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Analog Devices Inc. ADSP-2185MKCA-300
- Part No.:
- ADSP-2185MKCA-300
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 144-LFBGA
- Datasheet:
-
ADSP-2185MKCA-300.pdf
- Description:
- IC DSP CONTROLLER 16BIT 144MBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,027
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Product details
Overview
ADSP-2185MKCA-300 from Analog Devices is a 24-bit fixed-point DSP microcomputer optimized for real-time signal processing, featuring 16K × 24-bit program RAM, 16K × 16-bit data RAM, dual synchronous serial ports (SPORT0/SPORT1), 16-bit internal DMA port, and 13.3 ns instruction cycle time at 2.5 V. It executes all instructions in a single cycle and supports zero-overhead looping for audio codec, telecom, and industrial control applications.
For engineers reviewing the ADSP-2185MKCA-300 datasheet, ADSP-2185MKCA-300 pinout, ADSP-2185MKCA-300 application, or ADSP-2185MKCA-300 equivalent, key selection criteria include on-chip memory configuration (24-bit PM/16-bit DM), dual SPORT support with hardware companding, 100-lead LQFP package compatibility, and ICE-Port™ debug interface integration for in-system emulation.
Technical Context
The ADSP-2185MKCA-300 implements the ADSP-2100 base architecture with three independent computational units-ALU, MAC, and shifter-enabling parallel operand fetches via 3-bus architecture. Its dual DAGs support circular buffering and modulo addressing for efficient FIR/IIR filter execution.
It operates in Full Memory Mode (Mode C = 0) or Host Mode (Mode C = 1), with configurable external bus interface supporting 4 MB byte memory space, programmable wait states, and IDMA port access to on-chip RAM. Serial ports provide frame-synchronous I/O with A-law/µ-law companding per CCITT G.711.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Instruction Cycle Time | 13.3 ns @ 2.5 V - enables 75 MIPS sustained throughput for real-time audio sample processing |
| Program Memory | 16K × 24-bit RAM - stores both instructions and constants; supports overlay loading from external byte memory |
| Data Memory | 16K × 16-bit RAM - dedicated space for coefficients, buffers, and intermediate results with dual-operand access |
| Serial Ports | 2 × bidirectional SPORTs - each with independent framing, internal clock generation, and hardware companding |
| Internal DMA Port | 16-bit IDMA - provides glueless, high-speed access to on-chip RAM without CPU intervention |
| Power-Down Recovery | 200 CLKIN cycles - enables low-power operation in portable systems while maintaining fast wake-up latency |
| Interrupt Sources | 11 total (6 external + 5 internal) - includes edge/level-sensitive IRQ2/IRQE, timer, SPORT, and BDMA interrupts |
Pinout & Package
ADSP-2185MKCA-300 is packaged in a 100-lead LQFP (ST-100) with 0.5 mm pitch, compatible with standard surface-mount assembly processes. Pin functions are mode-dependent: Full Memory Mode uses A13:A0 and D23:D0 for external memory interfacing, while Host Mode repurposes pins for 16-bit IDMA address/data multiplexing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Asynchronous processor reset input | Asserted low to initialize registers, clear memory pointers, and force boot sequence from external EPROM or IDMA |
| CLKIN / XTAL | Clock source input | Accepts 2.5 V CMOS clock or 3–20 MHz crystal; determines core timing and serial port baud rates |
| A13:A0 | Address output (Full Memory Mode) | Drives external memory address bus for 4 MB program/data/byte/I/O space decoding |
| D23:D0 | Bidirectional data bus (Full Memory Mode) | Transfers 24-bit program words or 16-bit data words; upper 8 bits serve as byte memory address in BDMA mode |
| SPORT0 / SPORT1 | Synchronous serial I/O pairs | Each includes SCLK, RFS, TFS, DR, DT - supports full-duplex TDM, frame sync, and µ-law/A-law companding |
| PF0–PF7 | Programmable flag I/O | 8 pins configurable as inputs/outputs; used for system signaling, handshaking, or interrupt extension |
| EZ-Port (9-pin) | ICE-Port™ emulation interface | Enables non-intrusive debugging, breakpoint insertion, and register/memory inspection without target board modification |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle instruction execution | Every ALU/MAC/shifter operation completes in one 13.3 ns cycle - eliminates pipeline stalls in tight control loops |
| Dual data address generators (DAG1/DAG2) | Each maintains four post-modified pointers with length registers - enables simultaneous access to two circular buffers for FFT or convolution |
| Zero-overhead looping | Hardware loop counters and stack eliminate branch penalties - critical for deterministic real-time filter execution |
| Byte DMA controller (BDMA) | Transfers data between external byte memory and on-chip RAM without CPU involvement - offloads memory management overhead |
| Programmable interval timer | 16-bit TCOUNT decrements at TSCALE-scaled rate; generates periodic interrupts for sample rate timing or task scheduling |
| Flexible interrupt masking | IMASK register allows per-interrupt enable/disable - supports prioritized real-time response to SPORT, timer, or external events |
Applications
| Audio Codec Interface | Telecom Channel Bank |
|---|---|
|
Use Scenario: Real-time stereo audio processing with AD73322 codec on EZ-KIT Lite evaluation platform. IC Role / Device Role / Timing Role: Primary DSP engine executing FIR filters, AGC, and companding; synchronizes to codec LRCLK and BCLK via SPORT0. Use Value: On-chip 16K × 24-bit program RAM stores optimized filter kernels; dual SPORTs handle simultaneous input/output streams without external FIFOs. |
Use Scenario: 32-channel T1/E1 line card performing echo cancellation and voice compression in central office equipment. IC Role / Device Role / Timing Role: Dedicated channel processor per TDM timeslot; SPORT1 configured for multichannel receive/transmit with 24-word buffer. Use Value: Hardware µ-law companding reduces host CPU load; 13.3 ns cycle time ensures sub-125 µs processing latency per channel. |
| Industrial Motor Control | Medical Ultrasound Beamforming |
|
Use Scenario: Closed-loop PMSM motor drive using PWM generation and current sensing feedback. IC Role / Device Role / Timing Role: Real-time observer and PI controller; timer triggers ADC sampling and PWM update at 20 kHz. Use Value: Dual DAGs manage rotating coordinate transforms and lookup tables simultaneously; on-chip RAM avoids external memory access delays. |
Use Scenario: Digital beamformer processing 128-element transducer array data in portable ultrasound systems. IC Role / Device Role / Timing Role: Delay-and-sum processor applying time-varying coefficients to RF samples; SPORT0 receives ADC data, SPORT1 outputs processed beams. Use Value: 75 MIPS throughput handles 16-bit × 128 × 100 kHz sample rate; power-down mode extends battery life during idle scan periods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DSP microcomputer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-2189MKSTZ-120 | Higher clock speed (120 MHz), 144-ball Mini-BGA, no byte DMA port, adds UART emulation capability | Better suited for compute-intensive tasks requiring >100 MIPS; lacks BDMA for legacy EPROM booting | Select when higher throughput is required and external byte memory interface is unnecessary |
| TMS320VC5402PGE100 | 100 MHz C54x core, 16K × 16-bit RAM, McBSP serial ports, lower power consumption, different instruction set | Requires code migration; McBSP lacks built-in A-law/µ-law, needs software companding | Choose for TI ecosystem compatibility or where lower active power (<120 mW) is critical |
Compared with ADSP-2185MKCA-300, ADSP-2189MKSTZ-120 delivers higher performance but sacrifices byte-memory boot flexibility, while TMS320VC5402PGE100 offers lower power and TI toolchain integration at the cost of architectural divergence and added software porting effort.
Availability
ADSP-2185MKCA-300 is available at Aetrix Electronics and suitable for audio codec interfaces, telecom channel banks, industrial motor controllers, medical ultrasound systems, and embedded signal analyzers requiring stable component supply across long-lifecycle designs.
Supply support for ADSP-2185MKCA-300 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The ADSP-2185MKCA-300 belongs to the ADSP-2100 family of fixed-point DSP microcomputers designed for cost-sensitive, real-time embedded signal processing applications where deterministic latency, on-chip memory integration, and low-power operation are essential.
FAQ
What is the maximum operating frequency of the ADSP-2185MKCA-300?
The ADSP-2185MKCA-300 has a guaranteed 13.3 ns instruction cycle time at 2.5 V, corresponding to a maximum sustained operating frequency of 75 MHz. This timing is validated across commercial temperature range (0°C to +70°C) and specified in the Electrical Characteristics table of the official Analog Devices datasheet Rev. 0. The ADSP-2185MKCA-300 does not support overclocking beyond this rating.
Does the ADSP-2185MKCA-300 support booting from external memory?
Yes, the ADSP-2185MKCA-300 supports automatic booting from byte-wide external memory such as EPROM or flash via its Byte DMA (BDMA) port. 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, and the ADSP-2185MKCA-300 also supports IDMA port booting in Host Mode.
How many serial ports does the ADSP-2185MKCA-300 have, and what protocols do they support?
The ADSP-2185MKCA-300 integrates two fully independent synchronous serial ports: SPORT0 and SPORT1. Each supports frame-synchronous communication with programmable word length (3–16 bits), hardware A-law and µ-law companding per CCITT G.711, internal/external clock generation, and multichannel TDM modes. SPORT0 supports 24/32-word TDM receive/transmit; SPORT1 can be reconfigured for dual IRQ signals.
What package type is used for the ADSP-2185MKCA-300?
The ADSP-2185MKCA-300 is supplied in a 100-lead LQFP (Low-Profile Quad Flat Package) with 0.5 mm lead pitch, designated ST-100 outline. This package is RoHS-compliant, thermally enhanced for embedded applications, and pin-compatible with other ADSP-2185M variants in the same LQFP configuration. It is not offered in Mini-BGA for this specific speed grade.
Is the ADSP-2185MKCA-300 compatible with Analog Devices' EZ-ICE emulator?
Yes, the ADSP-2185MKCA-300 includes on-chip ICE-Port™ emulation support with a dedicated 14-pin EZ-Port interface. This allows full in-circuit debugging-including breakpoints, register inspection, memory read/write, and instruction-level emulation-without removing the ADSP-2185MKCA-300 from the target board or requiring adapter hardware.
ADSP-2185MKCA-300 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- ADSP-21xx
- Package/Case:
- 144-LFBGA
- Packaging:
- Bag
- Product Status:
- Obsolete
- Type:
- Fixed Point
- Interface:
- Host Interface, Serial Port
- Clock Rate:
- 75MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 80kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 2.50V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 144-MiniBGA (10x10)
ADSP-2185MKCA-300 FAQ
1.How can I place an order for ADSP-2185MKCA-300 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2185MKCA-300 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-2185MKCA-300 reliable?
The price and inventory of ADSP-2185MKCA-300 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2185MKCA-300 is usually 5 days.
3.What payment methods are accepted for ADSP-2185MKCA-300?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2185MKCA-300 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2185MKCA-300?
ADSP-2185MKCA-300 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2185MKCA-300 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-2185MKCA-300?
For technical support, including ADSP-2185MKCA-300 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2185MKCA-300 requirements.
6.How does Aetrix verify that ADSP-2185MKCA-300 is sourced from the original manufacturer or authorized distributors?
All ADSP-2185MKCA-300 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-2185MKCA-300 meets industry standards.
7.What is the process for return or replacement of ADSP-2185MKCA-300?
All ADSP-2185MKCA-300 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2185MKCA-300, 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-2185MKCA-300 part is unused and in its original packaging.
Return procedure for ADSP-2185MKCA-300:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADSP-2185MKCA-300 Tags
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