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Analog Devices Inc. ADSP-21364KSQZ-1AA
- Part No.:
- ADSP-21364KSQZ-1AA
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 144-LQFP Exposed Pad
- Datasheet:
-
ADSP-21364KSQZ-1AA.pdf
- Description:
- IC DSP 32BIT 333MHZ 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,796
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Product details
Overview
ADSP-21364KSQZ-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-ROM, and integrated S/PDIF transceiver with DTCP support. It executes two GFLOPS in SIMD mode and delivers 27.9 μs 1024-point complex FFT performance.
For engineers reviewing the ADSP-21364KSQZ-1AA datasheet, ADSP-21364KSQZ-1AA pinout, ADSP-21364KSQZ-1AA application, or ADSP-21364KSQZ-1AA equivalent, key selection criteria include its 144-lead LQFP_EP package, ROM-based security with 64-bit JTAG key, 8-channel ASRC (–140 dB SNR), and dedicated audio peripherals including PCG, IDP, and DAI routing capability.
Technical Context
The ADSP-21364KSQZ-1AA 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 single-cycle fetch of one 48-bit instruction and four 32-bit operands via PM/DM buses and instruction cache.
It integrates a digital audio interface (DAI) with six serial ports, S/PDIF Tx/Rx, DTCP cipher, eight-channel asynchronous sample rate converter (ASRC), precision clock generators A/B, and signal routing unit (SRU) for flexible peripheral interconnection. The I/O processor handles 32-bit DMA independently of the core, supporting concurrent memory-to-peripheral transfers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | SIMD dual-processing-element (PEX/PEY) with IEEE 32-bit/40-bit floating-point and 32-bit fixed-point support |
| Max Core Rate | 333 MHz - enables real-time execution of computationally intensive audio algorithms like 1024-point FFT in 27.9 μs |
| On-Chip Memory | 3M bits SRAM + 4M bits mask-ROM - configurable as 96K × 32-bit data or 64K × 48-bit instructions; supports 16-bit FP format to double storage density |
| ASRC Performance | –140 dB SNR across 8 channels - provides ultra-low-noise sample rate conversion for multi-source audio mixing without external DAC jitter cleanup |
| S/PDIF Interface | Integrated receiver/transmitter with biphase encoding - accepts 16/18/20/24-bit left-justified, I2S, or right-justified input; routes via SRU from SPORT, PCG, or SRC |
| DTCP Support | Digital Transmission Content Protection protocol - hardware-accelerated encryption for secure content distribution over IEEE 1394; licensed via DTLA |
| Package | 144-lead LQFP_EP (10 mm × 10 mm, 0.5 mm pitch) - exposes all DAI pins, JTAG, parallel port, and PWM outputs for automotive board layout |
Pinout & Package
ADSP-21364KSQZ-1AA is housed in a 144-lead LQFP_EP package with exposed thermal pad, designed for automotive-grade thermal dissipation and EMI control. Pin assignments follow Analog Devices' standard ADSP-2136x LQFP pinout per Rev. J datasheet pages 48–49.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DAI_P0–P19 | Digital Audio Interface I/O | Configurable as S/PDIF Tx/Rx, PCG outputs, IDP inputs, or SPORT signals via SRU; enables software-defined audio routing |
| SPORT0–5 | Synchronous Serial Port | Six full-duplex ports supporting TDM, I2S, or left-justified modes; each with dedicated DMA channel for zero-CPU-overhead audio streaming |
| PP_AD0–15 | Parallel Port Address/Data | Multiplexed 16-bit bus for booting from EPROM or interfacing to external SRAM/peripherals at fPCLK/4 rate |
| JTAG_TCK/TMS/TDI/TDO | IEEE 1149.1 Test Access Port | Supports boundary scan and emulation only after successful 64-bit key authentication; prevents unauthorized code readout |
| PWM0–15 | Pulse-Width Modulation Outputs | 16 outputs grouped into four sets of four; generate center-aligned or edge-aligned waveforms with paired/complementary operation for Class-D amplifier control |
Key Features
| Feature | Design Value |
|---|---|
| SIMD Computational Engine | Two parallel PEX/PEY units execute identical instructions on independent data - doubles throughput for FIR/IIR filtering and matrix math without code rewrite |
| ROM-Based Security | 64-bit JTAG key authentication required before debug access or external boot - prevents cloning and ensures firmware integrity in production audio systems |
| Digital Audio Interface (DAI) | Software-configurable SRU matrix connects DAI peripherals (S/PDIF, PCG, SRC, IDP) - eliminates fixed hardware routing constraints and enables custom audio signal paths |
| Asynchronous Sample Rate Converter | 8-channel ASRC with –140 dB SNR - performs jitter-free sample rate translation between independent clock domains (e.g., S/PDIF receiver and internal PLL) |
| Precision Clock Generators | Two independent PCG units (A/B), each generating clock/frame sync pairs - supports multiple audio codecs with different master clock requirements simultaneously |
Applications
| Automotive Infotainment Head Unit | High-End Home Theater Receiver |
|---|---|
Use Scenario: Real-time decoding of Dolby Digital EX, DTS ES, and MPEG-2 AAC audio streams while applying speaker equalization and bass management. IC Role / Device Role / Timing Role: Primary audio DSP executing ROM-based decoders and user-configurable post-processing algorithms with deterministic latency. Use Value: On-chip 4M-bit ROM stores certified decoder binaries; 333 MHz SIMD core processes 7.1-channel audio at <1 ms group delay. |
Use Scenario: Multi-source audio switching (HDMI, optical S/PDIF, analog ADC) with sample rate alignment, dynamic range compression, and room correction. IC Role / Device Role / Timing Role: Central audio hub managing clock domain bridging via ASRC and synchronizing multiple digital interfaces using PCG A/B. Use Value: 8-channel ASRC eliminates audible clicks during source switching; DAI SRU enables runtime reconfiguration of signal flow without FPGA logic. |
| Professional Audio DSP Mixer | Automotive Active Noise Cancellation (ANC) |
Use Scenario: Low-latency mixing of 24+ input channels with parametric EQ, dynamics processing, and output routing to 16 amplified zones. IC Role / Device Role / Timing Role: Real-time audio engine handling simultaneous I/O via six SPORTs, IDP, and parallel port - all with dedicated DMA channels. Use Value: Dual 64-bit PM/DM buses sustain 4 data transfers per cycle; 3M-bit SRAM buffers >100 ms of 24-bit/96 kHz audio per channel. |
Use Scenario: Adaptive feedback cancellation in vehicle cabin using microphone array inputs and speaker outputs with sub-100 μs loop latency. IC Role / Device Role / Timing Role: Dedicated ANC coprocessor running adaptive LMS filters on 40-bit extended-precision data to suppress engine harmonics. Use Value: 40-bit floating-point accumulator prevents quantization noise buildup in deep recursive filters; on-chip ROM stores calibration coefficients. |
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-21365KSZ-3 | Same 333 MHz core, 3M-bit SRAM/4M-bit ROM, but adds audio decoders in ROM (Dolby Pro Logic IIx, DTS 96/24); no DTCP support. | Better suited for consumer AV receivers requiring built-in decoder licensing; lacks DTCP needed for premium automotive content protection. | Select ADSP-21365KSZ-3 when ROM-based decoder compliance is mandatory and DTCP is unnecessary. |
| ADSP-21362KBZ-2 | 333 MHz core, same memory, includes DTCP and S/PDIF, but omits ASRC - SNR limited to –128 dB vs. –140 dB on ADSP-21364KSQZ-1AA. | Acceptable for cost-sensitive automotive audio where ultra-low-jitter sample rate conversion is not required. | Choose ADSP-21362KBZ-2 only if ASRC SNR margin is non-critical and BGA packaging is preferred. |
Compared with ADSP-21365KSZ-3 and ADSP-21362KBZ-2, the ADSP-21364KSQZ-1AA uniquely combines DTCP, S/PDIF, and –140 dB ASRC in an LQFP package - making it the only option for automotive infotainment requiring both content security and studio-grade sample rate conversion without BGA assembly.
Availability
ADSP-21364KSQZ-1AA is available at Aetrix Electronics and suitable for automotive infotainment head units, high-end home theater receivers, and professional audio DSP mixers requiring stable component supply, long-term lifecycle assurance, and automotive-grade qualification.
Supply support for ADSP-21364KSQZ-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 company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, communications, and industrial applications.
The ADSP-21364KSQZ-1AA belongs to the SHARC® family of SIMD DSPs, engineered specifically for deterministic, low-latency audio signal processing in automotive and premium consumer audio systems with integrated security and audiocentric peripherals.
FAQ
What is the maximum operating frequency of the ADSP-21364KSQZ-1AA?
The ADSP-21364KSQZ-1AA operates at a maximum core instruction rate of 333 MHz, delivering up to two GFLOPS in SIMD mode. This frequency is achieved using the on-chip PLL with programmable multiplier/divider ratios, and is validated under automotive temperature ranges (–40°C to +105°C) per the Rev. J datasheet specifications.
Does the ADSP-21364KSQZ-1AA support S/PDIF transmission and reception?
Yes, the ADSP-21364KSQZ-1AA integrates a fully compliant S/PDIF transceiver capable of both transmission and reception. It accepts 16/18/20/24-bit audio formats in I2S, left-justified, or right-justified configurations, and routes signals through the SRU from SPORTs, PCGs, or ASRC - all documented in the ADSP-2136x Rev. J datasheet Section 7.
How does ROM-based security work on the ADSP-21364KSQZ-1AA?
The ADSP-21364KSQZ-1AA implements ROM-based security by requiring a unique 64-bit key scanned via JTAG before enabling debug access or external boot modes. Without correct key authentication, the device boots exclusively from internal ROM and blocks unauthorized code readout - a feature confirmed in the General Description section of the Rev. J datasheet.
What package type is used for the ADSP-21364KSQZ-1AA?
The ADSP-21364KSQZ-1AA uses a 144-lead LQFP_EP (Leadless Quad Flat Package with Exposed Pad) measuring 10 mm × 10 mm with 0.5 mm pitch. This package is explicitly listed in Table 2 and detailed in Package Dimensions (Page 53) of the ADSP-2136x Rev. J datasheet, and supports automotive thermal and mechanical reliability requirements.
Is the ADSP-21364KSQZ-1AA pin-compatible with other ADSP-2136x family members?
The ADSP-21364KSQZ-1AA shares the same 144-lead LQFP_EP pinout with ADSP-21362KBZ-2 and ADSP-21365KSZ-3 per the Rev. J datasheet pin configuration diagrams (Pages 48–49), but functional differences exist - notably ASRC performance (–140 dB vs. –128 dB) and ROM decoder content. Pin compatibility enables footprint reuse, but firmware and peripheral initialization must be verified per variant.
ADSP-21364KSQZ-1AA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SHARC®
- Package/Case:
- 144-LQFP Exposed Pad
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 144-LQFP (20x20)
ADSP-21364KSQZ-1AA FAQ
1.How can I place an order for ADSP-21364KSQZ-1AA through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-21364KSQZ-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-21364KSQZ-1AA reliable?
The price and inventory of ADSP-21364KSQZ-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-21364KSQZ-1AA is usually 5 days.
3.What payment methods are accepted for ADSP-21364KSQZ-1AA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21364KSQZ-1AA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-21364KSQZ-1AA?
ADSP-21364KSQZ-1AA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-21364KSQZ-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-21364KSQZ-1AA?
For technical support, including ADSP-21364KSQZ-1AA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21364KSQZ-1AA requirements.
6.How does Aetrix verify that ADSP-21364KSQZ-1AA is sourced from the original manufacturer or authorized distributors?
All ADSP-21364KSQZ-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-21364KSQZ-1AA meets industry standards.
7.What is the process for return or replacement of ADSP-21364KSQZ-1AA?
All ADSP-21364KSQZ-1AA units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21364KSQZ-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-21364KSQZ-1AA part is unused and in its original packaging.
Return procedure for ADSP-21364KSQZ-1AA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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