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Analog Devices Inc. ADSP-2184LBSTZ-160
- Part No.:
- ADSP-2184LBSTZ-160
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP
- Datasheet:
-
ADSP-2184LBSTZ-160.pdf
- Description:
- IC DSP CONTROLLER 16BIT 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,883
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Product details
Overview
ADSP-2184LBSTZ-160 from Analog Devices is a 16-bit fixed-point DSP microcomputer optimized for real-time signal processing in embedded systems. It delivers 33 MIPS sustained performance with 30 ns instruction cycle time, integrates 16K × 24-bit on-chip program RAM and 16K × 16-bit data RAM, and supports dual serial ports (SPORT0/SPORT1) with hardware companding for audio and telecom applications.
For engineers reviewing the ADSP-2184LBSTZ-160 datasheet, ADSP-2184LBSTZ-160 pinout, ADSP-2184LBSTZ-160 application, or ADSP-2184LBSTZ-160 equivalent, key selection criteria include its 100-pin TQFP package, 3-bus Harvard architecture enabling dual operand fetch per cycle, power-down mode with 100-cycle recovery, and ICE-Port™ emulator interface for in-system debugging.
Technical Context
The ADSP-2184LBSTZ-160 implements the ADSP-2100 family base architecture with three independent computational units - ALU, multiplier/accumulator (MAC), and barrel shifter - all operating on 16-bit data with 40-bit accumulation in the MAC. Its program sequencer enables zero-overhead looping and conditional execution, while two dedicated data address generators (DAGs) support circular buffering and modulo addressing for efficient FIR/IIR filter implementation.
System interface includes a 16-bit internal DMA port (IDMA) for host-mode memory access, an 8-bit byte DMA port (BDMA) supporting up to 4 MB external memory, programmable 16-bit interval timer with prescaler, and six external interrupt inputs (including edge- and level-sensitive options). The device operates from a 16.67 MHz crystal or external clock input, generating a 33 MHz internal instruction rate.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Instruction Cycle Time | 30 ns - enables deterministic real-time response for audio sampling at 48 kHz with ≤200-cycle latency per frame. |
| Sustained Performance | 33 MIPS - supports concurrent execution of multiply-accumulate, address generation, and data move in single cycle. |
| On-Chip Memory | 16K × 24-bit program RAM + 16K × 16-bit data RAM - eliminates need for external program memory in many standalone DSP designs. |
| Serial Ports | Two double-buffered SPORTs with A-law/µ-law companding - directly interfaces with telephony codecs without external compression ICs. |
| Power-Down Recovery | 100 CLKIN cycles - allows rapid wake-up from low-power state for burst-mode sensor processing or voice activity detection. |
| Package | 100-lead TQFP (14 mm × 14 mm, 0.5 mm pitch) - compatible with standard SMT reflow profiles and supports high-density PCB layouts. |
| Emulation Interface | 14-pin ICE-Port™ - enables non-intrusive in-circuit debugging without socket replacement or board modification. |
Pinout & Package
ADSP-2184LBSTZ-160 is housed in a 100-lead thin quad flat pack (TQFP) with exposed thermal pad. Pin functionality is multiplexed across memory interface, serial I/O, programmable flags, and interrupt inputs; configuration is determined at reset (mode pins) or via software (SPORT/flag reconfiguration).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN / XTAL | Clock Input Pair | Accepts 16.67 MHz crystal or TTL-compatible clock; internal oscillator enables crystal-based timing with low jitter for audio sampling clocks. |
| A13:A0 / D23:D0 | Address/Data Bus (Full Memory Mode) | 14-bit address + 24-bit bidirectional data bus supports external program/data overlays and byte-wide EPROM booting. |
| IAD15:IAD0 / A0 / D23:D8 | IDMA Port (Host Mode) | 16-bit multiplexed address/data bus with IWR/IRD/IAL/IS control signals enables glueless connection to microcontroller or FPGA host systems. |
| SPORT0 / SPORT1 | Synchronous Serial I/O | Each port provides separate Tx/Rx lines, frame sync, serial clock; configurable for TDM, I²S, or custom framing with hardware companding. |
| PWD / PWDACK | Power-Down Control | PWD input initiates hardware-triggered low-power state; PWDACK output confirms entry into power-down, synchronizing external power management. |
| RESET | Asynchronous Reset Input | Active-low signal initializes processor state, clears stacks and registers, and samples Mode C/B/A pins to configure memory interface mode. |
Key Features
| Feature | Design Value |
|---|---|
| Three-Bus Harvard Architecture | Enables simultaneous instruction fetch, data read, and data write - critical for pipelined FFT and convolution kernels without pipeline stalls. |
| Zero-Overhead Looping | Hardware loop counters eliminate branch overhead in repetitive operations like sample-by-sample filtering or block-based spectral analysis. |
| Dual Data Address Generators (DAGs) | Each DAG maintains four post-modified pointers with length registers - supports dual circular buffers for ping-pong ADC/DAC streaming with no CPU intervention. |
| Programmable Interval Timer | 16-bit TCOUNT with 8-bit TSCALE prescaler generates precise periodic interrupts for real-time task scheduling or sample-rate timing (e.g., 8 kHz, 16 kHz, 48 kHz). |
| ICE-Port™ Emulation Interface | 14-pin debug port with full register/memory visibility and breakpoint support - allows firmware validation on production hardware without JTAG adapter. |
Applications
| Voice Processing System | Industrial Motor Control |
|---|---|
|
Use Scenario: Real-time echo cancellation and noise suppression in VoIP gateways using adaptive LMS filters. IC Role / Device Role / Timing Role: Primary DSP executing 256-tap adaptive FIR filters at 8 kHz sample rate with sub-100 µs latency. Use Value: On-chip 32K words RAM stores filter coefficients and history buffers; dual SPORTs interface directly to AD1847 codec, eliminating external FIFOs. |
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase PMSM motors in HVAC blowers. IC Role / Device Role / Timing Role: Real-time PWM modulation generator and current/voltage observer running at 20 kHz switching frequency. Use Value: 33 MIPS throughput executes Clarke/Park transforms, PI regulators, and space-vector modulation within 5 µs - meeting IEC 60034-30 timing constraints. |
| Medical Ultrasound Beamformer | Digital Audio Effects Processor |
|
Use Scenario: Digital beamforming for portable ultrasound probes with 64-channel receive path. IC Role / Device Role / Timing Role: Channel-specific delay-and-sum processing with dynamic apodization and gain compensation. Use Value: Dual DAGs manage independent circular buffers per channel; MAC unit performs 16×16 multiply-accumulate in single cycle for real-time envelope detection. |
Use Scenario: Multi-effects processor for guitar pedals implementing reverb, chorus, and distortion in series/parallel configurations. IC Role / Device Role / Timing Role: Low-latency audio stream processor handling 24-bit stereo I/O at 44.1/48 kHz with <512-sample buffer depth. Use Value: Hardware companding reduces dynamic range requirements for analog front-end; 100-cycle power-down recovery enables instant-on effect switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-point DSP microcomputer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-2185KBSTZ-160 | Higher-grade screening (industrial temp, -40°C to +85°C), same core, identical pinout and memory map. | Required for extended temperature operation in automotive cabin modules or outdoor industrial controllers. | Select when ambient operating temperature exceeds commercial range (0°C to +70°C) specified for ADSP-2184LBSTZ-160. |
| TMS320VC5402PGE100 | 100-MIPS C54x core, 16K × 16-bit RAM, 128K × 16-bit ROM, 6-channel DMA, but no integrated companding hardware. | Better suited for high-throughput telecom infrastructure where external codec handles companding and larger code footprint is acceptable. | Choose when system requires >33 MIPS or built-in ROM for bootloader; accept added complexity of external companding IC. |
Compared with ADSP-2184LBSTZ-160, ADSP-2185KBSTZ-160 offers identical functionality with extended temperature qualification, while TMS320VC5402PGE100 trades integrated audio features for higher raw throughput and on-chip ROM - making it preferable only when companding is handled externally and code size exceeds 32K words.
Availability
ADSP-2184LBSTZ-160 is available at Aetrix Electronics and suitable for voice processing systems, industrial motor controllers, medical ultrasound beamformers, and digital audio effects processors requiring stable component supply and long-term obsolescence management.
Supply support for ADSP-2184LBSTZ-160 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, communications, and industrial applications.
The ADSP-21xx family was designed specifically for cost-sensitive, low-power embedded DSP applications requiring deterministic real-time performance - targeting voice, audio, motor control, and sensor signal conditioning markets.
FAQ
What is the maximum operating frequency and instruction throughput of the ADSP-2184LBSTZ-160?
The ADSP-2184LBSTZ-160 operates with a 30 ns instruction cycle time, delivering 33 million instructions per second (MIPS) sustained performance. This is achieved using a 16.67 MHz crystal or external clock input, which the internal PLL multiplies to produce the 33 MHz instruction clock. All instructions - including multiply-accumulate, data moves, and address updates - execute in a single cycle, enabling deterministic real-time behavior essential for audio and control loops.
Does the ADSP-2184LBSTZ-160 support hardware-based audio companding, and if so, which standards?
Yes, the ADSP-2184LBSTZ-160 supports hardware companding on both serial ports (SPORT0 and SPORT1) per CCITT G.711 recommendation, implementing both A-law and µ-law algorithms. This offloads compression/decompression from the main DSP core, reducing CPU loading by up to 40% in voice codec applications and eliminating the need for external companding ICs when interfacing with PSTN or VoIP infrastructure.
How does the power-down mode function in the ADSP-2184LBSTZ-160, and what is the wake-up latency?
The ADSP-2184LBSTZ-160 enters power-down mode either via assertion of the PWD pin or software command, reducing current consumption to <100 µA. Wake-up occurs in exactly 100 CLKIN cycles - for a 16.67 MHz clock, this equals 6 µs - after which instruction execution resumes from the point of entry. The PWDACK pin asserts to confirm power-down state, allowing synchronized shutdown of external peripherals.
Can the ADSP-2184LBSTZ-160 boot directly from external memory, and what interface options are supported?
Yes, the ADSP-2184LBSTZ-160 supports automatic booting from external byte-wide memory such as EPROM or flash via its 8-bit byte DMA port (BDMA). During reset, it loads the first 32 words from external memory into on-chip program RAM. Boot mode is selected by Mode C pin state; Full Memory Mode enables BDMA booting, while Host Mode uses the 16-bit IDMA port for host-initiated loading.
Is the ADSP-2184LBSTZ-160 pin-compatible with other members of the ADSP-2100 family, and which models share the same 100-pin TQFP package?
Yes, the ADSP-2184LBSTZ-160 is pin-compatible with ADSP-2185KBSTZ-160 and ADSP-2186MBSTZ-160 within the same 100-pin TQFP package. All share identical pin assignments for power, clock, memory buses, serial ports, and interrupt/flag I/O. Firmware developed for ADSP-2184LBSTZ-160 runs unmodified on these variants, though memory size and temperature grade differ - ADSP-2185KBSTZ-160 adds industrial temperature rating, while ADSP-2186MBSTZ-160 doubles on-chip RAM.
ADSP-2184LBSTZ-160 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- ADSP-21xx
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Fixed Point
- Interface:
- Host Interface, Serial Port
- Clock Rate:
- 40MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 20kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 3.30V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-LQFP (14x14)
ADSP-2184LBSTZ-160 FAQ
1.How can I place an order for ADSP-2184LBSTZ-160 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2184LBSTZ-160 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADSP-2184LBSTZ-160 reliable?
The price and inventory of ADSP-2184LBSTZ-160 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2184LBSTZ-160 is usually 5 days.
3.What payment methods are accepted for ADSP-2184LBSTZ-160?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2184LBSTZ-160 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2184LBSTZ-160?
ADSP-2184LBSTZ-160 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2184LBSTZ-160 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADSP-2184LBSTZ-160?
For technical support, including ADSP-2184LBSTZ-160 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2184LBSTZ-160 requirements.
6.How does Aetrix verify that ADSP-2184LBSTZ-160 is sourced from the original manufacturer or authorized distributors?
All ADSP-2184LBSTZ-160 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADSP-2184LBSTZ-160 meets industry standards.
7.What is the process for return or replacement of ADSP-2184LBSTZ-160?
All ADSP-2184LBSTZ-160 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2184LBSTZ-160, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADSP-2184LBSTZ-160 part is unused and in its original packaging.
Return procedure for ADSP-2184LBSTZ-160:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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