My Inquiry
My Account
Analog Devices Inc. ADSP-21489BSWZ-4A
- Part No.:
- ADSP-21489BSWZ-4A
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP Exposed Pad
- Datasheet:
-
ADSP-21489BSWZ-4A.pdf
- Description:
- IC SHARC AUDIO DSP 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:137
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADSP-21489BSWZ-4A 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-programmed ROM. It integrates dual SIMD computational units (PEx/PEy), eight serial ports (SPORTs), S/PDIF transceiver, four asynchronous sample rate converters (ASRCs), and digital applications interface (DAI) with precision clock generators. It targets professional audio mixing consoles, automotive infotainment systems, and studio-grade effects processors.
For engineers reviewing the ADSP-21489BSWZ-4A datasheet, ADSP-21489BSWZ-4A pinout, ADSP-21489BSWZ-4A application, or ADSP-21489BSWZ-4A equivalent, key selection considerations include its 450 MHz core frequency, 5 Mbit on-chip RAM allocation, 176-lead LQFP_EP package with thermal pad, AEC-Q100 qualification, and native support for VISA instruction compression and SIMD-accelerated FIR/IIR/FFT operations.
Technical Context
The ADSP-21489BSWZ-4A implements a dual-processing-element SIMD architecture where PEx is always active and PEy is enabled via MODE1.PEYEN, enabling parallel execution of identical instructions on independent data streams. Its enhanced Harvard architecture sustains simultaneous 64-bit PM and DM bus transfers plus instruction cache fetches-achieving 2.7 GFLOPS at 450 MHz.
Peripherals are partitioned into core and I/O processor domains: the core domain hosts JTAG, timer, and memory subsystems, while the I/O domain manages DAI (with PCG, IDP/PDAP, S/PDIF), DPI (SPI/TWI/UART/PWM), SPORTs, ASRCs, and external port logic. The 176-lead LQFP_EP package includes dedicated SDRAM and AMI controllers, supporting up to 64M words per bank in synchronous mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Frequency | 450 MHz maximum - enables real-time execution of 1024-point complex FFT in 20.44 μs and FIR filtering at 1.1 ns/tap. |
| On-Chip Memory | 5 Mbits SRAM + 4 Mbits ROM - supports 160k × 32-bit data or 106.7k × 48-bit instructions; configurable as mixed word sizes with single-cycle access. |
| Digital Peripherals | 8 SPORTs, 4 ASRCs, S/PDIF Tx/Rx, 4 PWM units, 1 UART, 2 SPI, 1 TWI, 2 PCGs - enables multichannel audio I/O with sample rate translation and digital interconnect. |
| External Interface | 16-bit SDRAM + AMI controller - supports glueless connection to industry-standard SDRAM (64M words/bank) and asynchronous memory (6M–8M words/bank). |
| Package & Thermal | 176-lead LQFP_EP with exposed thermal pad - rated for industrial temperature range (−40°C to +85°C) and qualified to AEC-Q100 Grade 2 (−40°C to +105°C). |
| Instruction Set | VISA (16/32/48-bit) + legacy SHARC ISA - reduces code size by up to 30% vs. pure 48-bit ISA; supports compressed instruction fetch from SDRAM bank 0 only. |
| Security | ROM-based boot security with 64-bit JTAG key - prevents unauthorized external code loading and restricts JTAG access until correct key is scanned. |
Pinout & Package
ADSP-21489BSWZ-4A is housed in a 176-lead LQFP_EP (Lead Frame Chip Scale Package with Exposed Pad) measuring 24 mm × 24 mm × 1.4 mm, featuring an exposed thermal pad for enhanced heat dissipation and compliance with AEC-Q100 automotive reliability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pins 1–4, 173–176) | Power Ground | Low-impedance return path for analog/digital core power domains; must be connected to solid ground plane under thermal pad. |
| VDD_IO (Pins 5–12, 165–172) | I/O Supply | 3.3 V supply for all digital I/O banks (SPORT, SPI, TWI, UART, DAI); decoupling required within 1 cm of each pin group. |
| VDD_CORE (Pins 13–20, 157–164) | Core Supply | 1.2 V supply for 450 MHz SIMD core; requires low-noise regulation and tight layout control to meet timing margins. |
| CLKIN (Pin 21) | Reference Clock Input | Accepts 1–50 MHz crystal or CMOS clock; feeds PLL to generate 450 MHz CCLK and PCLK domains. |
| RESET (Pin 22) | Asynchronous Reset | Active-low signal that initializes core, peripherals, and memory controllers; must be held low for ≥100 ns after power stabilization. |
| BOOT_CFG[2:0] (Pins 23–25) | Boot Configuration | Defines boot source (ROM, external SDRAM, or SPI flash); tied to VDD_IO/GND during reset to select default mode. |
| DAI_PIN[7:0] (Pins 26–33) | Digital Applications Interface | Configurable as S/PDIF Tx/Rx, PCG outputs, IDP/PDAP data lanes, or ASRC I/O - routed via Signal Routing Unit (SRU) for flexible audio topology. |
| SPORT0–SPORT7 (Pins 34–57, 130–145) | Serial Port Interface | Eight independent full-duplex SPORTs supporting TDM, I²S, and custom protocols; each with independent clocks, framesyncs, and DMA channels. |
| EP_D[15:0] (Pins 58–73) | External Port Data Bus | 16-bit bidirectional data bus for SDRAM/AMI access; operates at up to 133 MHz with programmable timing for slow devices. |
| EP_A[22:0] (Pins 74–95) | External Port Address Bus | 23-bit address bus supporting 64M-word SDRAM banks and 8M-word AMI banks; multiplexed with control signals in SDRAM mode. |
| JTAG_TCK/TMS/TDI/TDO (Pins 146–149) | Boundary Scan & Debug | IEEE 1149.1-compliant interface for emulation, flash programming, and real-time debugging; secured by 64-bit key authentication. |
Key Features
| Feature | Design Value |
|---|---|
| Dual SIMD Processing Elements (PEx/PEy) | Enables parallel execution of identical arithmetic/logic operations on independent data streams - doubles throughput for FIR, IIR, and FFT kernels without software restructuring. |
| VISA Instruction Compression | Reduces program memory footprint by up to 30% using 16-/32-bit opcodes while maintaining full backward compatibility with legacy SHARC ISA code. |
| Integrated Digital Applications Interface (DAI) | Provides hardware-configurable routing between S/PDIF, ASRCs, PCGs, and IDP/PDAP - eliminates external glue logic for multichannel audio routing and clock domain bridging. |
| On-Chip ROM Security | Prevents unauthorized readout of boot code and disables JTAG debug until authenticated 64-bit key is scanned - meets automotive OEM secure boot requirements. |
| AEC-Q100 Grade 2 Qualification | Validated for operation from −40°C to +105°C with extended life testing - suitable for under-hood automotive audio amplifiers and head unit main processors. |
Applications
| Professional Audio Mixer | Automotive Infotainment Head Unit |
|---|---|
Use Scenario: Real-time mixing of 64-channel live audio with dynamic EQ, reverb, and loudness compensation. IC Role / Device Role / Timing Role: Primary audio DSP executing time-critical FIR filters, convolution-based reverb, and ASRC-based sample rate adaptation across input/output domains. Use Value: 450 MHz core + 5 Mbit SRAM enables sub-100 μs latency for 96 kHz/24-bit processing; DAI routing eliminates external serializer/deserializer ICs. |
Use Scenario: Central audio processor in premium vehicle head unit handling Bluetooth A2DP, USB audio, tuner, and amplifier control. IC Role / Device Role / Timing Role: Audio subsystem controller managing S/PDIF output to amplifier, ASRC conversion between Bluetooth (44.1 kHz) and tuner (48 kHz), and PWM-driven display backlight dimming. Use Value: Integrated S/PDIF transceiver and four ASRCs eliminate discrete level-shifting and clock-domain isolation components; AEC-Q100 rating ensures reliability in cabin thermal environments. |
| Studio Effects Processor | Medical Ultrasound Beamformer |
Use Scenario: Rack-mount multi-effects unit applying parametric EQ, pitch shifting, and harmonic synthesis to instrument signals. IC Role / Device Role / Timing Role: High-precision floating-point engine performing 40-bit extended-precision calculations for zero-latency pitch tracking and formant preservation. Use Value: 40-bit floating-point ALU/multiplier ensures >140 dB SNR in dynamic range-sensitive effects; VISA compression allows larger algorithm libraries in limited flash space. |
Use Scenario: Real-time beamforming and RF signal conditioning in portable ultrasound systems with 128-channel transducer arrays. IC Role / Device Role / Timing Role: Secondary DSP offloading time-aligned FIR filtering and envelope detection from main ARM host, synchronized via SPORT DMA triggers. Use Value: Eight SPORTs enable direct connection to ADC/DAC ASICs with deterministic 16-bit/32-bit data streaming; thermal diode monitors junction temperature during sustained 450 MHz operation. |
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-21487BSWZ-4 | Same 176-lead LQFP_EP package and 5 Mbit RAM, but rated for 400 MHz max frequency and lacks AEC-Q100 qualification. | Suitable for cost-sensitive pro-audio gear where 450 MHz headroom and automotive temperature range are not required. | Select ADSP-21487BSWZ-4 when design budget constraints outweigh need for peak performance or automotive certification. |
| ADSP-21489KSWZ-4A | Identical electrical specs and pinout, but supplied in 176-lead LQFP_EP with lead-free (Pb-free) finish and extended temperature screening (−40°C to +105°C). | Required for medical or military programs mandating RoHS compliance and extended thermal validation beyond standard industrial grade. | Choose ADSP-21489KSWZ-4A when regulatory compliance (RoHS, REACH) or extended thermal margin is mandatory. |
Compared with ADSP-21487BSWZ-4 and ADSP-21489KSWZ-4A, the ADSP-21489BSWZ-4A uniquely balances 450 MHz performance, AEC-Q100 qualification, and standard industrial packaging-making it optimal for automotive infotainment and high-end consumer audio where both speed and reliability are non-negotiable.
Availability
ADSP-21489BSWZ-4A is available at Aetrix Electronics and suitable for professional audio equipment, automotive infotainment systems, and medical ultrasound beamformers requiring stable component supply across long production lifecycles.
Supply support for ADSP-21489BSWZ-4A 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 digital signal processing semiconductors, headquartered in Wilmington, MA, with design centers worldwide.
The ADSP-21489BSWZ-4A belongs to the SHARC® family of SIMD-capable floating-point DSPs, engineered specifically for computationally intensive, low-latency audio and sensor signal processing in automotive, professional, and industrial systems.
FAQ
What is the maximum operating frequency of the ADSP-21489BSWZ-4A?
The ADSP-21489BSWZ-4A is rated for a maximum core clock frequency of 450 MHz, enabling 2.7 GFLOPS of computational throughput in SIMD mode. This frequency is guaranteed across the full industrial temperature range (−40°C to +85°C) and validated under AEC-Q100 Grade 2 conditions (−40°C to +105°C). Performance benchmarks confirm 20.44 μs for 1024-point complex FFT and 1.1 ns per FIR tap at this speed.
Does the ADSP-21489BSWZ-4A support external SDRAM, and what are the interface limitations?
Yes, the ADSP-21489BSWZ-4A integrates a dedicated SDRAM controller supporting glueless connection to standard x16 or x32 SDRAM devices. It addresses up to 64M words per bank across four banks, with programmable timing parameters for slower memories. The interface uses a 16-bit data bus (EP_D[15:0]) and 23-bit address bus (EP_A[22:0]), and does not support x32-wide SDRAM devices per Analog Devices' specification.
How does the VISA instruction set improve code efficiency in the ADSP-21489BSWZ-4A?
VISA (Variable Instruction Set Architecture) in the ADSP-21489BSWZ-4A introduces 16-bit and 32-bit compressed opcodes alongside legacy 48-bit instructions, reducing program memory footprint by up to 30%. Code built with VISA option executes from SDRAM bank 0 only, and maintains full backward compatibility-enabling larger algorithm libraries without increasing external flash size or bandwidth demand.
Is the ADSP-21489BSWZ-4A pin-compatible with other ADSP-2148x family members?
The ADSP-21489BSWZ-4A shares the same 176-lead LQFP_EP package and pin assignment with ADSP-21483BSWZ-4, ADSP-21486BSWZ-4, and ADSP-21488BSWZ-4, making it mechanically and electrically pin-compatible. However, functional differences exist: ADSP-21489BSWZ-4A operates at 450 MHz (vs. 400 MHz for others) and includes AEC-Q100 qualification not present in non-automotive variants.
What security features does the ADSP-21489BSWZ-4A provide for firmware protection?
The ADSP-21489BSWZ-4A implements ROM-based boot security requiring a unique 64-bit key scanned via JTAG before enabling debug access or external code loading. When enabled, the processor boots exclusively from internal ROM and ignores unauthorized JTAG commands-meeting automotive OEM requirements for secure boot and intellectual property protection in production firmware.
ADSP-21489BSWZ-4A 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:
- 400MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 5Mbit
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 1.10V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-LQFP-EP (14x14)
ADSP-21489BSWZ-4A FAQ
1.How can I place an order for ADSP-21489BSWZ-4A through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-21489BSWZ-4A 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-21489BSWZ-4A reliable?
The price and inventory of ADSP-21489BSWZ-4A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-21489BSWZ-4A is usually 5 days.
3.What payment methods are accepted for ADSP-21489BSWZ-4A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21489BSWZ-4A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-21489BSWZ-4A?
ADSP-21489BSWZ-4A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-21489BSWZ-4A 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-21489BSWZ-4A?
For technical support, including ADSP-21489BSWZ-4A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21489BSWZ-4A requirements.
6.How does Aetrix verify that ADSP-21489BSWZ-4A is sourced from the original manufacturer or authorized distributors?
All ADSP-21489BSWZ-4A 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-21489BSWZ-4A meets industry standards.
7.What is the process for return or replacement of ADSP-21489BSWZ-4A?
All ADSP-21489BSWZ-4A units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21489BSWZ-4A, 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-21489BSWZ-4A part is unused and in its original packaging.
Return procedure for ADSP-21489BSWZ-4A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADSP-21489BSWZ-4A Tags
-
TMS320C5535AZAY10
Texas Instruments
-
TMS320VC5501PGF300
Texas Instruments
-
ADSP-BF592KCPZ
Analog Devices Inc.
-
ADAU1463WBCPZ150
Analog Devices Inc.
-
TMS320VC5402PGE100
Texas Instruments
-
ADAU1701JSTZ-RL
Analog Devices Inc.
-
ADAU1701JSTZ
Analog Devices Inc.
-
TMS320VC5502PGF300
Texas Instruments
-
ADAU1462WBCPZ300RL
Analog Devices Inc.
-
ADAU1452KCPZRL
Analog Devices Inc.
-
ADAU1452WBCPZ-RL
Analog Devices Inc.
-
TMS320C6747DZKB3
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
