DSPB56725CAF - 200MHz Dual-Core 24-bit Audio DSP | NXP
부품 번호: DSPB56725CAF ⚠ 최종 구매| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $17.2 | $172.00 |
| 100 | $15.85 | $1,585.00 |
| 500 | $14.4 | $7,200.00 |
| 1,000 | $13.1 | $13,100.00 |
DSPB56725CAF 개요
An audio DSP (Digital Signal Processor) is a specialized microprocessor architecture optimized for high-throughput numeric operations on streaming sample data. Unlike a general-purpose MCU, a DSP exposes single-cycle MAC units, hardware barrel shifters, and zero-overhead loops that make finite-impulse-response and infinite-impulse-response filtering, FFTs, and sample-rate conversion execute in deterministic cycles. In the system hierarchy, the audio DSP sits between analog front ends (ADCs, DACs, codecs) and the host application processor, offloading real-time mixing, equalization, dynamics, decoding, and effects so that the host CPU can focus on control-plane and connectivity tasks.
Key features of the DSPB56725CAF include 200 MHz core clock from an external crystal or oscillator, dual 24-bit DSP56300 cores, 112 kB on-chip RAM, and external non-volatile memory for program storage. The device exposes Host, I2C, SAI (Serial Audio Interface), and SPI peripherals, plus a dedicated I/O voltage domain that simplifies interfacing to 3.3 V logic. Hardware accelerators and a rich interrupt controller further reduce software overhead in real-time audio pipelines.
Architecturally, the DSPB56725CAF pairs two DSP56300 cores with shared memory and a high-bandwidth internal bus, allowing symmetric processing of left/right channels or asymmetric master/accelerator partitioning. Code compatibility with the legacy DSP56000 and DSP56300 families allows reuse of mature audio libraries and development toolchains, while pin compatibility with the DSP56721 simplifies migration between Symphony family members.
Typical applications include AV receivers, sound bars, multi-zone audio matrix systems, automotive head units and amplifiers, professional digital mixers, and networked audio interfaces. The dual-core configuration also makes the part suitable for hands-free and echo-cancellation front ends as well as effects processors in musical instrument amplification.
When designing with this part, verify the NXP End-of-Life status and last-time-buy window before committing to new production. Plan firmware and qualification effort assuming single-source supply, and confirm I/O voltage compatibility with codec and host processors early in the schematic phase. This page synthesizes distributor pricing, drop-in Symphony alternatives, and practical design notes not found in the standalone datasheet.
드롭인 대체품: DSPB56725CAF — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
DSPB56721CAF
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DSPB56724CAF
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
DSP56311
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
DSPB56725CAF 사양
| Device Type | Audio Digital Signal Processor (DSP) |
| Core Architecture | Dual DSP56300 24-bit cores |
| Core Clock Frequency | 200 MHz |
| On-Chip RAM | 112 kB |
| Non-Volatile Memory | External |
| 패키지 / 케이스 | 80-LQFP (14x14 mm) |
| 실장 유형 | Surface Mount |
| Packaging | Tray |
| 인터페이스 | Host, I2C, SAI, SPI |
| Voltage - I/O | 3.3 V |
| Temperature Grade | Industrial |
| Terminal Form | Gull Wing |
| Number of Terminals | 80 |
| Code Compatibility | DSP56000, DSP56300 families |
| Pin Compatibility | DSP56721 (Symphony family) |
| RoHS 상태 | Pb-Free (per Mouser listing) |
DSPB56725CAF 80-lqfp (14x14 mm) 핀 구성 가이드
DSPB56725CAF(80-lqfp (14x14 mm) 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: DSPB56725CAF.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
DSPB56725CAF 적합 용도: 6 애플리케이션s: Multi-Channel AV Receiver Audio Processing, Sound Bar and Home Theater DSP, Automotive Head Unit and Amplifier, Professional Digital Mixer Console, Networked Multi-Zone Audio Matrix, Hands-Free and Echo Cancellation Front End.
Multi-Channel AV Receiver Audio Processing
The DSPB56725CAF fits AV receiver audio processing because its dual 24-bit DSP56300 cores at 200 MHz provide symmetric or split-pipeline processing of multi-channel Dolby/DTS decode, room correction, and bass management. The 112 kB on-chip RAM holds active filter banks and biquad coefficient tables, while the SAI peripheral streams 8+ channels between the DSP and the CODEC/DAC array. Pin compatibility with the DSP56721 means PCB layouts designed for the existing Symphony family can accept this part as a drop-in, and code compatibility with the DSP56000/56300 families lets teams reuse mature audio libraries and codecs. Power dissipation is moderate at industrial temperatures, allowing fanless receiver chassis without thermal hotspots.
추천
Sound Bar and Home Theater DSP
The DSPB56725CAF is well-suited for sound bar DSP applications where dual cores can run virtualizer/surround algorithms on the left/right channels concurrently. Its 200 MHz clock and 112 kB on-chip RAM sustain biquad cascades, dynamic range compression, and delay-line based room virtualization at full audio rates. The Host, I2C, and SPI interfaces connect directly to wireless audio receivers and front-panel microcontrollers, while the 3.3 V I/O voltage domain simplifies level shifting to companion Wi-Fi/Bluetooth modules. With the part entering NXP last-time-buy, sound bar designers can re-use this part on existing Symphony DSP5672x layouts while qualifying an alternative.
추천
Automotive Head Unit and Amplifier
In automotive head units and external amplifiers, the DSPB56725CAF handles time-alignment, parametric EQ, and active crossover processing for multi-way speaker systems. The dual-core architecture allows one core to manage speaker diagnostics and protection while the other runs the audio processing pipeline. Industrial temperature grade operation matches typical automotive cabin thermal environments, and the Host/SAI interface supports glueless connection to external ADCs, DACs, and MOST/Ethernet audio transports. The 80-LQFP package provides robust gull-wing leads for high-vibration environments, which is critical for chassis-mounted amplifier designs.
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Professional Digital Mixer Console
The DSPB56725CAF targets professional digital mixers where each channel strip demands dynamics, EQ, and bus-routing processing in real time. The dual DSP56300 cores at 200 MHz provide the per-channel MIPS budget for 48/96 kHz processing, while 112 kB on-chip RAM stores per-channel coefficient sets and metering state. The Host interface accepts control from the mixer's ARM/SoC control plane, and SAI streams audio between the DSP and the I/O card ADCs/DACs. Code compatibility with the DSP56000/56300 families lets engineers reuse mature dynamics and EQ libraries already deployed in shipping consoles.
추천
Networked Multi-Zone Audio Matrix
The DSPB56725CAF fits networked multi-zone audio where each zone requires independent sample-rate conversion, EQ, and volume control. The dual-core architecture enables one zone's processing to be offloaded to a separate core for isolation and deterministic latency, while the SAI peripheral handles inter-IC audio between the DSP and the network processor. With 112 kB of on-chip RAM, multiple zones can be processed concurrently without external memory thrashing, and the Host interface accepts zone selection and metadata from the network stack running on the host CPU. Industrial temperature grade operation supports installation in equipment closets and AV racks.
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Hands-Free and Echo Cancellation Front End
The DSPB56725CAF's dual DSP56300 cores make it suitable for hands-free and acoustic echo cancellation front ends in conference phones and in-room conferencing systems. One core runs the adaptive AEC/NR algorithm while the second core handles beamforming, AGC, and barge-in detection, keeping processing latency under tight real-time budgets. The 200 MHz clock sustains 16 kHz/48 kHz sample-rate processing for far-field microphone arrays, while 112 kB on-chip RAM holds adaptive filter state and per-microphone coefficient buffers. The I2C and SPI peripherals interface to PDM microphone front ends and the host controller managing call state.
추천
추천 제품 요약
엔지니어링 참조 데이터: DSPB56725CAF — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | DSPB56721CAF | DSPB56724CAF | DSP56311 |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 80-LQFP (14x14) | 80-LQFP (14x14) - same | 80-LQFP (14x14) - same | 80-LQFP family - same |
| Core Architecture | Dual DSP56300 24-bit | Single DSP56300 24-bit | Dual DSP56300 24-bit | Single DSP56300 24-bit |
| Core Clock | 200 MHz | 200 MHz | 200 MHz | Up to 150 MHz |
| Pin Compatibility | DSP56721 family | Yes (Symphony family) | Yes (Symphony family) | No (different pinout) |
| Code Compatibility | DSP56000 / DSP56300 | DSP56000 / DSP56300 | DSP56000 / DSP56300 | DSP56300 |
| Temperature Grade | Industrial | Industrial | Industrial | Industrial |
주요 차별점
- Dual-core 24-bit DSP56300 architecture at 200 MHz (vs DSPB56721CAF)
- 112 kB on-chip RAM for active filter and coefficient state (vs DSPB56724CAF)
- Symphony family code and pin compatibility (vs DSP56311)
설계 노트
DSPB56725CAF is under NXP End-of-Life per the official NXP product page - confirm last-time-buy and supply windows with NXP authorized sales before committing to new production. New designs should plan to migrate to a pin-compatible Symphony DSP5672x family member (e.g. DSPB56721CAF) or a successor device, and avoid routing that depends on indefinite multi-year continuity of this exact part number.
Estimated: at 200 MHz core clock and typical 1.2 V core / 3.3 V I/O supplies, plan decoupling on each VDD/VSS pin pair with a 100 nF ceramic placed within 3 mm of the lead, plus a bulk 4.7 uF to 10 uF near the package. The 3.3 V I/O domain allows direct connection to 3.3 V logic CODECs and host MCUs, but level shifting is required for any 5 V peripherals.
The 80-LQFP (14x14) package has 0.5 mm pitch gull-wing leads - use a 4-layer PCB with continuous ground plane beneath the device and route SAI clock/data as matched-length pairs to within 50 mil tolerance to minimize jitter on TDM audio streams. Keep the crystal/oscillator and PLL filter components close to their dedicated pins to avoid jitter injection into the audio clock domain.
규정 준수 정보
Pb-Free per Mouser listing; full RoHS/REACH/AEC-Q100 declarations should be requested from NXP for production builds. Part is under NXP End-of-Life with a published Product Change Notice.
