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Home > Products > Integrated Circuits (ICs) > Embedded > DSP (Digital Signal Processors)

Analog Devices Inc. ADSP-21478KBCZ-3A

Name: ADSP-21478KBCZ-3A
Brand: Analog Devices Inc.
SKU: ADSP-21478KBCZ-3A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADSP-21478KBCZ-3A

Manufacturer:: Analog Devices Inc.

Category:: DSP (Digital Signal Processors)

Package:: 196-LFBGA, CSPBGA

Datasheet:: ADSP-21478KBCZ-3A.pdf

Description:: IC DSP SHARK 300MHZ 196CSBGA

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Product details

Overview

ADSP-21478KBCZ-3A 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-21478KBCZ-3A datasheet, ADSP-21478KBCZ-3A pinout, ADSP-21478KBCZ-3A application, or ADSP-21478KBCZ-3A equivalent, key selection considerations include its AEC-Q100 qualification for automotive infotainment, VISA instruction set support for code density improvement, SIMD-accelerated FIR/IIR/FFT execution, and 88-lead LFCSP_VQ package with thermal diode for thermal monitoring in compact audio systems.

Technical Context

The ADSP-21478KBCZ-3A implements a dual-processing-element SIMD core with independent ALU, multiplier, and shifter per element, enabling parallel 32-bit/40-bit floating-point operations at 300 MHz. Its enhanced Harvard architecture supports simultaneous 64-bit PM and DM bus transfers plus on-chip instruction cache for single-cycle fetch of one instruction and four operands.

Peripheral architecture includes two clock domains: core domain (PEx/PEy, DAG1/DAG2, JTAG, timer) and I/O processor domain (DAI/DPI, S/PDIF, ASRCs, PCGs, SPORTs 7–0, PWM 3–0). The DAI provides 20-pin signal routing capability, while the 88-lead LFCSP_VQ package excludes external port pins but retains thermal diode functionality.

Key Specifications

Parameter	Value and Actual Design Meaning
Core Frequency	Up to 300 MHz - enables 1.8 GFLOPS peak performance for real-time audio algorithms including FIR filtering at 1.66 ns/tap.
On-Chip Memory	3 Mbits SRAM + 4 Mbits ROM - supports full audio decoder stacks (Dolby/DTS) and large coefficient buffers without external memory latency.
Digital Peripherals	8 SPORTs, 1 S/PDIF Tx/Rx, 4 ASRCs, 4 PCGs - enables multi-channel audio I/O with independent sample rate conversion and jitter-free clock generation.
Processing Architecture	SIMD dual-core (PEx/PEy) with VISA support - reduces code size by up to 30% vs. legacy ISA and accelerates parallel data-path operations in audio pipelines.
Package & Thermal	88-lead LFCSP_VQ (12 mm × 12 mm) with integrated thermal diode - provides compact footprint for space-constrained automotive head units and supports real-time junction temperature monitoring.
Automotive Qualification	AEC-Q100 Grade 3 (−40°C to +85°C) - certified for use in automotive infotainment ECUs requiring functional safety-aware signal processing.
Security Features	ROM-based boot security with 64-bit JTAG key authentication - prevents unauthorized firmware extraction and enforces secure boot from internal ROM only.

Pinout & Package

ADSP-21478KBCZ-3A is housed in an 88-lead LFCSP_VQ (Lead Frame Chip Scale Package, Very Thin Quad) measuring 12 mm × 12 mm × 0.8 mm, with exposed thermal pad and lead pitch of 0.5 mm. This package omits external port (SDRAM/AMI) pins but retains all DAI/DPI peripherals, JTAG, and thermal diode functionality.

Pin/Terminal	Circuit Role	Design Meaning
FLAG0–FLAG7	General-purpose I/O / interrupt flags	Configurable as input/output or hardware interrupt sources; FLAG3 serves as core timer expiration signal.
SPORT0–SPORT7	Serial port transceivers	Eight independent full-duplex synchronous serial interfaces supporting I²S, TDM, and custom audio protocols up to 100 Mbps.
SDATA_IN/SDATA_OUT	S/PDIF transceiver data lines	Single-pin bidirectional S/PDIF interface compliant with IEC 60958; supports consumer/professional audio format detection and error recovery.
PCG0–PCG3	Precision clock generators	Four independent programmable clock outputs (0.1 Hz–100 MHz) with <±50 ppm stability; used for audio codec master clocks and ASRC reference timing.
ASRC0–ASRC3	Asynchronous sample rate converters	Hardware-accelerated SRC blocks supporting 16–24-bit audio at up to 192 kHz with −128 dB SNR; eliminate software overhead for multi-rate audio mixing.
THERM_DIODE	Integrated thermal sensing node	Analog output proportional to die temperature; enables closed-loop thermal management in sealed automotive enclosures without external sensors.

Key Features

Feature	Design Value
VISA Instruction Set	Supports 16-/32-bit compressed opcodes reducing program memory footprint by ~30% versus legacy 48-bit ISA-critical for ROM-limited audio decoder deployment.
Dual SIMD Core	Parallel PEx/PEy execution delivers 1.8 GFLOPS at 300 MHz; enables real-time 1024-point complex FFT in 30.59 μs for acoustic echo cancellation and beamforming.
Factory-ROM Audio Decoders	Preloaded Dolby Digital, DTS, and MPEG audio decoding firmware validated for AEC-Q100 environments-eliminates customer IP licensing and integration effort.
Digital Applications Interface (DAI)	20-pin flexible signal routing unit (SRU) allows dynamic interconnection of SPORTs, ASRCs, PCGs, and S/PDIF without external logic-reduces PCB layer count in multi-source audio systems.
AEC-Q100 Grade 3 Compliance	Qualified across −40°C to +85°C ambient with extended life testing; meets automotive infotainment ECU requirements for vibration, thermal cycling, and ESD immunity.

Applications

Automotive Infotainment Head Unit	Professional Audio DSP Module
Use Scenario: Central audio processor in vehicle head units handling navigation voice prompts, Bluetooth streaming, AM/FM radio, and rear-seat entertainment simultaneously. IC Role / Device Role / Timing Role: Primary SHARC DSP executing Dolby/DTS decode, multi-band parametric EQ, loudness compensation, and ASRC-based sample rate alignment across 8+ audio sources. Use Value: Factory-programmed ROM eliminates boot-time firmware loading; AEC-Q100 qualification ensures reliability over 15-year vehicle lifecycle; thermal diode enables adaptive clock throttling during sustained compute loads.	Use Scenario: Standalone 192 kHz/24-bit audio effects processor for studio monitors and live sound reinforcement systems. IC Role / Device Role / Timing Role: Real-time FIR filter engine for linear-phase room correction, convolution reverb host, and dynamic range control with sub-microsecond latency. Use Value: 300 MHz SIMD core achieves <10 μs filter latency at 192 kHz; eight SPORTs enable direct connection to multiple ADC/DAC chips; PCG outputs drive low-jitter clock trees for ADCs/DACs.
High-End Home Theater Receiver	Medical Ultrasound Beamformer
Use Scenario: Multi-channel AV receiver performing object-based audio decoding (Dolby Atmos), upmixing, and speaker-specific time-aligned FIR filtering. IC Role / Device Role / Timing Role: Dedicated audio DSP offloading CPU-intensive tasks including 7.1.4 channel decoding, bass management, and lip-sync compensation. Use Value: 4 Mbits ROM contains certified Dolby Atmos and DTS:X decoders; ASRCs handle asynchronous HDMI audio inputs; VISA reduces memory bandwidth pressure during complex scene rendering.	Use Scenario: Digital beamforming engine in portable ultrasound systems requiring real-time RF data processing and image reconstruction. IC Role / Device Role / Timing Role: High-throughput FIR filter bank applying dynamic delay-and-sum focusing across 128+ transducer elements at 40 MSPS sampling rates. Use Value: 1.8 GFLOPS SIMD performance sustains >200 million MACs/sec for real-time B-mode imaging; on-chip SRAM stores large filter coefficient sets; JTAG debug support enables clinical validation traceability.

Automotive Infotainment Head Unit

Professional Audio DSP Module

Use Scenario: Central audio processor in vehicle head units handling navigation voice prompts, Bluetooth streaming, AM/FM radio, and rear-seat entertainment simultaneously.

IC Role / Device Role / Timing Role: Primary SHARC DSP executing Dolby/DTS decode, multi-band parametric EQ, loudness compensation, and ASRC-based sample rate alignment across 8+ audio sources.

Use Value: Factory-programmed ROM eliminates boot-time firmware loading; AEC-Q100 qualification ensures reliability over 15-year vehicle lifecycle; thermal diode enables adaptive clock throttling during sustained compute loads.

Use Scenario: Standalone 192 kHz/24-bit audio effects processor for studio monitors and live sound reinforcement systems.

IC Role / Device Role / Timing Role: Real-time FIR filter engine for linear-phase room correction, convolution reverb host, and dynamic range control with sub-microsecond latency.

Use Value: 300 MHz SIMD core achieves <10 μs filter latency at 192 kHz; eight SPORTs enable direct connection to multiple ADC/DAC chips; PCG outputs drive low-jitter clock trees for ADCs/DACs.

High-End Home Theater Receiver

Medical Ultrasound Beamformer

Use Scenario: Multi-channel AV receiver performing object-based audio decoding (Dolby Atmos), upmixing, and speaker-specific time-aligned FIR filtering.

IC Role / Device Role / Timing Role: Dedicated audio DSP offloading CPU-intensive tasks including 7.1.4 channel decoding, bass management, and lip-sync compensation.

Use Value: 4 Mbits ROM contains certified Dolby Atmos and DTS:X decoders; ASRCs handle asynchronous HDMI audio inputs; VISA reduces memory bandwidth pressure during complex scene rendering.

Use Scenario: Digital beamforming engine in portable ultrasound systems requiring real-time RF data processing and image reconstruction.

IC Role / Device Role / Timing Role: High-throughput FIR filter bank applying dynamic delay-and-sum focusing across 128+ transducer elements at 40 MSPS sampling rates.

Use Value: 1.8 GFLOPS SIMD performance sustains >200 million MACs/sec for real-time B-mode imaging; on-chip SRAM stores large filter coefficient sets; JTAG debug support enables clinical validation traceability.

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-21479KCPZ-3A	5 Mbits SRAM + 4 Mbits ROM in 196-ball CSP_BGA; adds external port (SDRAM/AMI), RTC, watchdog timer, and MediaLB interface.	Required for systems needing >3 Mbits on-chip memory or glueless SDRAM expansion; supports automotive telematics with RTC timestamping.	Select when external memory bandwidth or real-time clock functionality is mandatory; not pin-compatible due to 196-ball BGA vs. 88-lead LFCSP.
ADSP-21477KCPZ-2A	200 MHz max frequency, 2 Mbits SRAM, no ROM; offered in 100-lead LQFP; lacks ASRCs, S/PDIF, and PCGs beyond PCG0/PCG1.	Suitable for cost-sensitive audio preamps or basic equalizers where decoder offload and multi-rate conversion are unnecessary.	Choose for non-automotive, lower-compute applications with simpler I/O; shares code compatibility but requires peripheral reconfiguration.

Compared with ADSP-21478KBCZ-3A, the ADSP-21479KCPZ-3A adds memory and peripherals at the cost of larger package and higher power, while the ADSP-21477KCPZ-2A reduces cost and complexity but sacrifices audio-specific features and compute headroom-making ADSP-21478KBCZ-3A the optimal balance for AEC-Q100-certified, ROM-based audio DSPs in compact form factors.

Availability

ADSP-21478KBCZ-3A is available at Aetrix Electronics and suitable for automotive infotainment, professional audio equipment, and high-end home theater receivers requiring stable component supply, long-term lifecycle support, and AEC-Q100 compliance.

Supply support for ADSP-21478KBCZ-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, headquartered in Wilmington, MA, with design centers worldwide and a 50+ year heritage in precision signal processing.

The SHARC® processor family-including ADSP-21478KBCZ-3A-is engineered specifically for computationally intensive, low-latency audio and industrial signal processing applications demanding deterministic real-time performance and hardware-accelerated math functions.

FAQ

What is the maximum operating frequency of the ADSP-21478KBCZ-3A?

The ADSP-21478KBCZ-3A operates at up to 300 MHz, delivering 1.8 GFLOPS peak performance in SIMD mode. This frequency is guaranteed across the full industrial temperature range (−40°C to +85°C) and enables real-time execution of complex audio algorithms such as 1024-point FFT in 30.59 μs. The ADSP-21478KBCZ-3A achieves this performance using dual computational elements (PEx/PEy) with independent ALU, multiplier, and shifter units synchronized to the core clock.

Does the ADSP-21478KBCZ-3A include factory-programmed audio decoders?

Yes, the ADSP-21478KBCZ-3A includes 4 Mbits of factory-programmed ROM containing licensed Dolby and DTS audio decoders, validated for AEC-Q100 automotive environments. These decoders are pre-integrated and ready for immediate deployment without requiring customer IP licensing or firmware development. The ADSP-21478KBCZ-3A boots exclusively from this ROM when security mode is enabled, preventing unauthorized access to the decoder binaries.

What package type and thermal features does the ADSP-21478KBCZ-3A use?

The ADSP-21478KBCZ-3A uses an 88-lead LFCSP_VQ package (12 mm × 12 mm × 0.8 mm) with 0.5 mm lead pitch and exposed thermal pad. It integrates a calibrated thermal diode accessible via dedicated analog pin (THERM_DIODE), enabling real-time die temperature monitoring without external sensors. This feature is critical for thermal management in sealed automotive enclosures and supports adaptive clock throttling in the ADSP-21478KBCZ-3A's power-aware operation.

Is the ADSP-21478KBCZ-3A AEC-Q100 qualified?

Yes, the ADSP-21478KBCZ-3A is AEC-Q100 qualified for Grade 3 (−40°C to +85°C), meeting automotive infotainment ECU requirements for thermal cycling, mechanical shock, and ESD immunity. This qualification covers the full device-including its 300 MHz SIMD core, 4 Mbits ROM, and DAI peripherals-and is documented in Analog Devices' official automotive product models list. The ADSP-21478KBCZ-3A is approved for use in dashboard-mounted head units and rear-seat entertainment systems.

How does the VISA instruction set benefit designs using the ADSP-21478KBCZ-3A?

The VISA (Variable Instruction Set Architecture) in the ADSP-21478KBCZ-3A supports 16-bit and 32-bit compressed opcodes that reduce program memory footprint by up to 30% compared to legacy 48-bit ISA. This directly improves code density in the 4 Mbits of factory-ROM, allowing more complex audio processing routines within fixed memory constraints. The ADSP-21478KBCZ-3A executes VISA instructions natively from both internal ROM and external SDRAM, enhancing efficiency in memory-bandwidth-limited audio pipelines.

ADSP-21478KBCZ-3A Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: SHARC®

Package/Case:: 196-LFBGA, CSPBGA

Packaging:: Tray

Product Status:: Active

Type:: Floating Point

Interface:: DAI, DPI, EBI/EMI, I2C, SPI, SPORT, UART/USART

Clock Rate:: 300MHz

Non-Volatile Memory:: ROM (4Mbit)

On-Chip RAM:: 3Mbit

Voltage - I/O:: 3.30V

Voltage - Core:: 1.30V

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 196-CSPBGA (12x12)

ADSP-21478KBCZ-3A FAQ

1.How can I place an order for ADSP-21478KBCZ-3A through Aetrix?

Please submit a Request for Quotation (RFQ) for ADSP-21478KBCZ-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-21478KBCZ-3A reliable?

The price and inventory of ADSP-21478KBCZ-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-21478KBCZ-3A is usually 5 days.

3.What payment methods are accepted for ADSP-21478KBCZ-3A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21478KBCZ-3A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADSP-21478KBCZ-3A?

ADSP-21478KBCZ-3A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADSP-21478KBCZ-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-21478KBCZ-3A?

For technical support, including ADSP-21478KBCZ-3A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21478KBCZ-3A requirements.

6.How does Aetrix verify that ADSP-21478KBCZ-3A is sourced from the original manufacturer or authorized distributors?

All ADSP-21478KBCZ-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-21478KBCZ-3A meets industry standards.

7.What is the process for return or replacement of ADSP-21478KBCZ-3A?

All ADSP-21478KBCZ-3A units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21478KBCZ-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-21478KBCZ-3A part is unused and in its original packaging.

Return procedure for ADSP-21478KBCZ-3A:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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