The ADSP-21365 belongs to Analog Devices' third-generation SHARC processor family and was optimized for demanding digital audio applications.

Its SIMD SHARC core supports:

• 32-bit fixed-point processing

• 32-bit floating-point processing

• 40-bit extended floating-point processing

With a maximum core frequency of 333MHz and up to 1.8 GFLOPS, the ADSP-21365 was one of the highest-performance devices in this SHARC generation.

The processor also integrates audio-specific peripherals that reduce the need for external devices in multichannel audio designs.

Key Specifications

Audio Processing Features

The ADSP-21365 integrates several peripherals specifically useful in digital audio systems:

• S/PDIF transmitter and receiver

• 8-channel asynchronous sample rate converter

• Six SPORT serial interfaces

• I²S and TDM audio support

• Two SPI-compatible interfaces

• Digital Audio Interface

• 25 zero-overhead DMA channels

Selected versions were also available with on-chip ROM containing licensed audio decoding and post-processing algorithms for automotive audio platforms.

Typical Applications

ADSP-21365 was commonly suited to:

• Automotive infotainment systems

• Automotive audio amplifiers

• Surround-sound processors

• Professional audio equipment

• Digital mixing systems

• AV receivers

• Multichannel audio processing

• Legacy SHARC embedded systems

ADSP-21365 Replacement

There is no universal pin-to-pin replacement for every ADSP-21365 implementation.

ADI documentation identifies the ADSP-21365 as part of the broader third-generation SHARC family, including devices such as:

• ADSP-21266

• ADSP-21363

• ADSP-21364

• ADSP-21366

These processors share significant architectural and software compatibility, but differences in memory, peripherals, package and speed must still be checked before substitution.

For new designs, newer SHARC+® processors should generally be evaluated instead of another obsolete SHARC device.

FAQ

Is ADSP-21365 obsolete?

Yes. Analog Devices currently lists the ADSP-21365 as Obsolete.

What is the maximum frequency of ADSP-21365?

The processor operates at up to 333MHz.

How much SRAM does ADSP-21365 have?

ADSP-21365 integrates 3Mbits of on-chip SRAM.

What is ADSP-21365 mainly used for?

It was primarily designed for automotive and professional digital audio processing, including surround sound and multichannel audio systems.

What packages are available?

The ADSP-21365 family was offered in 136-ball MBGA and 144-lead LQFP E-Pad package options.

Is there a direct replacement for ADSP-21365?

There is no single universal drop-in replacement. Related SHARC devices may offer architectural compatibility, while newer SHARC+ processors are more appropriate for redesigns.

Where can I request ADSP-21365 stock?

DataStorageIC supports RFQs for ADSP-21365 and other obsolete Analog Devices SHARC DSPs. Provide the complete ordering code and required quantity for availability and pricing.