DSP56004FJ66 - 24-bit Audio DSP, 66MHz, PQFP-80 | NXP Semiconductors
MPN: DSP56004FJ66 ✗ Cuối đờiDSP56004FJ66 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho DSP56004FJ66 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
DSP56004FJ80
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSP56004FJ40
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSP56002FJ66
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSP56004FJ66 Thông số kỹ thuật
| 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 |
| Hộp | 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 |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái vòng đời | Obsolete |
Cấu hình chân DSP56004FJ66
| Chân 1 | A0 — Address bus A0 / Port A GPIO |
| Chân 2 | A1 — Address bus A1 / Port A GPIO |
| Chân 3 | A2 — Address bus A2 / Port A GPIO |
| Chân 4 | A3 — Address bus A3 / Port A GPIO |
| Chân 5 | A4 — Address bus A4 / Port A GPIO |
| Chân 6 | A5 — Address bus A5 / Port A GPIO |
| Chân 7 | A6 — Address bus A6 / Port A GPIO |
| Chân 8 | A7 — Address bus A7 / Port A GPIO |
| Chân 9 | GND — Ground |
| Chân 10 | A8 — Address bus A8 / Port A GPIO |
| Chân 11 | A9 — Address bus A9 / Port A GPIO |
| Chân 12 | A10 — Address bus A10 / Port A GPIO |
| Chân 13 | A11 — Address bus A11 / Port A GPIO |
| Chân 14 | A12 — Address bus A12 / Port A GPIO |
| Chân 15 | VCC — Positive supply |
| Chân 16 | D0 — Data bus D0 / Port B GPIO |
| Chân 17 | D1 — Data bus D1 / Port B GPIO |
| Chân 18 | D2 — Data bus D2 / Port B GPIO |
| Chân 19 | D3 — Data bus D3 / Port B GPIO |
| Chân 20 | GND — Ground |
| Chân 21 | D4 — Data bus D4 / Port B GPIO |
| Chân 22 | D5 — Data bus D5 / Port B GPIO |
| Chân 23 | D6 — Data bus D6 / Port B GPIO |
| Chân 24 | D7 — Data bus D7 / Port B GPIO |
| Chân 25 | D8 — Data bus D8 / Port B GPIO |
| Chân 26 | D9 — Data bus D9 / Port B GPIO |
| Chân 27 | D10 — Data bus D10 / Port B GPIO |
| Chân 28 | D11 — Data bus D11 / Port B GPIO |
| Chân 29 | D12 — Data bus D12 / Port B GPIO |
| Chân 30 | D13 — Data bus D13 / Port B GPIO |
| Chân 31 | VCC — Positive supply |
| Chân 32 | D14 — Data bus D14 / Port B GPIO |
| Chân 33 | D15 — Data bus D15 / Port B GPIO |
| Chân 34 | D16 — Data bus D16 / Port B GPIO |
| Chân 35 | D17 — Data bus D17 / Port B GPIO |
| Chân 36 | D18 — Data bus D18 / Port B GPIO |
| Chân 37 | D19 — Data bus D19 / Port B GPIO |
| Chân 38 | D20 — Data bus D20 / Port B GPIO |
| Chân 39 | D21 — Data bus D21 / Port B GPIO |
| Chân 40 | GND — Ground |
| Chân 41 | D22 — Data bus D22 / Port B GPIO |
| Chân 42 | D23 — Data bus D23 / Port B GPIO |
| Chân 43 | PC0 — Port C GPIO / external memory control |
| Chân 44 | PC1 — Port C GPIO / external memory control |
| Chân 45 | PC2 — Port C GPIO / external memory control |
| Chân 46 | PC3 — Port C GPIO / external memory control |
| Chân 47 | PC4 — Port C GPIO / external memory control |
| Chân 48 | VCC — Positive supply |
| Chân 49 | PC5 — Port C GPIO / external memory control |
| Chân 50 | PC6 — Port C GPIO / external memory control |
| Chân 51 | PC7 — Port C GPIO / external memory control |
| Chân 52 | PD0 — Port D GPIO / host interface |
| Chân 53 | PD1 — Port D GPIO / host interface |
| Chân 54 | PD2 — Port D GPIO / host interface |
| Chân 55 | PD3 — Port D GPIO / host interface |
| Chân 56 | PD4 — Port D GPIO / host interface |
| Chân 57 | PD5 — Port D GPIO / host interface |
| Chân 58 | GND — Ground |
| Chân 59 | PD6 — Port D GPIO / host interface |
| Chân 60 | PD7 — Port D GPIO / host interface |
| Chân 61 | SC0 — ESSI0 serial audio interface |
| Chân 62 | SC1 — ESSI1 serial audio interface |
| Chân 63 | SC2 — ESSI2 serial audio interface |
| Chân 64 | SCK0 — ESSI0 clock |
| Chân 65 | VCC — Positive supply |
| Chân 66 | SCK1 — ESSI1 clock |
| Chân 67 | SCK2 — ESSI2 clock |
| Chân 68 | FSR0 — ESSI0 frame sync receive |
| Chân 69 | FSR1 — ESSI1 frame sync receive |
| Chân 70 | FSR2 — ESSI2 frame sync receive |
| Chân 71 | DR0 — ESSI0 data receive |
| Chân 72 | DR1 — ESSI1 data receive |
| Chân 73 | GND — Ground |
| Chân 74 | DR2 — ESSI2 data receive |
| Chân 75 | DT0 — ESSI0 data transmit |
| Chân 76 | DT1 — ESSI1 data transmit |
| Chân 77 | DT2 — ESSI2 data transmit |
| Chân 78 | FST0 — ESSI0 frame sync transmit |
| Chân 79 | FST1 — ESSI1 frame sync transmit |
| Chân 80 | FST2 — ESSI2 frame sync transmit |
Ứng dụng tiêu biểu
DSP56004FJ66 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSP56004FJ66 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- 66 MHz clock in PQFP-80 footprint (vsDSP56004FJ40)
- Lower power dissipation at equal performance (vsDSP56004FJ80)
- Established Symphony audio DSP SDK (vsModern ARM Cortex-M4 audio DSPs)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
