Analog Devices Inc. ADSP21262SKBCZ200R

Overview

ADSP-21262SKBCZ200R from Analog Devices is a 200 MHz, 32-bit/40-bit floating-point SHARC DSP optimized for multichannel audio decoding and real-time signal processing. It integrates 2 Mbit dual-ported SRAM, 4 Mbit mask-programmable ROM containing DTS Neo:6, Dolby Pro Logic IIx, and MPEG2 AAC LC decoders, six full-duplex serial ports, and a digital application interface (DAI) with two precision clock generators. It targets high-fidelity AV receivers and surround-sound processors.

For engineers reviewing the ADSP-21262SKBCZ200R datasheet, ADSP-21262SKBCZ200R pinout, ADSP-21262SKBCZ200R application, or ADSP-21262SKBCZ200R equivalent, key selection criteria include SIMD computational throughput (1200 MFLOPS), ROM-based decoder availability, 144-lead LQFP package compatibility, and DAI-configurable I/O routing for audio subsystem integration.

Technical Context

The ADSP-21262SKBCZ200R implements a dual-processing-element (PEX/PEY) SIMD architecture executing identical instructions on independent data streams, enabling parallel FIR/IIR filtering and FFT execution. Its enhanced Harvard bus structure supports simultaneous 4×32-bit data transfers per cycle via separate PM and DM buses, backed by an instruction cache that resolves PM bus conflicts.

It features a software-configurable DAI with signal routing unit (SRU), two precision clock generators (PCGs), eight-channel IDP (I²S or 20-bit parallel), and six serial ports operating up to 50 Mbps. Boot configuration is controlled by BOOT_CFG1–0 pins, and internal clock generation uses a PLL with programmable numerator (1–64) and divisor (2/4/8/16) ratios.

Key Specifications

Pinout & Package

ADSP-21262SKBCZ200R is housed in a 144-lead LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Analog Devices Rev. G datasheet, Pages 39–42.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADSP-21262SKBCZ200R, ADSP-21266KBCZ200 offers identical audio functionality in BGA form, while ADSP-21369KCPZ-2A provides architectural evolution at the cost of ROM decoder removal and non-pin-compatible packaging - making the former a layout-alternative and the latter a platform-upgrade path.

Availability

ADSP-21262SKBCZ200R is available at Aetrix Electronics and suitable for home theater AV receivers, professional audio mixers, automotive infotainment head units, and high-end soundbar processors requiring stable component supply and long-term industrial lifecycle support.

Supply support for ADSP-21262SKBCZ200R 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 audio systems.

The ADSP-21262SKBCZ200R belongs to the SHARC® family of SIMD DSPs designed specifically for computationally intensive, low-latency audio processing in consumer and professional AV equipment.

FAQ

What is the maximum serial data rate supported by ADSP-21262SKBCZ200R's SPORTs?

The ADSP-21262SKBCZ200R supports a maximum serial data rate of 50 Mbps per SPORT when operating at its 200 MHz core clock (¼ core rate). This enables full-duplex transmission of up to 24 audio channels across six SPORTs in I²S or TDM configurations, with configurable word lengths from 8 to 32 bits and support for μ-law/A-law companding per channel.

Does ADSP-21262SKBCZ200R include on-chip audio decoders, and which formats are supported?

Yes, ADSP-21262SKBCZ200R includes 4 Mbit of mask-programmable ROM containing certified multichannel audio decoders: DTS Neo:6, Dolby Pro Logic IIx, MPEG2 AAC LC, MPEG2 BC 2ch, PCM 96 kHz, and DTS 96/24 5.1. These decoders execute directly from ROM without external firmware loading, reducing boot time and system complexity in AV receiver designs.

What package type and thermal characteristics define ADSP-21262SKBCZ200R?

ADSP-21262SKBCZ200R uses a 144-lead LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Its θ_JA is 29.6°C/W and θ_JC is 5.5°C/W (junction-to-case). The device requires proper thermal vias under the pad and adherence to Analog Devices' recommended analog power filtering (100 nF / 10 nF / 1 nF RC network on AVDD) to maintain PLL stability and prevent thermal throttling at 200 MHz operation.

How does the Digital Application Interface (DAI) enhance system design flexibility for ADSP-21262SKBCZ200R?

The DAI in ADSP-21262SKBCZ200R includes a software-configurable Signal Routing Unit (SRU) that maps peripherals-including two precision clock generators (PCGs), eight-channel IDP, six serial ports, and six flag I/O-to physical pins at runtime. This eliminates fixed hardware signal paths, allowing one PCB layout to support multiple audio topologies (e.g., I²S input + TDM output or parallel acquisition + PCG-synchronized DAC control) via firmware configuration alone.

Can ADSP-21262SKBCZ200R operate without external memory, and what boot options are available?

Yes, ADSP-21262SKBCZ200R can operate entirely from on-chip resources: 2 Mbit SRAM for program/data and 4 Mbit ROM for decoders and boot code. Boot options include internal ROM (default), SPI master/slave, or parallel port EPROM, selected by BOOT_CFG1–0 pins at power-up. ROM security mode prevents external code loading and restricts JTAG access until a customer-specific 64-bit key is scanned.