DSP56004FJ66 - 24-bit Audio DSP, 66MHz, PQFP-80 | NXP Semiconductors
Référence : DSP56004FJ66 ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 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 Présentation
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.
Alternatives de remplacement direct pour DSP56004FJ66 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
DSP56004FJ80
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
DSP56004FJ40
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
DSP56002FJ66
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
DSP56004FJ66 Spécifications
| 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 |
| Boîtier | 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 |
| Type de montage | Surface Mount |
| Statut du cycle de vie | Obsolete |
Configuration des broches de DSP56004FJ66
| Broche 1 | A0 — Address bus A0 / Port A GPIO |
| Broche 2 | A1 — Address bus A1 / Port A GPIO |
| Broche 3 | A2 — Address bus A2 / Port A GPIO |
| Broche 4 | A3 — Address bus A3 / Port A GPIO |
| Broche 5 | A4 — Address bus A4 / Port A GPIO |
| Broche 6 | A5 — Address bus A5 / Port A GPIO |
| Broche 7 | A6 — Address bus A6 / Port A GPIO |
| Broche 8 | A7 — Address bus A7 / Port A GPIO |
| Broche 9 | GND — Ground |
| Broche 10 | A8 — Address bus A8 / Port A GPIO |
| Broche 11 | A9 — Address bus A9 / Port A GPIO |
| Broche 12 | A10 — Address bus A10 / Port A GPIO |
| Broche 13 | A11 — Address bus A11 / Port A GPIO |
| Broche 14 | A12 — Address bus A12 / Port A GPIO |
| Broche 15 | VCC — Positive supply |
| Broche 16 | D0 — Data bus D0 / Port B GPIO |
| Broche 17 | D1 — Data bus D1 / Port B GPIO |
| Broche 18 | D2 — Data bus D2 / Port B GPIO |
| Broche 19 | D3 — Data bus D3 / Port B GPIO |
| Broche 20 | GND — Ground |
| Broche 21 | D4 — Data bus D4 / Port B GPIO |
| Broche 22 | D5 — Data bus D5 / Port B GPIO |
| Broche 23 | D6 — Data bus D6 / Port B GPIO |
| Broche 24 | D7 — Data bus D7 / Port B GPIO |
| Broche 25 | D8 — Data bus D8 / Port B GPIO |
| Broche 26 | D9 — Data bus D9 / Port B GPIO |
| Broche 27 | D10 — Data bus D10 / Port B GPIO |
| Broche 28 | D11 — Data bus D11 / Port B GPIO |
| Broche 29 | D12 — Data bus D12 / Port B GPIO |
| Broche 30 | D13 — Data bus D13 / Port B GPIO |
| Broche 31 | VCC — Positive supply |
| Broche 32 | D14 — Data bus D14 / Port B GPIO |
| Broche 33 | D15 — Data bus D15 / Port B GPIO |
| Broche 34 | D16 — Data bus D16 / Port B GPIO |
| Broche 35 | D17 — Data bus D17 / Port B GPIO |
| Broche 36 | D18 — Data bus D18 / Port B GPIO |
| Broche 37 | D19 — Data bus D19 / Port B GPIO |
| Broche 38 | D20 — Data bus D20 / Port B GPIO |
| Broche 39 | D21 — Data bus D21 / Port B GPIO |
| Broche 40 | GND — Ground |
| Broche 41 | D22 — Data bus D22 / Port B GPIO |
| Broche 42 | D23 — Data bus D23 / Port B GPIO |
| Broche 43 | PC0 — Port C GPIO / external memory control |
| Broche 44 | PC1 — Port C GPIO / external memory control |
| Broche 45 | PC2 — Port C GPIO / external memory control |
| Broche 46 | PC3 — Port C GPIO / external memory control |
| Broche 47 | PC4 — Port C GPIO / external memory control |
| Broche 48 | VCC — Positive supply |
| Broche 49 | PC5 — Port C GPIO / external memory control |
| Broche 50 | PC6 — Port C GPIO / external memory control |
| Broche 51 | PC7 — Port C GPIO / external memory control |
| Broche 52 | PD0 — Port D GPIO / host interface |
| Broche 53 | PD1 — Port D GPIO / host interface |
| Broche 54 | PD2 — Port D GPIO / host interface |
| Broche 55 | PD3 — Port D GPIO / host interface |
| Broche 56 | PD4 — Port D GPIO / host interface |
| Broche 57 | PD5 — Port D GPIO / host interface |
| Broche 58 | GND — Ground |
| Broche 59 | PD6 — Port D GPIO / host interface |
| Broche 60 | PD7 — Port D GPIO / host interface |
| Broche 61 | SC0 — ESSI0 serial audio interface |
| Broche 62 | SC1 — ESSI1 serial audio interface |
| Broche 63 | SC2 — ESSI2 serial audio interface |
| Broche 64 | SCK0 — ESSI0 clock |
| Broche 65 | VCC — Positive supply |
| Broche 66 | SCK1 — ESSI1 clock |
| Broche 67 | SCK2 — ESSI2 clock |
| Broche 68 | FSR0 — ESSI0 frame sync receive |
| Broche 69 | FSR1 — ESSI1 frame sync receive |
| Broche 70 | FSR2 — ESSI2 frame sync receive |
| Broche 71 | DR0 — ESSI0 data receive |
| Broche 72 | DR1 — ESSI1 data receive |
| Broche 73 | GND — Ground |
| Broche 74 | DR2 — ESSI2 data receive |
| Broche 75 | DT0 — ESSI0 data transmit |
| Broche 76 | DT1 — ESSI1 data transmit |
| Broche 77 | DT2 — ESSI2 data transmit |
| Broche 78 | FST0 — ESSI0 frame sync transmit |
| Broche 79 | FST1 — ESSI1 frame sync transmit |
| Broche 80 | FST2 — ESSI2 frame sync transmit |
Applications typiques
DSP56004FJ66 convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour DSP56004FJ66 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- 66 MHz clock in PQFP-80 footprint (vs DSP56004FJ40)
- Lower power dissipation at equal performance (vs DSP56004FJ80)
- Established Symphony audio DSP SDK (vs Modern ARM Cortex-M4 audio DSPs)
Notes de conception
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.
Informations de conformité
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.
