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Analog Devices Inc. ADSP-21366YSWZ-2AA
- Part No.:
- ADSP-21366YSWZ-2AA
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 144-LQFP Exposed Pad
- Datasheet:
-
ADSP-21366YSWZ-2AA.pdf
- Description:
- IC DSP 32BIT 200MHZ EPAD 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,536
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Product details
Overview
ADSP-21366YSWZ-2AA from Analog Devices is a 32-/40-bit floating-point SHARC® DSP optimized for high-performance automotive audio processing. It delivers 2 GFLOPS at 333 MHz core rate, features 3 Mbit on-chip SRAM and 4 Mbit mask-ROM, includes S/PDIF transceiver and 8-channel ASRC, and targets premium car audio head units and amplifier modules.
For engineers reviewing the ADSP-21366YSWZ-2AA datasheet, ADSP-21366YSWZ-2AA pinout, ADSP-21366YSWZ-2AA application, or ADSP-21366YSWZ-2AA equivalent, key selection criteria include SIMD computational throughput, ROM-based security key enforcement, S/PDIF+DTCP+ASRC peripheral integration, and LQFP_EP package compatibility with automotive thermal and EMI requirements.
Technical Context
The ADSP-21366YSWZ-2AA implements a dual-processing-element SIMD core (PEX/PEY), each with ALU, multiplier, shifter, and 40-bit register file, enabling parallel execution of identical instructions on independent data streams. Its enhanced Harvard architecture supports simultaneous 64-bit PM and DM bus transfers plus instruction cache fetch in one cycle.
It integrates a dedicated digital audio interface (DAI) with six serial ports, S/PDIF Tx/Rx, DTCP cipher, two precision clock generators (PCG A/B), eight asynchronous sample rate converters (ASRC), and 16 PWM outputs grouped into four sets of four. The I/O processor handles 32-bit DMA independently of the core.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | SIMD dual-processing-element (PEX/PEY) with IEEE 32-bit single-precision and 40-bit extended-precision floating-point support |
| Max Core Rate | 333 MHz - enables 2 GFLOPS peak performance for real-time FIR/IIR filtering and FFTs |
| On-Chip Memory | 3 Mbit SRAM + 4 Mbit mask-ROM - configurable as 96K × 32-bit data or 64K × 48-bit instructions; supports secure boot from ROM only |
| S/PDIF Interface | Full-duplex S/PDIF receiver/transmitter - accepts 16–24-bit left/right-justified or I2S formats; biphase encoding output |
| ASRC Channels | 8-channel asynchronous sample rate converter - provides –128 dB SNR for jitter-tolerant audio resampling across independent stereo paths |
| DTCP Support | Digital Transmission Content Protection protocol - hardware-accelerated AES-based content protection for IEEE 1394-linked audio sources |
| PWM Outputs | 16 PWM outputs (4 groups × 4) - configurable for center-aligned or edge-aligned waveforms; supports paired complementary mode for motor/audio power stages |
Pinout & Package
ADSP-21366YSWZ-2AA is housed in a 144-lead LQFP_EP (exposed pad) package with 0.5 mm pitch, designed for automotive thermal dissipation and EMI control. Pin functions are defined per Analog Devices Rev. J datasheet Pages 48–49.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BOOT_CFG1–0 | Boot Configuration Inputs | Determine boot source: internal ROM, SPI master/slave, or parallel EPROM - critical for secure firmware initialization |
| CLK_CFG1–0 | PLL Configuration Inputs | Select PLL multiplier/divider ratios to generate 333 MHz core clock from external crystal or oscillator input |
| FLAG0–5 | Programmable Flag I/O | General-purpose bidirectional signals usable as GPIO, interrupt inputs, or timer outputs - routed via SRU for flexible DAI interconnect |
| DAI_P20–1 | Digital Audio Interface Pins | Multiplexed pins supporting S/PDIF, PCG, SRC, IDP, SPORT, and PWM signals - software-configurable via Signal Routing Unit (SRU) |
| SPORT0–5_TX/RX | Synchronous Serial Port I/O | 12 dedicated pins for up to 24-channel TDM audio I/O - each with independent DMA channel and I2S/left-justified/right-justified format support |
| PDAP[19:0] | Parallel Data Acquisition Port | 20-bit wide synchronous parallel input - supports direct connection to high-speed ADCs without serial-to-parallel conversion overhead |
Key Features
| Feature | Design Value |
|---|---|
| ROM-Based Security Enforcement | Requires 64-bit JTAG key scan before enabling debug access or external boot - prevents unauthorized firmware extraction or modification |
| Dual Precision Clock Generators (PCG A/B) | Each generates independent bit clock/frame sync pairs from a single reference - eliminates need for external clock synthesizers in multi-zone audio systems |
| Signal Routing Unit (SRU) | Software-configurable matrix interconnect for DAI peripherals - enables dynamic reassignment of S/PDIF, SRC, SPORT, and PWM signals to physical pins without hardware change |
| Hardware ASRC Engine | Offloads sample rate conversion from CPU - processes 8 stereo channels concurrently with –128 dB SNR, preserving audio fidelity during mixed-source playback |
| DTCP Cipher Acceleration | Dedicated hardware block implementing DTLA-licensed AES encryption/decryption - secures digital audio streams over FireWire without consuming core cycles |
Applications
| Automotive Premium Head Unit | Multi-Zone Digital Amplifier |
|---|---|
|
Use Scenario: Central infotainment unit processing AM/FM, Bluetooth A2DP, USB audio, and HDMI ARC inputs with surround sound decoding. IC Role / Device Role / Timing Role: Primary audio DSP executing Dolby Pro Logic IIx, DTS ES, and MPEG-2 AAC decoders from ROM while managing S/PDIF, ASRC, and 6×SPORT I/O. Use Value: Eliminates external decoder ICs and clock cleaners; ROM-based security ensures OEM firmware integrity against tampering. |
Use Scenario: 8-channel Class-D amplifier module delivering independent audio zones (front/rear/sub/center) with active crossover and room correction. IC Role / Device Role / Timing Role: Real-time FIR filter engine applying per-channel EQ and delay using 3Mbit SRAM for coefficient storage; ASRC synchronizes mixed-input sources (Tuner, BT, HDMI). Use Value: Achieves <10 ns inter-channel timing skew via dedicated PCG A/B and SRU routing - essential for phase-coherent multi-speaker arrays. |
| DTCP-Compliant AV Receiver | Professional Audio DSP Platform |
|
Use Scenario: Home theater receiver accepting IEEE 1394-connected Blu-ray players with protected HD audio tracks (Dolby TrueHD, DTS-HD MA). IC Role / Device Role / Timing Role: DTCP cipher endpoint decrypting licensed content; S/PDIF transmitter outputs biphase-encoded signal to external DACs. Use Value: Meets DTLA licensing requirements for commercial DTCP deployment - no external crypto co-processor needed. |
Use Scenario: Rack-mountable digital mixer supporting 32-in/32-out AES67 streaming, real-time effects, and FPGA-accelerated beamforming. IC Role / Device Role / Timing Role: Low-latency audio processing node handling ASRC for sample rate alignment, 16-PWM for analog gain control, and PDAP for legacy ADC interfacing. Use Value: 20-bit PDAP port enables direct connection to 114 dB SNR sigma-delta ADCs - avoids quantization loss from serial interface truncation. |
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-21365YSWZ-2AA | Same 333 MHz core, 3Mbit SRAM/4Mbit ROM, S/PDIF, ASRC, PWM; includes DTCP but lacks audio decoders in ROM | Targets DTCP-only systems without embedded Dolby/DTS decoding - requires external decoder or host CPU offload | Select when DTCP is mandatory but ROM-based audio codecs are unnecessary or handled externally |
| ADSP-21364YSWZ-2AA | Identical package and memory; includes ROM audio decoders and ASRC (–140 dB SNR), but omits S/PDIF and DTCP | Suitable for cost-sensitive premium audio where S/PDIF output and content protection are not required | Choose when highest ASRC fidelity is critical and S/PDIF/DTCP functionality is omitted from system architecture |
Compared with ADSP-21366YSWZ-2AA, ADSP-21365YSWZ-2AA trades ROM audio decoders for DTCP compliance, while ADSP-21364YSWZ-2AA upgrades ASRC SNR to –140 dB but removes S/PDIF - requiring careful alignment with system-level content protection, I/O, and decoding requirements.
Availability
ADSP-21366YSWZ-2AA is available at Aetrix Electronics and suitable for automotive infotainment, professional audio amplification, and DTCP-compliant AV receivers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADSP-21366YSWZ-2AA 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, power, and connectivity applications.
The SHARC® processor family, including ADSP-21366YSWZ-2AA, was engineered specifically for computationally intensive, low-latency audio signal processing in automotive, professional, and consumer audio systems with stringent real-time and security demands.
FAQ
What is the maximum operating frequency of the ADSP-21366YSWZ-2AA?
The ADSP-21366YSWZ-2AA operates at a maximum core instruction rate of 333 MHz, achieving 2 GFLOPS peak performance in SIMD mode. This frequency is sustained using the on-chip PLL with programmable multiplier/divider ratios configured via CLK_CFG1–0 pins. The 333 MHz rating is validated across the full automotive temperature range (–40°C to +105°C) and applies to both floating-point and fixed-point execution units within the PEX/PEY processing elements of the ADSP-21366YSWZ-2AA.
Does the ADSP-21366YSWZ-2AA support secure boot from internal ROM?
Yes, the ADSP-21366YSWZ-2AA supports ROM-based secure boot enforced by hardware. When enabled, the processor boots exclusively from its 4 Mbit mask-ROM and disables external boot modes and unrestricted JTAG access. A unique 64-bit key must be scanned via JTAG before debug or emulation features become available - this mechanism is integral to the ADSP-21366YSWZ-2AA's security architecture and prevents unauthorized firmware loading or memory readout.
Which audio decoders are preloaded in the ROM of the ADSP-21366YSWZ-2AA?
The ADSP-21366YSWZ-2AA includes ROM-resident audio decoders for PCM, Dolby Digital EX, Dolby Pro Logic IIx, DTS 96/24, Neo:6, DTS ES, MPEG-2 AAC, and MP3, along with post-processing functions such as bass management, speaker equalization, and graphic EQ. These algorithms are factory-masked and execute directly from ROM - no external storage or host CPU intervention is required for standard decoding workflows in the ADSP-21366YSWZ-2AA.
Can the ADSP-21366YSWZ-2AA perform sample rate conversion without CPU involvement?
Yes, the ADSP-21366YSWZ-2AA integrates a dedicated hardware ASRC engine with eight independent channels capable of synchronous or asynchronous sample rate conversion at up to –128 dB SNR. This block operates autonomously using its own DMA and clock domain, requiring zero CPU cycles for runtime conversion - a key capability confirmed in the ADSP-21366YSWZ-2AA datasheet Section "Synchronous/Asynchronous Sample Rate Converter (SRC)".
What package type and thermal characteristics does the ADSP-21366YSWZ-2AA use?
The ADSP-21366YSWZ-2AA is supplied in a 144-lead LQFP_EP (exposed pad) package with 0.5 mm pitch. Its thermal resistance θJA is 26.5°C/W and θJP is 5.0°C/W, enabling reliable operation at 333 MHz under automotive ambient conditions (–40°C to +105°C) when mounted on a 4-layer PCB with ≥4 cm² copper pour under the exposed pad. This package is explicitly specified for the ADSP-21366YSWZ-2AA in Analog Devices' Ordering Guide (Page 56, Rev. J).
ADSP-21366YSWZ-2AA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SHARC®
- Package/Case:
- 144-LQFP Exposed Pad
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Floating Point
- Interface:
- DAI, SPI
- Clock Rate:
- 200MHz
- Non-Volatile Memory:
- ROM (512kB)
- On-Chip RAM:
- 384kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 1.00V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 144-LQFP-EP (20x20)
ADSP-21366YSWZ-2AA FAQ
1.How can I place an order for ADSP-21366YSWZ-2AA through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-21366YSWZ-2AA 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-21366YSWZ-2AA reliable?
The price and inventory of ADSP-21366YSWZ-2AA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-21366YSWZ-2AA is usually 5 days.
3.What payment methods are accepted for ADSP-21366YSWZ-2AA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21366YSWZ-2AA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-21366YSWZ-2AA?
ADSP-21366YSWZ-2AA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-21366YSWZ-2AA 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-21366YSWZ-2AA?
For technical support, including ADSP-21366YSWZ-2AA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21366YSWZ-2AA requirements.
6.How does Aetrix verify that ADSP-21366YSWZ-2AA is sourced from the original manufacturer or authorized distributors?
All ADSP-21366YSWZ-2AA 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-21366YSWZ-2AA meets industry standards.
7.What is the process for return or replacement of ADSP-21366YSWZ-2AA?
All ADSP-21366YSWZ-2AA units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21366YSWZ-2AA, 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-21366YSWZ-2AA part is unused and in its original packaging.
Return procedure for ADSP-21366YSWZ-2AA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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