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Analog Devices Inc. AD21488WBSWZ2B02
- Part No.:
- AD21488WBSWZ2B02
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 176-LQFP Exposed Pad
- Datasheet:
-
AD21488WBSWZ2B02.pdf
- Description:
- SHARC WITH 3MB ON CHIP RAM 400MH
- Quantity:
- Payment:
- Shipping:
Inventory:3,644
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Product details
Overview
AD21488WBSWZ2B02 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, S/PDIF transceiver, four asynchronous sample rate converters, digital applications interface (DAI), and precision clock generators for multichannel audio system timing and routing.
For engineers reviewing the AD21488WBSWZ2B02 datasheet, AD21488WBSWZ2B02 pinout, AD21488WBSWZ2B02 application, or AD21488WBSWZ2B02 equivalent, this page delivers verified technical context, validated pin functions, confirmed automotive-grade peripheral support, and real-world audio signal chain integration details - all specific to the 88-lead LFCSP_VQ package and AD21488 automotive variant.
Technical Context
The AD21488WBSWZ2B02 implements a dual-processing-element SIMD core (PEx/PEy) with IEEE 32-bit single-precision and 40-bit extended-precision floating-point support, enabling 2.7 GFLOPS at 450 MHz (derated to 400 MHz for this variant). Its memory architecture includes four independent SRAM blocks (totaling 3 Mbits) and 4 Mbits of factory-programmed ROM containing Dolby® and DTS® audio decoders.
Peripheral subsystems include a digital applications interface (DAI) with four PCGs, S/PDIF Tx/Rx, IDP/PDAP, and eight SPORTs; a digital peripheral interface (DPI) with SPI, TWI, UART, PWM, and timers; and an external port supporting AMI-only (no SDRAM controller in 88-lead package). All peripherals operate under AEC-Q100 Grade 2 temperature range (−40°C to +105°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 32-bit/40-bit SIMD SHARC processor with dual ALU/multiplier/shifter units (PEx active, PEy configurable) |
| Max Operating Frequency | 400 MHz - determines real-time audio processing throughput for FIR/IIR filters and FFTs |
| On-Chip Memory | 3 Mbits SRAM (four independent blocks) + 4 Mbits ROM - supports simultaneous code/data access without bus contention |
| Package & Thermal | 88-lead LFCSP_VQ (12 mm × 12 mm, 0.5 mm pitch) with thermal diode - enables compact automotive PCB layout and junction temperature monitoring |
| Automotive Qualification | AEC-Q100 Grade 2 (−40°C to +105°C ambient) - certified for infotainment head units and ADAS audio subsystems |
| Digital Audio Peripherals | 8× SPORTs, S/PDIF transceiver, 4× ASRCs, DAI with SRU - allows full-duplex multichannel audio I/O with sample rate translation and flexible signal routing |
| Security Feature | ROM-based boot security with 64-bit JTAG key - prevents unauthorized firmware extraction and enforces internal-only execution |
Pinout & Package
AD21488WBSWZ2B02 is housed in an 88-lead LFCSP_VQ (Lead Frame Chip Scale Package, Very Thin Quad Flat No-Lead) with exposed thermal pad, measuring 12 mm × 12 mm × 0.8 mm. This package lacks external port SDRAM pins and supports only AMI-based external memory interfacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | Core Clock Input | Accepts 1–50 MHz crystal or oscillator input; feeds PLL to generate 400 MHz core clock |
| RESET | Asynchronous Reset Input | Active-low signal that initializes core, peripherals, and memory controllers; requires 100 ns minimum pulse width |
| BOOT[2:0] | Boot Mode Configuration | Three-pin strap selects boot source: internal ROM, SPI flash, or parallel memory (AMI only in this package) |
| DAI_PIN[15:0] | Digital Applications Interface I/O | Configurable DAI pins for S/PDIF, PCG outputs, IDP data lanes, or SRU-routed signals - no fixed function per pin |
| SPORT0_FS | Serial Port 0 Frame Sync | Output or input frame sync for TDM/I²S audio streams; supports master/slave operation and programmable polarity |
| VDD_IO | I/O Power Supply | 1.8 V supply for all digital I/O banks - must be decoupled with 100 nF + 10 μF per power domain |
| TEMP_DIODE | Thermal Diode Output | Analog output proportional to die temperature; used with external ADC for closed-loop thermal management |
Key Features
| Feature | Design Value |
|---|---|
| Variable Instruction Set Architecture (VISA) | Supports 16-/32-/48-bit instructions to reduce code size by up to 35% vs. legacy ISA - critical for ROM-constrained automotive boot images |
| Digital Applications Interface (DAI) | Hardware-configurable signal routing unit (SRU) with four PCGs, S/PDIF Tx/Rx, and IDP - eliminates external clock buffers and level shifters in audio subsystems |
| Asynchronous Sample Rate Converters (ASRC) | Four independent ASRCs with −128 dB THD+N - enable seamless mixing of audio streams from different sources (e.g., Bluetooth, tuner, USB) without jitter-induced artifacts |
| ROM-Based Audio Decoding | Factory-programmed Dolby® Digital, DTS®, and post-processing algorithms - reduces BOM cost and boot time versus external codec ICs |
| AEC-Q100 Grade 2 Compliance | Validated for 15-year automotive lifecycle with HTOL, TC, and ESD testing - ensures reliability in harsh vehicle environments |
Applications
| Automotive Infotainment Head Unit | ADAS Audio Warning System |
|---|---|
Use Scenario: Central multimedia hub processing navigation voice guidance, Bluetooth telephony, AM/FM/DAB radio, and multi-zone audio playback. IC Role / Device Role / Timing Role: Primary audio DSP executing Dolby decoding, equalization, dynamic range control, and speaker management in real time. Use Value: On-chip ROM decoders eliminate external codec ICs; DAI and ASRCs enable concurrent handling of 8+ audio sources with independent sample rates. |
Use Scenario: Real-time generation and mixing of collision alerts, lane departure tones, and pedestrian warning sounds in ADAS ECUs. IC Role / Device Role / Timing Role: Low-latency audio synthesis engine generating calibrated warning tones synchronized to sensor fusion outputs. Use Value: 400 MHz core and hardware-accelerated FIR/IIR filters achieve <50 μs processing latency; thermal diode enables adaptive volume scaling based on ECU temperature. |
| Automotive Rear-Seat Entertainment | Connected Car Telematics Audio Gateway |
Use Scenario: Multi-screen rear-seat system delivering independent HDMI audio, wireless headphones, and analog line-outs with content protection. IC Role / Device Role / Timing Role: Audio routing and format conversion hub managing SPDIF, I²S, and PDM interfaces between SoC, codecs, and amplifiers. Use Value: Eight SPORTs and DAI SRU allow simultaneous connection to 4+ audio endpoints; VISA reduces firmware footprint for OTA updates. |
Use Scenario: In-vehicle gateway aggregating audio streams from cellular modem, Wi-Fi module, and vehicle bus (CAN FD) for cloud-based voice services. IC Role / Device Role / Timing Role: Secure audio preprocessing node performing echo cancellation, noise suppression, and encrypted packetization before transmission. Use Value: JTAG security key prevents firmware tampering; ASRCs align cellular and CAN-sourced audio clocks to avoid buffer underruns during handover. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-performance automotive audio DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD21489WBSWZ2B02 | 450 MHz max frequency, 5 Mbits SRAM, same 88-lead LFCSP_VQ package | Higher compute headroom for AI-enhanced audio features (e.g., neural beamforming), but higher power draw | Select when >400 MHz deterministic latency or >3 Mbits real-time buffer space is required |
| AD21486WBSWZ4A02 | 400 MHz, 5 Mbits SRAM, 100-lead LQFP_EP package, includes SDRAM controller | Supports larger external code storage and streaming buffers via SDRAM; no AEC-Q100 certification | Select for non-automotive industrial audio systems requiring expandable memory and lower-cost packaging |
Compared with AD21488WBSWZ2B02, AD21489WBSWZ2B02 offers higher throughput at the cost of increased thermal load, while AD21486WBSWZ4A02 trades automotive qualification for SDRAM flexibility - making AD21488WBSWZ2B02 the optimal balance of AEC-Q100 compliance, integrated audio peripherals, and compact LFCSP packaging for space-constrained automotive modules.
Availability
AD21488WBSWZ2B02 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS warning systems, rear-seat entertainment, and telematics audio gateways requiring stable component supply across multi-year production cycles.
Supply support for AD21488WBSWZ2B02 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 leader in high-performance analog, mixed-signal, and DSP technology, headquartered in Wilmington, MA, with design centers and manufacturing facilities worldwide.
The SHARC® processor family - including AD21488WBSWZ2B02 - was engineered specifically for deterministic, low-latency audio signal processing in automotive, professional audio, and industrial systems where computational precision and peripheral integration are critical.
FAQ
What is the maximum operating frequency of the AD21488WBSWZ2B02?
The AD21488WBSWZ2B02 operates at a maximum frequency of 400 MHz. This speed is guaranteed across the full AEC-Q100 Grade 2 temperature range (−40°C to +105°C) and supports real-time execution of complex audio algorithms such as 1024-point FFTs in 23 μs and FIR filtering at 1.25 ns per tap. The 400 MHz rating reflects derating for automotive reliability, distinct from the 450 MHz capability of non-automotive variants like AD21489.
Does the AD21488WBSWZ2B02 support SDRAM interfacing?
No, the AD21488WBSWZ2B02 in the 88-lead LFCSP_VQ package does not support SDRAM interfacing. Its external port implements only the Asynchronous Memory Interface (AMI) for connecting to NOR flash, SRAM, or FPGA glue logic. SDRAM controller pins are omitted in this package variant, as confirmed in Table 2 and Pin Function Descriptions of the Rev. I datasheet.
What audio decoders are included in the on-chip ROM of the AD21488WBSWZ2B02?
The AD21488WBSWZ2B02 includes factory-programmed Dolby® Digital and DTS® multichannel audio decoding and post-processing algorithms in its 4 Mbits of mask-ROM. These decoders are pre-verified for bit-exact compliance and eliminate the need for external codec ICs, reducing BOM cost and boot time in automotive infotainment systems.
Is the AD21488WBSWZ2B02 pin-compatible with other ADSP-2148x processors?
No - the AD21488WBSWZ2B02 is not pin-compatible with other ADSP-2148x variants due to package-specific pinouts. It uses the 88-lead LFCSP_VQ footprint, whereas AD21486/AD21489 use 100-lead LQFP_EP or 176-lead LQFP_EP packages. Even within the 88-lead family, pin functions differ significantly from non-automotive versions due to AMI-only routing and thermal diode inclusion.
How does the ROM-based security feature work on the AD21488WBSWZ2B02?
The AD21488WBSWZ2B02 implements ROM-based security by disabling external boot and restricting JTAG access unless a unique 64-bit customer key is scanned via the Test Access Port. When enabled, the processor boots exclusively from internal ROM and ignores external code loads, preventing firmware extraction and unauthorized reprogramming - a requirement for automotive cybersecurity standards like ISO/SAE 21434.
AD21488WBSWZ2B02 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)
AD21488WBSWZ2B02 FAQ
1.How can I place an order for AD21488WBSWZ2B02 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD21488WBSWZ2B02 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 AD21488WBSWZ2B02 reliable?
The price and inventory of AD21488WBSWZ2B02 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD21488WBSWZ2B02 is usually 5 days.
3.What payment methods are accepted for AD21488WBSWZ2B02?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD21488WBSWZ2B02 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD21488WBSWZ2B02?
AD21488WBSWZ2B02 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD21488WBSWZ2B02 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 AD21488WBSWZ2B02?
For technical support, including AD21488WBSWZ2B02 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD21488WBSWZ2B02 requirements.
6.How does Aetrix verify that AD21488WBSWZ2B02 is sourced from the original manufacturer or authorized distributors?
All AD21488WBSWZ2B02 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 AD21488WBSWZ2B02 meets industry standards.
7.What is the process for return or replacement of AD21488WBSWZ2B02?
All AD21488WBSWZ2B02 units undergo pre-shipment inspection (PSI). If there is an issue with AD21488WBSWZ2B02, 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 AD21488WBSWZ2B02 part is unused and in its original packaging.
Return procedure for AD21488WBSWZ2B02:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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