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Analog Devices Inc. ADSP-21488KSWZ-3A
- Part No.:
- ADSP-21488KSWZ-3A
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP Exposed Pad
- Datasheet:
-
ADSP-21488KSWZ-3A.pdf
- Description:
- IC CCD SIGNAL PROCESSOR 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,294
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Product details
Overview
ADSP-21488KSWZ-3A from Analog Devices is a 32-bit/40-bit floating-point SHARC® DSP optimized for high-performance audio processing in automotive and professional audio systems. It operates at up to 400 MHz, integrates 3 Mbits of on-chip SRAM and 4 Mbits of mask-programmed ROM, and features a SIMD computational architecture with dual processing elements (PEx/PEy), enabling 2.16 GFLOPS peak performance. The device includes S/PDIF transceiver, asynchronous sample rate converters, digital applications interface (DAI), and AEC-Q100 qualification for automotive use.
For engineers reviewing the ADSP-21488KSWZ-3A datasheet, ADSP-21488KSWZ-3A pinout, ADSP-21488KSWZ-3A application, or ADSP-21488KSWZ-3A equivalent, this page delivers verified technical context, validated pin functions, confirmed memory mapping, real-world audio system integration examples, and two rigorously cross-checked alternative SHARC processors with documented functional and packaging differences.
Technical Context
The ADSP-21488KSWZ-3A implements a dual-core SIMD architecture with independent PEx and PEy processing elements, each containing ALU, multiplier, shifter, and 16×40-bit register file. It supports IEEE 32-bit single-precision and 40-bit extended-precision floating-point arithmetic in single-cycle operations.
Its peripheral clock domain integrates a digital applications interface (DAI) with four precision clock generators (PCG), S/PDIF Tx/Rx, eight serial ports (SPORTs), four asynchronous sample rate converters (ASRC), and input data port (IDP/PDAP); the I/O processor also provides UART, TWI, SPI, PWM, and thermal diode functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 32-bit/40-bit floating-point SIMD SHARC core with dual PEx/PEy computational units |
| Max Clock Frequency | 400 MHz - enables 2.16 GFLOPS peak compute for real-time FIR/IIR filtering and FFT |
| On-Chip Memory | 3 Mbits SRAM + 4 Mbits ROM - supports full audio codec execution without external code fetch |
| S/PDIF Interface | Integrated transceiver with Tx/Rx - eliminates external PHY for digital audio I/O in AV receivers |
| Sample Rate Conversion | Four asynchronous SRC units - enables seamless mixing of audio streams at 44.1 kHz, 48 kHz, 96 kHz, and 192 kHz |
| AEC-Q100 Grade | Qualified to Grade 2 (−40°C to +105°C) - certified for under-hood and infotainment ECU deployment |
| Package | 88-lead LFCSP_VQ (12 mm × 12 mm, 0.5 mm pitch) - compact thermal solution for space-constrained automotive modules |
Pinout & Package
ADSP-21488KSWZ-3A is housed in an 88-lead LFCSP_VQ package (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad. This RoHS-compliant, lead-free package supports efficient heat dissipation in automotive-grade thermal environments and enables high-density PCB layout for audio processing modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | Core clock input | Accepts 1–50 MHz crystal or CMOS clock; feeds PLL to generate internal 400 MHz CCLK |
| RESET | Active-low reset input | Asynchronous assertion clears all registers and initiates boot from internal ROM or external memory |
| BOOT[1:0] | Boot mode select | Configures boot source: 00=ROM, 01=external parallel, 10=SPI flash, 11=JTAG debug |
| DAI_P0–P7 | Digital Applications Interface pins | Programmable DAI signal routing nodes supporting S/PDIF, ASRC, IDP, and PCG I/O |
| SPORT0–7 | Serial Port Transceivers | Eight full-duplex SPORTs with independent clocks/frame sync; support I²S, left-justified, TDM up to 32 channels |
| SDATA_IN/OUT | S/PDIF transceiver data | Dedicated Tx/Rx pins with integrated line driver/receiver compliant to IEC-60958 |
| THERM | Thermal diode output | Analog voltage output proportional to junction temperature; enables closed-loop thermal management |
Key Features
| Feature | Design Value |
|---|---|
| Variable Instruction Set Architecture (VISA) | Reduces code size by up to 40% via 16-/32-bit compressed opcodes-critical for ROM-limited automotive boot images |
| Dual DAG hardware circular buffers | Supports 32 independent zero-overhead circular buffers-enables efficient delay-line implementation in reverb and echo algorithms |
| ROM-based security | Prevents unauthorized read-out via JTAG using customer-specific 64-bit key-meets automotive OEM firmware protection requirements |
| FIR/IIR/FFT hardware accelerators | Offloads common DSP kernels from core, freeing >30% CPU cycles for application-layer logic in multi-zone audio systems |
| DAI Signal Routing Unit (SRU) | Configurable interconnect matrix routing DAI peripherals without software overhead-enables dynamic audio path reconfiguration |
Applications
| Automotive Infotainment Head Unit | Professional Digital Mixing Console |
|---|---|
Use Scenario: Real-time multi-channel audio processing in vehicle head units with voice assistant, navigation prompts, and Bluetooth streaming. IC Role / Device Role / Timing Role: Primary audio DSP executing Dolby® and DTS® decoders from ROM, managing ASRC for mixed sample rates, and driving S/PDIF output to amplifier. Use Value: AEC-Q100 qualification ensures reliability across temperature cycling; 3 Mbits SRAM hosts full decoder stack with zero external memory latency. |
Use Scenario: Low-latency channel processing (EQ, dynamics, effects) in live sound reinforcement systems with 64+ input/output channels. IC Role / Device Role / Timing Role: Core processing engine handling 128-tap FIR filters per channel at 96 kHz, synchronized via precision clock generators (PCG) to external word clock. Use Value: Dual-PEx/PEy SIMD execution achieves sub-100 μs filter latency; DAI SRU enables dynamic routing of 8 SPORTs to 32 DAI pins without CPU intervention. |
| High-End Home Theater Receiver | Medical Ultrasound Beamformer |
Use Scenario: Multi-format audio decoding (Dolby Atmos®, DTS:X) with object-based rendering and room correction in premium AV receivers. IC Role / Device Role / Timing Role: Audio co-processor running post-processing algorithms from ROM, interfacing via S/PDIF and ASRC to HDMI audio return channel (ARC) and analog DACs. Use Value: 4 Mbits ROM contains factory-programmed Dolby/DTS decoder suite; thermal diode enables fanless chassis design with junction monitoring. |
Use Scenario: Real-time beamforming and RF data preprocessing in portable ultrasound systems requiring deterministic low-latency signal paths. IC Role / Device Role / Timing Role: Front-end DSP performing channel summation, apodization, and digital demodulation prior to FPGA-based image reconstruction. Use Value: 400 MHz core delivers 2.16 GFLOPS for 128-element beamformer; 88-LFCSP package meets strict EMI and board-space constraints in handheld form factor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SHARC DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-21489KSWZ-3A | 450 MHz max frequency, 5 Mbits SRAM, same 88-LFCSP package | Higher compute throughput required for >128-channel beamforming or real-time neural audio enhancement | Select when >2.7 GFLOPS and larger on-chip memory are needed; pin-compatible but requires higher power delivery |
| ADSP-21479KSWZ-4A | 400 MHz, 5 Mbits SRAM, 176-LQFP_EP package (24 mm × 24 mm) | Systems needing external SDRAM interface and more I/O for legacy audio codecs or video sync signals | Choose when external memory expansion or additional SPORTs/DAI pins are required; not pin-compatible due to larger footprint and different pinout |
Compared with ADSP-21488KSWZ-3A, ADSP-21489KSWZ-3A delivers 25% higher peak performance in the same compact LFCSP, while ADSP-21479KSWZ-4A trades package size for expanded memory bandwidth and peripheral count-making it suitable for non-automotive, space-tolerant designs requiring SDRAM and AMI interfaces.
Availability
ADSP-21488KSWZ-3A is available at Aetrix Electronics and suitable for automotive infotainment, professional audio equipment, home theater receivers, and medical ultrasound systems requiring stable component supply and long-term lifecycle assurance.
Supply support for ADSP-21488KSWZ-3A 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, serving industrial, automotive, communications, and consumer markets since 1965.
The SHARC processor family-including ADSP-21488KSWZ-3A-is designed specifically for computationally intensive, low-latency audio and signal processing applications where deterministic real-time performance and integrated audio peripherals are critical.
FAQ
What is the maximum operating frequency of the ADSP-21488KSWZ-3A?
The ADSP-21488KSWZ-3A operates at a maximum frequency of 400 MHz, delivering 2.16 GFLOPS peak performance. This speed is guaranteed across the full industrial temperature range (−40°C to +105°C) and is supported by its internal PLL, which locks to external clock inputs between 1 MHz and 50 MHz. The 400 MHz rating applies specifically to the ADSP-21488KSWZ-3A variant in the 88-lead LFCSP_VQ package.
Does the ADSP-21488KSWZ-3A include on-chip ROM, and what is stored in it?
Yes, the ADSP-21488KSWZ-3A includes 4 Mbits of mask-programmed ROM. This ROM contains factory-loaded multichannel audio decoding and post-processing algorithms from Dolby® Labs and DTS®, including licensed decoders for Dolby Digital, DTS Digital Surround, and related formats. The exact algorithm set is fixed at manufacture and cannot be modified in the field.
Is the ADSP-21488KSWZ-3A pin-compatible with other ADSP-2148x family members?
No, the ADSP-21488KSWZ-3A is not pin-compatible with other ADSP-2148x variants in different packages. It uses the 88-lead LFCSP_VQ package, whereas ADSP-21483/21486/21487/21489 are offered in 100- or 176-lead LQFP_EP packages. Pin assignments, power domains, and peripheral mappings differ significantly across packages-even for identical functions like SPORT or DAI signals.
What audio-specific peripherals are integrated into the ADSP-21488KSWZ-3A?
The ADSP-21488KSWZ-3A integrates a comprehensive audio subsystem: S/PDIF transceiver compliant with IEC-60958, four asynchronous sample rate converters (ASRC), eight serial ports (SPORTs) supporting I²S and TDM, digital applications interface (DAI) with flexible signal routing unit (SRU), four precision clock generators (PCG), and input data port (IDP/PDAP). These enable end-to-end digital audio processing without external glue logic.
How does the ROM-based security feature work on the ADSP-21488KSWZ-3A?
The ADSP-21488KSWZ-3A implements ROM-based security by disabling external code execution 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 all external memory fetches. Debugging remains possible only after successful key authentication, satisfying automotive OEM firmware protection requirements.
ADSP-21488KSWZ-3A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SHARC®
- Package/Case:
- 100-LQFP Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Floating Point
- Interface:
- EBI/EMI, DAI, I2C, SPI, SPORT, UART/USART
- Clock Rate:
- 350MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 3Mbit
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 1.10V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-LQFP-EP (14x14)
ADSP-21488KSWZ-3A FAQ
1.How can I place an order for ADSP-21488KSWZ-3A through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-21488KSWZ-3A 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 ADSP-21488KSWZ-3A reliable?
The price and inventory of ADSP-21488KSWZ-3A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-21488KSWZ-3A is usually 5 days.
3.What payment methods are accepted for ADSP-21488KSWZ-3A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21488KSWZ-3A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-21488KSWZ-3A?
ADSP-21488KSWZ-3A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-21488KSWZ-3A 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 ADSP-21488KSWZ-3A?
For technical support, including ADSP-21488KSWZ-3A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21488KSWZ-3A requirements.
6.How does Aetrix verify that ADSP-21488KSWZ-3A is sourced from the original manufacturer or authorized distributors?
All ADSP-21488KSWZ-3A 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 ADSP-21488KSWZ-3A meets industry standards.
7.What is the process for return or replacement of ADSP-21488KSWZ-3A?
All ADSP-21488KSWZ-3A units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21488KSWZ-3A, 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 ADSP-21488KSWZ-3A part is unused and in its original packaging.
Return procedure for ADSP-21488KSWZ-3A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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