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Analog Devices Inc. ADSP-2101KS-100
- Part No.:
- ADSP-2101KS-100
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 80-BQFP
- Datasheet:
-
ADSP-2101KS-100.pdf
- Description:
- 16-BIT DIGITAL SIGNAL PROCESSOR
- Quantity:
- Payment:
- Shipping:
Inventory:3,243
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Product details
Overview
ADSP-2101KS-100 from Analog Devices is a 16-bit fixed-point DSP microprocessor with 2K words of on-chip program RAM, 1K words of on-chip data RAM, and dual serial ports (SPORT0 and SPORT1). It executes instructions at 16.67 MHz (60 ns cycle time), supports zero-overhead looping, hardware companding (A-law/µ-law), and operates from a single 5 V supply. It is used in real-time audio processing systems requiring deterministic low-latency signal flow.
For engineers reviewing the ADSP-2101KS-100 datasheet, ADSP-2101KS-100 pinout, ADSP-2101KS-100 application, or ADSP-2101KS-100 equivalent, key selection criteria include instruction cycle time, on-chip memory size, serial port count and framing flexibility, interrupt latency, and PGA package compatibility for legacy industrial control designs.
Technical Context
The ADSP-2101KS-100 implements an enhanced Harvard architecture with three independent internal buses: Program Memory Address (PMA), Program Memory Data (PMD), and Data Memory Data (DMD), enabling simultaneous instruction fetch and dual operand access. Its ALU, multiplier/accumulator (MAC), and shifter operate in parallel with single-cycle instruction execution.
It features two dedicated data address generators (DAGs) supporting modulo and bit-reverse addressing for circular buffers, and a programmable interval timer with 16-bit TCOUNT/TPERIOD registers. Booting is supported from byte-wide external EPROM via automatic 3-wait-state generation after reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Enhanced Harvard: separate program/data memory spaces with three-bus performance (PMA/PMD/DMD) |
| Instruction Rate | 16.67 MHz / 60 ns cycle time - enables deterministic real-time loop execution without pipeline stalls |
| On-Chip Memory | 2K × 16-bit program RAM + 1K × 16-bit data RAM - eliminates need for external instruction memory in compact embedded DSP designs |
| Serial Interfaces | Dual synchronous serial ports (SPORT0 multichannel, SPORT1 bidirectional) with hardware A-law/µ-law companding per CCITT G.711 |
| Interrupt System | Three external IRQ pins (IRQ0–IRQ2), level/edge-selectable; vectored priority-based ISR with 7-level status stack |
| Supply Voltage | 5 V ± 5% - compatible with legacy TTL/CMOS system rails and avoids mixed-voltage interface complexity |
| Operating Temperature | 0°C to +70°C (Commercial K-grade) - validated for non-extended-environment industrial instrumentation and telecom line cards |
Pinout & Package
ADSP-2101KS-100 is housed in a 68-pin Pin Grid Array (PGA) package with 0.1-inch pin spacing and ceramic substrate. The package supports through-hole mounting and provides full signal access to all internal buses, peripherals, and control lines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | Clock Input | Accepts TTL-compatible external clock or crystal oscillator input; drives internal PLL-free timing generator |
| RESET | Master Reset Input | Active-low asynchronous reset; initiates boot sequence and clears all registers and memory pointers |
| IRQ0, IRQ1, IRQ2 | External Interrupt Inputs | Configurable as level- or edge-sensitive; IRQ2 is dedicated, IRQ0/IRQ1 share pins with SPORT1 signals |
| SCLK0, RFS0, TFS0, DR0, DT0 | SPORT0 Interface Signals | Support multichannel TDM (24/32-word frames); RFS0/TFS0 can be internally generated or externally synchronized |
| SCLK1, RFS1, TFS1, DR1, DT1 | SPORT1 Interface Signals | Bidirectional double-buffered port; DR1/DT1 pins optionally configurable as general-purpose flag I/O (FI/FO) |
| BMS, DMS, PMS | Memory Space Select Outputs | Decode external bus cycles into Program/Data/Boot memory space; enable glueless interfacing to multiple memory banks |
| BR, BG | Bus Request/Grant | Allow external DMA controllers to seize external address/data buses while ADSP-2101KS-100 continues executing from on-chip memory |
Key Features
| Feature | Design Value |
|---|---|
| Zero-overhead looping | Hardware loop counter and stack eliminate branch penalties - critical for tight FIR/IIR filter kernels |
| Dual DAGs with modulo addressing | Enables concurrent circular buffer management for ping-pong FFT buffers and real-time sample streaming |
| Hardware companding | A-law/µ-law encoding/decoding performed in serial port logic - offloads CPU and ensures telephony-standard audio fidelity |
| Automatic EPROM boot | Internal boot controller loads program memory from byte-wide EPROM without external logic or firmware intervention |
| Low-power IDLE instruction | Halts core clocks while preserving register state and memory contents - reduces active power during inter-frame silence |
Applications
| Telecom Line Card Processing | Digital Audio Effects Engine |
|---|---|
Use Scenario: Real-time echo cancellation and DTMF detection in PSTN access gateways. IC Role / Device Role / Timing Role: Primary signal processor executing adaptive LMS algorithms and tone generation with sub-100 µs latency. Use Value: On-chip 2K program RAM stores optimized assembly kernels; dual SPORTs handle simultaneous upstream/downstream voice streams. |
Use Scenario: Multi-effect pedal for guitar with reverb, delay, and distortion in compact form factor. IC Role / Device Role / Timing Role: Standalone DSP engine managing sample-rate conversion, coefficient updates, and serial audio I/O. Use Value: Hardware companding ensures clean analog-to-digital interface; zero-overhead loops maintain consistent 48 kHz audio frame timing. |
| Industrial Motor Control Feedback | Medical Ultrasound Beamforming |
Use Scenario: Closed-loop servo control using encoder feedback and PWM generation in CNC drive modules. IC Role / Device Role / Timing Role: Real-time position/velocity estimator performing QEI decoding and PID computation per 50 µs control cycle. Use Value: Dual DAGs manage circular buffers for encoder pulse history; 16.67 MHz rate meets 20 kHz servo bandwidth requirements. |
Use Scenario: Portable ultrasound probe with digital beam synthesis and envelope detection. IC Role / Device Role / Timing Role: Front-end DSP handling RF sample buffering, FIR filtering, and log-compression prior to display processing. Use Value: 1K data RAM accommodates 512-sample channel buffers; SPORT0 multichannel mode interfaces directly to ADC array outputs. |
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-133 | Higher speed grade: 13.0 MHz (76.9 ns) instruction cycle; identical memory map and pinout | Lower maximum throughput for compute-intensive FIR filters; suitable where 16.67 MHz headroom is unnecessary | Select when system clock constraints or thermal limits require reduced operating frequency without changing PCB layout |
| ADSP-2101KS-200 | Higher speed grade: 20.0 MHz (50 ns) instruction cycle; same 68-pin PGA package and memory configuration | Enables tighter control loop timing and higher audio sample rates (e.g., 96 kHz oversampling) | Choose for new designs targeting improved real-time margin; verify external memory timing compatibility with faster bus cycles |
Compared with ADSP-2101KS-100, the -133 variant trades 2.3 MIPS for lower power and relaxed timing margins, while the -200 variant delivers 3.3 additional MIPS at the cost of increased dynamic power and stricter board-level signal integrity requirements.
Availability
ADSP-2101KS-100 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motor control, digital audio equipment, and medical signal processing requiring stable component supply across extended production lifecycles.
Supply support for ADSP-2101KS-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 leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and real-time control.
The ADSP-2100 Family was designed specifically for cost-sensitive, low-latency embedded DSP applications including voiceband communications, audio effects, and industrial feedback control - prioritizing deterministic execution, on-chip memory efficiency, and minimal external support circuitry.
FAQ
What is the maximum clock frequency supported by ADSP-2101KS-100?
The ADSP-2101KS-100 is rated for a maximum instruction rate of 16.67 MHz, corresponding to a 60 ns instruction cycle time. This specification is guaranteed across the commercial temperature range (0°C to +70°C) and 5 V ±5% supply. Exceeding this frequency may result in timing violations, particularly in external memory interface operations and serial port sampling windows.
Does ADSP-2101KS-100 include a host interface port (HIP)?
No, the ADSP-2101KS-100 does not include a host interface port. The HIP is exclusive to the ADSP-2111 variant within the ADSP-2100 Family. ADSP-2101KS-100 relies on its dual serial ports (SPORT0 and SPORT1) and external memory-mapped I/O for host communication, requiring external glue logic if interfacing with a microcontroller or FPGA.
Can ADSP-2101KS-100 boot directly from external EPROM without external logic?
Yes, ADSP-2101KS-100 supports automatic booting from byte-wide external EPROM. After RESET, it generates three wait states and sequentially reads 16-bit instruction words from EPROM addresses starting at 0x0000, storing them into on-chip program RAM. No external address latching or boot ROM decoding logic is required.
What serial protocol standards does ADSP-2101KS-100 support natively?
ADSP-2101KS-100 supports CCITT G.711 A-law and µ-law companding in hardware on both SPORT0 and SPORT1. It also supports frame-synchronized and frameless TDM modes, including 24- and 32-word multichannel configurations on SPORT0 - making it suitable for T1/E1 line interfaces and multi-processor time-division networks.
Is the pinout of ADSP-2101KS-100 compatible with other ADSP-2100 Family members in 68-pin PGA?
Yes, ADSP-2101KS-100 shares identical pinout and signal definitions with ADSP-2101KS-133, ADSP-2101KS-200, and ADSP-2101KS-250 in the 68-pin PGA package. This allows drop-in replacement across speed grades without PCB revision, provided external timing constraints (e.g., memory access setup/hold) are verified for the selected grade.
ADSP-2101KS-100 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 80-BQFP
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Fixed Point
- Interface:
- Host Interface, Serial Port
- 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 (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 80-MQFP (14x14)
ADSP-2101KS-100 FAQ
1.How can I place an order for ADSP-2101KS-100 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2101KS-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-2101KS-100 reliable?
The price and inventory of ADSP-2101KS-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-2101KS-100 is usually 5 days.
3.What payment methods are accepted for ADSP-2101KS-100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2101KS-100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2101KS-100?
ADSP-2101KS-100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2101KS-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-2101KS-100?
For technical support, including ADSP-2101KS-100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2101KS-100 requirements.
6.How does Aetrix verify that ADSP-2101KS-100 is sourced from the original manufacturer or authorized distributors?
All ADSP-2101KS-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-2101KS-100 meets industry standards.
7.What is the process for return or replacement of ADSP-2101KS-100?
All ADSP-2101KS-100 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2101KS-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-2101KS-100 part is unused and in its original packaging.
Return procedure for ADSP-2101KS-100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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