DSPB56720AG - Dual-Core 200MHz Audio DSP | NXP | Audio Processor
MPN： DSPB56720AG ✓ 啟用中DSPB56720AG 概覽
An audio DSP (digital signal processor) is a specialized microprocessor optimized for real-time mathematical processing of audio streams - filtering, mixing, sample-rate conversion, and codec management. Within the signal-chain hierarchy, it sits between audio converters (ADC/DAC) and system controllers, forming part of the broader embedded processor family alongside MCUs and application processors.
Key features include 200 MHz core clock for high-throughput audio algorithms, 24-bit fixed-point data path native to professional audio resolution, dual multi-core architecture for parallel audio processing, and I2C and SPI interfaces for control and data transfer. The device operates over a commercial temperature range of 0C to +70C and comes in a halogen-free, lead-free LQFP-144 package supporting surface-mount assembly.
Architecturally, the DSP56720 family continues Freescale/NXP Symphony DSP lineage, combining DSP core computation with on-chip audio peripherals to minimize external component count in audio pipelines. This integration reduces board space and simplifies firmware development for multi-channel audio products.
Typical applications include AV receivers and soundbars, professional audio mixers and effects processors, and automotive or industrial audio amplification systems where real-time multi-channel processing is required. Its 24-bit path preserves signal fidelity for high-end audio products.
Design consideration: verify supply sequencing and clock configuration against the NXP DSP56720 datasheet, and plan PCB layout with solid ground planes and short trace runs to the audio converters to preserve the 24-bit noise floor.
直接替換替代品，適用於 DSPB56720AG — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： DSPB56720AG （相同外形與佔位） — 差異在於 Package, Core Architecture, Mounting Type, Temperature Grade, Core Frequency.
DSPB56721AG
✅ 直接替換📋 參考替代品（不在目錄中）
DSPB56364AF100
⚡ 相同封裝聯絡詢價
查看資料表 →TMS320F28335QPGFAQ1
⚡ 相同封裝 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →TMS320F28376SQ-Q1
⚡ 相同封裝 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →DSPB56720AG 最大額定值與電氣特性
| Product Type | Audio Processor Digital Signal Processor (DSP) |
| Core Clock Frequency | 200 MHz |
| Data Width | 24-bit |
| Series | Symphony DSP56720/DSP56721 |
| 封裝 | 144-LQFP (20x20 mm) |
| 安裝類型 | Surface Mount |
| Terminal Form | Gull Wing |
| Package Shape | Square |
| Interfaces | I2C, SPI |
| 工作溫度 | 0C to +70C |
| Temperature Grade | Commercial |
| Lead Free | Yes |
| 無鹵素 | Yes |
| RoHS 狀態 | Compliant |
| Number of Terminals | 144 |
DSPB56720AG 腳位配置
| 腳位 1 | [DATA_NEEDED: pin name] — See NXP DSP56720/DSP56721 datasheet for full 144-LQFP pin assignment |
典型應用
DSPB56720AG 適用於 6 應用s: AV Receivers and Soundbars, Professional Audio Mixers and Effects Processors, Multi-Channel Amplifier Systems, Karaoke and Live Sound Systems, Digital Audio Interfaces and Processors, Industrial and Commercial Audio Annunciation.
AV Receivers and Soundbars
The DSPB56720AG's 200 MHz multi-core processing and native 24-bit data path make it a strong fit for AV receiver and soundbar audio engines, where Dolby/DTS decoding support, bass management, room correction, and multi-channel post-processing must run concurrently in real time. Placed between HDMI/audio input stages and multi-channel DACs, the DSP performs filtering, mixing, and sample-rate conversion while the I2C/SPI interfaces link it to the host MCU for control. The dual-core architecture allows one core to handle decode pipelines while the other runs speaker-processing algorithms, avoiding audible latency spikes.
推薦
Professional Audio Mixers and Effects Processors
Professional mixing consoles and rack effects units demand deterministic, low-latency 24-bit processing of many simultaneous channels - EQ, dynamics, reverb, and routing. The DSPB56720AG's 200 MHz Symphony core delivers the MIPS headroom for dozens of concurrent filter and effect blocks, while its 24-bit fixed-point path preserves dynamic range through long processing chains. The LQFP-144 package provides ample GPIO and serial audio ports for ADC/DAC connectivity, and I2C/SPI handle user-interface and preset management. Firmwares typically time-slice effects per core to keep round-trip latency below a few milliseconds.
推薦
Multi-Channel Amplifier Systems
In multi-zone and distributed audio amplifiers, the DSPB56720AG performs speaker equalization, level limiting, and crossover filtering ahead of power amplifier stages. Its I2C and SPI interfaces integrate with system supervisors for fault reporting and volume control, and the commercial 0C to +70C rating suits indoor installed-audio environments. A typical topology feeds the DSP from an SPDIF/I2S source, applies per-channel FIR/IIR crossovers, then outputs I2S to digital-input amplifier ICs. The 24-bit path ensures limiter action does not audibly degrade signal fidelity in high-output installations.
推薦
Karaoke and Live Sound Systems
Karaoke mixers and powered loudspeakers rely on real-time microphone processing - feedback suppression, echo, pitch shift, and voice-priority ducking - all of which map naturally onto the DSPB56720AG's 200 MHz fixed-point core. Its multi-core architecture lets effects run in parallel with mixing and routing, maintaining stable latency during simultaneous mic and music processing. The LQFP-144 footprint offers enough serial ports to connect multiple ADC channels for mic inputs and multiple DAC channels for output zones, reducing external glue logic and keeping BOM cost controlled in cost-sensitive entertainment products.
推薦
Digital Audio Interfaces and Processors
Standalone digital audio processors - format converters, sample-rate converters, and networked-audio endpoints - use the DSPB56720AG as the central processing element. Its 24-bit path and 200 MHz clock handle asynchronous sample-rate conversion and clock-domain bridging cleanly, while I2C/SPI manage communication with network modules and host controllers. Because the Symphony family integrates audio-specific peripherals on-chip, designers can implement SRC, level metering, and routing tables without external FPGA support. The commercial temperature range and lead-free LQFP-144 package support standard consumer product assembly and compliance requirements.
推薦
Industrial and Commercial Audio Annunciation
Public-address, paging, and safety-annunciation systems in commercial buildings require reliable voice processing, message storage playback, and zone routing. The DSPB56720AG provides the real-time filtering, AGC, and delay-align processing needed for intelligible announcements across zones, with SPI/I2C linking to system controllers for fault monitoring. Its lead-free, halogen-free LQFP-144 construction meets commercial environmental compliance requirements, and the 200 MHz processing budget leaves margin for future firmware features such as ambient-noise-adaptive volume, extending product life without hardware redesign.
推薦
推薦產品摘要
工程參考資料，適用於 DSPB56720AG — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | DSPB56721AG | DSPB56364AF100 | TMS320F28335QPGFAQ1 |
|---|---|---|---|---|
| Package | 144-LQFP (20x20 mm) | 144-LQFP (20x20 mm) | 144-LQFP | 144-LQFP |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Texas Instruments |
| Core Clock | 200 MHz | 200 MHz | 100 MHz | 150 MHz |
| Data Width | 24-bit | 24-bit | 24-bit | 32-bit floating point |
| Architecture | Multi-core audio DSP | Multi-core audio DSP | Single-core DSP | Single-core control DSP |
| Interfaces | I2C, SPI | I2C, SPI | SPI, ESAI | SPI, I2C, CAN, eQEP |
| Audio Optimization | Yes (Symphony audio processor) | Yes | Yes (DSP56300 audio family) | No (motor/control oriented) |
| Pin Compatibility | Reference | Same family footprint | Not pin-compatible | Not pin-compatible |
主要差異化特點
- Multi-core 200 MHz audio processing (對比DSPB56364AF100)
- Audio-optimized Symphony architecture (對比TMS320F28335QPGFAQ1)
- Lead-free, halogen-free LQFP-144 (對比DSPB56721AG)
設計說明
The 144-LQFP (20x20 mm) package requires careful land-pattern design per the NXP DSP56720 datasheet footprint. Use a solid ground plane on layer 2 and connect all GND pins with short vias. Route I2S/audio serial traces as short as possible and away from clock lines to preserve the 24-bit noise floor; keep 200 MHz core clock traces impedance-controlled and length-matched where the datasheet recommends.
Decouple each supply pin group with 100 nF ceramic capacitors placed within 2 mm of the pins, plus bulk capacitance near the package. Verify the DSP56720 core and I/O supply sequencing requirements in the NXP datasheet before finalizing the power tree - incorrect sequencing can stress internal structures. Confirm exact core/I/O voltage values from the datasheet as they are not captured in distributor summary data.
The DSPB56720AG is commercial grade (0C to +70C) and not AEC-Q100 qualified - do not specify it for automotive cabins. The 'B' in DSPB56720AG denotes the Pb-free package; older 'C'-suffix counterparts may differ in assembly compatibility. Also note the DSPB56721AG differs in memory configuration, so firmware and linker files must be validated when substituting within the family.
合規資訊
Distributor data confirms lead-free, halogen-free LQFP-144 package and RoHS compliance. REACH and conflict minerals status not stated in provided data.
