ADSP-2115BP-66 - 16.67 MHz 16-Bit DSP | Analog Devices
N.º da peça: ADSP-2115BP-66 ✓ AtivoADSP-2115BP-66 Visão geral
A digital signal processor is a semiconductor designed to execute mathematical operations efficiently on continuously changing data. A DSP sits above general-purpose microprocessors in the processing hierarchy and below application-specific signal-chain systems. Its architecture can process multiple data paths in parallel, reducing the instruction overhead associated with complex filtering, modulation, transform, and control algorithms. The ADSP-2115BP-66 is intended for embedded industrial, communications, control, audio, and instrumentation applications where deterministic real-time execution is important.
The processor has a 16-bit data bus, a 16.67 MHz listed clock speed, and a single 5 V supply. Its 68-pin plastic leaded chip carrier package supports conventional through-hole board assembly and external memory interfaces. The ADSP-2100 family architecture combines computation units, dual data address generators, and a program sequencer, enabling parallel data movement and arithmetic. This combination is particularly useful for filter algorithms that require high sample throughput and predictable execution timing.
The fixed-point architecture is suitable for control loops, signal conditioning, modulation, demodulation, spectral processing, and embedded audio functions. Compared with a floating-point DSP, fixed-point arithmetic can reduce hardware complexity and processing cost when the system can use appropriately scaled integer arithmetic. Designers should preserve fractional precision with suitable word lengths and rounding strategy, particularly in accumulators and recursive filters.
Typical ADSP-2115BP-66 applications include industrial motor and process control, communications modem and speech processing, audio decoding, instrumentation, and embedded DSP subsystems. The external-memory capability and parallel internal data paths allow an application-specific system to balance throughput, program storage, and working-memory requirements. External memory timing and bus contention must be included in system-level timing analysis.
A critical PCB-design consideration is that this PLCC-68 device is not a leadless surface-mount package. The footprint requires adequate plated through-holes, solder-joint clearance, component orientation, and thermal-conduction planning for ceramic or leaded-chip-carrier construction. Confirm the exact pin assignment and package drawing in the manufacturer datasheet before releasing artwork.
This product page combines the manufacturer's processor-family information, package and operating details, application guidance, design notes, and a parameter comparison with the Blackfin ADSP-BF535PBB-300 to clarify selection and migration considerations.
Alternativas drop-in para ADSP-2115BP-66 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Nenhuma alternativa drop-in disponível para este produto.
Solicitar alternativasADSP-2115BP-66 Especificações
| Product Type | 16-bit fixed-point digital signal processor |
| Largura do barramento de dados | 16 bit |
| Listed Clock Speed | 16.67 MHz |
| Tensão de alimentação | 5 V |
| Package Type | Plastic PLCC-68 |
| Package Body Size | 24.2 mm x 24.2 mm |
| Contagem de pinos | 68 pins |
| Architecture | Enhanced Harvard architecture |
| Arithmetic Format | Fixed-point |
| Faixa de temperatura de operação | -40 C to +85 C |
| Processor Family | ADSP-2100 family |
| Program Sequencer | On-chip program sequencer |
| Data Address Generation | Dual on-chip data address generators |
| External Memory Interface | External memory interface |
| Tipo de montagem | Through-hole leaded chip carrier |
| Status RoHS | Compliant |
| Status do ciclo de vida | Active |
Guia de Configuração de Pinos do ADSP-2115BP-66 24.2 mm x 24.2 mm
Configuração de pinos para ADSP-2115BP-66 (pacote 24.2 mm x 24.2 mm). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para ADSP-2115BP-66.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
ADSP-2115BP-66 é adequado para 6 aplicaçãos: Industrial Motor Control, Digital Communications Modem, Audio Signal Processing, Process Measurement and Control, Speech and Communications Terminal, Industrial Instrumentation.
Industrial Motor Control
The ADSP-2115BP-66 fits industrial motor-control loops that depend on deterministic fixed-point execution, especially feedback algorithms combining sampled current and position data. Its 16-bit data bus, listed 16.67 MHz clock speed, and dual data address generators support parallel movement of control and status values. Place the processor beside the analog front end and external memory, then isolate high-current switching paths from the 5 V processor rail. Validate timing margins across temperature because fixed-point filter and control loops are sensitive to instruction-cycle variation, external-memory wait states, and interrupt latency.
Recomendado
Digital Communications Modem
The ADSP-2115BP-66 can implement communication modem functions that combine symbol processing, filtering, timing recovery, and data-buffer management. Its enhanced Harvard architecture uses separate program and data paths, while the ADSP-2100 family's computation units and address generators support sustained fixed-point workloads. Use external memory for frame buffers and keep the 68-pin PLCC footprint within the board's mechanical and thermal design constraints. Validate bus timing, interrupt latency, and numerical headroom because sustained filtering and equalization can reveal overflow or rounding errors not apparent in short functional tests.
Recomendado
Audio Signal Processing
The ADSP-2115BP-66 suits audio systems requiring real-time filtering, mixing, equalization, or speech processing with deterministic response. Its 16-bit fixed-point format aligns with many digitized audio paths, and the program's separate instruction and data paths allow samples to be processed while control code and buffer descriptors are accessed concurrently. Design the clock and memory system to sustain the required sample rate without missed deadlines. Include input clipping, accumulator overflow, and filter stability checks, and provide stable analog supplies to prevent noise from entering through the audio front end.
Recomendado
Process Measurement and Control
The ADSP-2115BP-66 is applicable to measurement systems that must convert sensor samples into filtered, calibrated process variables under real-time constraints. The 16-bit bus supports common fixed-point data widths, while the dual data address generators help overlap sample acquisition with processing and output updates. Interface external memory when acquisition records exceed on-chip storage, and reserve the 5 V rail for analog and digital isolation as required by the measurement architecture. Verify conversion timing, sensor bandwidth, anti-alias filtering, and processor scaling together to prevent a numerically correct result from representing an out-of-band signal.
Recomendado
Speech and Communications Terminal
The ADSP-2115BP-66 can support embedded speech or communications-terminal functions that require repeated filtering, interpolation, echo processing, or protocol handling. Its listed 16.67 MHz clock and parallel Harvard organization are useful for fixed-point algorithms with predictable instruction timing, while external memory provides room for program and voice-frame data. Ensure the board maintains clean supply and ground distribution because codec signals can couple processor switching activity into the audio path. Test worst-case memory contention and interrupt activity with the longest supported voice frames, then apply gain adjustment and overflow margins to the fixed-point implementation.
Recomendado
Industrial Instrumentation
The ADSP-2115BP-66 fits instrumentation requiring repeatable numeric processing, calibration tables, waveform analysis, or time-series filtering. Its fixed-point architecture supports efficient arithmetic, and the enhanced Harvard organization permits concurrent movement of sampled data and execution parameters. The listed -40 C to +85 C operating range is useful across many industrial installations, but enclosure heating can still push internal conditions beyond the expected range. Use the PLCC-68 footprint with suitable through-hole mechanical support and copper spreading, and separate sensitive analog sections from the processor's clock and digital-return paths.
Recomendado
Dados de referência de engenharia para ADSP-2115BP-66 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ADSP-BF535PBB-300 |
|---|---|---|
| Brand | Analog Devices | Analog Devices |
| Processor Family | ADSP-2100 family | Blackfin family |
| Arithmetic Type | Fixed-point | Fixed-point |
| Listed Interfaces | Host Interface | PCI, SPI, SSP, UART, USB |
| Lifecycle Status | Active | Obsolete |
Principais diferenciais
- Active ADSP-2100-family processor (vs ADSP-BF535PBB-300)
- Dedicated 16-bit external data bus (vs ADSP-BF535PBB-300)
- Simplified peripheral migration requirements (vs ADSP-BF535PBB-300)
Notas de projeto
Use the PLCC-68 footprint from the Analog Devices package drawing and preserve the package orientation mark. Because the processor has an external memory interface, route address and data lines with controlled impedance where required, avoid unnecessary stubs, and separate the 5 V supply return from sensitive analog returns. Confirm plated-hole tolerances, solder-joint clearance, component-body clearance, and adjacent-component height before releasing the board layout.
Follow the manufacturer datasheet for recommended input capacitance, supply tolerances, and bypass placement. Place the required bypass capacitors close to their associated power pins, keep the supply loop compact, and provide additional local filtering where clock or memory currents create measurable rail disturbance. Treat the 5 V rail as a dedicated processor rail rather than sharing it indiscriminately with motors, relays, or other switching loads.
The ADSP-2100 architecture can execute program and data transfers concurrently, so external-memory timing must be checked under realistic bus contention rather than only with isolated reads and writes. Analyze address setup, hold time, wait states, and interrupt-induced access patterns using the electrical characteristics in the manufacturer datasheet. If external devices add loading, re-evaluate signal levels and ringing before increasing processor clock frequency.
Do not migrate from the ADSP-2115BP-66 to the ADSP-BF535PBB-300 as a drop-in change. Although both are Analog Devices fixed-point processors, they use different families and the Blackfin comparison lists PCI, SPI, SSP, UART, and USB interfaces. Treat the migration as a board, clock, memory, peripheral, and software redesign, and reproduce numerical results with fixed-point models before production release.
Informações de conformidade
RoHS compliance is listed for ADSP-2115BP-66. No definitive REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statement was identified.
