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Analog Devices Inc. ADSP-21369BSWZ-2A
- Part No.:
- ADSP-21369BSWZ-2A
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 208-LQFP Exposed Pad
- Datasheet:
-
ADSP-21369BSWZ-2A.pdf
- Description:
- IC DSP 32BIT 333MHZ 208-LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,609
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Product details
Overview
ADSP-21369BSWZ-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 (SRC), and 8 serial ports - enabling real-time multi-channel audio effects and active noise cancellation in head unit and amplifier systems.
For engineers reviewing the ADSP-21369BSWZ-2A datasheet, ADSP-21369BSWZ-2A pinout, ADSP-21369BSWZ-2A application, or ADSP-21369BSWZ-2A equivalent, key selection criteria include its 256-ball BGA_ED package, JTAG-secured boot from ROM, 2.4 GFLOPS peak performance at 400 MHz, and DAI-based flexible signal routing for mixed-audio I/O topologies.
Technical Context
The ADSP-21369BSWZ-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 64-bit PM/DM buses and instruction cache.
Peripherals are partitioned into two clock domains: core domain (PEx/PEy, DAGs, timers, JTAG) and I/O processor domain (DAI, DPI, S/PDIF, SRC, PWM, UART/SPI/TWI). The DAI includes a programmable signal routing unit (SRU) that dynamically interconnects eight serial ports, S/PDIF, PCGs, and IDP under software control - eliminating fixed hardware routing constraints.
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. |
| On-Chip Memory | 2 Mbits SRAM + 6 Mbits mask-ROM - supports full audio algorithm execution without external code fetch, reducing latency and EMI. |
| SIMD Architecture | Dual PEx/PEy processing elements - enables parallel execution of identical instructions on independent data streams, accelerating stereo/multi-zone audio processing. |
| S/PDIF Interface | Integrated transceiver with biphase decoding - eliminates external codec for digital audio input/output in car infotainment head units. |
| Sample Rate Conversion | 4-channel asynchronous SRC with 128 dB SNR - allows seamless mixing of audio streams from multiple sources (Bluetooth, USB, tuner) operating at different sample rates. |
| Serial Ports | 8 SPORTs supporting up to 32 I2S channels - provides native connectivity to multi-channel ADC/DACs (e.g., AD183x) without glue logic. |
| PWM Outputs | 16 outputs grouped in 4×4 banks - enables direct digital control of Class-D amplifier gate drivers or motor control inverters. |
Pinout & Package
ADSP-21369BSWZ-2A is packaged in a 256-ball BGA_ED (ball pitch: 1.0 mm, body size: 17 mm × 17 mm) with thermal pad exposed on underside for enhanced heat dissipation in automotive amplifier modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DAI_P0–P23 | Digital Applications Interface I/O | Configurable DAI pins routed via SRU to S/PDIF, SPORTs, PCG, or IDP - enables custom audio signal path mapping without PCB redesign. |
| SPORT0–7_TX/RX | Synchronous Serial Port Data | Eight independent bidirectional serial ports supporting I2S, left-justified, or TDM - each with dedicated DMA channel for zero-CPU-overhead audio streaming. |
| S/PDIF_TX/RX | Digital Audio Transceiver | Dedicated biphase encoder/decoder pins - accepts 16–24 bit word lengths and auto-detects frame sync polarity for compatibility with consumer/pro audio sources. |
| PWM0–15 | Pulse-Width Modulation Output | 16 GPIO-mapped PWM outputs organized in four groups - supports center-aligned or edge-aligned waveforms with programmable dead-time for Class-D amplifier control. |
| CLKIN/CLKOUT | External Clock Interface | Differential clock input (up to 50 MHz) with internal PLL multiplication - generates precise core, peripheral, and audio clocks (e.g., 44.1 kHz, 48 kHz, 96 kHz) from single crystal. |
| JTAG_TCK/TMS/TDO/TDI | Boundary Scan & Debug Port | IEEE 1149.1-compliant interface with 64-bit key authentication - enables secure emulation and firmware update only after valid key scan, preventing unauthorized access to ROM code. |
Key Features
| Feature | Design Value |
|---|---|
| ROM-Based Security | Prevents external boot and JTAG memory read unless authenticated with unique 64-bit key - ensures proprietary audio algorithms remain protected in production ECUs. |
| Digital Applications Interface (DAI) | Software-configurable SRU matrix routes signals between 8 SPORTs, S/PDIF, PCGs, and IDP - replaces discrete crosspoint switches and reduces BOM count by up to 7 components per audio subsystem. |
| Asynchronous Sample Rate Converter (SRC) | Four independent SRC units with 128 dB dynamic range - eliminates need for external SRC ICs when integrating Bluetooth A2DP (44.1 kHz) with AM/FM tuner (48 kHz) in same audio pipeline. |
| Enhanced Harvard Architecture | Separate 64-bit PM/DM buses + instruction cache - sustains 2.4 GFLOPS by enabling simultaneous instruction fetch and four-operand data transfer every cycle. |
| SDRAM Controller | Glueless interface to 64M-word SDRAM banks (up to 128 MB) - supports large audio buffer storage for echo cancellation, surround sound rendering, and voice assistant buffering. |
Applications
| Automotive Infotainment Head Unit | High-End Automotive Amplifier |
|---|---|
Use Scenario: Central audio processor in vehicle head unit handling Bluetooth streaming, FM/AM radio, navigation voice prompts, and rear-seat entertainment inputs. IC Role / Device Role / Timing Role: Primary SHARC DSP executing multi-threaded audio mixing, parametric EQ, loudness compensation, and Dolby Digital decoding in real time. Use Value: On-chip 6 Mbit ROM stores certified audio codecs and security keys; DAI SRU dynamically re-routes S/PDIF, SPORTs, and IDP to match source priority without hardware changes. | Use Scenario: Digital signal processor in 8-channel Class-D amplifier module delivering active road-noise cancellation and cabin acoustic tuning. IC Role / Device Role / Timing Role: Real-time FIR filter engine applying adaptive 512-tap filters per channel using 2.4 GFLOPS SIMD compute, synchronized to PWM output timing. Use Value: 16 PWM outputs directly drive half-bridge gate drivers; 4-channel SRC aligns microphone array sampling (48 kHz) with playback stream (44.1 kHz) for phase-coherent ANC. |
| Professional Audio Multi-Effects Processor | Medical Ultrasound Beamformer |
Use Scenario: Rack-mount audio processor for live sound reinforcement, applying reverb, delay, compression, and harmonic excitation across 32 input channels. IC Role / Device Role / Timing Role: Dual-PE SIMD core executes parallel stereo algorithms on all channels; 8 SPORTs interface to 32-channel ADC/DAC cards via TDM frames. Use Value: 2 Mbit SRAM buffers 2 seconds of 32-channel 96 kHz audio; instruction cache ensures deterministic <10 µs interrupt latency for MIDI-triggered effects. | Use Scenario: Digital beamforming engine in portable ultrasound system performing real-time RF signal processing and synthetic aperture imaging. IC Role / Device Role / Timing Role: High-precision 40-bit floating-point unit computes time-delay-and-sum operations on 128-channel echo data with sub-sample interpolation. Use Value: 40-bit extended precision prevents numerical drift in 1024-point complex FFTs; SDRAM controller interfaces to 128 MB frame buffer for DICOM image reconstruction. |
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-21364BSWZ-2A | 333 MHz core, 1.5 Mbits SRAM, no S/PDIF, no ASRC, 4 SPORTs | Limited to single-source audio pipelines without sample rate conversion or digital optical I/O | Select when cost-sensitive designs require SHARC compatibility but omit advanced audio peripherals. |
| ADSP-21369KSWZ-2A | Same core/peripherals, but in 208-lead LQFP_EP package (14 mm × 14 mm) with exposed thermal pad | Better suited for prototyping, lower-layer PCBs, or space-constrained amplifier modules where BGA rework is impractical | Select when manual assembly, thermal testing, or legacy LQFP footprint compatibility is required. |
Compared with ADSP-21369BSWZ-2A, the ADSP-21364BSWZ-2A reduces compute bandwidth and audio I/O flexibility for cost savings, while the ADSP-21369KSWZ-2A retains identical functionality in a rework-friendly LQFP package - making it ideal for pre-production validation and thermal characterization before BGA volume deployment.
Availability
ADSP-21369BSWZ-2A is available at Aetrix Electronics and suitable for automotive infotainment, professional audio equipment, and medical ultrasound systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADSP-21369BSWZ-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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, industrial automation, and communications infrastructure.
The SHARC processor family - including ADSP-21369BSWZ-2A - was designed specifically for computationally intensive, low-latency audio and sensor signal processing applications demanding deterministic real-time performance and hardware-enforced security.
FAQ
What is the maximum operating frequency of the ADSP-21369BSWZ-2A?
The ADSP-21369BSWZ-2A operates at a guaranteed maximum core frequency of 400 MHz, achieving a 2.5 ns instruction cycle time. This rating is validated across industrial temperature range (−40°C to +85°C) and specified in the Rev. H datasheet, Table 1. The processor's PLL supports wide multiplier/divider ratios to generate this core clock from low-frequency crystals, enabling precise audio clock synthesis.
Does the ADSP-21369BSWZ-2A support secure boot from internal ROM?
Yes, the ADSP-21369BSWZ-2A implements ROM-based security with JTAG access permitted only after scanning a unique 64-bit customer key. When enabled, the device boots exclusively from internal mask-ROM and blocks external code loading - ensuring proprietary audio algorithms and calibration data remain protected against reverse engineering in automotive ECU deployments.
How many serial audio channels can the ADSP-21369BSWZ-2A handle simultaneously?
The ADSP-21369BSWZ-2A supports up to 32 I2S channels via its eight SPORTs, each configurable for stereo I2S or multichannel TDM. With dedicated DMA per SPORT and left-justified sample pair mode, it handles 32 transmit or 32 receive channels concurrently - sufficient for 16-zone automotive audio distribution or 32-microphone beamforming arrays.
What package type is used for the ADSP-21369BSWZ-2A?
The ADSP-21369BSWZ-2A uses a 256-ball BGA_ED package (17 mm × 17 mm, 1.0 mm ball pitch) with an exposed thermal pad on the underside. This package is optimized for high-power audio DSP operation in automotive amplifier modules, providing superior thermal dissipation compared to the LQFP variant while maintaining pin-to-pin compatibility with other ADSP-21369 variants.
Can the ADSP-21369BSWZ-2A perform sample rate conversion between different audio sources?
Yes, the ADSP-21369BSWZ-2A integrates four independent asynchronous sample rate converters (ASRC) with 128 dB SNR. Each ASRC unit synchronizes audio streams from disparate sources - such as Bluetooth A2DP (44.1 kHz), USB audio (48 kHz), or FM tuner (32 kHz) - enabling real-time mixing without external SRC ICs or audible artifacts from resampling jitter.
ADSP-21369BSWZ-2A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SHARC®
- Package/Case:
- 208-LQFP 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 208-LQFP-EP (28x28)
ADSP-21369BSWZ-2A FAQ
1.How can I place an order for ADSP-21369BSWZ-2A through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-21369BSWZ-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-21369BSWZ-2A reliable?
The price and inventory of ADSP-21369BSWZ-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-21369BSWZ-2A is usually 5 days.
3.What payment methods are accepted for ADSP-21369BSWZ-2A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21369BSWZ-2A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-21369BSWZ-2A?
ADSP-21369BSWZ-2A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-21369BSWZ-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-21369BSWZ-2A?
For technical support, including ADSP-21369BSWZ-2A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21369BSWZ-2A requirements.
6.How does Aetrix verify that ADSP-21369BSWZ-2A is sourced from the original manufacturer or authorized distributors?
All ADSP-21369BSWZ-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-21369BSWZ-2A meets industry standards.
7.What is the process for return or replacement of ADSP-21369BSWZ-2A?
All ADSP-21369BSWZ-2A units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21369BSWZ-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-21369BSWZ-2A part is unused and in its original packaging.
Return procedure for ADSP-21369BSWZ-2A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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