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Analog Devices Inc. AD21489WBSWZ402RL
- Part No.:
- AD21489WBSWZ402RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 176-LQFP Exposed Pad
- Datasheet:
-
AD21489WBSWZ402RL.pdf
- Description:
- SHARC WITH 5 MB ON CHIP RAM 400M
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AD21489WBSWZ402RL 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 on-chip SRAM and 4 Mbits mask-ROM. It integrates eight serial ports (SPORT), S/PDIF transceiver, four asynchronous sample rate converters (ASRC), digital applications interface (DAI), and precision clock generators (PCG) for multichannel audio systems in automotive infotainment and professional audio equipment.
For engineers reviewing the AD21489WBSWZ402RL datasheet, AD21489WBSWZ402RL pinout, AD21489WBSWZ402RL application, or AD21489WBSWZ402RL equivalent, key selection criteria include its AEC-Q100 qualification, SIMD computational architecture delivering 2.7 GFLOPS, 176-lead LQFP_EP package with thermal diode, and support for VISA instruction compression to reduce code footprint in memory-constrained embedded audio designs.
Technical Context
The AD21489WBSWZ402RL implements a dual-processing-element (PEx/PEy) SIMD core with independent ALU, multiplier, shifter, and 16×40-bit register files per element, enabling parallel execution of identical instructions on distinct data streams. Its enhanced Harvard architecture supports simultaneous 64-bit PM and DM bus transfers plus instruction cache fetch - sustaining full-speed FIR (1.1 ns/tap) and FFT (20.44 μs for 1024-pt) performance at 450 MHz.
Peripherally, it features two clock domains: a core domain with JTAG debug, periodic timer, and thermal diode; and an I/O processor domain with DAI (including PCG, IDP/PDAP, S/PDIF Tx/Rx), DPI (SPI, TWI, UART, PWM), ASRC, and external port supporting AMI/SDRAM controllers - all routed via flexible signal routing units (SRU) for configurable interconnect without external logic.
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 | 450 MHz - enables 2.7 GFLOPS peak compute for real-time audio algorithms |
| On-Chip Memory | 5 Mbits SRAM + 4 Mbits ROM - supports large filter banks, delay lines, and preloaded Dolby/DTS decoders |
| Peripheral Integration | 8 SPORTs, S/PDIF Tx/Rx, 4 ASRCs, 4 PWM units, DAI/DPI with SRU - eliminates external glue logic in audio subsystems |
| Package & Thermal | 176-lead LQFP_EP with exposed pad - provides thermal diode for junction temperature monitoring in automotive environments |
| Automotive Qualification | AEC-Q100 Grade 2 (–40°C to +105°C) - validated for under-hood infotainment and ADAS audio processing |
| Instruction Set | VISA-enabled (16/32/48-bit) - reduces code size by up to 30% vs legacy ISA, easing SDRAM footprint constraints |
Pinout & Package
AD21489WBSWZ402RL is housed in a 176-lead LQFP_EP (Lead Frame Chip Scale Package with Exposed Pad), measuring 24 mm × 24 mm × 1.4 mm, with thermal pad for PCB-level heat dissipation and RoHS-compliant matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND / AGND | Power Ground / Analog Ground | Separate ground planes required to isolate digital switching noise from sensitive analog audio paths |
| VDD_INT / VDD_IO | Core Voltage (1.1 V) / I/O Voltage (3.3 V) | Dual-supply operation mandates independent low-noise regulators and sequencing (VDD_IO before VDD_INT) |
| CLKIN / CLKOUT | External Clock Input / Buffered Output | Accepts 1–50 MHz crystal or LVDS reference; CLKOUT drives PCG or synchronizes external codecs |
| DAI_P0–P7 | Digital Applications Interface Pins | Configurable as S/PDIF Tx/Rx, ASRC data lanes, or IDP/PDAP parallel/serial I/O - routed via SRU |
| SPORT0–7_FS, _CLK, _DT | Serial Port Frame Sync / Clock / Data | Supports TDM, I²S, left-justified formats up to 200 Mbps; each SPORT independently assignable to DAI/DPI |
| EP_A[19:0], EP_D[31:0] | External Port Address/Data Bus | Glueless interface to SDRAM (banks 0–3) or AMI devices; 16-bit wide, supports burst reads/writes |
| JTAG_TCK/TMS/TDI/TDO | IEEE 1149.1 Test Access Port | Enables real-time debugging, boundary scan, and secure emulation only after 64-bit ROM key authentication |
Key Features
| Feature | Design Value |
|---|---|
| SIMD Computational Engine | Parallel PEx/PEy execution delivers 2× throughput on FIR, IIR, and FFT vs SISD mode - critical for multi-zone automotive audio |
| Digital Applications Interface (DAI) | Hardware-accelerated S/PDIF transceiver + 4 ASRCs enable sample-rate conversion between 32 kHz–192 kHz domains without CPU overhead |
| VISA Instruction Compression | 16/32-bit opcodes reduce program memory footprint by ~25%, allowing more algorithms in limited on-chip ROM or SDRAM |
| AEC-Q100 Automotive Qualification | Validated for Grade 2 temperature range (–40°C to +105°C) and automotive EMI/ESD stress - suitable for head unit and amplifier modules |
| ROM-Based Security | Prevents unauthorized firmware extraction via JTAG; requires customer-specific 64-bit key for debug access - protects proprietary audio algorithms |
Applications
| Professional Audio Mixing Console | Automotive Infotainment Head Unit |
|---|---|
Use Scenario: Real-time mixing of >64 channels with dynamic EQ, reverb, and loudness compensation across multiple speaker zones. IC Role / Device Role / Timing Role: Primary audio DSP executing multithreaded VISA-optimized algorithms with deterministic latency under 50 μs. Use Value: On-chip 5 Mbits SRAM stores full impulse responses and coefficient tables; DAI routes 8 SPORTs to ADC/DAC arrays without external FIFOs. |
Use Scenario: Integrated audio processing in AEC-Q100-certified head units supporting Bluetooth streaming, voice assistant wake-word detection, and surround sound decoding. IC Role / Device Role / Timing Role: AEC-Q100-qualified SHARC® DSP handling Dolby Atmos decoding, ASRC synchronization between Bluetooth and CAN bus audio sources, and thermal-aware power management. Use Value: Factory-programmed ROM includes licensed Dolby/DTS decoders; thermal diode enables dynamic clock scaling during high-CPU-load navigation rendering. |
| Medical Ultrasound Beamformer | Industrial Audio Analytics Edge Node |
Use Scenario: Digital beamforming and harmonic imaging in portable ultrasound systems requiring low-latency FIR filtering and FFT-based Doppler analysis. IC Role / Device Role / Timing Role: High-precision floating-point DSP performing real-time 1024-pt FFTs (20.44 μs) and 256-tap FIR filters (282 ns total) on RF echo data streams. Use Value: 450 MHz core + SIMD architecture achieves >2× throughput vs prior SHARC generations; on-chip ROM stores calibration coefficients for probe-specific compensation. |
Use Scenario: Acoustic anomaly detection in factory machinery using spectral feature extraction and neural network inference on vibration audio signatures. IC Role / Device Role / Timing Role: Low-power audio preprocessing engine capturing wideband microphone data via SPORT, extracting MFCCs, and feeding lightweight CNN models. Use Value: VISA compression allows full feature extraction pipeline in 4 Mbits ROM; ASRCs align microphone sampling rates across distributed sensor nodes. |
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 |
|---|---|---|---|
| AD21486WBSWZ402RL | Same 176-lead LQFP_EP package but max 400 MHz clock; 5 Mbits SRAM/4 Mbits ROM; no SDRAM controller in 176-lead variant | Targeted at cost-sensitive pro-audio gear where 450 MHz headroom is unnecessary; lacks SDRAM support for large buffer applications | Select when thermal/power budget limits require lower frequency or external memory expansion is not needed |
| AD21479WBSWZ402RL | SHARC+ core (not SHARC); 400 MHz; 2.5 Mbits SRAM; no ROM; supports DDR2/DDR3 (not SDRAM); different pinout and memory map | Designed for newer platforms needing DDR interfaces and higher instruction efficiency; incompatible software migration path | Choose for greenfield designs prioritizing DDR bandwidth over legacy ROM decoder compatibility |
Compared with AD21486WBSWZ402RL and AD21479WBSWZ402RL, the AD21489WBSWZ402RL uniquely combines AEC-Q100 qualification, 450 MHz performance, factory-loaded audio decoders, and SDRAM support in a pin-compatible 176-LQFP_EP footprint - making it the only drop-in solution for upgrading existing automotive SHARC-based head units to higher channel count and lower latency.
Availability
AD21489WBSWZ402RL is available at Aetrix Electronics and suitable for automotive infotainment, professional audio mixing consoles, and medical ultrasound beamformers requiring stable component supply across extended product lifecycles.
Supply support for AD21489WBSWZ402RL 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 communications infrastructure.
The ADSP-2148x SHARC® family was designed specifically for computationally intensive, low-latency audio signal processing - integrating specialized peripherals like ASRC, S/PDIF, and DAI to eliminate external components in premium audio systems.
FAQ
What is the maximum operating frequency of the AD21489WBSWZ402RL?
The AD21489WBSWZ402RL operates at up to 450 MHz, enabling 2.7 GFLOPS peak performance for real-time audio processing. This frequency is validated across the full AEC-Q100 Grade 2 temperature range (–40°C to +105°C) and supported by its 1.1 V core supply and thermal diode monitoring. The AD21489WBSWZ402RL achieves this speed while maintaining IEEE 754-compliant 32-bit single-precision and 40-bit extended-precision floating-point accuracy.
Does the AD21489WBSWZ402RL include factory-programmed audio decoders?
Yes, the AD21489WBSWZ402RL includes 4 Mbits of mask-programmed ROM containing licensed Dolby® and DTS® multichannel audio decoding and post-processing algorithms. These decoders are pre-verified for bit-exact compliance and accessible directly from boot without external flash. The AD21489WBSWZ402RL ROM content is fixed at manufacture and cannot be modified in the field.
What package type and thermal features does the AD21489WBSWZ402RL use?
The AD21489WBSWZ402RL uses a 176-lead LQFP_EP package with an exposed thermal pad, measuring 24 mm × 24 mm × 1.4 mm. It integrates an on-die thermal diode calibrated to ±2°C accuracy, enabling real-time junction temperature monitoring via external ADC. This feature is essential for AEC-Q100-compliant thermal management in automotive amplifier modules and head units.
Is the AD21489WBSWZ402RL pin-compatible with other ADSP-2148x processors?
The AD21489WBSWZ402RL shares the same 176-lead LQFP_EP package and pinout with ADSP-21483, ADSP-21488, and ADSP-21486 variants in the same package option. However, functional differences exist: AD21489WBSWZ402RL enables SDRAM controller and 450 MHz operation, whereas AD21486WBSWZ402RL in 176-LQFP_EP disables SDRAM. Pin compatibility does not guarantee full functional interchangeability without firmware and hardware review.
How does VISA instruction compression benefit designs using the AD21489WBSWZ402RL?
VISA compression in the AD21489WBSWZ402RL reduces program memory footprint by up to 30% through 16-bit and 32-bit opcodes, lowering SDRAM usage and boot time. It maintains full backward compatibility with legacy 48-bit ISA code and is supported for execution from bank 0 only. The AD21489WBSWZ402RL's VISA decoder operates transparently - no runtime penalty - and is enabled via compiler toolchain flags during build.
AD21489WBSWZ402RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SHARC®
- Package/Case:
- 176-LQFP Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 176-LQFP-EP (24x24)
AD21489WBSWZ402RL FAQ
1.How can I place an order for AD21489WBSWZ402RL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD21489WBSWZ402RL 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 AD21489WBSWZ402RL reliable?
The price and inventory of AD21489WBSWZ402RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD21489WBSWZ402RL is usually 5 days.
3.What payment methods are accepted for AD21489WBSWZ402RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD21489WBSWZ402RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD21489WBSWZ402RL?
AD21489WBSWZ402RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD21489WBSWZ402RL 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 AD21489WBSWZ402RL?
For technical support, including AD21489WBSWZ402RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD21489WBSWZ402RL requirements.
6.How does Aetrix verify that AD21489WBSWZ402RL is sourced from the original manufacturer or authorized distributors?
All AD21489WBSWZ402RL 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 AD21489WBSWZ402RL meets industry standards.
7.What is the process for return or replacement of AD21489WBSWZ402RL?
All AD21489WBSWZ402RL units undergo pre-shipment inspection (PSI). If there is an issue with AD21489WBSWZ402RL, 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 AD21489WBSWZ402RL part is unused and in its original packaging.
Return procedure for AD21489WBSWZ402RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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