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Analog Devices Inc. ADSP-2184BSTZ-160
- Part No.:
- ADSP-2184BSTZ-160
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP
- Datasheet:
-
ADSP-2184BSTZ-160.pdf
- Description:
- IC DSP CONTROLLER 16BIT 100LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADSP-2184BSTZ-160 from Analog Devices is a 16-bit fixed-point DSP microcomputer optimized for real-time signal processing in embedded audio, telecom, and industrial control systems. It delivers 40 MIPS sustained performance with 25 ns instruction cycle time, integrates 4K × 24-bit on-chip program RAM and 4K × 16-bit data RAM, and supports dual serial ports (SPORT0/SPORT1) with hardware companding for voice-band applications.
For engineers reviewing the ADSP-2184BSTZ-160 datasheet, ADSP-2184BSTZ-160 pinout, ADSP-2184BSTZ-160 application, or ADSP-2184BSTZ-160 equivalent, key selection criteria include its 100-lead LQFP package, 200-cycle power-down recovery, ICE-Port™ debug interface, 16-bit internal DMA port, and ADSP-2100 family code compatibility for legacy migration.
Technical Context
The ADSP-2184BSTZ-160 implements a three-bus Harvard architecture with independent ALU, MAC, and barrel shifter units operating on 16-bit data paths, enabling single-cycle execution of multifunction instructions (e.g., dual operand fetch + computation). Its program sequencer provides zero-overhead looping and conditional branching, while two dedicated DAGs support automatic modulo addressing for circular buffers.
System interface flexibility is achieved via mode-selectable memory interfaces: Full Memory Mode (14-bit address, 24-bit data) enables 4 MB byte memory access and I/O space; Host Mode configures a 16-bit IDMA port with address/data multiplexing. Serial ports support frame-synchronized or frameless operation, 3–16-bit word lengths, and CCITT G.711 A-law/µ-law companding.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Instruction Cycle Time | 25 ns - Enables deterministic 40 MIPS sustained throughput for hard real-time DSP kernels. |
| On-Chip Memory | 20 KB total: 4K × 24-bit program RAM + 4K × 16-bit data RAM - Eliminates external program memory for compact firmware and reduces latency-critical data access. |
| Serial Ports | Two double-buffered SPORTs - Support simultaneous full-duplex audio streaming (e.g., stereo codec interface) with hardware companding and programmable framing. |
| Power-Down Recovery | 200 CLKIN cycles - Allows rapid wake-up from ultra-low-power state for battery-powered voice recorders or sensor nodes. |
| Interrupt System | 6 external interrupts (configurable edge/level) + 5 internal sources - Enables responsive event-driven control in motor drives or communication protocols. |
| Package | 100-lead LQFP (14 × 14 mm, 0.5 mm pitch) - Compatible with standard SMT assembly and provides sufficient I/O for mixed-signal system integration. |
| ICE-Port Interface | 14-pin dedicated emulation port - Enables non-intrusive in-system debugging without requiring socketed processors or trace probes. |
Pinout & Package
ADSP-2184BSTZ-160 is housed in a 100-lead Low-Profile Quad Flat Package (LQFP) with 0.5 mm lead pitch and exposed thermal pad. Pin functionality is mode-dependent: Full Memory Mode uses A13–A0 and D23–D0 for external memory expansion; Host Mode repurposes pins as IAD15–IAD0, IWR, IRD, and IACK for 16-bit IDMA interfacing. Serial port, flag, and interrupt pins are software-configurable during runtime.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Asynchronous processor reset input | Asserted low to initialize registers, clear stacks, and force boot sequence from external EPROM or IDMA port. |
| CLKIN / XTAL | External clock or crystal oscillator input | Accepts 20 MHz TTL clock (for 40 MHz core) or 40 MHz crystal - determines fundamental timing reference for all peripherals and DMA transfers. |
| SPORT0 (SCLK0, RFS0, TFS0, DT0, DR0) | Synchronous serial port 0 interface | Configurable for I²S, TDM, or custom frame formats - supports 3–16-bit words and hardware µ-law compression for telephony codecs. |
| SPORT1 (SCLK1, RFS1, TFS1, DT1, DR1) | Synchronous serial port 1 interface | May be reconfigured as IRQ0/IRQ1 inputs and FI/FO flags - enables flexible peripheral signaling without external logic. |
| PWD / PWDACK | Hardware power-down control | PWD low initiates 200-cycle dormant state; PWDACK asserts when internal clocks halt - critical for energy-constrained portable devices. |
| PF0–PF7 | Programmable flag I/O pins | 13 total flags (8 bidirectional + 3 outputs) - used for GPIO, status signaling, or interrupt generation without consuming dedicated interrupt lines. |
| EZ-Port (9 pins) | ICE-Port™ emulator interface | Provides JTAG-like debug access for breakpoints, register inspection, and memory read/write - requires no target board modifications. |
Key Features
| Feature | Design Value |
|---|---|
| Three independent computational units (ALU, MAC, shifter) | Enables true parallelism: one instruction can perform multiply-accumulate, logical shift, and ALU operation simultaneously - essential for FIR/IIR filter pipelines. |
| Dual data address generators (DAG1/DAG2) | Each maintains four auto-modified pointers with length registers - supports zero-overhead circular buffering for FFTs, sample buffers, and ping-pong DMA transfers. |
| 16-bit internal DMA port (IDMA) | Direct 16-bit access to on-chip RAM from host processors - eliminates glue logic for coprocessor architectures (e.g., ARM + DSP subsystems). |
| Byte DMA port (BDMA) | 4 MB addressable byte memory space with programmable wait states - allows cost-effective off-chip storage of large coefficient tables or program overlays. |
| Power management modes | Three distinct low-power states (Power-Down, Idle, Slow Idle) - extends battery life in portable medical monitors or voice recorders without sacrificing interrupt responsiveness. |
| ADSP-2100 family instruction set compatibility | Binary-compatible with ADSP-2101/2105/2106 - enables reuse of legacy DSP code and toolchains, reducing development time for upgraded designs. |
Applications
| Voice Communication Terminal | Digital Audio Processing System |
|---|---|
|
Use Scenario: Real-time echo cancellation and DTMF detection in VoIP gateways or IP phones. IC Role / Device Role / Timing Role: Primary DSP executing adaptive filtering algorithms with sub-100 µs latency constraints. Use Value: Dual SPORTs handle simultaneous PCM audio streams; hardware companding reduces bandwidth by 50% for G.711-compliant voice transport. |
Use Scenario: Multi-channel audio effects processing in studio mixers or active loudspeakers. IC Role / Device Role / Timing Role: Dedicated audio co-processor managing FIR equalization, crossover networks, and dynamic range compression. Use Value: 40 MIPS throughput ensures real-time execution of 256-tap filters per channel; on-chip RAM avoids external memory bottlenecks for coefficient storage. |
| Industrial Motor Control | Portable Medical Signal Analyzer |
|
Use Scenario: Closed-loop field-oriented control (FOC) of BLDC motors in factory automation equipment. IC Role / Device Role / Timing Role: Real-time controller performing PWM modulation, current sampling, and PID loop updates at 20 kHz. Use Value: Single-cycle context switching and zero-overhead loops guarantee deterministic 50 µs control loop timing; 13 flag pins interface directly to gate drivers and sensors. |
Use Scenario: Portable ECG/EEG device acquiring and analyzing bio-signals with onboard artifact rejection. IC Role / Device Role / Timing Role: Low-power signal processor executing QRS detection, noise filtering, and spectral analysis during battery operation. Use Value: 200-cycle power-down recovery enables burst-mode acquisition; ICE-Port allows clinical validation debugging without disassembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-point DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-2189MSTZ-160 | Enhanced version with 32K bytes on-chip RAM (8K × 24-bit PM + 8K × 16-bit DM), higher 160 MHz core clock, and additional timer resources. | Required for larger FFTs or multi-algorithm concurrent execution where ADSP-2184BSTZ-160's 20 KB memory is insufficient. | Select when memory bandwidth or algorithm complexity exceeds ADSP-2184BSTZ-160 limits; not pin-compatible due to different LQFP pinout and voltage requirements. |
| TMS320VC5402PGE100 | TI C54x-series 16-bit DSP with 128K × 16-bit RAM, enhanced DMA, and lower 1.8 V core voltage - but lacks integrated companding hardware and ICE-Port. | Suitable for high-volume consumer audio where cost-per-MIPS is prioritized over analog interface integration. | Choose for price-sensitive designs needing higher memory density; requires redesign of serial interface and debug infrastructure. |
Compared with ADSP-2184BSTZ-160, the ADSP-2189MSTZ-160 offers scalable memory for complex algorithms but demands PCB layout changes, while the TMS320VC5402PGE100 reduces BOM cost at the expense of voice-specific features and debug simplicity.
Availability
ADSP-2184BSTZ-160 is available at Aetrix Electronics and suitable for voice communication terminals, digital audio processing systems, industrial motor controllers, and portable medical analyzers requiring stable component supply across extended product lifecycles.
Supply support for ADSP-2184BSTZ-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 leader in high-performance analog, mixed-signal, and DSP technology, serving industrial, automotive, communications, and healthcare markets since 1965.
The ADSP-21xx family was designed specifically for cost-sensitive, low-power embedded DSP applications requiring real-time signal processing with minimal external components - targeting voice, audio, and control systems.
FAQ
What is the maximum external memory capacity supported by ADSP-2184BSTZ-160 in Full Memory Mode?
ADSP-2184BSTZ-160 supports up to 4 MB of byte-addressable external memory via its Byte DMA port in Full Memory Mode. This space is used for program overlays, coefficient tables, or data buffers, with programmable wait states accommodating slow EPROMs or SRAMs. The 14-bit address bus (A13–A0) and 24-bit data bus (D23–D0) enable direct access without external latching logic.
Does ADSP-2184BSTZ-160 support hardware-based audio companding, and which standards are implemented?
Yes, ADSP-2184BSTZ-160 includes dedicated hardware companding circuitry in both serial ports compliant with CCITT Recommendation G.711 for A-law and µ-law encoding/decoding. This enables real-time voice compression at 64 kbps without consuming CPU cycles, making it ideal for VoIP endpoints and telephony gateways where bandwidth efficiency is critical.
How does the ICE-Port™ interface on ADSP-2184BSTZ-160 differ from standard JTAG debug solutions?
The ICE-Port™ on ADSP-2184BSTZ-160 is a proprietary 14-pin interface optimized for non-intrusive in-circuit emulation, supporting full-speed execution, up to 20 breakpoints, and C-source-level debugging without halting peripherals. Unlike generic JTAG, it integrates tightly with Analog Devices' EZ-ICE hardware and requires no target board modifications - the ADSP-2184BSTZ-160 remains soldered during debug sessions.
Can ADSP-2184BSTZ-160 operate from a crystal oscillator, and what are the frequency requirements?
Yes, ADSP-2184BSTZ-160 operates from a crystal connected across CLKIN and XTAL pins. A 40 MHz fundamental-mode crystal yields a 20 MHz internal clock, producing the specified 25 ns instruction cycle time. Capacitor values depend on crystal load specifications but typically range from 12–22 pF; the oscillator automatically stabilizes within ~4096 cycles after power-up or wake-up from power-down.
What are the functional differences between Full Memory Mode and Host Mode on ADSP-2184BSTZ-160?
Full Memory Mode (Mode C = 0) configures ADSP-2184BSTZ-160 with independent 14-bit address and 24-bit data buses for maximum external memory expansion, supporting 4 MB byte memory and full I/O space. Host Mode (Mode C = 1) repurposes pins as a multiplexed 16-bit IDMA port with separate IWR/IRD controls - ideal for connecting to an ARM or FPGA host but limiting external addressing to A0 only.
ADSP-2184BSTZ-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:
- 5.00V
- Voltage - Core:
- 5.00V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-LQFP (14x14)
ADSP-2184BSTZ-160 FAQ
1.How can I place an order for ADSP-2184BSTZ-160 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2184BSTZ-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-2184BSTZ-160 reliable?
The price and inventory of ADSP-2184BSTZ-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-2184BSTZ-160 is usually 5 days.
3.What payment methods are accepted for ADSP-2184BSTZ-160?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2184BSTZ-160 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2184BSTZ-160?
ADSP-2184BSTZ-160 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2184BSTZ-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-2184BSTZ-160?
For technical support, including ADSP-2184BSTZ-160 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2184BSTZ-160 requirements.
6.How does Aetrix verify that ADSP-2184BSTZ-160 is sourced from the original manufacturer or authorized distributors?
All ADSP-2184BSTZ-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-2184BSTZ-160 meets industry standards.
7.What is the process for return or replacement of ADSP-2184BSTZ-160?
All ADSP-2184BSTZ-160 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2184BSTZ-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-2184BSTZ-160 part is unused and in its original packaging.
Return procedure for ADSP-2184BSTZ-160:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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