ADSP-2115KP-55 - 24-Bit 13.824 MHz DSP | Analog Devices
料号： ADSP-2115KP-55 ✓ 量产中ADSP-2115KP-55 概述
A digital signal processor, or DSP, is a semiconductor architecture that executes filtering, convolution, modulation, and other math-intensive operations using dedicated computation units and data address generators. Within the processor hierarchy, the ADSP-2115 sits between general-purpose microprocessors and fixed-function signal-processing ICs, combining a programmable core with on-chip memory, timers, serial ports, and program-sequencing hardware.
Key characteristics include a 24-bit processing word, a 13.824 MHz instruction rate, and an operating temperature range of 0°C to 70°C. The processor uses a common ADSP-21xx core that integrates computation units, data address generators, and a program sequencer. On-chip program and data memory, a programmable timer, and one or two serial ports support compact embedded signal-processing designs.
The ADSP-2115KP-55 combines a general-purpose DSP core with dedicated peripherals, allowing sequential instruction execution and fast data movement without the overhead of a multi-cycle microcontroller architecture. Its 68-pin J-lead PLCC package is intended for surface-mount assembly and remains practical for legacy industrial, audio, communications, and control systems that were designed around the ADSP-2100 family.
Typical uses include audio decoding, digital filtering, modulation, speech processing, instrumentation, industrial control, and embedded communications. The processor is especially useful where predictable fixed-point arithmetic and deterministic program execution are more important than a large general-purpose software ecosystem.
When migrating a board, confirm the clock-speed grade, pin assignment, memory configuration, serial-port requirements, and external bus interface against the Analog Devices datasheet. The PLCC footprint simplifies mechanical compatibility, but software timing and initialization sequences must be reviewed whenever the processor clock changes.
This page consolidates the processor identity, package details, temperature limits, comparison parameters, and practical integration guidance. It also identifies same-brand speed-grade alternatives for legacy designs and explains which compatibility checks must be completed before any substitution is approved.
直接替换替代料： ADSP-2115KP-55 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ADSP-2115KP-55 （相同外形与封装尺寸）.
ADSP-2115KP-50
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ADSP-2115KP-40
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ADSP-2115KP-62
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ADSP-2115KP-66
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →ADSP-2115KP-80
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ADSP-2115KP-55 规格参数
| Product Type | 24-bit fixed-point digital signal processor |
| Processor Family | ADSP-2100 family |
| Clock Frequency | 13.824 MHz |
| Word Length | 24 bit |
| 封装 | 68-pin PLCC (24.23 mm x 24.23 mm) |
| Package Form | J-lead plastic leaded chip carrier |
| 安装类型 | Surface mount |
| 工作温度范围 | 0°C to 70°C |
| Core Architecture | ADSP-21xx common DSP core |
| Computation Units | Dedicated DSP computation units |
| Data Addressing | Dedicated data address generators |
| Program Sequencing | Dedicated program sequencer |
| Order Packaging | Bulk |
ADSP-2115KP-55 j-lead plastic leaded chip carrier 引脚配置指南
ADSP-2115KP-55（j-lead plastic leaded chip carrier 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： ADSP-2115KP-55.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ADSP-2115KP-55 适用于 6 应用s: Digital Audio Filtering, Industrial Control and Signal Conditioning, Communications Modulation and Filtering, Speech and Telephony Processing, Test and Measurement Instrumentation, Embedded Audio and Control Platform.
Digital Audio Filtering
The ADSP-2115KP-55 is suitable for digital audio filtering because its 24-bit arithmetic and 13.824 MHz instruction rate support real-time multiply-accumulate operations used in equalizers, crossover filters, and volume-control algorithms. The dedicated computation units reduce the overhead associated with general-purpose looping, while data address generators simplify coefficient and sample movement. Use the processor's serial interfaces to accept PCM data from a codec, then review cycle budgets for filter coefficients and sample rates. Firmware timing must be recalculated if a different clock-speed grade is used.
推荐
Industrial Control and Signal Conditioning
The ADSP-2115KP-55 fits industrial control and signal-conditioning duties that combine sampling, numeric filtering, and deterministic control logic. Its dedicated DSP computation units accelerate arithmetic associated with sensor compensation, limit processing, and closed-loop control, while its programmable timer supports periodic tasks. The 0°C to 70°C operating range suits indoor equipment, and the 68-pin PLCC package supports surface-mount assembly on legacy control boards. Confirm the supply voltage, external bus requirements, and timing in the Analog Devices datasheet before integrating it into a new controller.
推荐
Communications Modulation and Filtering
The ADSP-2115KP-55 can implement communications modulation, demodulation, channel filtering, and data framing in embedded equipment. Its 13.824 MHz clock and 24-bit fixed-point architecture are appropriate for legacy telecom designs that require efficient multiply-accumulate operations without a large general-purpose processor. Serial ports support transfers between the DSP and external codecs or network controllers, while on-chip memory reduces external bus activity. Validate carrier timing, baud-rate settings, and interrupt latency whenever the clock grade changes because these functions commonly depend on accurate cycle counts.
推荐
Speech and Telephony Processing
The ADSP-2115KP-55 supports speech and telephony systems built around efficient fixed-point algorithms such as gain control, filtering, echo-related processing, and voice-path conditioning. Its dedicated computation units and data address generators are well matched to sample-oriented workloads, while serial resources can connect to voice codecs or line-interface devices. The processor's 24-bit word length provides consistent arithmetic precision for legacy voice designs. Before deployment, measure algorithm execution time against the system frame rate and confirm the serial-interface timing required by the selected codec.
推荐
Test and Measurement Instrumentation
The ADSP-2115KP-55 can serve as the numeric engine in instrumentation that performs waveform conditioning, digital filtering, calibration, and fast measurement updates. The 24-bit arithmetic and 13.824 MHz clock provide a practical balance for legacy analyzers, transducers, and laboratory interfaces, while timers and serial ports support instrument control. Analog Devices lists the ADSP-2100 family for high-speed numeric processing, making the device suitable for deterministic measurement pipelines. Verify input bandwidth, converter timing, and acquisition-buffer requirements against the complete signal chain.
推荐
Embedded Audio and Control Platform
The ADSP-2115KP-55 is appropriate for embedded platforms that combine real-time audio processing with control functions in a single legacy architecture. Its program sequencer and data address generators support concurrent audio and supervisory tasks, while on-chip program and data memory can reduce external-memory traffic in compact systems. The surface-mount PLCC package is useful for repairing or extending established industrial and consumer-control designs. Design the clock, reset, memory configuration, and serial peripherals to match the ADSP-2115 datasheet, and confirm that the original software supports the intended operating mode.
推荐
推荐产品汇总
工程参考数据： ADSP-2115KP-55 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ADSP-2115KP-50 | ADSP-2115KP-40 | ADSP-2115KP-62 | ADSP-2115KP-66 | ADSP-2115KP-80 |
|---|---|---|---|---|---|---|
| Package | 68-pin PLCC (J-lead), surface mount | 68-pin PLCC (J-lead), surface mount | 68-pin PLCC (J-lead), surface mount | 68-pin PLCC (J-lead), surface mount | 68-pin PLCC (J-lead), surface mount | 68-pin PLCC (J-lead), surface mount |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Clock Frequency | 13.824 MHz | 11.424 MHz | 10.000 MHz | 12.800 MHz | 13.000 MHz | 16.000 MHz |
| Clock Difference vs Target | 13.824 MHz reference | -2.400 MHz (-17.4%) | -3.824 MHz (-27.7%) | -1.024 MHz (-7.4%) | -0.824 MHz (-6.0%) | +2.176 MHz (+15.7%) |
| Processor Architecture | ADSP-21xx common DSP core | ADSP-21xx common DSP core | ADSP-21xx common DSP core | ADSP-21xx common DSP core | ADSP-21xx common DSP core | ADSP-21xx common DSP core |
| Word Length | 24 bit | 24 bit | 24 bit | 24 bit | 24 bit | 24 bit |
| Mounting Type | Surface mount | Surface mount | Surface mount | Surface mount | Surface mount | Surface mount |
| Programmable Timer | Yes | Yes | Yes | Yes | Yes | Yes |
关键差异点
- Higher clock option than the ADSP-2115KP-40 grade （对比 ADSP-2115KP-40)
- Balanced clock margin relative to the ADSP-2115KP-62 grade （对比 ADSP-2115KP-62)
- Lower clock than the ADSP-2115KP-80 alternative （对比 ADSP-2115KP-80)
- Commercial-temperature grade with the same ADSP-21xx common core （对比 ADSP-2115KP-66)
设计说明
Do not treat a shared PLCC-68 footprint as proof that every ADSP-2115KP speed grade is automatically interchangeable. The ADSP-2115KP-55 runs at 13.824 MHz, so a lower-clock substitute changes instruction throughput, timer periods, serial-port rates, and interrupt-latency calculations. Review the clock-dependent initialization code, recalculate all divisors, and execute timing-critical firmware tests before releasing a substitution for production.
Assign PCB connections directly from the official Analog Devices pin-description table and land-pattern drawing. The J-lead PLCC footprint has a larger pitch and lead arrangement than current leadless DSP packages, so it must not be confused with QFN or LQFN land patterns. Preserve the orientation marker and inspect the assembled board for pin-1 alignment. Mechanical compatibility with another ADSP-2115KP grade does not replace the requirement to verify every electrical connection.
Keep clock, reset, and high-speed memory-bus routing compact and away from noisy switching nodes. Use the Analog Devices ADSP-2115 datasheet to determine which signals require controlled-impedance routing, grounding, or isolation. Where a codec or data converter sits close to the processor, place its grounding and decoupling strategy in accordance with both component datasheets. Validate clock jitter and edge quality at the DSP pins because arithmetic timing and serial timing can be affected by poor return paths.
Build the supply network from the exact operating-voltage and current conditions listed for the selected speed grade in the Analog Devices datasheet. Place local bulk and high-frequency decoupling at the power pins and keep return currents continuous beneath the device. Account for startup current and switching transients when sizing regulators and inductors. Since the exact supply requirements are not stated in the product listing, verify them directly in the manufacturer documentation before layout release.
合规信息
The 0°C to 70°C commercial operating range and 68-pin J-lead PLCC package are identified. Specific RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations require confirmation from the current Analog Devices product documentation or supplier declaration.
