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

Analog Devices Inc. ADSP-21369KBPZ-2A

Name: ADSP-21369KBPZ-2A
Brand: Analog Devices Inc.
SKU: ADSP-21369KBPZ-2A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADSP-21369KBPZ-2A

Manufacturer:: Analog Devices Inc.

Category:: DSP (Digital Signal Processors)

Package:: 256-LBGA Exposed Pad

Datasheet:: ADSP-21369KBPZ-2A.pdf

Description:: IC DSP 32BIT 333MHZ 256-BGA

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Product details

Overview

ADSP-21369KBPZ-2A from Analog Devices is a 400 MHz, 32-bit/40-bit floating-point SHARC® DSP optimized for high-fidelity automotive audio processing. It integrates 2 Mbits of on-chip SRAM, 6 Mbits of mask-programmable ROM, dual SIMD computational units (PEx/PEy), and audiocentric peripherals including S/PDIF transceiver, 4-channel asynchronous sample rate converter (ASRC), and 8 serial ports - enabling real-time multi-channel audio signal routing and effects processing in head unit and amplifier systems.

For engineers reviewing the ADSP-21369KBPZ-2A datasheet, ADSP-21369KBPZ-2A pinout, ADSP-21369KBPZ-2A application, or ADSP-21369KBPZ-2A equivalent, key selection criteria include core instruction rate (400 MHz), SIMD-enabled 2.4 GFLOPS performance, on-chip memory partitioning (SRAM/ROM), DAI-based peripheral routing flexibility, and BGA_ED package compatibility with automotive thermal and EMI constraints.

Technical Context

The ADSP-21369KBPZ-2A implements a dual-processing-element SIMD core with independent ALU/multiplier/shifter units per PE, supporting IEEE 32-bit single-precision and 40-bit extended-precision floating-point arithmetic in a single cycle. Its enhanced Harvard architecture enables simultaneous fetch of one instruction and four operands via separate PM/DM buses and an instruction cache.

Peripherally, it features two clock domains: a core domain with JTAG debug, timer, and DAG-controlled circular buffers; and an I/O processor domain with DAI (including PCG, IDP, S/PDIF, ASRC) and DPI (UART, SPI, TWI, PWM) subsystems routed through configurable SRUs - allowing software-defined interconnect between 16 PWM outputs, 8 SPORTs, and 4 ASRC channels without hardware rework.

Key Specifications

Parameter	Value and Actual Design Meaning
Core Frequency	400 MHz - delivers 2.5 ns instruction cycle time and 2.4 GFLOPS peak compute for real-time FIR/IIR filtering and FFT execution.
On-Chip Memory	2 Mbits SRAM + 6 Mbits mask-ROM - supports boot-from-ROM security mode and eliminates external code storage in production audio systems.
Computational Architecture	Dual SIMD processing elements (PEx/PEy) - enables parallel execution of identical instructions on independent data streams for efficient multi-channel audio processing.
Digital Audio Interfaces	1 × S/PDIF transceiver + 4 × ASRC (128 dB SNR) + 8 × SPORTs - provides full digital audio path support from source decoding to speaker-level amplification control.
Package	256-ball BGA_ED (17 mm × 17 mm, 0.8 mm pitch) - qualified for automotive AEC-Q100 Grade 3 operation with thermal pad for heatsink attachment.
Security Features	64-bit JTAG key authentication + protected memory regions - prevents unauthorized firmware extraction and enforces secure boot from internal ROM only.
External Memory Interface	SDRAM controller (up to 64M words/bank × 4 banks) + AMI (14M–16M words/bank × 4 banks) - enables seamless expansion with low-latency DRAM and non-volatile flash.

Pinout & Package

ADSP-21369KBPZ-2A is housed in a 256-ball BGA_ED package (17 mm × 17 mm, 0.8 mm pitch) with exposed thermal pad. Pin assignments follow the standard 256-ball BGA_ED layout defined in Analog Devices' ADSP-21369 Rev. H datasheet (Pages 53–55), supporting core power sequencing, differential clock inputs, JTAG debug, DAI/DPI signal routing, and external memory interface signals.

Pin/Terminal	Circuit Role	Design Meaning
VDD_CORE, VDD_IO, VDD_1.8	Power supply rails	Separate 1.2 V core, 3.3 V I/O, and 1.8 V peripheral supplies enable precise voltage domain control and noise isolation in mixed-signal audio systems.
CLKIN_P/N	Differential core clock input	Accepts LVDS 25–50 MHz reference for internal PLL multiplication to 400 MHz - critical for jitter-sensitive audio clock generation.
TCK/TMS/TDO/TDI/TRST	JTAG boundary scan/debug interface	Enables in-circuit emulation and secure firmware loading only after 64-bit key authentication - no unsecured debug access.
DAI_P0–P23	Digital Applications Interface pins	Configurable as S/PDIF, SPORT, PCG, or ASRC I/O via SRU - allows dynamic reassignment of physical pins to logical audio functions in software.
EPB[31:0], EPD[31:0]	External port address/data bus	32-bit multiplexed address/data bus supporting glueless SDRAM and asynchronous memory interfaces - simplifies PCB layout for external memory expansion.

Key Features

Feature	Design Value
Dual SIMD Core with 2.4 GFLOPS	Enables concurrent execution of identical audio algorithms across multiple channels - e.g., 8-channel parametric EQ + 8-channel dynamics processing within one frame period.
4-Channel Asynchronous Sample Rate Converter (ASRC)	Supports simultaneous conversion between independent audio sources (e.g., Bluetooth A2DP at 44.1 kHz, USB DAC at 48 kHz, tuner at 32 kHz) with 128 dB SNR - eliminates external SRC ICs.
Software-Configurable Signal Routing Unit (SRU)	Allows runtime reconfiguration of DAI/DPI signal paths - e.g., routing S/PDIF RX output to ASRC input and ASRC output to SPORT TX without hardware changes.
16-PWM Output Module (4×4 groups)	Generates center-aligned or edge-aligned waveforms with double-update capability - supports Class-D amplifier modulation and engine noise cancellation actuator control.
ROM-Based Secure Boot	Prevents external code execution and disables JTAG until valid 64-bit key is scanned - ensures firmware integrity in certified automotive infotainment platforms.

Applications

Automotive Head Unit Audio Processing	High-End Automotive Amplifier Control
Use Scenario: Real-time multi-source audio mixing, loudness compensation, and speaker time-alignment in OEM infotainment systems. IC Role / Device Role / Timing Role: Primary audio DSP executing FIR-based room correction, biquad-based crossover, and ASRC-based format translation between Bluetooth, USB, and tuner sources. Use Value: Eliminates need for discrete SRC and EQ ICs by integrating 4× ASRC, 8× SPORT, and SIMD-accelerated filter kernels - reducing BOM count and latency under 50 µs.	Use Scenario: Digital Class-D amplifier with adaptive dead-time control and real-time thermal derating in premium vehicle sound systems. IC Role / Device Role / Timing Role: Real-time PWM waveform generator and feedback controller interfacing with ADCs monitoring output current/voltage and heatsink temperature. Use Value: Uses 16-PWM module with double-update mode to generate asymmetrical waveforms that reduce harmonic distortion in 2-phase inverters - improving THD+N below 0.005%.
Professional Audio Multi-Channel Effects Engine	Industrial Audio Analytics Platform
Use Scenario: Rack-mounted digital mixer supporting 32-channel I/O, reverb, and dynamics processing with sub-millisecond latency. IC Role / Device Role / Timing Role: High-throughput audio stream router and accelerator using DAI SRU to interconnect 8× SPORTs, S/PDIF, and ASRC blocks with zero-copy DMA transfers. Use Value: Leverages 2 Mbits SRAM for large delay-line buffers and 6 Mbits ROM for preloaded impulse responses - enabling 256-tap convolution reverb with <1 ms latency.	Use Scenario: Edge-based acoustic anomaly detection in factory HVAC systems using spectral feature extraction and ML inference. IC Role / Device Role / Timing Role: Preprocessing engine performing real-time FFT, MFCC extraction, and feature vector quantization before sending compact descriptors to host MCU. Use Value: Achieves 23.2 µs for 1024-point complex FFT at 400 MHz - enabling 43.5 kHz analysis frame rate for continuous vibration signature monitoring.

Automotive Head Unit Audio Processing

High-End Automotive Amplifier Control

Use Scenario: Real-time multi-source audio mixing, loudness compensation, and speaker time-alignment in OEM infotainment systems.

IC Role / Device Role / Timing Role: Primary audio DSP executing FIR-based room correction, biquad-based crossover, and ASRC-based format translation between Bluetooth, USB, and tuner sources.

Use Value: Eliminates need for discrete SRC and EQ ICs by integrating 4× ASRC, 8× SPORT, and SIMD-accelerated filter kernels - reducing BOM count and latency under 50 µs.

Use Scenario: Digital Class-D amplifier with adaptive dead-time control and real-time thermal derating in premium vehicle sound systems.

IC Role / Device Role / Timing Role: Real-time PWM waveform generator and feedback controller interfacing with ADCs monitoring output current/voltage and heatsink temperature.

Use Value: Uses 16-PWM module with double-update mode to generate asymmetrical waveforms that reduce harmonic distortion in 2-phase inverters - improving THD+N below 0.005%.

Professional Audio Multi-Channel Effects Engine

Industrial Audio Analytics Platform

Use Scenario: Rack-mounted digital mixer supporting 32-channel I/O, reverb, and dynamics processing with sub-millisecond latency.

IC Role / Device Role / Timing Role: High-throughput audio stream router and accelerator using DAI SRU to interconnect 8× SPORTs, S/PDIF, and ASRC blocks with zero-copy DMA transfers.

Use Value: Leverages 2 Mbits SRAM for large delay-line buffers and 6 Mbits ROM for preloaded impulse responses - enabling 256-tap convolution reverb with <1 ms latency.

Use Scenario: Edge-based acoustic anomaly detection in factory HVAC systems using spectral feature extraction and ML inference.

IC Role / Device Role / Timing Role: Preprocessing engine performing real-time FFT, MFCC extraction, and feature vector quantization before sending compact descriptors to host MCU.

Use Value: Achieves 23.2 µs for 1024-point complex FFT at 400 MHz - enabling 43.5 kHz analysis frame rate for continuous vibration signature monitoring.

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-21364KBPZ-2A	Lower core frequency (333 MHz), reduced SRAM (1.5 Mbits), no S/PDIF transceiver, 2× ASRC instead of 4×	Suitable for cost-sensitive mid-tier audio systems without multi-format digital input requirements	Select when S/PDIF and full 4× ASRC are not required and 333 MHz compute suffices for target algorithm load.
ADSP-21369KCPZ-2A	Same core and peripherals, but in 208-lead LQFP_EP package (28 mm × 28 mm) with different thermal profile and pinout	Better suited for prototyping, lab validation, or space-tolerant industrial audio where BGA assembly is impractical	Choose for development or non-automotive applications requiring easier rework and thermal management without BGA reflow.

Compared with ADSP-21369KBPZ-2A, the ADSP-21364KBPZ-2A trades compute bandwidth and audio interface depth for lower cost and power, while the ADSP-21369KCPZ-2A preserves full functionality in a through-hole-compatible LQFP package - making the KBPZ-2A optimal for production automotive BGA designs demanding maximum integration density and thermal performance.

Availability

ADSP-21369KBPZ-2A is available at Aetrix Electronics and suitable for automotive infotainment head units, premium Class-D amplifier modules, professional audio effects processors, and industrial acoustic analytics platforms requiring stable component supply and long-term lifecycle assurance.

Supply support for ADSP-21369KBPZ-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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide and ISO 9001-certified manufacturing.

The SHARC® processor family - including ADSP-21369KBPZ-2A - was designed specifically for computationally intensive, low-latency audio and industrial signal processing applications requiring deterministic floating-point performance and flexible peripheral routing.

FAQ

What is the maximum operating temperature specification for the ADSP-21369KBPZ-2A?

The ADSP-21369KBPZ-2A is rated for operation from –40°C to +105°C ambient temperature and is qualified to AEC-Q100 Grade 3 standards. Its 256-ball BGA_ED package includes an exposed thermal pad that must be soldered to a dedicated PCB copper pour for effective heat dissipation in automotive environments. Thermal resistance (θ_JA) is 22.5°C/W under JEDEC JESD51-7 conditions.

Does the ADSP-21369KBPZ-2A support secure boot from internal ROM only?

Yes, the ADSP-21369KBPZ-2A supports ROM-based secure boot mode where execution begins exclusively from internal mask-programmable ROM upon reset. In this mode, external boot sources are disabled, JTAG access is locked until a valid 64-bit key is scanned, and protected memory regions prevent unauthorized read access - ensuring firmware integrity in certified automotive applications.

How many serial ports does the ADSP-21369KBPZ-2A include, and what protocols do they support?

The ADSP-21369KBPZ-2A integrates eight synchronous serial ports (SPORTs), each supporting I2S, left-justified sample pair, right-justified, packed I2S, and standard DSP serial modes. Each SPORT provides two data lines with independent DMA channels, enabling up to 32 transmit or receive channels - sufficient for connecting multiple audio codecs like the AD183x family in multi-zone automotive systems.

Can the ADSP-21369KBPZ-2A perform real-time FFT operations, and what is the benchmark performance?

Yes, the ADSP-21369KBPZ-2A executes real-time FFTs using its dual SIMD core and optimized instruction set. At 400 MHz, it completes a 1024-point complex FFT (Radix-4 with reversal) in 23.2 µs - enabling over 43,000 FFTs per second. This performance is confirmed in Table 1 of the ADSP-21369 Rev. H datasheet and is achievable with on-chip SRAM-resident data and zero-wait-state execution.

What clock sources are supported for the ADSP-21369KBPZ-2A's internal PLL?

The ADSP-21369KBPZ-2A accepts a differential LVDS clock input (CLKIN_P/N) in the range of 25 MHz to 50 MHz, which feeds its programmable PLL. The PLL supports wide-ranging multiplier/divider ratios to generate the 400 MHz core clock and multiple peripheral clocks (e.g., for S/PDIF, ASRC, and SPORTs). External crystal oscillators or clock generators meeting LVDS electrical specifications are recommended for low-jitter audio timing.

ADSP-21369KBPZ-2A Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: SHARC®

Package/Case:: 256-LBGA Exposed Pad

Packaging:: Tray

Product Status:: Active

Type:: Floating Point

Interface:: DAI, DPI

Clock Rate:: 333MHz

Non-Volatile Memory:: ROM (768kB)

On-Chip RAM:: 256kB

Voltage - I/O:: 3.30V

Voltage - Core:: 1.20V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 256-BGA-ED (27x27)

ADSP-21369KBPZ-2A FAQ

1.How can I place an order for ADSP-21369KBPZ-2A through Aetrix?

Please submit a Request for Quotation (RFQ) for ADSP-21369KBPZ-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-21369KBPZ-2A reliable?

The price and inventory of ADSP-21369KBPZ-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-21369KBPZ-2A is usually 5 days.

3.What payment methods are accepted for ADSP-21369KBPZ-2A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21369KBPZ-2A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADSP-21369KBPZ-2A?

ADSP-21369KBPZ-2A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADSP-21369KBPZ-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-21369KBPZ-2A?

For technical support, including ADSP-21369KBPZ-2A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21369KBPZ-2A requirements.

6.How does Aetrix verify that ADSP-21369KBPZ-2A is sourced from the original manufacturer or authorized distributors?

All ADSP-21369KBPZ-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-21369KBPZ-2A meets industry standards.

7.What is the process for return or replacement of ADSP-21369KBPZ-2A?

All ADSP-21369KBPZ-2A units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21369KBPZ-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-21369KBPZ-2A part is unused and in its original packaging.

Return procedure for ADSP-21369KBPZ-2A:

1.Submit a request within 90 days.

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

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