ADSP-2189NKSTZ-320 - 80 MIPS 16-bit Fixed-Point DSP | Analog Devices
Référence : ADSP-2189NKSTZ-320 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $16.5 | $16,50 |
| 10 | $14.85 | $148,50 |
| 100 | $12.4 | $1 240,00 |
| 500 | $10.95 | $5 475,00 |
| 1 000 | $9.2 | $9 200,00 |
ADSP-2189NKSTZ-320 Présentation
A digital signal processor is a specialized microprocessor whose architecture is optimized for the mathematical operations common to signal processing - multiply-accumulate (MAC) loops, finite/infinite impulse response (FIR/IIR) filters, and Fast Fourier Transforms (FFT). The ADSP-218xN family sits in the hierarchy of microcomputer -> DSP -> fixed-point DSP, with code compatibility across all ADSP-21xx family members. This lineage enables legacy code reuse while providing modernized on-chip memory density.
Key features of the ADSP-2189NKSTZ-320 include a single-cycle instruction execution, dual-purpose flags for I/O control, a serial port with auto-buffering, and an integrated 16-bit timer. The device operates from a 3.3 V I/O supply and an internal 1.8 V core supply generated by an on-chip voltage regulator, simplifying board-level power design. The wide operating temperature range of 0C to +70C supports commercial-grade embedded designs.
The architecture combines three computational units (ALU, MAC, barrel shifter), two data address generators, and a program sequencer, delivering deterministic instruction-cycle timing ideal for real-time control loops. The integrated memory and Harvard-style bus structure minimize external component count and reduce overall BOM cost in space-constrained designs.
Typical applications include industrial motor control, audio processing, telecommunications baseband processing, speech recognition front-ends, and instrumentation. The 80 MIPS performance class is well-suited to FIR filtering, adaptive noise cancellation, and motor-control algorithms. The ADSP-2189NKSTZ-320 is pin-compatible with other ADSP-218xN family members, enabling design scalability by simply swapping the silicon for higher or lower memory density without PCB rework.
When designing with this DSP, ensure the host interface logic is 3.3 V tolerant and provide proper decoupling on the analog supply pins. The VisualDSP++ development toolchain supports all ADSP-21xx family members, providing assembler, linker, simulator, and C-compiler support for legacy code bases.
Alternatives de remplacement direct pour ADSP-2189NKSTZ-320 — 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 :
ADSP-2189NKST-320
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADSP-2189MKSTZ-320
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADSP-2189NKCA-320
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
ADSP-2187NBSTZ-320
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADSP-2186MBSTZ-266
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ADSP-2189NKSTZ-320 Spécifications
| Product Type | 16-bit Fixed-Point Digital Signal Processor (DSP) |
| Series | ADSP-218xN |
| Core Clock Speed | 80 MHz |
| Instruction Throughput | 80 MIPS |
| Program Memory (PM) RAM | 32 Kwords (16-bit) |
| Data Memory (DM) RAM | 48 Kwords (16-bit) |
| Instruction Cycle Time | 12.5 ns |
| Core Supply Voltage | 1.8 V (internal regulator) |
| I/O Supply Voltage | 3.3 V |
| Température de fonctionnement | 0C to +70C (commercial) |
| Boîtier | 100-pin LQFP (14x14 mm) |
| Type de montage | Surface Mount |
| Serial Ports | 2 (with auto-buffering) |
| Timers | 16-bit programmable |
| Statut RoHS | Compliant |
Guide de configuration des broches du ADSP-2189NKSTZ-320 100-pin lqfp (14x14 mm)
Configuration des broches du ADSP-2189NKSTZ-320 (boîtier 100-pin lqfp (14x14 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 ADSP-2189NKSTZ-320.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ADSP-2189NKSTZ-320 convient pour 6 applications: Industrial Motor Control, Audio Processing & Effects, Speech Recognition Front-End, Telecommunications Baseband, Instrumentation & Measurement, Automotive Audio & Noise Cancellation.
Industrial Motor Control
The ADSP-2189NKSTZ-320 fits industrial motor control because its 80 MIPS deterministic throughput executes field-oriented control (FOC) algorithms and PI control loops within microsecond budgets. With 32 Kwords PM RAM and 48 Kwords DM RAM on-chip, it stores control tables and ADC sample buffers without external memory. The dual serial ports handle encoder feedback and PWM update streams simultaneously, while the 16-bit timer generates precise sample-rate interrupts. Designers can implement sensorless vector control or trapezoidal commutation at switching frequencies up to 20 kHz. Compared to a general MCU, the ADSP-2189N's hardware MAC unit accelerates Park/Clarke transforms by an order of magnitude. The LQFP-100 footprint integrates into industrial drive PCBs alongside power-stage gate drivers.
Recommandé
Audio Processing & Effects
Audio effects processing benefits from the ADSP-2189NKSTZ-320's 80 MIPS throughput and 48 Kwords of data memory, sufficient for stereo 48 kHz sample-rate biquad filter chains, reverb tails, and FFT-based spectral analysis. The integrated serial port with auto-buffering streams I2S or left-justified audio data directly to external DACs and ADCs without CPU overhead. The Harvard architecture separates coefficient fetches from data samples, eliminating fetch stalls in real-time DSP loops. Engineers can implement parametric EQ, dynamics compression, and noise suppression in single-cycle MAC instructions. The 3.3 V I/O simplifies interfacing with modern audio codecs. Compared to software-DSP on a microcontroller, the ADSP-2189N delivers deterministic audio latency critical for live performance gear.
Recommandé
Speech Recognition Front-End
Speech recognition front-ends use the ADSP-2189NKSTZ-320 for feature extraction: Mel-Frequency Cepstral Coefficient (MFCC) computation, voice activity detection, and pre-emphasis filtering at 8-16 kHz sample rates. The 80 MIPS budget supports real-time cepstral analysis on continuous microphone input. On-chip 48 Kwords DM RAM stores frame buffers and lookup tables for windowing functions, eliminating external memory fetches that would break real-time guarantees. The auto-buffering serial port interfaces directly to MEMS microphones or audio ADCs. Compared to running MFCC on a host CPU, the dedicated DSP offloads compute-intensive front-end processing, freeing the host for grammar matching and language modeling.
Recommandé
Telecommunications Baseband
Baseband processing in telecom systems leverages the ADSP-2189NKSTZ-320's 80 MIPS performance for modulation/demodulation, channel equalization, and error-correction decoding. Fixed-point arithmetic with 16-bit precision handles symbol-rate DSP up to several hundred kbps. The Harvard bus architecture supports simultaneous instruction and dual-data fetches needed for Viterbi decoders and FFT-based channel estimators. The dual serial ports connect to radio modem front-ends and host processors in parallel. On-chip 32 Kwords of program memory stores complete waveform libraries for protocols like DTMF detection or FSK modem operation. The 3.3 V I/O interfaces cleanly to modern RF transceiver ICs and baseband ASICs.
Recommandé
Instrumentation & Measurement
Test and measurement instruments use the ADSP-2189NKSTZ-320 for real-time DSP functions: FIR filtering of ADC samples, FFT-based spectrum analysis, and lock-in amplifier demodulation. The deterministic 12.5 ns instruction cycle enables precise windowed FFT computation on streaming ADC data. The 48 Kwords data memory holds time-domain sample buffers for spectral analysis. The two serial ports interface with high-resolution ADCs and DACs while a host port connects to the instrument's microcontroller. The 3.3 V I/O and integrated 1.8 V core regulator simplify power design in dense instrumentation PCBs. The ADSP-2189N provides the deterministic latency required for triggered acquisition and synchronized measurements.
Recommandé
Automotive Audio & Noise Cancellation
Active noise cancellation in automotive cabins leverages the ADSP-2189NKSTZ-320's 80 MIPS throughput to compute adaptive FIR filter coefficients in real time across multiple microphone channels. The 48 Kwords of DM RAM stores adaptive filter state and reference signal buffers. Dual serial ports handle multiple MEMS microphone inputs and speaker DAC outputs simultaneously. The Harvard architecture accelerates LMS or RLS adaptation algorithms critical for canceling road and engine noise. Compared to a generic MCU running the same algorithms, the ADSP-2189N's MAC unit delivers 5-10x throughput, supporting more aggressive noise reduction across wider bandwidths. The LQFP-100 package fits standard automotive ECU PCB footprints.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ADSP-2189NKSTZ-320 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ADSP-2189NKST-320 | ADSP-2189MKSTZ-320 | ADSP-2189NKCA-320 | ADSP-2187NBSTZ-320 | ADSP-2186MBSTZ-266 |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | LQFP-100 (14x14 mm) | LQFP-100 - same | LQFP-100 - same | LQFP-100 - same | LQFP-100 - same | LQFP-100 - same |
| Core Clock Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 66 MHz |
| Instruction Throughput | 80 MIPS | 80 MIPS | 80 MIPS | 80 MIPS | 80 MIPS | 75 MIPS (-6%) |
| Core Supply Voltage | 1.8 V | 1.8 V | 2.5 V (+39%) | 1.8 V | 1.8 V | 2.5 V |
| RoHS Compliance | Yes (Z suffix) | No (leaded) | Yes | Yes | Yes | Yes |
Principaux différenciateurs
- Largest on-chip memory in the ADSP-218xN family (vs ADSP-2187NBSTZ-320)
- Higher instruction throughput than legacy ADSP-2186 (vs ADSP-2186MBSTZ-266)
- RoHS-compliant lead-free packaging (vs ADSP-2189NKST-320)
Notes de conception
Provide a clean 3.3 V supply on VDD with bulk decoupling (10 uF tantalum + 0.1 uF ceramic) placed within 25 mm of the supply pins. The internal 1.8 V regulator requires external bypass capacitors on the VDDP and VDDINT pins - typically 1 uF ceramic plus 0.1 uF ceramic. Power sequencing is not required because the internal regulator handles core supply startup. Estimated: Total quiescent current is approximately 50-80 mA typical at 80 MHz in active mode, with standby currents dropping to single-digit mA when entering low-power idle states via the SPORT or external interrupt.
Route high-speed serial port signals (SCLK, RFS, TFS, DR, DT) as matched-length differential pairs when interfacing to external ADCs or codecs to preserve timing margins. Keep analog and digital ground planes separated, joining only at the DSP's AGND-DGND pins to avoid digital switching noise coupling into sensitive analog references. Place a 4-layer PCB stack-up with continuous ground plane directly beneath the LQFP-100 footprint to provide thermal spreading for the 1-2 W typical dissipation. Estimated: At 80 MHz continuous operation, expect junction temperature rise of 20-30 C above ambient with adequate copper pour.
Do not apply 3.3 V signals to the DSP before the supply rails have stabilized - the ADSP-2189N lacks built-in I/O tolerance protection and latch-up can occur if inputs are driven while VDD is below 1 V. Ensure emulator cable lengths are kept under 150 mm to avoid JTAG signal integrity issues during debug. When migrating from the older ADSP-2189M (2.5 V core) variant, verify that any external voltage references and analog companion parts still operate correctly at the lower 1.8 V internal core supply used by the ADSP-2189N.
Informations de conformité
Z-suffix indicates RoHS-compliant lead-free packaging. Not AEC-Q100 qualified; for automotive applications consider ADSP-2189NKSTZ-320 automotive-grade variants or external qualification. REACH compliance per Analog Devices product page.
