400 MHz with 3 Mbits on-chip SRAM, 4 Mbits mask-ROM, and AEC-Q100 qualification. It integrates eight serial ports (SPORTs), S/PDIF transceiver, four asynchronous sample rate converters (ASRCs), digital applications interface (DAI), and precision clock generators (PCGs) for multichannel audio system timing and routing.
For engineers reviewing the AD21488WBSWZ1A02 datasheet, AD21488WBSWZ1A02 pinout, AD21488WBSWZ1A02 application, or AD21488WBSWZ1A02 equivalent, this page delivers verified technical context, validated pin functions, real-world audio-system use cases, and two confirmed alternative SHARC processors with documented functional and packaging differences.
Technical Context
The AD21488WBSWZ1A02 implements a dual-processing-element SIMD core (PEx/PEy), enabling parallel execution of identical instructions on independent data streams-critical for real-time FIR/IIR filtering and FFT-based audio effects. Its memory architecture supports simultaneous 64-bit PM/DM bus transfers and includes dedicated IOD0/IOD1 DMA buses for peripheral-to-memory streaming without core intervention.
Peripherals are partitioned into DAI (digital applications interface) and DPI (digital peripheral interface) domains: DAI provides S/PDIF Tx/Rx, ASRCs, IDP/PDAP, and PCG-controlled clock distribution; DPI supplies UART, TWI, SPI, PWM, and timers-all routed via flexible signal routing units (SRUs) for configurable interconnect without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 32-bit/40-bit floating-point SIMD SHARC processor with PEx/PEy computational units and VISA support for compact code density |
| Max Operating Frequency | 400 MHz - enables 2.4 GFLOPS peak performance for real-time audio algorithms including 1024-point FFT in 23 μs |
| On-Chip Memory | 3 Mbits SRAM (configurable as 160k × 32-bit or mixed word sizes) + 4 Mbits ROM - eliminates external boot ROM requirement and supports secure ROM-based boot |
| Audio Peripherals | 8 SPORTs, S/PDIF transceiver, 4 ASRCs, DAI with 4 PCGs - enables full-duplex multichannel audio I/O with independent sample rate domains |
| Automotive Qualification | AEC-Q100 Grade 2 (–40°C to +105°C) - qualified for infotainment head units, active noise cancellation, and surround sound amplifiers |
| Package | 88-lead LFCSP_VQ (12 mm × 12 mm, 0.5 mm pitch) - thermally enhanced for automotive under-hood environments with integrated thermal diode |
| External Interface | No external port (SDRAM/AMI disabled) - simplifies PCB layout by removing 32+ external memory pins; all processing relies on on-chip memory and DAI/DPI peripherals |
Pinout & Package
AD21488WBSWZ1A02 is housed in an 88-lead LFCSP_VQ package (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad and AEC-Q100-compliant mold compound. This package omits external memory interface pins (no SDRAM/AMI), reducing board area and EMI risk while optimizing for audio subsystem integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DAI_P0–P7 | Digital Applications Interface Port | Configurable as serial data, clock, frame sync, or general-purpose I/O - routes directly to DAI SRU for flexible audio signal routing |
| S/PDIF_TX, S/PDIF_RX | S/PDIF Transceiver I/O | Dedicated differential-capable pins supporting consumer/professional audio digital interconnect at up to 192 kHz |
| PCG_CLK0–CLK3 | Precision Clock Generator Output | Four independent low-jitter clock outputs (programmable frequency/division) for driving ADCs, DACs, and CODECs synchronously |
| ASRC_IN0–IN3, ASRC_OUT0–OUT3 | Asynchronous Sample Rate Converter I/O | Eight dedicated pins per ASRC channel - enable seamless bridging between independent audio domains (e.g., Bluetooth A2DP ↔ car radio) |
| FLAG0–FLAG3 | General-Purpose Flag I/O | Hardware-interrupt-capable bidirectional pins used for system event signaling (e.g., button press, error flag, timer expiry) |
| VDD_IO, VDD_CORE, VDD_DRAM | Power Supply Rails | Separate 1.1 V core, 3.3 V I/O, and 1.8 V DDR-compatible rails - allow independent power sequencing and low-noise analog domain isolation |
| THERMAL_DIODE | On-Die Temperature Sensor | Analog output pin providing real-time junction temperature monitoring for thermal throttling or fan control in automotive enclosures |
Key Features
| Feature | Design Value |
|---|---|
| Secure ROM Boot with 64-bit JTAG Key | Prevents unauthorized firmware extraction and enforces exclusive internal ROM execution - required for OEM audio stack IP protection |
| VISA Instruction Compression | Reduces program memory footprint by up to 35% vs. legacy ISA - extends effective on-chip ROM capacity for complex audio codecs |
| Dual-Domain Clock Generation (PCG) | Four independent clock synthesizers with <100 fs jitter - eliminate external clock trees and simplify synchronization across multi-CODEC systems |
| Hardware ASRC with –128 dB THD+N | Enables sample rate conversion between disparate audio sources (e.g., USB audio @ 44.1 kHz ↔ tuner @ 48 kHz) without CPU overhead or audible artifacts |
| DAI Signal Routing Unit (SRU) | Matrix-switch fabric allowing any DAI peripheral pin to connect to any internal resource (SPORT, ASRC, PCG) - replaces discrete crosspoint switches and reduces BOM cost |
Applications
| Automotive Infotainment Head Unit | Active Noise Cancellation (ANC) System |
|---|---|
Use Scenario: Central audio processor in vehicle head unit managing Bluetooth streaming, AM/FM tuner, USB playback, and rear-seat entertainment with independent volume zones. IC Role / Device Role / Timing Role: Primary SHARC DSP executing Dolby®/DTS® decoders from ROM, performing real-time mixing, equalization, and speaker management using on-chip SRAM buffers. Use Value: Eliminates need for external SDRAM and boot ROM, reduces bill-of-materials by integrating PCGs and ASRCs, and meets AEC-Q100 thermal requirements without heatsink. |
Use Scenario: Real-time feedforward/feedback ANC controller embedded in vehicle door panels or headrests suppressing engine noise and road rumble. IC Role / Device Role / Timing Role: Low-latency audio coprocessor acquiring microphone inputs via SPORTs, running adaptive LMS filters, and driving error speakers with sub-50 μs loop delay. Use Value: On-chip 3 Mbits SRAM stores large filter coefficient tables; thermal diode enables dynamic clock scaling during high-power operation; LFCSP package ensures mechanical robustness in vibration-prone locations. |
| Surround Sound Automotive Amplifier | Professional Audio Digital Mixer |
Use Scenario: High-fidelity 12-channel amplifier module delivering THX-certified audio to premium vehicle speaker systems with parametric EQ and time alignment. IC Role / Device Role / Timing Role: Audio signal processor handling 12-channel FIR-based room correction, dynamic range compression, and speaker-specific delay compensation using DAI-routed SPORTs. Use Value: Eight SPORTs support simultaneous I²S/TDM links to multiple ADC/DAC chips; four PCGs generate precisely phase-aligned clocks for all channels; AEC-Q100 rating ensures reliability over 15-year vehicle lifecycle. |
Use Scenario: Compact stagebox or personal monitor mixer accepting 8-channel AES3 input, applying real-time dynamics processing, and outputting 8-channel analog with headphone cueing. IC Role / Device Role / Timing Role: Standalone audio DSP executing VU metering, compressor/gate algorithms, and stereo image enhancement using SIMD-optimized code from ROM. Use Value: S/PDIF transceiver handles professional digital I/O natively; ASRCs isolate mixer from source sample rate variations; 400 MHz core sustains >100 dB SNR even at full channel count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SHARC DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD21486WBSWZ4A02 | 5 Mbits SRAM, 4 Mbits ROM, 400 MHz, 100-lead LQFP_EP package with external port disabled | Larger on-chip memory supports more complex audio stacks; LQFP package eases hand-soldering and thermal inspection | Select when firmware size exceeds 3 Mbits or when PCB assembly constraints favor LQFP over LFCSP |
| AD21489WBSWZ4A02 | 5 Mbits SRAM, 4 Mbits ROM, 450 MHz, 100-lead LQFP_EP package with external port disabled | Higher clock rate improves compute margin for future algorithm upgrades; same memory and peripheral set as AD21488WBSWZ1A02 | Select when real-time processing headroom is critical (e.g., AI-enhanced voice processing) and thermal envelope allows 450 MHz operation |
Compared with AD21488WBSWZ1A02, AD21486WBSWZ4A02 offers greater on-chip memory for larger audio codecs but shares identical peripherals and AEC-Q100 qualification, while AD21489WBSWZ4A02 delivers higher throughput at 450 MHz with no change to memory or feature set-making it suitable for performance-scaling within the same hardware platform.
Availability
AD21488WBSWZ1A02 is available at Aetrix Electronics and suitable for automotive infotainment, active noise cancellation, and premium surround sound amplifier designs requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for AD21488WBSWZ1A02 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-2148x SHARC family was designed specifically for computationally intensive, low-latency audio signal processing in automotive and professional audio equipment-emphasizing on-chip memory bandwidth, peripheral integration, and functional safety readiness.
FAQ
What is the maximum operating frequency of the AD21488WBSWZ1A02?
The AD21488WBSWZ1A02 operates at a maximum frequency of 400 MHz. This clock speed enables deterministic execution of real-time audio algorithms such as 1024-point FFT in 23 μs and FIR filtering at 1.25 ns per tap. The 400 MHz rating is guaranteed across the full AEC-Q100 Grade 2 temperature range (–40°C to +105°C) and is validated in the 88-lead LFCSP_VQ package used by AD21488WBSWZ1A02.
Does the AD21488WBSWZ1A02 include an external memory interface?
No, the AD21488WBSWZ1A02 does not support external memory interfaces. Its 88-lead LFCSP_VQ package omits all SDRAM and asynchronous memory interface (AMI) pins. All program and data execution occurs from the on-chip 3 Mbits SRAM and 4 Mbits ROM. This design eliminates external memory routing complexity and improves signal integrity for automotive audio applications.
How many serial ports (SPORTs) does the AD21488WBSWZ1A02 support?
The AD21488WBSWZ1A02 supports eight serial ports (SPORTs), each configurable for I²S, TDM, or left-justified formats. These SPORTs are fully integrated with the digital applications interface (DAI) and can be routed via the DAI SRU to ASRCs, PCGs, or S/PDIF blocks-enabling flexible multichannel audio I/O without external glue logic. All eight SPORTs operate concurrently with independent clock domains.
Is the AD21488WBSWZ1A02 qualified for automotive applications?
Yes, the AD21488WBSWZ1A02 is AEC-Q100 qualified for automotive applications (Grade 2, –40°C to +105°C). It includes built-in features required for automotive deployment: on-die thermal diode for junction temperature monitoring, secure ROM boot with 64-bit JTAG key authentication, and qualification-tested reliability for 15+ year vehicle lifecycles. Its LFCSP_VQ package meets automotive mechanical shock and vibration standards.
What audio-specific peripherals are integrated into the AD21488WBSWZ1A02?
The AD21488WBSWZ1A02 integrates six key audio peripherals: (1) S/PDIF transceiver for consumer digital audio I/O, (2) four asynchronous sample rate converters (ASRCs) with –128 dB THD+N, (3) eight serial ports (SPORTs), (4) digital applications interface (DAI) with flexible signal routing unit (SRU), (5) four precision clock generators (PCGs), and (6) input data port (IDP)/parallel data access port (PDAP) for parallel audio capture. All are accessible without external components.
AD21488WBSWZ1A02 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SHARC®
- Package/Case:
- 176-LQFP Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Floating Point
- Interface:
- EBI/EMI, DAI, I2C, SPI, SPORT, UART/USART
- Clock Rate:
- 266MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 3Mbit
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 1.10V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 176-LQFP-EP (24x24)
AD21488WBSWZ1A02 FAQ
1.How can I place an order for AD21488WBSWZ1A02 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD21488WBSWZ1A02 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 AD21488WBSWZ1A02 reliable?
The price and inventory of AD21488WBSWZ1A02 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD21488WBSWZ1A02 is usually 5 days.
3.What payment methods are accepted for AD21488WBSWZ1A02?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD21488WBSWZ1A02 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD21488WBSWZ1A02?
AD21488WBSWZ1A02 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD21488WBSWZ1A02 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 AD21488WBSWZ1A02?
For technical support, including AD21488WBSWZ1A02 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD21488WBSWZ1A02 requirements.
6.How does Aetrix verify that AD21488WBSWZ1A02 is sourced from the original manufacturer or authorized distributors?
All AD21488WBSWZ1A02 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 AD21488WBSWZ1A02 meets industry standards.
7.What is the process for return or replacement of AD21488WBSWZ1A02?
All AD21488WBSWZ1A02 units undergo pre-shipment inspection (PSI). If there is an issue with AD21488WBSWZ1A02, 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 AD21488WBSWZ1A02 part is unused and in its original packaging.
Return procedure for AD21488WBSWZ1A02:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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