My Inquiry
My Account
Analog Devices Inc. ADSP-21478BSWZ-2A
- Part No.:
- ADSP-21478BSWZ-2A
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP Exposed Pad
- Datasheet:
-
ADSP-21478BSWZ-2A.pdf
- Description:
- IC DSP SHARC 266MHZ LP 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,314
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADSP-21478BSWZ-2A from Analog Devices is a 32-bit/40-bit floating-point SHARC® DSP optimized for high-performance audio processing, operating at up to 300 MHz with 3 Mbits of on-chip SRAM and 4 Mbits of factory-programmed ROM containing Dolby/DTS audio decoders. 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.
For engineers reviewing the ADSP-21478BSWZ-2A datasheet, ADSP-21478BSWZ-2A pinout, ADSP-21478BSWZ-2A application, or ADSP-21478BSWZ-2A equivalent, this processor supports AEC-Q100 automotive qualification, real-time audio decoding, FIR/IIR/FFT acceleration, and code compatibility across the SHARC family - critical for professional audio systems, automotive infotainment, and industrial signal processing designs requiring deterministic low-latency execution.
Technical Context
The ADSP-21478BSWZ-2A implements a dual-processing-element SIMD core with independent ALU, multiplier, and shifter in each unit, enabling parallel 32-bit/40-bit floating-point operations at 300 MHz. Its enhanced Harvard architecture sustains simultaneous 64-bit PM and DM bus transfers plus instruction cache fetches - delivering 1.8 GFLOPS peak performance.
It features two clock domains: a 300 MHz core domain with JTAG debug support and periodic timer, and a peripheral domain with DAI/DPI routing, S/PDIF Tx/Rx, PCG, ASRC, PWM, and TWI/SPI/UART interfaces. The 88-lead LFCSP_VQ package excludes external port (SDRAM/AMI) pins per Table 2, limiting memory expansion to on-chip resources and serial interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Frequency | Up to 300 MHz - enables real-time execution of 1024-point FFT in 30.59 μs and FIR filter per tap in 1.66 ns. |
| Floating-Point Precision | 32-bit single-precision and 40-bit extended-precision - supports high-dynamic-range audio processing without overflow in cascaded IIR filters. |
| On-Chip Memory | 3 Mbits SRAM + 4 Mbits ROM - provides dedicated code/data storage for bootable audio decoder firmware and low-latency algorithm buffers. |
| Digital Interfaces | 8 SPORTs, 1 S/PDIF transceiver, 4 ASRCs, 2 SPI, 1 UART, 1 TWI - enables direct connection to ADC/DAC, digital audio transports, and control peripherals without external glue logic. |
| Audio Acceleration | FIR/IIR/FFT hardware accelerators - offloads 90%+ of compute-intensive filtering and spectral analysis from main core, preserving bandwidth for user application code. |
| Automotive Qualification | AEC-Q100 Grade 2 (–40°C to +105°C) - validated for under-hood infotainment head units and active noise cancellation modules. |
| Instruction Architecture | VISA (16/32/48-bit) - reduces program memory footprint by up to 40% vs legacy ISA, critical for ROM-constrained boot images. |
Pinout & Package
ADSP-21478BSWZ-2A uses an 88-lead LFCSP_VQ (Lead Frame Chip Scale Package, Very Thin Quad) with 0.5 mm pitch, thermal pad exposed on underside for PCB heat dissipation. Package dimensions: 12 mm × 12 mm × 0.8 mm (max). Not compatible with 100-LQFP or 196-BGA pinouts - external port (SDRAM/AMI) pins are omitted per datasheet Table 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FLAG0–FLAG7 | General-purpose I/O / interrupt flags | Configurable as GPIO or hardware interrupt inputs; FLAG3 doubles as core timer expiration output. |
| SPORT0–SPORT7 | Serial port data/clock/control | Eight full-duplex synchronous serial interfaces supporting I²S, TDM, and custom audio frame formats up to 100 Mbps aggregate. |
| SDATA_IN/SDATA_OUT | S/PDIF transceiver data lines | Direct connection to coaxial/optical S/PDIF receivers/transmitters; supports consumer/professional audio bitstream transport. |
| ASRC0–ASRC3 | Asynchronous sample rate converter I/O | Four independent ASRC blocks accept input streams at arbitrary rates (e.g., 44.1 kHz, 48 kHz, 96 kHz) and output synchronized to system clock. |
| PCG0–PCG3 | Precision clock generator outputs | Four programmable clock sources (±50 ppm stability) for driving external ADCs/DACs, eliminating need for discrete oscillators. |
| DAI_PIN0–DAI_PIN19 | Digital applications interface routing pins | 20-pin flexible signal routing unit enabling internal interconnection of peripherals (e.g., route SPORT0 output to ASRC0 input). |
Key Features
| Feature | Design Value |
|---|---|
| Dual SIMD Processing Elements (PEx/PEy) | Enables true parallel execution of identical instructions on independent data streams - essential for stereo/multi-channel audio processing with zero cycle overhead. |
| Factory-Programmed Audio ROM | 4 Mbits of preloaded Dolby Digital, DTS, and MPEG audio decoder firmware - eliminates external flash, reduces BOM cost, and ensures certified codec compliance. |
| Digital Applications Interface (DAI) | Hardware-configurable signal routing between 20 DAI pins and 14 DPI pins - replaces FPGA glue logic for inter-peripheral connectivity in compact audio systems. |
| Thermal Diode Integration | On-die temperature sensor with ±2°C accuracy - enables closed-loop thermal management in sealed automotive enclosures without external sensors. |
| JTAG Emulation Support | Full boundary-scan and real-time debugging via ICE-1000/2000 emulators - allows non-intrusive breakpoint insertion and register inspection during live audio stream processing. |
Applications
| Professional Audio Mixer | Automotive Infotainment Head Unit |
|---|---|
Use Scenario: 32-channel digital mixing console with real-time effects (reverb, EQ, dynamics) and multi-format playback. IC Role / Device Role / Timing Role: Primary audio processing engine executing time-critical FIR filters, FFT-based spectrum analysis, and Dolby Atmos decoding in deterministic sub-100 μs latency. Use Value: On-chip 3 Mbits SRAM stores all channel state buffers and coefficient tables; VISA compression reduces ROM footprint by 35%, enabling full codec suite within 4 Mbits. |
Use Scenario: In-vehicle multimedia system supporting Bluetooth audio, HDMI ARC, and AM/FM tuner with active road noise cancellation. IC Role / Device Role / Timing Role: Central DSP handling concurrent S/PDIF input (TV), ASRC-resampled Bluetooth stream, and real-time ANC feedback loop at 96 kHz sampling rate. Use Value: Four integrated ASRCs eliminate external resampling ICs; AEC-Q100 qualification ensures operation at 105°C ambient under dashboard conditions. |
| Studio Monitor Controller | Industrial Audio Analytics Edge Node |
Use Scenario: High-fidelity studio monitor with room correction, speaker protection, and THX certification processing. IC Role / Device Role / Timing Role: Real-time acoustic measurement engine performing impulse response capture, convolution-based room EQ, and dynamic limiter control. Use Value: Dual 64-bit PM/DM buses sustain 2×64-bit memory transfers per cycle - enabling simultaneous loading of 128-tap FIR coefficients and audio samples without pipeline stalls. |
Use Scenario: Factory-floor sound monitoring node detecting bearing faults or motor anomalies via spectral signature analysis. IC Role / Device Role / Timing Role: Standalone edge processor capturing 4-channel analog audio, running continuous FFT/cepstrum analysis, and triggering MQTT alerts on anomaly detection. Use Value: Integrated thermal diode and watchdog timer ensure reliable unattended operation; 88-LFCSP_VQ package enables compact conformal-coated PCB design for harsh industrial environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DSP audio processing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-21479BSWZ-3A | 5 Mbits SRAM, 196-BGA package with SDRAM controller and RTC - no ROM; requires external flash for codecs. | Preferred for systems needing >3 Mbits buffer memory and external SDRAM expansion (e.g., multi-zone automotive audio). | Select when larger on-chip RAM and external memory interface outweigh ROM convenience and LFCSP thermal advantages. |
| ADSP-21477BSWZ-2A | 2 Mbits SRAM, no ROM, 100-LQFP package - lacks ASRCs, S/PDIF, and automotive qualification. | Suitable for cost-sensitive non-automotive audio products where codec licensing is handled externally. | Choose only if AEC-Q100 is unnecessary and system-level ROM integration is feasible via external SPI flash. |
Compared with ADSP-21478BSWZ-2A, the ADSP-21479BSWZ-3A trades factory-programmed audio ROM for greater RAM and SDRAM support, while the ADSP-21477BSWZ-2A sacrifices audio peripherals and qualification for lower cost - making ADSP-21478BSWZ-2A the optimal balance of integrated audio features, automotive readiness, and compact packaging.
Availability
ADSP-21478BSWZ-2A is available at Aetrix Electronics and suitable for professional audio equipment, automotive infotainment systems, and industrial audio analytics requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant silicon.
Supply support for ADSP-21478BSWZ-2A 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 DSP technologies for precision signal processing applications.
The SHARC® processor family - including ADSP-21478BSWZ-2A - was designed specifically for computationally intensive, low-latency audio and industrial signal processing, emphasizing deterministic real-time execution, integrated audio peripherals, and automotive-grade reliability.
FAQ
What is the maximum operating frequency of the ADSP-21478BSWZ-2A?
The ADSP-21478BSWZ-2A operates at up to 300 MHz, enabling real-time execution of complex audio algorithms such as 1024-point FFT in 30.59 μs and FIR filtering at 1.66 ns per tap. This frequency is guaranteed across the full industrial temperature range (–40°C to +105°C) and supports deterministic timing for audio streaming applications requiring sub-100 μs latency.
Does the ADSP-21478BSWZ-2A include factory-programmed audio decoders?
Yes, the ADSP-21478BSWZ-2A includes 4 Mbits of factory-programmed ROM containing licensed Dolby Digital and DTS audio decoders. This eliminates the need for external flash memory and simplifies system design for certified audio playback in automotive and professional equipment - all decoder firmware is pre-validated and ready-to-run upon power-up.
Which package type does the ADSP-21478BSWZ-2A use, and what are its key mechanical features?
The ADSP-21478BSWZ-2A uses an 88-lead LFCSP_VQ package (12 mm × 12 mm × 0.8 mm max height) with 0.5 mm pitch and exposed thermal pad. This thermally enhanced package supports efficient heat dissipation in sealed enclosures and omits external port pins - confirming it is not compatible with SDRAM or AMI interfaces per datasheet Table 2.
Is the ADSP-21478BSWZ-2A qualified for automotive applications?
Yes, the ADSP-21478BSWZ-2A is AEC-Q100 qualified for Grade 2 (–40°C to +105°C), making it suitable for under-hood and dashboard-mounted automotive infotainment systems. Its integrated thermal diode, watchdog timer, and robust ESD tolerance (±2 kV HBM) meet stringent automotive reliability requirements without additional protection circuitry.
How many serial ports (SPORTs) does the ADSP-21478BSWZ-2A support, and what protocols are compatible?
The ADSP-21478BSWZ-2A supports eight full-duplex synchronous serial ports (SPORT0–SPORT7), each configurable for I²S, left-justified, right-justified, or custom TDM frame formats. These ports operate at up to 100 Mbps aggregate data rate and integrate hardware framing, DMA triggers, and automatic word-length detection - enabling direct connection to multi-channel ADCs, DACs, and digital audio transceivers.
ADSP-21478BSWZ-2A 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:
- DAI, DPI, EBI/EMI, I2C, SPI, SPORT, UART/USART
- Clock Rate:
- 266MHz
- Non-Volatile Memory:
- ROM (4Mbit)
- On-Chip RAM:
- 3Mbit
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 1.20V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-LQFP-EP (14x14)
ADSP-21478BSWZ-2A FAQ
1.How can I place an order for ADSP-21478BSWZ-2A through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-21478BSWZ-2A 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-21478BSWZ-2A reliable?
The price and inventory of ADSP-21478BSWZ-2A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-21478BSWZ-2A is usually 5 days.
3.What payment methods are accepted for ADSP-21478BSWZ-2A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21478BSWZ-2A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-21478BSWZ-2A?
ADSP-21478BSWZ-2A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-21478BSWZ-2A 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-21478BSWZ-2A?
For technical support, including ADSP-21478BSWZ-2A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21478BSWZ-2A requirements.
6.How does Aetrix verify that ADSP-21478BSWZ-2A is sourced from the original manufacturer or authorized distributors?
All ADSP-21478BSWZ-2A 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-21478BSWZ-2A meets industry standards.
7.What is the process for return or replacement of ADSP-21478BSWZ-2A?
All ADSP-21478BSWZ-2A units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21478BSWZ-2A, 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-21478BSWZ-2A part is unused and in its original packaging.
Return procedure for ADSP-21478BSWZ-2A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADSP-21478BSWZ-2A 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…
