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Analog Devices Inc. ADSP-2115KS-100
- Part No.:
- ADSP-2115KS-100
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 80-BQFP
- Datasheet:
-
ADSP-2115KS-100.pdf
- Description:
- IC DSP CONTROLLER 16BIT 80PQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,922
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Product details
Overview
ADSP-2115KS-100 from Analog Devices is a 16-bit fixed-point DSP microprocessor with 1K × 16-bit data RAM, 1K × 16-bit program RAM, dual serial ports (SPORT0 and SPORT1), 25 MHz operation (40 ns instruction cycle), and no host interface port. It executes single-cycle instructions using an enhanced Harvard architecture with independent ALU, MAC, and shifter units, and is used in real-time audio processing, telecom channel banks, and industrial motor control systems.
For engineers reviewing the ADSP-2115KS-100 datasheet, ADSP-2115KS-100 pinout, ADSP-2115KS-100 application, or ADSP-2115KS-100 equivalent, key selection considerations include on-chip memory size, serial port count and multichannel capability, interrupt latency, boot source configuration (external EPROM), and compatibility with ADSP-2100 Family development tools including EZ-Kit Lite and ADSP-2100 Software Development Tools.
Technical Context
The ADSP-2115KS-100 implements a three-bus enhanced Harvard architecture: separate program and dual data buses enable simultaneous instruction fetch, dual operand access, and result writeback in one cycle. Its dual data address generators support modulo and bit-reverse addressing for efficient FFT and circular buffer operations.
It features zero-overhead looping via hardware loop counters and stack, automatic booting from byte-wide external EPROM, double-buffered serial ports with A-law/μ-law companding, and three edge- or level-sensitive interrupts (IRQ0–IRQ2) with vectored priority-based servicing. No host interface port is present-distinguishing it from ADSP-2111.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Enhanced Harvard: independent instruction bus + dual data buses for true parallel fetch/execute/data move |
| Instruction Rate | 25 MIPS at 25 MHz (40 ns cycle); all instructions execute in single cycle including multiply-accumulate |
| On-Chip Memory | 1K × 16-bit data RAM + 1K × 16-bit program RAM; supports simultaneous program/data access per cycle |
| Serial Interfaces | Dual synchronous serial ports (SPORT0 with multichannel TDM; SPORT1 with flag I/O alternate mode) |
| Interrupt System | Three external IRQ pins (configurable edge/level); vectored priority scheme with 7-level status stack |
| Boot Method | Automatic byte-wide EPROM boot with 3-wait-state default; supports multiple programs selectable via BMODE logic |
| Power Supply | 5 V ± 10%; CMOS process enables low-power IDLE instruction for reduced active current |
Pinout & Package
ADSP-2115KS-100 is packaged in an 80-lead TQFP (Thin Quad Flat Package) with 0.5 mm pitch, thermally enhanced for industrial temperature operation (–40°C to +85°C). Pinout conforms to ADSP-21xx family standard layout for 80-lead PQFP/TQFP variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | Clock Input | Accepts TTL-compatible external clock or crystal; drives internal PLL-free timing system |
| RESET | Master Reset | Active-low asynchronous reset; initiates boot sequence and clears status registers |
| IRQ0, IRQ1, IRQ2 | External Interrupt Inputs | Configurable as level- or edge-sensitive; IRQ0/IRQ1 share pins with SPORT1 DR/DT in alternate mode |
| SPORT0: SCLK0, RFS0, TFS0, DR0, DT0 | Serial Port 0 Interface | Supports 24-/32-channel TDM framing; RFS0/TFS0 independently programmable for transmit/receive sync |
| SPORT1: SCLK1, RFS1, TFS1, DR1, DT1 | Serial Port 1 Interface | Double-buffered; DR1/DT1 pins configurable as general-purpose flag inputs/outputs (FI/FO) |
| BMS, DMS, PMS | Memory Space Select | Control external bus multiplexing: indicate active use of boot, data, or program memory space |
| BR, BG | Bus Request/Grant | Enable external DMA masters to seize external address/data buses while ADSP-2115KS-100 continues internal execution |
Key Features
| Feature | Design Value |
|---|---|
| Zero-overhead looping | Hardware loop counter and stack eliminate branch penalty; enables deterministic real-time FIR/IIR execution |
| Dual data address generators (DAGs) | Each maintains four pointer registers with modulo/rotate addressing; essential for FFT, convolution, and buffer management |
| Companding hardware | Integrated A-law and μ-law encoding/decoding per CCITT G.711; offloads CPU in voice codec applications |
| Autobuffering serial transfers | Single-cycle overhead per word during full-buffer transfers; reduces ISR burden in high-throughput streaming |
| Programmable wait states | Configurable 0–7 wait states per memory space; enables direct interface to slow EPROM, SRAM, or peripherals |
Applications
| Voice Codec System | Industrial Motor Controller |
|---|---|
Use Scenario: Real-time G.711-compliant voice encoding/decoding in PBX line cards with echo cancellation. IC Role / Device Role / Timing Role: Primary signal processor executing adaptive filter, companding, and frame buffering; timing synchronized to T1/E1 frame clocks via SPORT0. Use Value: On-chip companding and zero-overhead loops reduce external component count and ensure sub-125 µs encode/decode latency. |
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase AC induction motors in HVAC blowers. IC Role / Device Role / Timing Role: Real-time PWM generation, Clarke/Park transforms, and PI regulation; SPORT1 interfaces to isolated ADC feedback channels. Use Value: Dual DAGs enable concurrent sampling buffer management and control law computation without DMA overhead. |
| Telecom Channel Bank | Audio Effects Processor |
Use Scenario: 24-channel TDM aggregation/distribution in digital loop carrier (DLC) remote terminals. IC Role / Device Role / Timing Role: Multichannel serial interface via SPORT0; handles time-slot assignment, CAS signaling, and jitter buffering. Use Value: SPORT0's native 24-word TDM mode eliminates external framing logic and reduces PCB routing complexity. |
Use Scenario: Low-latency reverb, chorus, and equalization in professional stage mixers with analog I/O. IC Role / Device Role / Timing Role: Audio stream coprocessor; receives I²S-like data via SPORT0/SPORT1, applies FIR filters, outputs processed samples. Use Value: 25 MIPS throughput sustains >32 biquad sections at 48 kHz sample rate with headroom for dynamic parameter updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-point DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-2101KS-100 | Same core, 2K × 16-bit program RAM + 1K × 16-bit data RAM; 68-pin PGA package only | Larger program memory supports more complex algorithms; lacks 80-lead TQFP packaging for high-density layouts | Select when larger on-chip program storage is required and PGA footprint is acceptable. |
| ADSP-2111KS-100 | Includes 16-bit host interface port (HIP), 2K × 16-bit program RAM, same 1K × 16-bit data RAM | Enables host-controlled boot and runtime parameter loading; adds HIP interrupt vectors and dual-port register set | Select when host processor coordination (e.g., 68000 or 80C51) is required for system-level control or firmware updates. |
Compared with ADSP-2115KS-100, ADSP-2101KS-100 offers greater program memory but limits board-level miniaturization, while ADSP-2111KS-100 trades serial port flexibility for host integration-neither is pin-compatible, requiring PCB redesign for substitution.
Availability
ADSP-2115KS-100 is available at Aetrix Electronics and suitable for industrial motor control, telecom channel banks, voice codec systems, and audio effects processing requiring stable component supply across extended lifecycle deployments.
Supply support for ADSP-2115KS-100 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 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-2100 Family-including ADSP-2115KS-100-is designed for cost-sensitive, real-time embedded DSP applications where deterministic low-latency execution, on-chip memory efficiency, and serial I/O flexibility are critical.
FAQ
What is the maximum operating frequency of the ADSP-2115KS-100?
The ADSP-2115KS-100 operates at a maximum clock frequency of 25 MHz, delivering a 40 ns instruction cycle time and 25 MIPS performance. This speed grade is confirmed in Table I of the ADSP-2100 Family datasheet and applies specifically to the KS-100 speed variant. The device achieves full instruction throughput without pipeline stalls due to its single-cycle execution architecture.
Does the ADSP-2115KS-100 include a host interface port (HIP)?
No, the ADSP-2115KS-100 does not include a host interface port. The HIP is exclusive to the ADSP-2111 variant within the ADSP-2100 Family. ADSP-2115KS-100 relies solely on its dual serial ports (SPORT0 and SPORT1), external memory interface, and interrupt lines for system communication-making it suitable for standalone DSP applications without host supervision.
What package type is used for the ADSP-2115KS-100?
The ADSP-2115KS-100 is supplied in an 80-lead TQFP (Thin Quad Flat Package) with 0.5 mm lead pitch, as specified in the "PIN CONFIGURATIONS" section of the ADSP-2100 Family datasheet. This package replaces the 80-lead PQFP option for the ADSP-2115 and is optimized for thermal performance in industrial temperature ranges (–40°C to +85°C).
How does the ADSP-2115KS-100 boot its program memory?
The ADSP-2115KS-100 supports automatic booting from byte-wide external EPROM via its data bus. Upon RESET, it generates three default wait states and reads boot code sequentially from external memory starting at address 0x0000. The BMODE pin selects between EPROM boot and alternative configurations, and the boot loader copies instructions into on-chip program RAM before execution begins.
Can SPORT0 and SPORT1 on the ADSP-2115KS-100 operate simultaneously?
Yes, SPORT0 and SPORT1 on the ADSP-2115KS-100 operate independently and concurrently. Each port has dedicated clock, frame sync, data receive, and data transmit signals, and both support double-buffered operation, hardware companding, and programmable word lengths (3–16 bits). Their autonomous operation enables full-duplex multi-protocol interfacing-for example, SPORT0 handling TDM voice channels while SPORT1 manages sensor data streams.
ADSP-2115KS-100 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- ADSP-21xx
- Package/Case:
- 80-BQFP
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Fixed Point
- Interface:
- Synchronous Serial Port (SSP)
- Clock Rate:
- 25MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 3kB
- Voltage - I/O:
- 5.00V
- Voltage - Core:
- 5.00V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 80-MQFP (14x14)
ADSP-2115KS-100 FAQ
1.How can I place an order for ADSP-2115KS-100 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2115KS-100 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-2115KS-100 reliable?
The price and inventory of ADSP-2115KS-100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2115KS-100 is usually 5 days.
3.What payment methods are accepted for ADSP-2115KS-100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2115KS-100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2115KS-100?
ADSP-2115KS-100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2115KS-100 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-2115KS-100?
For technical support, including ADSP-2115KS-100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2115KS-100 requirements.
6.How does Aetrix verify that ADSP-2115KS-100 is sourced from the original manufacturer or authorized distributors?
All ADSP-2115KS-100 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-2115KS-100 meets industry standards.
7.What is the process for return or replacement of ADSP-2115KS-100?
All ADSP-2115KS-100 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2115KS-100, 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-2115KS-100 part is unused and in its original packaging.
Return procedure for ADSP-2115KS-100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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