Analog Devices Inc. ADSP-21479KCPZ-1A

Overview

ADSP-21479KCPZ-1A 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 5 Mbits of on-chip SRAM and 4 Mbits of ROM, supporting SIMD computation, S/PDIF transceiver, and AEC-Q100 qualification for automotive infotainment systems.

For engineers reviewing the ADSP-21479KCPZ-1A datasheet, ADSP-21479KCPZ-1A pinout, ADSP-21479KCPZ-1A application, or ADSP-21479KCPZ-1A equivalent, key selection considerations include its 196-ball CSP_BGA package, real-time clock (RTC), watchdog timer, shift register, and automotive-grade thermal diode - all confirmed for this specific variant.

Technical Context

The ADSP-21479KCPZ-1A implements a dual-processing-element SIMD core (PEx/PEy) delivering 1.8 GFLOPS at 300 MHz, with independent ALU/multiplier/shifter units per element and IEEE 32-bit single-precision and 40-bit extended-precision floating-point support. Its enhanced Harvard architecture enables simultaneous fetch of one instruction and four operands per cycle via PM/DM buses and instruction cache.

It features two clock domains: a 300 MHz core domain hosting the SIMD engine and memory subsystem, and a peripheral domain supporting DAI peripherals including four PCGs, eight SPORTs, four ASRCs, S/PDIF Tx/Rx, IDP/PDAP, and DPI peripherals such as TWI, UART, SPI, and PWM - all accessible through dedicated 32-bit IOD0/IOD1 buses.

Key Specifications

Pinout & Package

ADSP-21479KCPZ-1A is housed in a 196-ball CSP_BGA package (ball pitch: 0.8 mm), supporting full peripheral functionality including SDRAM interface, RTC, watchdog timer, and thermal diode - features omitted in 88-LFCSP_VQ and 100-LQFP variants.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance audio DSP applications.

Compared with ADSP-21479KCPZ-1A, the ADSP-21478KCPZ-1A reduces on-chip storage and removes automotive peripherals, while the ADSP-21479KCPZ-2A maintains full feature parity at a lower frequency grade - offering trade-offs in cost, IP integration, and thermal design flexibility.

Availability

ADSP-21479KCPZ-1A is available at Aetrix Electronics and suitable for automotive infotainment, professional audio equipment, Dolby/DTS decoder modules, and active noise cancellation systems requiring stable component supply across extended product lifecycles.

Supply support for ADSP-21479KCPZ-1A 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, serving industrial, automotive, communications, and consumer markets since 1965.

The SHARC® processor family - including ADSP-21479KCPZ-1A - was designed specifically for computationally intensive, low-latency audio signal processing, emphasizing floating-point precision, on-chip memory bandwidth, and audio-optimized peripherals like S/PDIF and ASRC.

FAQ

What is the maximum operating frequency of the ADSP-21479KCPZ-1A?

The ADSP-21479KCPZ-1A is rated for up to 300 MHz core clock operation, enabling 1.8 GFLOPS performance in SIMD mode. This frequency is guaranteed across the full industrial temperature range (–40°C to +85°C) and supports real-time execution of demanding audio workloads such as 1024-point FFT in 30.59 μs. The ADSP-21479KCPZ-1A achieves this via a fully static CMOS core with adaptive voltage scaling.

Does the ADSP-21479KCPZ-1A include factory-programmed audio decoders?

Yes, the ADSP-21479KCPZ-1A includes 4 Mbits of factory-programmed ROM containing licensed Dolby and DTS audio decoders, verified in Analog Devices' ordering guide for IP-licensed variants. This ROM is secured via hardware-enforced read protection requiring a unique 64-bit JTAG key, ensuring decoder IP remains inaccessible during field operation or debugging of the ADSP-21479KCPZ-1A.

Which package does the ADSP-21479KCPZ-1A use, and why does it matter?

The ADSP-21479KCPZ-1A uses a 196-ball CSP_BGA package (0.8 mm pitch), the only variant supporting full peripheral functionality including SDRAM controller, real-time clock, watchdog timer, and shift register. Smaller packages (88-LFCSP_VQ, 100-LQFP) omit these features and disable the external port - making the 196-BGA essential for designs requiring expandable memory or automotive timing peripherals in the ADSP-21479KCPZ-1A.

Is the ADSP-21479KCPZ-1A qualified for automotive applications?

Yes, the ADSP-21479KCPZ-1A is AEC-Q100 qualified for automotive applications (Grade 3: –40°C to +85°C), with integrated thermal diode and robust ESD protection. It is explicitly listed in Analog Devices' Automotive Product Models table and supports automotive-specific peripherals including RTC and watchdog timer - both required for ASIL-B compliant infotainment and ANC systems using the ADSP-21479KCPZ-1A.

How does the Variable Instruction Set Architecture (VISA) benefit the ADSP-21479KCPZ-1A?

VISA reduces code size by up to 40% using 16-/32-bit compressed opcodes while maintaining full backward compatibility with legacy 48-bit SHARC instructions. For the ADSP-21479KCPZ-1A, this enables more efficient use of its 4 Mbits ROM for licensed Dolby/DTS decoders and lowers memory bandwidth pressure during VISA-compiled algorithm execution - directly improving real-time audio processing throughput.