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Analog Devices Inc. ADSP-21364BBC-1AA
- Part No.:
- ADSP-21364BBC-1AA
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 136-LFBGA, CSPBGA
- Datasheet:
-
ADSP-21364BBC-1AA.pdf
- Description:
- IC DSP 32BIT 333MHZ 136-CSPBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,010
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Product details
Overview
ADSP-21364BBC-1AA from Analog Devices is a 32-/40-bit floating-point SHARC® DSP optimized for high-performance automotive audio processing, featuring 333 MHz core instruction rate, 3M bits of on-chip SRAM, 4M bits of mask-programmable ROM, and integrated digital audio interface (DAI) with S/PDIF transceiver and 8-channel asynchronous sample rate converter (ASRC). It executes two GFLOPS in SIMD mode and supports real-time audio decoding including Dolby Pro Logic IIx and DTS 96/24.
For engineers reviewing the ADSP-21364BBC-1AA datasheet, ADSP-21364BBC-1AA pinout, ADSP-21364BBC-1AA application, or ADSP-21364BBC-1AA equivalent, key selection criteria include its audiocentric peripheral set (PCG, ASRC, DTCP), ROM-based security with 64-bit JTAG key enforcement, SIMD computational architecture with dual ALU/multiplier units, and LQFP_EP package compatibility for thermal and layout-constrained automotive head unit designs.
Technical Context
The ADSP-21364BBC-1AA implements a dual-processing-element SIMD core (PEX and PEY), each with independent ALU, multiplier, shifter, and 16×40-bit register file, enabling parallel execution of identical instructions on distinct data streams. Its enhanced Harvard architecture supports simultaneous single-cycle fetch of one 48-bit instruction and four 32-bit operands via PM/DM buses and instruction cache.
Peripherals are managed by a dedicated I/O processor with 32-bit DMA, six full-duplex serial ports (SPORTs), two SPI interfaces, 16 PWM outputs grouped in four sets, and a flexible digital audio interface (DAI) with signal routing unit (SRU) for dynamic interconnection of S/PDIF, PCG, IDP, and ASRC blocks - all operating under independent clock domains (core CLK and peripheral PCLK).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 32-/40-bit floating-point SIMD SHARC with dual PEX/PEY processing elements and IEEE 754-compliant arithmetic units |
| Max Core Instruction Rate | 333 MHz - enables real-time execution of 1024-point complex FFT in 27.9 μs and FIR filter per tap in 1.5 ns |
| On-Chip Memory | 3M bits SRAM + 4M bits ROM - configurable as 96K × 32-bit data or 64K × 48-bit instructions; supports 16-bit floating-point format to double effective storage density |
| Digital Audio Peripherals | S/PDIF Tx/Rx, 8-channel ASRC (–140 dB SNR), dual precision clock generators (PCG A/B), DTCP cipher, and IDP with eight serial input channels |
| Package & Thermal | 144-lead LQFP_EP (16 mm × 16 mm, 0.5 mm pitch) with exposed thermal pad - supports industrial temperature range (–40°C to +85°C) and 1.2 V core / 3.3 V I/O supply rails |
| Security Features | ROM-based boot enforcement, JTAG access gated by customer-specific 64-bit key, and programmable protected memory regions for sensitive code isolation |
Pinout & Package
ADSP-21364BBC-1AA is housed in a 144-lead LQFP_EP (Low-Profile Quad Flat Package with Exposed Pad), measuring 16 mm × 16 mm with 0.5 mm lead pitch and thermally enhanced underside pad for automotive-grade thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_CORE (Pins 1–4, 7–10, 13–16, 19–22, 25–28, 31–34, 37–40, 43–46, 49–52, 55–58, 61–64, 67–70, 73–76, 79–82, 85–88, 91–94, 97–100, 103–106, 109–112, 115–118, 121–124, 127–130, 133–136, 139–142) | Core power supply | Supplies 1.2 V ±3% to dual processing elements, instruction cache, and DAGs; requires local 100 nF + 10 μF decoupling per power domain |
| VDD_IO (Pins 5, 11, 17, 23, 29, 35, 41, 47, 53, 59, 65, 71, 77, 83, 89, 95, 101, 107, 113, 119, 125, 131, 137, 143) | I/O power supply | Supplies 3.3 V ±5% to DAI pins, SPORTs, SPI, PWM, and parallel port; supports mixed-voltage interfacing with external codecs and memory |
| BOOT_CFG0/1 (Pins 12, 13) | Boot configuration inputs | Determine boot source at power-up: internal ROM, SPI master/slave, or parallel port EPROM - latched on reset and held static during initialization |
| CLKIN (Pin 144) | External reference clock input | Accepts 1–50 MHz crystal or oscillator input to PLL; used with internal PLL to generate 333 MHz core clock and programmable PCLK for peripherals |
| TCK/TMS/TDO/TDI (Pins 110–113) | JTAG test access port | Supports boundary scan, emulation, and debug; access enabled only after correct 64-bit key is scanned - prevents unauthorized firmware extraction or modification |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Element SIMD Core | Enables concurrent execution of identical instructions across PEX and PEY - doubles throughput for FIR, IIR, and FFT algorithms without software restructuring |
| Integrated Digital Audio Interface (DAI) | Combines S/PDIF, ASRC, PCG, IDP, and SRU in one subsystem - eliminates external audio interface ICs and reduces BOM count in premium car audio systems |
| ROM-Based Security Enforcement | Prevents external boot and restricts JTAG access unless valid 64-bit key is presented - ensures IP protection for licensed audio codecs and post-processing algorithms |
| Asynchronous Sample Rate Converter (ASRC) | Four independent SRC blocks delivering –140 dB SNR - enables seamless mixing of audio streams from multiple sources (e.g., Bluetooth, USB, tuner) with different sample rates and jitter profiles |
| Flexible PWM Generation | 16 outputs organized in four groups of four - supports center-aligned or edge-aligned waveforms with paired/complementary modes for Class-D amplifier control and motor drive applications |
Applications
| Automotive Infotainment Head Unit | Premium Car Audio DSP |
|---|---|
Use Scenario: Real-time audio processing in OEM dashboard-mounted infotainment systems supporting multi-source playback (AM/FM, Bluetooth, USB, HDMI ARC) and active noise cancellation. IC Role / Device Role / Timing Role: Primary audio DSP executing Dolby Atmos decoding, speaker equalization, and 3D spatial rendering with deterministic low-latency response. Use Value: On-chip ASRC and S/PDIF eliminate need for external resampling ICs; ROM-based security protects proprietary tuning profiles and brand-specific audio signatures. |
Use Scenario: High-fidelity DSP engine in aftermarket amplifiers and OEM premium sound systems requiring >120 dB dynamic range and sub-100 ns timing jitter tolerance. IC Role / Device Role / Timing Role: Central timing-critical audio processor managing 24+ channel I2S routing, phase-aligned SRC outputs, and precision clock generation for DACs and ADCs. Use Value: Dual PCG units provide independent, jitter-clean clocks for multiple DACs; –140 dB ASRC SNR preserves studio-master audio fidelity across mixed-sample-rate inputs. |
| Professional Audio Mixer | Digital Soundbar Processor |
Use Scenario: Rack-mount digital mixer handling 64-channel TDM audio streams with real-time effects (reverb, compression, EQ) and multichannel monitoring. IC Role / Device Role / Timing Role: High-throughput signal router and processor using six SPORTs and SRU to dynamically assign I/O paths between analog I/O cards and DSP resources. Use Value: Six full-duplex SPORTs support up to 128 TDM channels per frame; on-chip 3M-bit SRAM buffers large audio buffers without external DRAM latency penalties. |
Use Scenario: Compact soundbar platform integrating voice assistant wake-word detection, virtual surround upmixing, and adaptive room correction. IC Role / Device Role / Timing Role: Dual-role processor running both audio post-processing and lightweight neural network inference on 16-bit floating-point data. Use Value: 16-bit FP format doubles on-chip data storage capacity; integrated IDP accepts eight-channel I2S from MEMS microphone array without external serializer. |
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-21365BBCZ-1AA | Includes DTCP cipher and audio decoders in ROM; same 333 MHz core, 3M-bit SRAM, and 144-LQFP_EP package | Required for systems needing Digital Transmission Content Protection compliance (e.g., HDMI-connected premium content sources) | Select when DTCP licensing and built-in Dolby/DTS decoder support are mandatory; otherwise ADSP-21364BBC-1AA offers identical audio processing capability at lower cost |
| ADSP-21369BBCZ-1AA | Higher 400 MHz core speed, 4M-bit SRAM, and enhanced ASRC (–144 dB SNR); same pinout and software-compatible but not drop-in due to voltage and thermal requirements | Suitable for next-generation systems demanding >2 GFLOPS and extended dynamic range beyond –140 dB | Choose for future-proofing where thermal headroom and power delivery support 1.25 V core rail; requires PCB layout review for thermal pad and decoupling updates |
Compared with ADSP-21364BBC-1AA, ADSP-21365BBCZ-1AA adds DTCP and ROM decoders at identical speed and memory, while ADSP-21369BBCZ-1AA delivers higher compute and SNR at the cost of increased power and revised thermal design - making ADSP-21364BBC-1AA the optimal balance of performance, integration, and automotive thermal robustness.
Availability
ADSP-21364BBC-1AA is available at Aetrix Electronics and suitable for automotive infotainment head units, premium car audio DSP modules, and professional digital mixers requiring stable component supply, long-lifecycle support, and AEC-Q100-aligned manufacturing traceability.
Supply support for ADSP-21364BBC-1AA 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-21364BBC-1AA belongs to the SHARC® family of SIMD DSPs designed specifically for computationally intensive, low-latency audio signal processing in automotive, professional, and consumer audio equipment - emphasizing audiocentric peripherals and ROM-based IP protection.
FAQ
What is the maximum operating frequency of the ADSP-21364BBC-1AA?
The ADSP-21364BBC-1AA operates at a maximum core instruction rate of 333 MHz, achieved via its on-chip PLL locked to an external 1–50 MHz reference clock. This frequency enables deterministic execution of real-time audio algorithms such as 1024-point FFT in 27.9 μs and FIR filtering at 1.5 ns per tap. The ADSP-21364BBC-1AA maintains this speed across its specified industrial temperature range (–40°C to +85°C) with appropriate 1.2 V core supply regulation and thermal management.
Does the ADSP-21364BBC-1AA support S/PDIF and ASRC functionality?
Yes, the ADSP-21364BBC-1AA integrates a fully compliant S/PDIF transmitter/receiver and four-channel asynchronous sample rate converter (ASRC) with –140 dB SNR performance. These functions are implemented in dedicated hardware within the digital audio interface (DAI) subsystem and operate independently of the core processor - allowing concurrent audio stream resampling and biphase encoding without consuming CPU cycles. The ADSP-21364BBC-1AA uses these features for jitter-tolerant multi-source audio mixing in automotive and professional applications.
What package type and thermal characteristics does the ADSP-21364BBC-1AA use?
The ADSP-21364BBC-1AA is supplied in a 144-lead LQFP_EP package (16 mm × 16 mm, 0.5 mm pitch) with an exposed thermal pad on the underside. Its thermal resistance θJA is 23.5°C/W, and θJP (junction-to-pad) is 4.2°C/W, enabling reliable operation at 333 MHz in automotive environments when mounted on a 4-layer PCB with ≥4 thermal vias under the pad. The package supports industrial temperature range (–40°C to +85°C) and requires separate 1.2 V core and 3.3 V I/O supply rails with localized decoupling.
How does ROM-based security work on the ADSP-21364BBC-1AA?
The ADSP-21364BBC-1AA enforces ROM-based security by disabling external boot modes and restricting JTAG access unless a unique 64-bit customer key is scanned through the TDI pin during power-up. When enabled, the processor boots exclusively from internal mask-ROM containing protected firmware, and no external code can be loaded. This mechanism prevents unauthorized firmware extraction, reverse engineering, or field reprogramming - critical for safeguarding licensed audio codecs and OEM-specific tuning algorithms deployed in the ADSP-21364BBC-1AA.
Is the ADSP-21364BBC-1AA pin-compatible with other SHARC processors?
The ADSP-21364BBC-1AA shares the same 144-lead LQFP_EP package footprint and pin assignment with ADSP-21362BBC-1AA, ADSP-21363BBC-1AA, ADSP-21365BBCZ-1AA, and ADSP-21366BBCZ-1AA - enabling direct PCB reuse across the ADSP-2136x family. However, functional differences exist: ADSP-21363 lacks S/PDIF and ASRC, while ADSP-21365 adds DTCP. Therefore, while mechanical replacement is possible, firmware and peripheral initialization must be validated per variant. The ADSP-21364BBC-1AA remains the recommended choice for balanced audio feature set and automotive qualification.
ADSP-21364BBC-1AA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SHARC®
- Package/Case:
- 136-LFBGA, CSPBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Fixed/Floating Point
- Interface:
- DAI, SPI
- Clock Rate:
- 333MHz
- Non-Volatile Memory:
- ROM (512kB)
- On-Chip RAM:
- 384kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 1.20V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 136-CSPBGA (12x12)
ADSP-21364BBC-1AA FAQ
1.How can I place an order for ADSP-21364BBC-1AA through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-21364BBC-1AA 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-21364BBC-1AA reliable?
The price and inventory of ADSP-21364BBC-1AA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-21364BBC-1AA is usually 5 days.
3.What payment methods are accepted for ADSP-21364BBC-1AA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21364BBC-1AA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-21364BBC-1AA?
ADSP-21364BBC-1AA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-21364BBC-1AA 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-21364BBC-1AA?
For technical support, including ADSP-21364BBC-1AA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21364BBC-1AA requirements.
6.How does Aetrix verify that ADSP-21364BBC-1AA is sourced from the original manufacturer or authorized distributors?
All ADSP-21364BBC-1AA 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-21364BBC-1AA meets industry standards.
7.What is the process for return or replacement of ADSP-21364BBC-1AA?
All ADSP-21364BBC-1AA units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21364BBC-1AA, 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-21364BBC-1AA part is unused and in its original packaging.
Return procedure for ADSP-21364BBC-1AA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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