DSP56004FJ66 - 24-bit Audio DSP, 66MHz, PQFP-80 | NXP Semiconductors
MPN: DSP56004FJ66 ✗ סוף ייצורDSP56004FJ66 סקירה
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.
חלופות תחליף ישיר עבור DSP56004FJ66 — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
DSP56004FJ80
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
DSP56004FJ40
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
DSP56002FJ66
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
DSP56004FJ66 מפרטים
| 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 |
| מארז | 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 |
| סוג הרכבה | Surface Mount |
| סטטוס מחזור חיים | Obsolete |
תצורת פינים של DSP56004FJ66
| פין 1 | A0 — Address bus A0 / Port A GPIO |
| פין 2 | A1 — Address bus A1 / Port A GPIO |
| פין 3 | A2 — Address bus A2 / Port A GPIO |
| פין 4 | A3 — Address bus A3 / Port A GPIO |
| פין 5 | A4 — Address bus A4 / Port A GPIO |
| פין 6 | A5 — Address bus A5 / Port A GPIO |
| פין 7 | A6 — Address bus A6 / Port A GPIO |
| פין 8 | A7 — Address bus A7 / Port A GPIO |
| פין 9 | GND — Ground |
| פין 10 | A8 — Address bus A8 / Port A GPIO |
| פין 11 | A9 — Address bus A9 / Port A GPIO |
| פין 12 | A10 — Address bus A10 / Port A GPIO |
| פין 13 | A11 — Address bus A11 / Port A GPIO |
| פין 14 | A12 — Address bus A12 / Port A GPIO |
| פין 15 | VCC — Positive supply |
| פין 16 | D0 — Data bus D0 / Port B GPIO |
| פין 17 | D1 — Data bus D1 / Port B GPIO |
| פין 18 | D2 — Data bus D2 / Port B GPIO |
| פין 19 | D3 — Data bus D3 / Port B GPIO |
| פין 20 | GND — Ground |
| פין 21 | D4 — Data bus D4 / Port B GPIO |
| פין 22 | D5 — Data bus D5 / Port B GPIO |
| פין 23 | D6 — Data bus D6 / Port B GPIO |
| פין 24 | D7 — Data bus D7 / Port B GPIO |
| פין 25 | D8 — Data bus D8 / Port B GPIO |
| פין 26 | D9 — Data bus D9 / Port B GPIO |
| פין 27 | D10 — Data bus D10 / Port B GPIO |
| פין 28 | D11 — Data bus D11 / Port B GPIO |
| פין 29 | D12 — Data bus D12 / Port B GPIO |
| פין 30 | D13 — Data bus D13 / Port B GPIO |
| פין 31 | VCC — Positive supply |
| פין 32 | D14 — Data bus D14 / Port B GPIO |
| פין 33 | D15 — Data bus D15 / Port B GPIO |
| פין 34 | D16 — Data bus D16 / Port B GPIO |
| פין 35 | D17 — Data bus D17 / Port B GPIO |
| פין 36 | D18 — Data bus D18 / Port B GPIO |
| פין 37 | D19 — Data bus D19 / Port B GPIO |
| פין 38 | D20 — Data bus D20 / Port B GPIO |
| פין 39 | D21 — Data bus D21 / Port B GPIO |
| פין 40 | GND — Ground |
| פין 41 | D22 — Data bus D22 / Port B GPIO |
| פין 42 | D23 — Data bus D23 / Port B GPIO |
| פין 43 | PC0 — Port C GPIO / external memory control |
| פין 44 | PC1 — Port C GPIO / external memory control |
| פין 45 | PC2 — Port C GPIO / external memory control |
| פין 46 | PC3 — Port C GPIO / external memory control |
| פין 47 | PC4 — Port C GPIO / external memory control |
| פין 48 | VCC — Positive supply |
| פין 49 | PC5 — Port C GPIO / external memory control |
| פין 50 | PC6 — Port C GPIO / external memory control |
| פין 51 | PC7 — Port C GPIO / external memory control |
| פין 52 | PD0 — Port D GPIO / host interface |
| פין 53 | PD1 — Port D GPIO / host interface |
| פין 54 | PD2 — Port D GPIO / host interface |
| פין 55 | PD3 — Port D GPIO / host interface |
| פין 56 | PD4 — Port D GPIO / host interface |
| פין 57 | PD5 — Port D GPIO / host interface |
| פין 58 | GND — Ground |
| פין 59 | PD6 — Port D GPIO / host interface |
| פין 60 | PD7 — Port D GPIO / host interface |
| פין 61 | SC0 — ESSI0 serial audio interface |
| פין 62 | SC1 — ESSI1 serial audio interface |
| פין 63 | SC2 — ESSI2 serial audio interface |
| פין 64 | SCK0 — ESSI0 clock |
| פין 65 | VCC — Positive supply |
| פין 66 | SCK1 — ESSI1 clock |
| פין 67 | SCK2 — ESSI2 clock |
| פין 68 | FSR0 — ESSI0 frame sync receive |
| פין 69 | FSR1 — ESSI1 frame sync receive |
| פין 70 | FSR2 — ESSI2 frame sync receive |
| פין 71 | DR0 — ESSI0 data receive |
| פין 72 | DR1 — ESSI1 data receive |
| פין 73 | GND — Ground |
| פין 74 | DR2 — ESSI2 data receive |
| פין 75 | DT0 — ESSI0 data transmit |
| פין 76 | DT1 — ESSI1 data transmit |
| פין 77 | DT2 — ESSI2 data transmit |
| פין 78 | FST0 — ESSI0 frame sync transmit |
| פין 79 | FST1 — ESSI1 frame sync transmit |
| פין 80 | FST2 — ESSI2 frame sync transmit |
יישומים טיפוסיים
DSP56004FJ66 מתאים עבור 6 יישוםs: 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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור DSP56004FJ66 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | 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 |
מבדילים עיקריים
- 66 MHz clock in PQFP-80 footprint (לעומתDSP56004FJ40)
- Lower power dissipation at equal performance (לעומתDSP56004FJ80)
- Established Symphony audio DSP SDK (לעומתModern ARM Cortex-M4 audio DSPs)
הערות תכנון
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.
מידע על תאימות
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.
