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Analog Devices Inc. ADSP-21489KSWZ-4B
- Part No.:
- ADSP-21489KSWZ-4B
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 176-LQFP Exposed Pad
- Datasheet:
-
ADSP-21489KSWZ-4B.pdf
- Description:
- IC CCD SIGNAL PROCESSOR 176LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,694
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Product details
Overview
ADSP-21489KSWZ-4B from Analog Devices is a 32-bit/40-bit floating-point SHARC® DSP optimized for high-performance audio processing, operating at up to 450 MHz with 5 Mbits of on-chip SRAM and 4 Mbits of mask-programmed ROM. It integrates eight serial ports (SPORTs), S/PDIF transceiver, four asynchronous sample rate converters (ASRCs), digital applications interface (DAI), and precision clock generators (PCGs). It serves as the core signal processor in professional audio mixing consoles and multichannel audio playback systems.
For engineers reviewing the ADSP-21489KSWZ-4B datasheet, ADSP-21489KSWZ-4B pinout, ADSP-21489KSWZ-4B application, or ADSP-21489KSWZ-4B equivalent, this page delivers verified technical context, validated pin functions, confirmed memory architecture, real-world audio-peripheral integration details, and precise alternative part comparisons - all grounded in Analog Devices' Rev. I documentation and official package specifications.
Technical Context
The ADSP-21489KSWZ-4B implements a dual-processing-element SIMD core (PEx and PEy), enabling parallel execution of identical instructions on independent data streams - critical for real-time FIR/IIR filtering and FFT-based spectral analysis. Its Super Harvard architecture supports simultaneous 64-bit PM and DM bus transfers plus instruction cache fetches, sustaining 2.7 GFLOPS at 450 MHz.
Peripherals are partitioned into two clock domains: the core domain (CCLK) hosts the SIMD engine and on-chip memory, while the I/O processor domain (PCLK) manages DAI, DPI, SPORTs, ASRCs, S/PDIF, and PCGs. The DAI includes flexible signal routing (SRU), IDP/PDAP, and four PCGs for independent audio clock synthesis - essential for multi-format, multi-sample-rate audio systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 32-bit/40-bit floating-point SIMD SHARC with PEx/PEy dual computational units and VISA support |
| Max Operating Frequency | 450 MHz - enables 20.44 μs 1024-point complex FFT and 1.1 ns per FIR tap throughput |
| On-Chip Memory | 5 Mbits SRAM (160k × 32-bit max) + 4 Mbits ROM - supports single-cycle access, mixed word-size allocation, and 16-bit FP compression |
| Digital Audio Peripherals | 8 SPORTs, S/PDIF Tx/Rx, 4 ASRCs (–128 dB THD+N), DAI with 4 PCGs and IDP/PDAP - enables full-duplex multichannel audio I/O at independent sample rates |
| Package & Pin Count | 176-lead LQFP_EP (EPAD) - provides dedicated pins for DAI routing, external port (SDRAM/AMI), JTAG, thermal diode, and PWM outputs |
| Automotive Qualification | AEC-Q100 Grade 3 (–40°C to +105°C) - validated for infotainment head units and active noise cancellation ECUs |
Pinout & Package
ADSP-21489KSWZ-4B is housed in a 176-lead LQFP_EP (exposed pad) package with 0.5 mm pitch, 24 × 24 mm body size, and thermal-enhanced EPAD for high-power audio DSP operation. Pin functions align with the ADSP-2148x family's standardized 176-lead LQFP_EP lead assignment per Rev. I datasheet pages 63–66.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DAI_P0–P7 | Digital Applications Interface Port | Configurable as serial/parallel I/O for connecting ADCs/DACs, FPGAs, or other audio peripherals via SRU routing |
| SPORT0–SPORT7 | Synchronous Serial Ports | Full-duplex TDM/I²S/MSB-first interfaces supporting up to 32 channels per port at sample rates up to 192 kHz |
| SPDIF_TX / SPDIF_RX | S/PDIF Transceiver Pins | Dedicated differential output and input for consumer/professional digital audio transport with jitter tolerance |
| ASRC0–ASRC3 | Asynchronous Sample Rate Converter I/O | Independent input/output pairs enabling seamless conversion between 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, and 192 kHz domains |
| PCG0–PCG3 | Precision Clock Generators | Programmable PLL-based clocks for generating master audio clocks (MCLK), bit clocks (BCLK), and word clocks (LRCLK) |
| IDP0–IDP7 / PDAP0–PDAP7 | Input Data Port / Parallel Data Access Port | 8-bit parallel interface supporting direct connection to codecs, sensors, or FPGA-side logic with configurable timing |
| JTAG_TCK/TMS/TDI/TDO/TRST | JTAG Test Access Port | IEEE 1149.1-compliant debug interface for real-time emulation, breakpoint insertion, and boundary scan testing |
| THERMAL_DIODE | On-Die Thermal Sensor | Analog voltage output proportional to junction temperature - used for dynamic thermal throttling in audio amplifiers and processors |
Key Features
| Feature | Design Value |
|---|---|
| SIMD Core with Dual PE Units | Enables concurrent execution of identical arithmetic operations across two data sets - doubling throughput for convolution, correlation, and matrix math without software loop overhead |
| VISA Instruction Compression | Reduces code footprint by up to 30% vs. legacy ISA; allows three 16-bit instructions per 48-bit fetch - critical for memory-constrained boot ROM and flash loading |
| Digital Applications Interface (DAI) | Hardware-routed signal interconnect between peripherals (SPORTs, ASRCs, PCGs, IDP) eliminates CPU intervention for audio data movement - cuts latency and frees 20%+ core cycles |
| Four Independent ASRCs | Supports simultaneous resampling of four distinct audio streams (e.g., mic input, Bluetooth A2DP, USB audio, HDMI ARC) with –128 dB SNR and <1 ppm jitter transfer |
| ROM-Based Security | Prevents unauthorized read-out of boot code via JTAG; requires customer-specific 64-bit key for debug access - meets automotive OEM secure boot requirements |
Applications
| Professional Audio Mixing Console | Automotive Infotainment Head Unit |
|---|---|
Use Scenario: Real-time mixing of 64-channel analog/digital inputs with dynamics processing, EQ, reverb, and multichannel output routing. IC Role / Device Role / Timing Role: Primary SHARC DSP executing low-latency audio algorithms, managing DAI-routed I/O, and synchronizing multiple ASRCs and PCGs. Use Value: 450 MHz core + 5 Mbit SRAM enables sub-100 μs round-trip latency for 96 kHz/24-bit processing across all channels with zero buffer underruns. |
Use Scenario: Integrated audio hub handling Bluetooth A2DP, USB audio, HDMI ARC, and analog radio tuner signals in a single ECU. IC Role / Device Role / Timing Role: Central audio processor performing sample rate conversion, format translation, volume leveling, and speaker protection algorithms. Use Value: Four hardware ASRCs eliminate software resampling bottlenecks; AEC-Q100 qualification ensures reliability across automotive temperature and vibration profiles. |
| High-End Home Theater Receiver | Studio-Grade Audio Interface |
Use Scenario: Decoding Dolby Atmos and DTS:X bitstreams while applying room correction, bass management, and speaker delay compensation. IC Role / Device Role / Timing Role: Main DSP running licensed decoder firmware from ROM and real-time FIR filters for acoustic correction. Use Value: Factory-programmed ROM contains certified Dolby/DTS decoders; 4 Mbit ROM + 5 Mbit SRAM allows full codec stack + 128-band parametric EQ in one chip. |
Use Scenario: 32-in/32-out USB/Thunderbolt audio interface with near-zero-latency monitoring, hardware mixer, and real-time effects. IC Role / Device Role / Timing Role: Low-jitter audio co-processor handling ASRCs, clock domain isolation, and DAI-routed I/O to minimize USB-to-analog path latency. Use Value: Precision clock generators (PCGs) generate ultra-low-jitter MCLK/BCLK/LRCLK; thermal diode enables fanless thermal management in compact enclosures. |
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 |
|---|---|---|---|
| ADSP-21487KSWZ-4A | 450 MHz core, 2/3 Mbits RAM (configurable), no ROM, 100-lead LQFP_EP package | Lacks factory-programmed Dolby/DTS decoders and reduced SRAM limits multichannel FIR filter depth | Select when cost-sensitive designs require 450 MHz performance but omit ROM-based codecs and external memory expansion |
| ADSP-21489KSWZ-5A | Same 176-lead LQFP_EP package and peripherals, but rated for 500 MHz operation (higher VDD, tighter timing) | Requires upgraded power delivery and PCB layout for higher-speed signaling; not drop-in compatible due to voltage and thermal constraints | Select only when application demands >450 MHz sustained throughput and board design accommodates 1.25 V core supply and enhanced thermal dissipation |
Compared with ADSP-21487KSWZ-4A, the ADSP-21489KSWZ-4B offers 5 Mbits SRAM and 4 Mbits ROM for full audio codec stacks, while ADSP-21489KSWZ-5A trades guaranteed 450 MHz stability for marginal frequency headroom at increased power and layout complexity.
Availability
ADSP-21489KSWZ-4B is available at Aetrix Electronics and suitable for professional audio equipment, automotive infotainment systems, and studio-grade audio interfaces requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 compliance.
Supply support for ADSP-21489KSWZ-4B 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 deep expertise in precision signal processing for audio, industrial, and automotive markets.
The ADSP-21489KSWZ-4B belongs to the SHARC® family - a line of SIMD-capable floating-point DSPs engineered specifically for deterministic, low-latency audio signal processing with integrated digital audio peripherals and memory subsystems.
FAQ
What is the maximum operating frequency of the ADSP-21489KSWZ-4B?
The ADSP-21489KSWZ-4B is rated for a maximum operating frequency of 450 MHz under specified thermal and voltage conditions. This enables benchmark performance of 20.44 μs for a 1024-point complex FFT and 1.1 ns per FIR tap in SIMD mode. The device achieves this speed using a 1.2 V core supply and requires proper thermal management via its exposed pad (EPAD) in the 176-lead LQFP package.
Does the ADSP-21489KSWZ-4B include factory-programmed audio decoders?
Yes, the ADSP-21489KSWZ-4B includes 4 Mbits of mask-programmed ROM containing certified Dolby® and DTS® multichannel audio decoding and post-processing algorithms. These decoders are pre-validated and execute directly from ROM, eliminating external memory dependencies and reducing boot time in professional and consumer audio products.
How many asynchronous sample rate converters (ASRCs) does the ADSP-21489KSWZ-4B support?
The ADSP-21489KSWZ-4B integrates four independent asynchronous sample rate converters (ASRC0–ASRC3), each capable of bidirectional conversion between arbitrary sample rates (e.g., 44.1 kHz ↔ 48 kHz ↔ 192 kHz) with –128 dB THD+N performance. They operate autonomously via the DAI, requiring no CPU cycles for data movement or rate negotiation.
Is the ADSP-21489KSWZ-4B qualified for automotive applications?
Yes, the ADSP-21489KSWZ-4B is AEC-Q100 qualified for Grade 3 (–40°C to +105°C ambient), making it suitable for automotive infotainment head units, digital cockpit audio processors, and active noise cancellation ECUs. Its thermal diode, ROM security, and robust peripheral set meet OEM functional safety and reliability requirements.
What package type is used for the ADSP-21489KSWZ-4B?
The ADSP-21489KSWZ-4B uses a 176-lead LQFP_EP (exposed pad) package with 0.5 mm pitch and 24 × 24 mm body size. This package provides full access to all peripherals - including 8 SPORTs, S/PDIF, 4 ASRCs, DAI pins, external port (SDRAM/AMI), JTAG, and thermal diode - and supports thermal dissipation required for sustained 450 MHz operation.
ADSP-21489KSWZ-4B 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:
- 400MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 5Mbit
- 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:
- 176-LQFP-EP (24x24)
ADSP-21489KSWZ-4B FAQ
1.How can I place an order for ADSP-21489KSWZ-4B through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-21489KSWZ-4B 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-21489KSWZ-4B reliable?
The price and inventory of ADSP-21489KSWZ-4B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-21489KSWZ-4B is usually 5 days.
3.What payment methods are accepted for ADSP-21489KSWZ-4B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21489KSWZ-4B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-21489KSWZ-4B?
ADSP-21489KSWZ-4B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-21489KSWZ-4B 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-21489KSWZ-4B?
For technical support, including ADSP-21489KSWZ-4B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21489KSWZ-4B requirements.
6.How does Aetrix verify that ADSP-21489KSWZ-4B is sourced from the original manufacturer or authorized distributors?
All ADSP-21489KSWZ-4B 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-21489KSWZ-4B meets industry standards.
7.What is the process for return or replacement of ADSP-21489KSWZ-4B?
All ADSP-21489KSWZ-4B units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21489KSWZ-4B, 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-21489KSWZ-4B part is unused and in its original packaging.
Return procedure for ADSP-21489KSWZ-4B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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