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Analog Devices Inc. ADSP-2111KS-52
- Part No.:
- ADSP-2111KS-52
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 80-BQFP
- Datasheet:
-
ADSP-2111KS-52.pdf
- Description:
- 16-BIT DIGITAL SIGNAL PROCESSOR
- Quantity:
- Payment:
- Shipping:
Inventory:208
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Product details
Overview
ADSP-2111KS-52 from Analog Devices is a 16-bit fixed-point DSP microprocessor with on-chip 2K RAM program memory and 1K RAM data memory, featuring an integrated 16-bit host interface port (HIP), dual serial ports (SPORT0/SPORT1), and three edge- or level-sensitive interrupts. It executes instructions at 20 MHz (50 ns cycle time) and targets real-time embedded signal processing in host-coupled systems such as telecom line cards and industrial controllers.
For engineers reviewing the ADSP-2111KS-52 datasheet, ADSP-2111KS-52 pinout, ADSP-2111KS-52 application, or ADSP-2111KS-52 equivalent, key selection considerations include HIP timing compatibility with 68000/80C51 hosts, 100-pin PGA package constraints, 5 V supply operation, and boot-source selection via BMODE pin.
Technical Context
The ADSP-2111KS-52 implements an enhanced Harvard architecture with separate program and dual data buses, enabling simultaneous instruction fetch, dual operand access, and computation in one cycle. Its core includes ALU, multiplier/accumulator, and shifter units interconnected via the 16-bit R bus, supporting zero-overhead looping and bit-reverse addressing.
Host communication occurs through the asynchronous 16-bit HIP, configurable for 8-/16-bit data width, multiplexed or separate address/data buses, and independent read/write strobes. The HIP provides six mailbox registers (HDR0–HDR5), two status registers (HSR6/HSR7), and interrupt masking per register via HMASK.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Enhanced Harvard: 3-bus (PMA/PMD/DMA/DMD/R) enables concurrent instruction fetch + dual data moves + ALU/MAC/shifter operation per cycle. |
| Instruction Rate | 20 MHz / 50 ns cycle time: delivers deterministic real-time execution for control-loop and audio sampling applications. |
| On-Chip Memory | 2K × 16-bit program RAM + 1K × 16-bit data RAM: eliminates need for external boot ROM in many configurations. |
| Host Interface | 16-bit asynchronous HIP with 6 data registers + 2 status registers: supports memory-mapped access by 68000, 80C51, or ISA-bus hosts without glue logic. |
| Serial Interfaces | Dual SPORTs: SPORT0 supports multichannel TDM (24/32-word); SPORT1 supports companding (A-law/µ-law) and flag I/O reconfiguration. |
| Interrupt System | 3 external IRQ pins (edge/level configurable) + HIP write/read, timer, SPORT0/1 interrupts: 9-vector prioritized scheme with 9-level status stack for nested servicing. |
| Supply & Temp | 5 V ± 5% supply; commercial temperature grade (0°C to +70°C): suitable for non-ruggedized industrial and telecom equipment. |
Pinout & Package
ADSP-2111KS-52 is packaged in a 100-pin PGA (Pin Grid Array) with 14 × 14 mm body, 2.54 mm pitch, and ceramic substrate - optimized for high-density PCB layouts requiring thermal stability and low-inductance grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BMODE | Boot Mode Select | High = boot from host interface port; Low = boot from external EPROM; determines initial memory map configuration. |
| HSIZE | HIP Data Width | High = 16-bit host data bus; Low = 8-bit host data bus; configures HIP register access granularity. |
| HMD0, HMD1 | HIP Bus Protocol | Select strobe mode (separate R/W vs. RD/WR+DSTB) and bus topology (multiplexed vs. separate A/D); enables direct interface to 68000 or 80C51. |
| IRQ0–IRQ2 | External Interrupt Inputs | Programmable edge- or level-sensitive; IRQ2 dedicated, IRQ0/IRQ1 share pins with SPORT1 signals - requires pin-function conflict resolution. |
| HRD, HWR | HIP Read/Write Strobes | Active-low asynchronous controls; sampled internally to latch host data without wait-state insertion during full-speed DSP operation. |
| HD0–HD15 | HIP Data Bus | Bi-directional 16-bit path to HDR registers; driven by host during writes, tri-stated by ADSP-2111KS-52 during reads - no bus contention. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-overhead looping | Hardware loop counters and stack eliminate branch penalties - critical for FIR/IIR filter kernels and FFT butterflies. |
| Automatic HIP booting | Host processor loads opcodes into HIP; ADSP-2111KS-52 auto-transfers to internal program RAM - enables field firmware updates without EPROM replacement. |
| Dual DAGs with modulo addressing | Two independent data address generators support circular buffers for real-time streaming (e.g., audio sample buffers, motor control PWM tables). |
| Companding hardware | Integrated A-law/µ-law encoding/decoding in SPORT0/SPORT1 - removes need for external codec ICs in voice-band applications. |
| Asynchronous host interface | HIP operates independently of DSP clock - host can read/write registers while ADSP-2111KS-52 executes at 20 MHz without synchronization overhead. |
Applications
| Telecom Line Card Control | Industrial Motion Controller |
|---|---|
Use Scenario: Real-time DTMF detection, echo cancellation, and protocol bridging between PSTN and packet networks. IC Role / Device Role / Timing Role: Primary signal processor executing algorithmic tasks; HIP synchronizes call setup/control with host MCU. Use Value: On-chip 2K program RAM stores multiple codecs; SPORT0 handles TDM voice channels; HIP enables dynamic parameter loading from host. |
Use Scenario: Closed-loop servo control of multi-axis CNC machines using position feedback and PWM generation. IC Role / Device Role / Timing Role: Deterministic real-time executor of PID loops and trajectory planning; SPORT1 interfaces to encoder quadrature signals. Use Value: 50 ns instruction cycle ensures sub-50 µs control loop latency; dual DAGs manage circular buffer for motion profile interpolation. |
| Audio Signal Processing Module | Medical Ultrasound Beamformer |
Use Scenario: Multi-channel digital mixing, EQ, and effects processing in studio-grade audio interfaces. IC Role / Device Role / Timing Role: Fixed-point DSP engine handling sample-rate conversion and FIR filtering; SPORT0/SPORT1 route I²S/TDM streams. Use Value: Hardware companding reduces quantization noise in analog front-end paths; 1K data RAM buffers channelized audio frames. |
Use Scenario: Time-delay beamforming and envelope detection in portable ultrasound imaging systems. IC Role / Device Role / Timing Role: High-throughput correlator and filter bank processor; HIP transfers scan parameters from ARM host CPU. Use Value: 20 MHz throughput sustains >100 MOPS for delay-and-sum operations; on-chip memory avoids external SDRAM latency bottlenecks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DSP processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-2111KS-66 | 25 MHz / 40 ns instruction cycle; identical pinout, memory map, and HIP functionality. | Higher throughput for compute-intensive algorithms (e.g., adaptive filtering, spectral analysis) where 20 MHz is insufficient. | Select ADSP-2111KS-66 when system timing margins require ≥25 MIPS and board layout accommodates same 100-pin PGA footprint. |
| ADSP-2115KS-52 | No host interface port; 1K program RAM + 512-word data RAM; 80-pin PQFP package; otherwise identical architecture and instruction set. | Suitable for standalone DSP applications without host co-processing (e.g., sensor fusion, motor drive only). | Choose ADSP-2115KS-52 when HIP is unnecessary and space-constrained designs favor PQFP over PGA. |
Compared with ADSP-2111KS-52, the KS-66 variant delivers 25% higher instruction throughput without changing software or PCB layout, while the ADSP-2115KS-52 removes HIP capability and reduces memory to lower cost and size - both serve distinct architectural trade-offs in host-coupled vs. autonomous DSP roles.
Availability
ADSP-2111KS-52 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, medical imaging, and audio processing applications requiring stable component supply and long-term obsolescence management.
Supply support for ADSP-2111KS-52 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 instrumentation, communications, and industrial systems.
The ADSP-2100 Family - including ADSP-2111KS-52 - was engineered for real-time embedded signal processing in resource-constrained systems requiring deterministic timing, low-latency I/O, and host co-processor integration.
FAQ
What is the maximum operating frequency of the ADSP-2111KS-52?
The ADSP-2111KS-52 is rated for a maximum instruction rate of 20 MHz, corresponding to a 50 ns instruction cycle time. This speed grade is confirmed in the official Analog Devices datasheet section "SPECIFICATIONS (ADSP-2111)" and applies specifically to the KS-52 speed bin. Exceeding this frequency may result in timing violations and undefined behavior.
Does the ADSP-2111KS-52 support booting from external memory?
Yes, the ADSP-2111KS-52 supports booting from external byte-wide memory (e.g., EPROM) when the BMODE pin is held low at reset. It automatically generates three wait states to accommodate slower memories like 200 ns EPROMs. Booting from the host interface port is enabled when BMODE is high - both modes are mutually exclusive and defined by hardware pin state.
Can the ADSP-2111KS-52 operate with a 3.3 V supply?
No, the ADSP-2111KS-52 requires a nominal 5 V ± 5% supply voltage, as specified in Table I and the "Recommended Operating Conditions" section of the ADSP-2111 datasheet. It is not compatible with 3.3 V logic families without level translation, and no 3.3 V variant (e.g., ADSP-2103) exists for the ADSP-2111 product line.
How many serial ports does the ADSP-2111KS-52 include, and what are their capabilities?
The ADSP-2111KS-52 includes two synchronous serial ports: SPORT0 and SPORT1. SPORT0 supports multichannel TDM (24/32-word), frameless operation, and hardware companding (A-law/µ-law). SPORT1 offers identical companding and framing flexibility, plus optional reconfiguration as general-purpose flag I/O (FI/FO) or external interrupt inputs (IRQ0/IRQ1).
Is the ADSP-2111KS-52 pin-compatible with other ADSP-21xx processors?
The ADSP-2111KS-52 uses a 100-pin PGA package, which is unique within the ADSP-21xx family - other variants use 68-pin PGA, 68-pin PLCC, 80-pin PQFP, or 80-pin TQFP packages. No other ADSP-21xx part shares the same pin count or mechanical footprint, making it electrically and physically non-interchangeable without PCB redesign.
ADSP-2111KS-52 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:
- 13MHz
- 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-2111KS-52 FAQ
1.How can I place an order for ADSP-2111KS-52 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2111KS-52 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-2111KS-52 reliable?
The price and inventory of ADSP-2111KS-52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2111KS-52 is usually 5 days.
3.What payment methods are accepted for ADSP-2111KS-52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2111KS-52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2111KS-52?
ADSP-2111KS-52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2111KS-52 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-2111KS-52?
For technical support, including ADSP-2111KS-52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2111KS-52 requirements.
6.How does Aetrix verify that ADSP-2111KS-52 is sourced from the original manufacturer or authorized distributors?
All ADSP-2111KS-52 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-2111KS-52 meets industry standards.
7.What is the process for return or replacement of ADSP-2111KS-52?
All ADSP-2111KS-52 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2111KS-52, 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-2111KS-52 part is unused and in its original packaging.
Return procedure for ADSP-2111KS-52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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