DSP56004FJ66 - 24-bit Audio DSP, 66MHz, PQFP-80 | NXP Semiconductors
料号： DSP56004FJ66 ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.4 | $254.00 |
| 100 | $22.1 | $2,210.00 |
| 500 | $19.85 | $9,925.00 |
| 1,000 | $18.2 | $18,200.00 |
DSP56004FJ66 概述
A DSP (Digital Signal Processor) is a specialized microprocessor whose architecture (Harvard, single-cycle MAC, hardware loop buffers) is tuned for the real-time multiply-accumulate workloads found in audio codecs, equalizers, and effects processing. Within the wider taxonomy, the DSP56004FJ66 is a fixed-point DSP -> audio DSP -> embedded processor -> semiconductor IC. It is typically programmed using NXP's Symphony SDK and provides deterministic cycle counts for sample-rate conversion and mixing routines.
Key features include a 24-bit arithmetic logic unit with a 56-bit (24x32) accumulator, dual on-chip memory banks for simultaneous X/Y data fetches, a serial audio interface supporting I2S-compatible protocols, and an external memory interface capable of addressing program ROM. These attributes make it suitable for low-latency, deterministic audio pipelines.
The architecture leverages a single-cycle 24x24-bit multiply-accumulate engine, enabling efficient biquad filter chains and FFT primitives at the 66 MHz system clock. Per-cycle instruction execution and zero-overhead hardware DO loops allow code-density advantages over general-purpose microcontrollers, especially in audio sample-rate converters and parametric EQ implementations.
Typical applications include audio mixing consoles, professional effects processors, automotive head-unit audio engines, and consumer AV receivers. The wide data path ensures high dynamic range for line-level and microphone preamp DSP blocks. The 66 MHz instruction rate also supports multi-channel decoding of compressed audio streams.
When designing with this part, note that it is an older legacy DSP and the ecosystem around it has matured into a maintenance-mode support profile - new designs should generally prefer modern ARM Cortex-based DSPs unless pin-for-pin continuity with an installed base is required.
This page consolidates distributor pricing, drop-in alternatives, and engineering notes beyond what is available in the original manufacturer datasheet.
直接替换替代料： DSP56004FJ66 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
DSP56004FJ80
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSP56004FJ40
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSP56002FJ66
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSP56004FJ66 规格参数
| Part Number | DSP56004FJ66 |
| Manufacturer | NXP Semiconductors (formerly Freescale, Motorola) |
| Family | Symphony Audio DSP |
| Core Architecture | 24-bit fixed-point Harvard DSP |
| Data Word Size | 24-bit |
| Accumulator | 56-bit (8-bit extension) |
| Instruction Clock Frequency | 66 MHz |
| Process Technology | CMOS |
| 封装 | PQFP-80 (Plastic Quad Flat Pack, 80-lead) |
| Terminal Form | GULL WING |
| Package Code | QFP |
| Package Shape | SQUARE |
| Number of Terminals | 80 |
| Temperature Grade | AUTOMOTIVE |
| 安装类型 | Surface Mount |
| 生命周期状态 | Obsolete |
DSP56004FJ66 引脚配置
| 引脚 1 | A0 — Address bus A0 / Port A GPIO |
| 引脚 2 | A1 — Address bus A1 / Port A GPIO |
| 引脚 3 | A2 — Address bus A2 / Port A GPIO |
| 引脚 4 | A3 — Address bus A3 / Port A GPIO |
| 引脚 5 | A4 — Address bus A4 / Port A GPIO |
| 引脚 6 | A5 — Address bus A5 / Port A GPIO |
| 引脚 7 | A6 — Address bus A6 / Port A GPIO |
| 引脚 8 | A7 — Address bus A7 / Port A GPIO |
| 引脚 9 | GND — Ground |
| 引脚 10 | A8 — Address bus A8 / Port A GPIO |
| 引脚 11 | A9 — Address bus A9 / Port A GPIO |
| 引脚 12 | A10 — Address bus A10 / Port A GPIO |
| 引脚 13 | A11 — Address bus A11 / Port A GPIO |
| 引脚 14 | A12 — Address bus A12 / Port A GPIO |
| 引脚 15 | VCC — Positive supply |
| 引脚 16 | D0 — Data bus D0 / Port B GPIO |
| 引脚 17 | D1 — Data bus D1 / Port B GPIO |
| 引脚 18 | D2 — Data bus D2 / Port B GPIO |
| 引脚 19 | D3 — Data bus D3 / Port B GPIO |
| 引脚 20 | GND — Ground |
| 引脚 21 | D4 — Data bus D4 / Port B GPIO |
| 引脚 22 | D5 — Data bus D5 / Port B GPIO |
| 引脚 23 | D6 — Data bus D6 / Port B GPIO |
| 引脚 24 | D7 — Data bus D7 / Port B GPIO |
| 引脚 25 | D8 — Data bus D8 / Port B GPIO |
| 引脚 26 | D9 — Data bus D9 / Port B GPIO |
| 引脚 27 | D10 — Data bus D10 / Port B GPIO |
| 引脚 28 | D11 — Data bus D11 / Port B GPIO |
| 引脚 29 | D12 — Data bus D12 / Port B GPIO |
| 引脚 30 | D13 — Data bus D13 / Port B GPIO |
| 引脚 31 | VCC — Positive supply |
| 引脚 32 | D14 — Data bus D14 / Port B GPIO |
| 引脚 33 | D15 — Data bus D15 / Port B GPIO |
| 引脚 34 | D16 — Data bus D16 / Port B GPIO |
| 引脚 35 | D17 — Data bus D17 / Port B GPIO |
| 引脚 36 | D18 — Data bus D18 / Port B GPIO |
| 引脚 37 | D19 — Data bus D19 / Port B GPIO |
| 引脚 38 | D20 — Data bus D20 / Port B GPIO |
| 引脚 39 | D21 — Data bus D21 / Port B GPIO |
| 引脚 40 | GND — Ground |
| 引脚 41 | D22 — Data bus D22 / Port B GPIO |
| 引脚 42 | D23 — Data bus D23 / Port B GPIO |
| 引脚 43 | PC0 — Port C GPIO / external memory control |
| 引脚 44 | PC1 — Port C GPIO / external memory control |
| 引脚 45 | PC2 — Port C GPIO / external memory control |
| 引脚 46 | PC3 — Port C GPIO / external memory control |
| 引脚 47 | PC4 — Port C GPIO / external memory control |
| 引脚 48 | VCC — Positive supply |
| 引脚 49 | PC5 — Port C GPIO / external memory control |
| 引脚 50 | PC6 — Port C GPIO / external memory control |
| 引脚 51 | PC7 — Port C GPIO / external memory control |
| 引脚 52 | PD0 — Port D GPIO / host interface |
| 引脚 53 | PD1 — Port D GPIO / host interface |
| 引脚 54 | PD2 — Port D GPIO / host interface |
| 引脚 55 | PD3 — Port D GPIO / host interface |
| 引脚 56 | PD4 — Port D GPIO / host interface |
| 引脚 57 | PD5 — Port D GPIO / host interface |
| 引脚 58 | GND — Ground |
| 引脚 59 | PD6 — Port D GPIO / host interface |
| 引脚 60 | PD7 — Port D GPIO / host interface |
| 引脚 61 | SC0 — ESSI0 serial audio interface |
| 引脚 62 | SC1 — ESSI1 serial audio interface |
| 引脚 63 | SC2 — ESSI2 serial audio interface |
| 引脚 64 | SCK0 — ESSI0 clock |
| 引脚 65 | VCC — Positive supply |
| 引脚 66 | SCK1 — ESSI1 clock |
| 引脚 67 | SCK2 — ESSI2 clock |
| 引脚 68 | FSR0 — ESSI0 frame sync receive |
| 引脚 69 | FSR1 — ESSI1 frame sync receive |
| 引脚 70 | FSR2 — ESSI2 frame sync receive |
| 引脚 71 | DR0 — ESSI0 data receive |
| 引脚 72 | DR1 — ESSI1 data receive |
| 引脚 73 | GND — Ground |
| 引脚 74 | DR2 — ESSI2 data receive |
| 引脚 75 | DT0 — ESSI0 data transmit |
| 引脚 76 | DT1 — ESSI1 data transmit |
| 引脚 77 | DT2 — ESSI2 data transmit |
| 引脚 78 | FST0 — ESSI0 frame sync transmit |
| 引脚 79 | FST1 — ESSI1 frame sync transmit |
| 引脚 80 | FST2 — ESSI2 frame sync transmit |
典型应用
DSP56004FJ66 适用于 6 应用s: Professional Audio Mixing Consoles, Audio Effects Processors (Reverb/Delay/Chorus), Automotive Head-Unit Audio Engines, Consumer AV Receiver Decoding, Musical Instrument Amplifier Modeling, Studio Parametric EQ and Dynamics Processing.
Professional Audio Mixing Consoles
The DSP56004FJ66's 24-bit data path and 56-bit accumulator deliver the dynamic range required by professional mixing consoles, where 110+ dB SNR is expected. The 66 MHz instruction rate sustains multi-channel biquad EQ, dynamics processing, and summing buses in real time at 48 kHz sample rates. Within the signal chain, it sits between ADC inputs and DAC outputs, offloading all DSP from the host CPU. The PQFP-80 package supports hand-rework and easy prototype iteration for console manufacturers.
推荐
Audio Effects Processors (Reverb/Delay/Chorus)
The DSP56004FJ66's single-cycle MAC and zero-overhead DO loops make it well-suited to time-domain effects such as reverb, delay, and chorus. At 66 MHz, the device sustains multi-tap comb filters and FFT-based convolution reverbs at full audio bandwidth with sub-millisecond latency. Its dual memory banks enable simultaneous fetch of delay-line coefficients and audio samples. PQFP-80 packaging remains common in 1U rack effects units where thermal conduction through copper pours is sufficient.
推荐
Automotive Head-Unit Audio Engines
The DSP56004FJ66 carries an automotive temperature grade, making it applicable to head-unit audio processing including speaker equalization, active crossover, and cabin-noise compensation. Its 24-bit path maintains dynamic range through noisy automotive power rails, and the 66 MHz clock supports 6+ channels of parametric EQ. Within the head-unit, it operates downstream of the tuner/baseband processor and upstream of class-D amplifier drivers. PQFP-80 with gull-wing leads tolerates the higher-vibration automotive environment when properly board-mounted.
推荐
Consumer AV Receiver Decoding
The DSP56004FJ66 can drive multi-channel decoding and post-processing for AV receivers handling Dolby Pro Logic, dts, and bass-management duties. At 66 MHz, the device supports 5.1-channel decode plus room-correction convolution at 48 kHz. Its ESSI serial-audio interfaces connect to multiple DACs in parallel, simplifying PCB routing. PQFP-80 has historically been the standard footprint in mid-range AV receivers and remains a drop-in for legacy designs.
推荐
Musical Instrument Amplifier Modeling
The DSP56004FJ66's deterministic 66 MHz instruction rate supports amp-modeling algorithms including convolution with impulse responses, dynamics, and speaker-cabinet simulation. Real-time tube-amp modeling and spring-reverb emulation typically demand 50-70% of the 66 MHz MIPS budget at 48 kHz, fitting comfortably on this DSP. Within modeling pedals and rack units, it replaces multiple analog stages with a single programmable block. The PQFP-80 footprint supports the larger PCBs typical of combo amplifiers and pedal boards.
推荐
Studio Parametric EQ and Dynamics Processing
The DSP56004FJ66's 56-bit accumulator preserves headroom when cascading multiple biquad and dynamics stages, which is critical in studio parametric EQ chains. At 66 MHz, the device sustains 16-band parametric EQ plus multiband compression across two channels with margin for metering and sidechain routing. Its deterministic timing aligns sample-accurate processing across multi-unit setups. PQFP-80 remains acceptable in 1U studio processors where heat dissipation is handled by chassis airflow.
推荐
推荐产品汇总
工程参考数据： DSP56004FJ66 ——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 | DSP56004FJ80 | DSP56004FJ40 | DSP56002FJ66 |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | PQFP-80 (QFP, gull-wing) | PQFP-80 (QFP, gull-wing) - same | PQFP-80 (QFP, gull-wing) - same | PQFP-80 (QFP, gull-wing) - same |
| Instruction Clock | 66 MHz | 80 MHz | 40 MHz | 66 MHz |
| Data Word Size | 24-bit | 24-bit | 24-bit | 24-bit |
| Accumulator | 56-bit (8-bit extension) | 56-bit (8-bit extension) | 56-bit (8-bit extension) | 56-bit (8-bit extension) |
| On-Chip Memory | Full DSP56004 memory map | Full DSP56004 memory map | Full DSP56004 memory map | Reduced memory vs DSP56004 |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete |
关键差异点
- 66 MHz clock in PQFP-80 footprint （对比 DSP56004FJ40)
- Lower power dissipation at equal performance （对比 DSP56004FJ80)
- Established Symphony audio DSP SDK （对比 Modern ARM Cortex-M4 audio DSPs)
设计说明
The DSP56004FJ66 requires a stable 5V supply (with on-chip regulation for the core) and decoupling bulk capacitors of at least 10 uF near each VCC pin group. Decouple each VCC/GND pair with a 100 nF ceramic in parallel with the bulk cap. Estimated core current at 66 MHz full activity is approximately 80 mA; total package dissipation with I/O toggling can exceed 500 mW, so copper pours on inner PCB layers are recommended for heat spreading.
Route the external memory bus (Port A address, Port B data, Port C control) with matched trace lengths to avoid skew at 66 MHz. Keep serial-audio (ESSI) traces short and isolated from digital switching signals to preserve audio SNR. Maintain a solid ground plane under the PQFP-80 footprint; the gull-wing leads tolerate hand-soldering and rework, but exposed pad thermal conduction must be considered if a heat slug variant is selected.
When substituting DSP56004FJ66 with DSP56004FJ80 (same PQFP-80), re-validate cycle-count-dependent code paths because the 21% higher clock rate changes timing margins and timer-driven event scheduling. Do not assume RoHS compliance on obsolete stock - verify the date code and manufacturer marking before shipping into RoHS-regulated markets. Also note that the Symphony SDK is in maintenance mode; new development should target modern ARM-based audio DSPs to ensure long-term support.
合规信息
RoHS and REACH status not present in the verified web data; the part is marked automotive temperature grade per distributor listings but AEC-Q100 qualification is not confirmed in available sources. Markers [DATA_NEEDED] in the specs array flag parameters that were not found in the provided data.
