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Analog Devices Inc. ADSP-21262SKSTZ200
- Part No.:
- ADSP-21262SKSTZ200
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 144-LQFP
- Datasheet:
-
ADSP-21262SKSTZ200.pdf
- Description:
- IC DSP CONTROLLER 32BIT 144-LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADSP-21262SKSTZ200 from Analog Devices is a 32-bit/40-bit floating-point SHARC DSP optimized for high-performance multichannel audio processing, operating at 200 MHz core instruction rate, featuring 2 Mbit dual-ported SRAM, 4 Mbit mask-programmable ROM with preloaded surround sound decoders (Dolby Digital, DTS, WMA-PRO), and six full-duplex serial ports for I2S/TDM interfacing in home theater AV receivers.
For engineers reviewing the ADSP-21262SKSTZ200 datasheet, ADSP-21262SKSTZ200 pinout, ADSP-21262SKSTZ200 application, or ADSP-21262SKSTZ200 equivalent, key selection considerations include SIMD computational throughput (1200 MFLOPS), ROM-based audio decoder availability, dual-ported memory architecture for real-time parallel access, and digital audio interface (DAI) configurability via signal routing unit (SRU).
Technical Context
The ADSP-21262SKSTZ200 implements a dual-processing-element SIMD architecture (PEX and PEY), each with independent ALU, multiplier, shifter, and 32-register file, enabling parallel execution of identical instructions on distinct data streams. It supports IEEE 32-bit single-precision, 40-bit extended-precision floating-point, and 32-bit fixed-point arithmetic in single-cycle operations.
Its digital application interface (DAI) integrates two precision clock generators (PCGs), eight serial interfaces, an input data port (IDP) configurable as 8× I2S or 7× serial + 20-bit parallel acquisition, and a software-controllable signal routing unit (SRU) for dynamic peripheral interconnection - all synchronized to the 200 MHz core clock with 5 ns instruction cycle time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Instruction Rate | 200 MHz - enables 5 ns instruction cycle time for real-time audio algorithm execution without pipeline stalls. |
| Floating-Point Performance | 1200 MFLOPS - achieved via dual 32/40-bit computational units in SIMD mode, critical for concurrent multi-algorithm decoding (e.g., Dolby + DTS + post-processing). |
| On-Chip Memory | 2 Mbit dual-ported SRAM + 4 Mbit mask-ROM - supports simultaneous core and I/O processor access; ROM contains certified audio decoders (DTS-ES Matrix 6.1, WMA-PRO V7.1, AAC LC). |
| Serial Interfaces | 6 full-duplex SPORTs - deliver up to 24 audio channels (I2S/TDM), each with dedicated DMA channel and programmable word length (8–32 bits). |
| Digital Audio Interface | DAI with SRU, 2 PCGs, IDP - allows runtime reconfiguration of clock/data routing between peripherals without hardware changes, reducing board complexity. |
| Power Supply Requirements | VDDINT = 1.2 V, VDDEXT = 3.3 V, AVDD = 1.2 V - separate analog/digital rails isolate PLL noise; AVDD requires local ferrite-filtered bypassing per Figure 2. |
| JTAG Compliance | IEEE 1149.1 - supports full-speed emulation, register/memory inspection, and non-intrusive debugging without affecting system timing. |
Pinout & Package
ADSP-21262SKSTZ200 is housed in a 144-lead LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Analog Devices Rev. G datasheet Section 10 (Pin Function Descriptions), including dedicated SPORT, SPI, parallel port, DAI_Pxx, and JTAG signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SPORT0_DTPR | Serial Port 0 Transmit Data | Drives I2S/TDM left/right channel data; supports 8–32 bit word lengths and μ-law/A-law companding per channel. |
| DAI_P15 | Digital Application Interface Pin | Configurable via SRU as PCG output, IDP input, or flag I/O - enables flexible clock/data path assignment without PCB redesign. |
| CLKIN | External Clock Input | Accepts 12.5–50 MHz crystal or oscillator input; feeds on-chip PLL to generate internal 200 MHz core clock (16:1, 8:1, or 3:1 ratio selectable at boot). |
| BOOT_CFG0/1 | Boot Configuration Inputs | Determine boot source (SPI master/slave, parallel EPROM, or internal ROM) at power-up; latched on reset, not reconfigurable during operation. |
| TMS/TCK/TDO/TDI | JTAG Test Access Port | Enable IEEE 1149.1-compliant boundary scan, emulation, and secure debug access - requires 64-bit key authentication when ROM security is enabled. |
Key Features
| Feature | Design Value |
|---|---|
| SIMD Computational Architecture | Two parallel PEX/PEY processing elements execute identical instructions on independent data streams - delivers 5–10× speedup over prior SHARC for FIR/IIR filtering and FFTs. |
| ROM-Based Audio Decoder Suite | Preprogrammed DTS-ES Discrete 6.1, Dolby Pro Logic IIx, WMA-PRO V7.1, and MPEG2 AAC LC decoders eliminate external memory and reduce BOM cost in AV receivers. |
| Dual-Ported On-Chip Memory | 2 Mbit SRAM and 4 Mbit ROM accessible simultaneously by core and I/O processor - enables zero-wait-state real-time audio buffering and DMA-driven data flow. |
| Configurable Digital Audio Interface (DAI) | SRU-controlled routing between 8 serial interfaces, 2 PCGs, and IDP - allows dynamic assignment of clocks/data paths to match varying codec topologies without hardware modification. |
| Hardware Security Enforcement | 64-bit JTAG key authentication and ROM-only boot mode prevent unauthorized code extraction or external firmware loading - required for licensed audio IP protection. |
Applications
| Home Theater AV Receiver | Professional Audio Mixer |
|---|---|
Use Scenario: Real-time decoding and mixing of 7.1-channel Dolby Digital, DTS-HD, and WMA-PRO streams with dynamic range control and speaker calibration. IC Role / Device Role / Timing Role: Primary audio processor executing ROM-based decoders and custom post-processing algorithms with deterministic 5 ns instruction latency. Use Value: Eliminates need for external flash memory and reduces system-level latency by executing decoders directly from mask-ROM with no boot delay. |
Use Scenario: Low-latency digital signal routing, EQ, dynamics processing, and effects rendering across 32 input/16 output channels in live sound reinforcement systems. IC Role / Device Role / Timing Role: Core DSP engine managing 22-channel DMA transfers between six SPORTs, IDP, and SRAM while maintaining sub-100 μs end-to-end audio path latency. Use Value: Dual-ported memory and dedicated DMA channels enable concurrent acquisition, processing, and output without CPU intervention or buffer underruns. |
| Automotive Infotainment Head Unit | Digital Studio Monitor Controller |
Use Scenario: Integration of AM/FM tuner, Bluetooth A2DP, USB audio, and HDMI ARC into a single audio processing platform with surround virtualization. IC Role / Device Role / Timing Role: Central audio hub coordinating multiple asynchronous data sources via DAI's SRU and PCGs, synchronizing all streams to a common master clock. Use Value: Precision clock generators (PCGs) and flexible SRU routing eliminate external clock buffers and simplify timing domain bridging between disparate interfaces. |
Use Scenario: High-fidelity room correction, phase alignment, and loudspeaker management using real-time FIR filters and impulse response convolution. IC Role / Device Role / Timing Role: Floating-point computation engine performing 4096-tap FIR convolutions at 96 kHz sample rate with 40-bit extended precision to preserve SNR. Use Value: 40-bit extended-precision floating-point unit maintains >120 dB dynamic range across cascaded filter stages, preventing quantization noise accumulation. |
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-21266KBCZ200 | 136-ball BGA package; includes full ROM decoder suite (same as ADSP-21262SKSTZ200); identical 200 MHz core and memory map. | Targeted for space-constrained designs requiring higher I/O density and improved thermal dissipation via solder-ball interconnect. | Select when PCB layout favors BGA footprint, thermal performance is critical, and pin-for-pin compatibility with LQFP is not required. |
| ADSP-21369KCPZ200 | SHARC+ architecture; 450 MHz core; 1.5 MB L1 SRAM; enhanced SIMD with 2400 MFLOPS; supports DDR2 interface and larger external memory. | Required for next-generation applications demanding >2× compute throughput, multi-core task partitioning, or integration with high-bandwidth peripherals. | Choose for future-proofing where algorithm complexity exceeds ADSP-21262SKSTZ200 capacity, accepting higher power and toolchain migration effort. |
Compared with ADSP-21262SKSTZ200, ADSP-21266KBCZ200 offers identical functionality in a more compact BGA package but lacks LQFP pin compatibility, while ADSP-21369KCPZ200 delivers significantly higher performance and memory bandwidth at the cost of increased power and design complexity - making it suitable only when current-generation SHARC resources are insufficient.
Availability
ADSP-21262SKSTZ200 is available at Aetrix Electronics and suitable for home theater AV receivers, professional audio mixers, automotive infotainment head units, and digital studio monitor controllers requiring stable component supply and long-term industrial lifecycle support.
Supply support for ADSP-21262SKSTZ200 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-21262SKSTZ200 belongs to the SHARC family of SIMD-capable floating-point DSPs, designed specifically for real-time multichannel audio decoding, post-processing, and system control in cost-sensitive consumer and professional audio equipment.
FAQ
What audio decoder algorithms are preloaded in the ROM of the ADSP-21262SKSTZ200?
The ADSP-21262SKSTZ200 includes mask-programmed ROM containing Dolby Digital, Dolby Digital Surround EX, DTS-ES Discrete 6.1, DTS-ES Matrix 6.1, DTS 96/24 5.1, MPEG2 AAC LC, MPEG2 BC 2ch, WMA-PRO V7.1, Dolby Pro Logic II, Dolby Pro Logic 2x, and DTS Neo:6 decoders. These are factory-configured and cannot be modified post-production.
Does the ADSP-21262SKSTZ200 support simultaneous execution of multiple audio codecs?
Yes, the ADSP-21262SKSTZ200 supports concurrent execution of multiple decoders (e.g., Dolby + DTS + post-processing) using its dual-processing-element SIMD architecture and 2 Mbit dual-ported SRAM, which allows independent memory access by the core and I/O processor - essential for low-latency multistream audio handling.
What is the role of the Signal Routing Unit (SRU) in the ADSP-21262SKSTZ200 digital audio interface?
The SRU in the ADSP-21262SKSTZ200 is a software-configurable matrix that dynamically routes signals between DAI peripherals (PCGs, IDP, serial interfaces, flags). It enables runtime reassignment of clock/data paths - for example, connecting a PCG output to SPORT0_CLK without hardware changes - simplifying system integration across diverse audio codec topologies.
Can the ADSP-21262SKSTZ200 operate without external memory?
Yes, the ADSP-21262SKSTZ200 can execute entirely from on-chip resources: its 4 Mbit mask-ROM contains boot code and certified audio decoders, and 2 Mbit SRAM provides ample space for application code and audio buffers - enabling standalone operation in cost-sensitive designs where external memory adds BOM cost and layout complexity.
How does the ROM security feature function on the ADSP-21262SKSTZ200?
When enabled, the ADSP-21262SKSTZ200 boots exclusively from internal ROM/SRAM and disables external code loading and unrestricted JTAG access. A unique 64-bit key must be scanned via JTAG before emulation or debug features become available - preventing unauthorized firmware extraction or reverse engineering of licensed audio IP stored in ROM.
ADSP-21262SKSTZ200 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SHARC®
- Package/Case:
- 144-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Floating Point
- Interface:
- DAI, SPI
- Clock Rate:
- 200MHz
- Non-Volatile Memory:
- ROM (512kB)
- 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:
- 144-LQFP (20x20)
ADSP-21262SKSTZ200 FAQ
1.How can I place an order for ADSP-21262SKSTZ200 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-21262SKSTZ200 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-21262SKSTZ200 reliable?
The price and inventory of ADSP-21262SKSTZ200 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-21262SKSTZ200 is usually 5 days.
3.What payment methods are accepted for ADSP-21262SKSTZ200?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21262SKSTZ200 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-21262SKSTZ200?
ADSP-21262SKSTZ200 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-21262SKSTZ200 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-21262SKSTZ200?
For technical support, including ADSP-21262SKSTZ200 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21262SKSTZ200 requirements.
6.How does Aetrix verify that ADSP-21262SKSTZ200 is sourced from the original manufacturer or authorized distributors?
All ADSP-21262SKSTZ200 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-21262SKSTZ200 meets industry standards.
7.What is the process for return or replacement of ADSP-21262SKSTZ200?
All ADSP-21262SKSTZ200 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21262SKSTZ200, 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-21262SKSTZ200 part is unused and in its original packaging.
Return procedure for ADSP-21262SKSTZ200:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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