My Inquiry
My Account
Analog Devices Inc. ADSP-21261SKBCZ150
- Part No.:
- ADSP-21261SKBCZ150
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 136-LFBGA, CSPBGA
- Datasheet:
-
ADSP-21261SKBCZ150.pdf
- Description:
- IC DSP 32BIT 150MHZ 136CSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,063
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADSP-21261SKBCZ150 from Analog Devices is a 32-bit/40-bit floating-point SHARC DSP optimized for high-performance audio processing, operating at 150 MHz core instruction rate, featuring 1 Mbit dual-ported SRAM, 3 Mbit mask-programmable ROM, and four full-duplex serial ports. It executes multichannel surround sound decoding algorithms including Dolby Digital, DTS, and MPEG2 AAC LC in ROM, and supports real-time audio postprocessing in consumer AV receivers and digital mixing consoles.
For engineers reviewing the ADSP-21261SKBCZ150 datasheet, ADSP-21261SKBCZ150 pinout, ADSP-21261SKBCZ150 application, or ADSP-21261SKBCZ150 equivalent, key selection criteria include SIMD computational throughput (900 MFLOPS), on-chip ROM decoder configuration, 136-ball BGA package compatibility, and JTAG-emulation support for real-time debugging of audio signal chains.
Technical Context
The ADSP-21261SKBCZ150 implements a dual-processing-element SIMD architecture with PEX (always active) and PEY (software-enabled), each containing independent ALU, multiplier, shifter, and 32-register file. It delivers 900 MFLOPS at 150 MHz with 5 ns instruction cycle time and supports IEEE 32-bit single-precision, 40-bit extended-precision floating-point, and 32-bit fixed-point data formats.
Its digital application interface (DAI) integrates two precision clock generators (PCGs), an 8-channel I²S/serial input data port (IDP), six flag I/Os, three programmable timers, and a software-configurable signal routing unit (SRU). Memory subsystem includes dual-ported SRAM and ROM blocks accessible via separate PM and DM buses, enabling simultaneous core and I/O processor access with zero-wait-state operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Instruction Rate | 150 MHz - enables 900 MFLOPS SIMD performance for real-time audio filtering and FFT-based effects processing |
| On-Chip SRAM | 1 Mbit dual-ported - supports concurrent core and DMA access for low-latency audio buffering without bus contention |
| On-Chip ROM | 3 Mbit mask-programmable - stores preconfigured audio decoders (Dolby Digital, DTS, MPEG2 AAC LC) with no external boot dependency |
| Serial Ports (SPORTs) | 4 full-duplex - provides up to 16 audio channels via TDM/I²S modes, sufficient for 5.1/7.1 surround input/output routing |
| Digital Application Interface | Includes IDP + PCGs + SRU - allows flexible interconnection of clock sources, audio inputs, and peripherals without hardware redesign |
| Package | 136-ball BGA (12 mm × 12 mm, 0.8 mm pitch) - matches industry-standard layout for compact AV receiver PCBs with thermal pad grounding |
| Power Supplies | VDDINT = 1.2 V, VDDEXT = 3.3 V, AVDD = 1.2 V - requires dedicated analog filtering per Figure 2 to stabilize PLL clock generation |
Pinout & Package
ADSP-21261SKBCZ150 uses a 136-ball plastic ball grid array (PBGA) package with exposed thermal pad, compliant with JEDEC MO-220VBGA. Pinout is defined in Rev. G datasheet Section "136-Ball BGA Pin Configurations" (Page 40), with balls arranged in 12×12 array plus 4 corner dummy balls.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | External reference clock input | Accepts 1–50 MHz crystal or oscillator; feeds on-chip PLL to generate 150 MHz core clock |
| BOOT_CFG[1:0] | Boot mode configuration pins | Determines boot source: parallel port EPROM, SPI master/slave, or internal ROM - sets initial execution vector |
| DAI_Px (x=0–19) | Digital application interface I/O | Configurable as I²S data/clock/frame sync, PCG outputs, flag I/O, or timer signals via SRU routing |
| SPORT0–3 | Synchronous serial port interfaces | Each provides Tx/Rx pair with independent DMA channels; supports left-justified, I²S, and TDM protocols |
| JTAG_TCK/TMS/TDI/TDO | IEEE 1149.1 test access port | Enables full-speed emulation, memory/register inspection, and non-intrusive real-time debugging |
| AVDD/AVSS | Analog power supply pins | Supply 1.2 V to on-chip PLL; require local RC filter (100 nF + 10 nF + 1 nF) per Figure 2 to minimize jitter |
Key Features
| Feature | Design Value |
|---|---|
| SIMD dual-processing engine | PEX + PEY execute identical instructions on independent data streams - accelerates FIR/IIR filtering and matrix operations by 2× vs SISD mode |
| ROM-based security | Prevents unauthorized code readout and disables JTAG access unless correct 64-bit key is scanned - protects proprietary audio algorithms |
| Dual-ported memory architecture | Separate PM/DM buses allow simultaneous instruction fetch + dual data transfers per cycle - eliminates memory bottlenecks in real-time audio pipelines |
| Flexible digital application interface (DAI) | SRU-configurable signal routing enables dynamic reassignment of DAI pins between clock gen, audio I/O, and control functions - reduces need for external glue logic |
| Hardware circular buffer support | DAG1/DAG2 manage up to 32 independent circular buffers with automatic wraparound - simplifies delay-line implementation for reverb and echo effects |
Applications
| Home Theater AV Receiver | Digital Mixing Console |
|---|---|
Use Scenario: Decoding and postprocessing multichannel audio streams (Dolby Digital, DTS) while applying room correction and speaker management in real time. IC Role / Device Role / Timing Role: Primary audio DSP executing ROM-resident decoders and user-loaded FIR filters; synchronizes all audio paths using PCGs and SRU-routed clocks. Use Value: Eliminates need for external decoder ICs and reduces BOM cost by integrating 3 Mbit of certified audio algorithms directly into silicon. | Use Scenario: Real-time channel processing (EQ, dynamics, delay) across 32+ input channels in live sound reinforcement systems. IC Role / Device Role / Timing Role: Core signal processor handling sample-rate conversion, mixing, and effects rendering; uses SPORTs and IDP for high-bandwidth I/O aggregation. Use Value: Dual-ported SRAM enables concurrent DMA streaming and computation - ensures sub-1 ms latency for critical monitor mixes. |
| Professional Audio DSP Module | Automotive Infotainment Head Unit |
Use Scenario: Standalone audio processing module for studio monitoring, supporting customizable EQ, crossover, and loudspeaker management. IC Role / Device Role / Timing Role: Main compute engine running VST/AAX-compatible plugins; leverages instruction cache for deterministic loop execution in filter banks. Use Value: 48-bit instruction word enables parallel multiply-add-subtract in single cycle - improves efficiency of complex biquad cascades and FFT-based analyzers. | Use Scenario: In-vehicle audio system performing Bluetooth A2DP decoding, voice prompt synthesis, and multi-zone audio distribution. IC Role / Device Role / Timing Role: Audio subsystem controller managing multiple codecs, amplifiers, and CAN bus communication via GPIO flags and timers. Use Value: ROM security prevents firmware tampering; 136-ball BGA footprint allows compact placement near audio codec ICs on dense automotive PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-21262KBCZ150 | 2 Mbit SRAM + 4 Mbit ROM + 6 SPORTs - higher memory and I/O count | Supports more complex decoder combinations (e.g., WMA-PRO 7.1) and larger TDM channel counts | Select when >4 serial ports or >1 Mbit SRAM required for multi-algorithm concurrent execution |
| ADSP-21364KSZ10B | 266 MHz core, 2 Mbit SRAM, 4 Mbit ROM, enhanced DAI - newer SHARC generation with higher MFLOPS | Offers backward-compatible instruction set but adds improved cache and faster PCGs for ultra-low-latency audio | Choose for new designs requiring >1000 MFLOPS or advanced features like hardware-accelerated FFT |
Compared with ADSP-21261SKBCZ150, ADSP-21262KBCZ150 expands memory and serial I/O for richer decoder support, while ADSP-21364KSZ10B delivers higher computational throughput and architectural enhancements - both require PCB layout changes due to different BGA footprints and power delivery requirements.
Availability
ADSP-21261SKBCZ150 is available at Aetrix Electronics and suitable for home theater AV receivers, professional audio DSP modules, and automotive infotainment head units requiring stable component supply and long-term industrial lifecycle support.
Supply support for ADSP-21261SKBCZ150 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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADSP-2126x SHARC family was designed specifically for high-fidelity, multichannel audio processing in cost-sensitive consumer and professional systems, emphasizing ROM-integrated decoder algorithms and low-latency real-time signal flow.
FAQ
What is the maximum supported serial port data rate for ADSP-21261SKBCZ150?
The ADSP-21261SKBCZ150 serial ports operate at up to one-quarter of the core clock rate. With its 150 MHz core, each SPORT supports a maximum data rate of 37.5 Mbits/sec. This enables full-duplex transmission of 16-bit stereo audio at 96 kHz across four channels per port in TDM mode, meeting bandwidth requirements for high-resolution multichannel audio transport.
Does ADSP-21261SKBCZ150 include hardware support for audio decoder algorithms?
Yes, ADSP-21261SKBCZ150 contains 3 Mbit of mask-programmable ROM preloaded with certified multichannel audio decoders including Dolby Digital, DTS, MPEG2 AAC LC, and Dolby Pro Logic II. These algorithms execute directly from ROM without external memory access, reducing system latency and eliminating licensing overhead for standard broadcast audio formats.
What package type and thermal characteristics apply to ADSP-21261SKBCZ150?
ADSP-21261SKBCZ150 uses a 136-ball PBGA package (12 mm × 12 mm, 0.8 mm pitch) with exposed thermal pad. Its thermal resistance θJA is 29.5°C/W under JEDEC JESD51-7 conditions. The device requires proper thermal vias under the pad and adherence to Analog Devices' recommended analog power filtering (Figure 2) to maintain PLL stability and prevent thermal throttling during sustained 900 MFLOPS operation.
How does the ROM security feature function on ADSP-21261SKBCZ150?
The ADSP-21261SKBCZ150 ROM security feature prevents unauthorized readout of internal code and disables JTAG access unless a unique 64-bit customer key is scanned via the TDI pin. When enabled, the device boots exclusively from internal ROM/SRAM and ignores external boot sources. This protects proprietary audio algorithms from reverse engineering and ensures secure firmware deployment in commercial AV products.
Can ADSP-21261SKBCZ150 be used in pin-compatible designs with other SHARC processors?
No, ADSP-21261SKBCZ150 is not pin-compatible with other SHARC processors. Its 136-ball BGA footprint differs from the 144-lead LQFP used by ADSP-21262 and ADSP-21266 variants, and from the 256-ball BGA of ADSP-2136x devices. While instruction-set compatible, mechanical and power delivery differences require board-level redesign for substitution - refer to Package Information (Page 15) and Outline Dimensions (Page 43) for exact land pattern requirements.
ADSP-21261SKBCZ150 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SHARC®
- Package/Case:
- 136-LFBGA, CSPBGA
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Floating Point
- Interface:
- DAI, SPI
- Clock Rate:
- 150MHz
- Non-Volatile Memory:
- ROM (384kB)
- On-Chip RAM:
- 128kB
- 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:
- 136-CSPBGA (12x12)
ADSP-21261SKBCZ150 FAQ
1.How can I place an order for ADSP-21261SKBCZ150 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-21261SKBCZ150 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-21261SKBCZ150 reliable?
The price and inventory of ADSP-21261SKBCZ150 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-21261SKBCZ150 is usually 5 days.
3.What payment methods are accepted for ADSP-21261SKBCZ150?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-21261SKBCZ150 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-21261SKBCZ150?
ADSP-21261SKBCZ150 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-21261SKBCZ150 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-21261SKBCZ150?
For technical support, including ADSP-21261SKBCZ150 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-21261SKBCZ150 requirements.
6.How does Aetrix verify that ADSP-21261SKBCZ150 is sourced from the original manufacturer or authorized distributors?
All ADSP-21261SKBCZ150 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-21261SKBCZ150 meets industry standards.
7.What is the process for return or replacement of ADSP-21261SKBCZ150?
All ADSP-21261SKBCZ150 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-21261SKBCZ150, 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-21261SKBCZ150 part is unused and in its original packaging.
Return procedure for ADSP-21261SKBCZ150:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADSP-21261SKBCZ150 Tags
-
TMS320C5535AZAY10
Texas Instruments
-
TMS320VC5501PGF300
Texas Instruments
-
ADSP-BF592KCPZ
Analog Devices Inc.
-
ADAU1463WBCPZ150
Analog Devices Inc.
-
TMS320VC5402PGE100
Texas Instruments
-
ADAU1701JSTZ-RL
Analog Devices Inc.
-
ADAU1701JSTZ
Analog Devices Inc.
-
TMS320VC5502PGF300
Texas Instruments
-
ADAU1462WBCPZ300RL
Analog Devices Inc.
-
ADAU1452KCPZRL
Analog Devices Inc.
-
ADAU1452WBCPZ-RL
Analog Devices Inc.
-
TMS320C6747DZKB3
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
