DSP56321VF275 - 275MHz 24-Bit Fixed-Point DSP | NXP | 196-MAPBGA
Référence : DSP56321VF275 ✗ 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 | $17.6 | $17 600,00 |
DSP56321VF275 Présentation
A Digital Signal Processor (DSP) is a specialized microprocessor whose architecture (multiple execution units, hardware loop control, wide data paths, and deterministic instruction timing) is optimized for numeric-intensive algorithms such as FIR/IIR filtering, FFTs, echo cancellation, and codec processing. Within the semiconductor taxonomy, the DSP56321 sits as: DSP -> programmable DSP -> fixed-point DSP -> 24-bit audio/network DSP -> power-management-aware embedded controller. The 24-bit data word, three on-chip address generation units, six-channel DMA controller, and bootstrap ROM place it firmly in the network-class audio DSP segment.
Key features of the DSP56321VF275 include 576 KB of on-chip RAM, 576 bytes of internal ROM, an external address bus switch (EBS), an I-cache controller, a host interface, an SSI (synchronous serial interface), and an SCI (serial communications interface). Six-channel DMA reduces host CPU overhead, and the integrated EFCOP (enhanced filter coprocessor) accelerates FIR/IIR primitives for audio pipelines.
Architecturally, the DSP56321 uses a Harvard-style dual-bus core with a Program RAM of 24-bit x 24-bit organization and a parallel Instruction Cache (PM_EB) that hides external memory latency. The 275 MHz clock combined with the dual execution units produces 275 MIPS sustained throughput. The 196-MAPBGA package provides the wide parallel data, address, and host-interface bandwidth that this class of DSP requires.
Typical applications for the DSP56321VF275 include VoIP gateways, residential gateways, DSL/cable modems, professional audio effects units, hearing-aid DSP front-ends, and industrial motor control. Its host interface and SSI also make it suitable for protocol stacks that previously required an external controller, such as MPEG audio decoders and acoustic-echo-canceling hands-free car kits.
Design consideration: at 275 MHz core clock, the package thermal resistance must be respected; a 4-layer PCB with a continuous ground plane beneath the MAPBGA is recommended. Decoupling requires at least 0.1 uF and 10 uF ceramic capacitors within 5 mm of every power ball, and the PLL supply pin needs an isolated ferrite-bead-filtered rail.
This page synthesizes authorized distributor pricing, drop-in same-family NXP replacements, and practical design notes that are not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour DSP56321VF275 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec DSP56321VF275 (même facteur de forme et même empreinte) — différant par Package, DMA Channels, I/O Voltage, Mounting Type, Instruction Cache.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
DSP56321VL275
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
DSP56321VF220
✅ Remplacement direct✓ En stock
$78.5 / unité
Voir la fiche technique →DSP56321VL220
✅ Remplacement direct✓ En stock
$23.9 / unité
Voir la fiche technique →DSP56321VF200
✅ Remplacement direct✓ En stock
$62 / unité
Voir la fiche technique →DSP56311VF150
✅ Remplacement direct✓ En stock
$24.9 / unité
Voir la fiche technique →DSP56321VF275 Spécifications
| Product Type | Fixed-Point Digital Signal Processor |
| Series | DSP56300 family |
| Core Clock Speed | 275 MHz |
| Instruction Throughput | 275 MIPS / 550 MMACS |
| Data Word Width | 24-bit |
| On-Chip RAM | 576 KB |
| On-Chip ROM | 576 bytes |
| External Address Bus Width | 24-bit |
| DMA Channels | 6 |
| Communication Interfaces | Host Interface, SSI, SCI |
| Coprocessor | EFCOP (Enhanced Filter Coprocessor) |
| I/O Voltage | 3.3 V |
| Core Voltage | 1.0-1.2 V (internal regulator) |
| Boîtier | 196-MAPBGA (15x15 mm) |
| Type de montage | Surface Mount (BGA) |
| Packaging | Tray |
| Statut RoHS | Compliant (lead-free) |
Guide de configuration des broches du DSP56321VF275 196-mapbga (15x15 mm)
Configuration des broches du DSP56321VF275 (boîtier 196-mapbga (15x15 mm)). La numérotation des broches, les fonctions et les schémas de connexion sont définis dans la fiche technique du fabricant. Consultez-la pour l'empreinte exacte et les directives de soudage.
Aucune donnée de brochage détaillée disponible pour DSP56321VF275.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
DSP56321VF275 convient pour 7 applications: VoIP Gateway and Residential Gateway, Professional Audio Effects Processing, Hearing Aid DSP Front-End, DSL and Cable Modem Embedded DSP, Industrial Motor Control, Car Hands-Free Acoustic Echo Cancellation, MPEG Audio Decoder Embedded in Set-Top Box.
VoIP Gateway and Residential Gateway
The DSP56321VF275 was designed specifically for VoIP gateway and residential gateway designs where multi-channel voice processing must coexist with packet routing. Its 275 MHz core and EFCOP coprocessor can simultaneously run G.711, G.729AB, G.723.1 codecs plus acoustic echo cancellation across 16 to 64 channels without CPU offload, while the six-channel DMA engine moves RTP packets and codec data without interrupting the main execution units. The 3.3 V I/O interfaces directly to standard Ethernet PHY and SLIC devices, eliminating level shifters in the signal chain. Designers building new products today should evaluate whether the DSP56321VF275's mature firmware library still meets their roadmap; the part is NRND per NXP but remains a stable solution for long-lifecycle gateway products.
Recommandé
Professional Audio Effects Processing
Professional audio effects units - reverb, multi-band EQ, dynamics, and surround processors - require deterministic low-latency 24-bit fixed-point arithmetic. The DSP56321VF275's 275 MIPS, 24-bit data path, dual execution units, and EFCOP filter accelerator allow multiple stereo channels of convolution reverb at 48 kHz with sub-millisecond latency. The SSI interface streams samples from codecs like the AK5394A while the SCI provides MIDI and control surface connectivity. The 576 KB on-chip RAM accommodates 2 to 4 seconds of stereo impulse response, sufficient for plate and small hall reverbs. Engineers should evaluate the part against newer SHARC or Symphony DSPs for new designs, but the VF275 remains a proven platform for established product lines.
Recommandé
Hearing Aid DSP Front-End
Hearing aid and assistive listening front-end DSPs must execute beamforming, noise reduction, and compression algorithms in real time on miniature batteries. The DSP56321VF275's low core voltage (1.0-1.2 V internal), 576 KB on-chip RAM, and dedicated SSI for microphone array input support sophisticated multi-microphone algorithms while drawing modest power. The six-channel DMA enables parallel data movement from multiple microphone ADCs without processor stalls. Designers targeting hearing-aid form factors typically pair this DSP with low-power codec and Class-D amplifier ICs to build complete signal chains. Note that for new hearing-aid designs, the part's NRND status makes supply-chain planning critical.
Recommandé
DSL and Cable Modem Embedded DSP
DSL and cable modem designs embed DSP processing for channel equalization, echo cancellation, and Reed-Solomon forward error correction. The DSP56321VF275's 275 MHz core and 576 KB RAM deliver sufficient throughput for ADSL2+ and VDSL downstream processing, while its host interface connects directly to the MIPS-based host processor typically found in modem SoCs. The SCI provides management and debug channel access during development. Engineers repurposing older modem designs for industrial Ethernet or M2M gateways find the VF275 attractive due to its mature firmware ecosystem and multi-source compatible packaging.
Recommandé
Industrial Motor Control
The DSP56321VF275 can serve as a high-performance DSP in industrial motor control applications, where its 275 MHz execution and 24-bit fixed-point precision enable field-oriented control (FOC) algorithms at high PWM switching frequencies. The SSI interfaces to resolver-to-digital converters or Hall-sensor ICs, while the host interface connects to supervisory microcontrollers or HMIs. The 196-MAPBGA package provides adequate thermal margin for industrial environments when mounted on a 4-layer PCB with continuous ground plane. Designers should note that the part's NRND status makes second-source planning essential for long-lifecycle industrial products.
Recommandé
Car Hands-Free Acoustic Echo Cancellation
Automotive hands-free car kits require aggressive acoustic echo cancellation (AEC) to suppress the loudspeaker-to-microphone path. The DSP56321VF275's EFCOP coprocessor accelerates adaptive FIR filters used in AEC algorithms, while the 275 MIPS core handles residual non-linear processing. The SSI connects to automotive-grade audio codecs and Class-D amplifiers, while the SCI provides diagnostic and configuration access. The part's wide operating temperature range and mature firmware support make it suitable for AEC reference designs targeting AEC-Q100 compliant automotive audio modules.
Recommandé
MPEG Audio Decoder Embedded in Set-Top Box
Set-top box and home theater designs use DSP56321VF275 as a dedicated MPEG audio decoder for legacy Dolby and DTS bitstream processing where the main application processor cannot handle real-time decoding. The SSI connects to HDMI audio extractors and DAC ICs, while the host interface receives compressed bitstream from the main SoC. The 576 KB RAM supports compressed audio buffering for low-latency channel switching. For new set-top box designs, designers may consider newer Symphony DSPs, but the VF275 remains in service for existing product lines due to its mature MPEG decoder firmware.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour DSP56321VF275 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | DSP56321VL275 | DSP56321VF220 | DSP56321VL220 | DSP56321VF200 | DSP56311VF150 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 196-MAPBGA (15x15 mm) | 196-MAPBGA (15x15 mm) - same | 196-MAPBGA (15x15 mm) - same | 196-MAPBGA (15x15 mm) - same | 196-MAPBGA (15x15 mm) - same | 196-MAPBGA - same |
| Core Clock Speed | 275 MHz | 275 MHz | 220 MHz | 220 MHz | 200 MHz | 150 MHz |
| On-Chip RAM | 576 KB | 576 KB | 576 KB | 576 KB | 576 KB | Less than 576 KB |
| DMA Channels | 6 | 6 | 6 | 6 | 6 | 6 |
| Coprocessor | EFCOP | EFCOP | EFCOP | EFCOP | EFCOP | EFCOP |
| I/O Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
Principaux différenciateurs
- Highest speed grade in DSP56321 family (vs DSP56321VF220)
- Maximum on-chip RAM in family (vs DSP56311VF150)
- Six-channel DMA engine (vs DSP56303VL100)
Notes de conception
Estimated: at 275 MHz core clock with 1.2 V internal core voltage and typical DSP utilization around 60%, the DSP56321VF275 dissipates approximately 1.0-1.5 W. The 196-MAPBGA package requires a 4-layer PCB with a continuous ground plane beneath the BGA and thermal vias in the central ball array to keep junction temperature within the 0 C to +85 C commercial range (or -40 C to +105 C extended). Designers targeting industrial environments must derate based on actual ambient temperature and PCB copper area.
The 196-MAPBGA 15x15 mm package requires a 4-layer PCB with 0.5 mm or finer pitch fan-out. Place decoupling capacitors (0.1 uF and 10 uF ceramic) within 5 mm of every power ball, and isolate the PLL supply pin with a ferrite bead filter from the main 3.3 V rail to meet the 275 MHz jitter specification. The reference design in the NXP DSP56321 hardware manual provides the recommended stackup and via pattern.
Do not assume the DSP56321VL275 and DSP56321VF275 firmware masks are identical. While pin-compatible, certain peripheral initialization sequences and bootstrap ROM revisions differ; engineers porting firmware between speed grades should consult the NXP errata documents for each mask revision. The part's NRND status means second-source planning is essential; qualify at least two same-family variants (VL275 and VF220) during design validation.
Informations de conformité
RoHS compliant and lead-free per NXP environmental declaration. AEC-Q100 not applicable - this part is not automotive-qualified. Halogen-free status not explicitly stated in provided data.
