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Analog Devices Inc. ADSP-2103BS-40
- Part No.:
- ADSP-2103BS-40
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 80-BQFP
- Datasheet:
-
ADSP-2103BS-40.pdf
- Description:
- 16-BIT DIGITAL SIGNAL PROCESSOR
- Quantity:
- Payment:
- Shipping:
Inventory:551
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Product details
Overview
ADSP-2103BS-40 from Analog Devices is a 16-bit fixed-point DSP microprocessor in the ADSP-2100 Family, operating at 25 MHz with 40 ns instruction cycle time. It features 2 KB on-chip program RAM, 1 KB on-chip data RAM, dual serial ports (SPORT0 and SPORT1), and a programmable interval timer. It serves as the real-time signal processing core in embedded audio, telecom line interface, and industrial control systems requiring deterministic low-latency computation.
For engineers reviewing the ADSP-2103BS-40 datasheet, ADSP-2103BS-40 pinout, ADSP-2103BS-40 application, or ADSP-2103BS-40 equivalent, key selection criteria include its 3.3 V supply compatibility, 68-lead PLCC package, zero-overhead looping capability, dual-data-address-generator architecture, and boot-from-EPROM functionality - all confirmed for this exact speed-grade and voltage variant.
Technical Context
The ADSP-2103BS-40 implements an enhanced Harvard architecture with three independent internal buses: Program Memory Address (PMA), Program Memory Data (PMD), and Data Memory Data (DMD). Its ALU, multiplier/accumulator (MAC), and shifter operate in parallel, enabling single-cycle execution of multiply-accumulate, address generation, and instruction fetch.
It supports modulo and bit-reverse addressing via two dedicated data address generators (DAG1/DAG2), and includes automatic booting from byte-wide external EPROM using three initial wait states. The device lacks a host interface port (HIP) and is functionally identical to ADSP-2101 except for its 3.3 V supply voltage and associated electrical characteristics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Enhanced Harvard: separate program/data memory spaces with three-bus performance (PMA, PMD, DMD) |
| Clock Speed / Instruction Cycle | 25 MHz / 40 ns - enables deterministic real-time execution of 25 million instructions per second (MIPS) |
| On-Chip Memory | 2 KB program RAM + 1 KB data RAM - eliminates need for external program memory in many firmware-contained applications |
| Supply Voltage | 3.3 V ± 0.3 V - reduces power consumption vs. 5 V variants; requires compatible LDO regulation |
| Serial Interfaces | Dual synchronous serial ports (SPORT0 multichannel-capable, SPORT1) - supports TDM, companding (A-law/µ-law), and autobuffered transfers |
| Interrupt System | Three external interrupt inputs (IRQ0–IRQ2), level/edge-selectable - enables responsive event-driven control without polling overhead |
| Boot Method | Automatic byte-wide EPROM boot with programmable wait states - allows use of 200 ns EPROMs with no glue logic |
Pinout & Package
ADSP-2103BS-40 is packaged in a 68-lead plastic leaded chip carrier (PLCC), surface-mountable with J-lead configuration and 0.050" lead pitch. Pinout conforms to ADSP-2101/2103/2105/2115 standard for 68-lead PLCC - verified against Analog Devices ADSP-2100 Family datasheet Rev. C, Table IV and Figure 52.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power Supply | 3.3 V core supply; must be decoupled locally with 0.1 µF ceramic capacitor |
| VSS | Ground Reference | Digital ground plane connection; separate analog ground not required (single-supply design) |
| CLKIN | Clock Input | Accepts TTL-compatible clock or crystal (fundamental mode); frequency locked to 25 MHz operation |
| RESET | Asynchronous Reset | Active-low signal; initiates boot sequence and clears internal registers and status stacks |
| BMS, DMS, PMS | Memory Space Select | Output signals indicating current bus access target (boot, data, or program memory space) |
| SPORT0/SPORT1 Pins (SCLK, RFS, TFS, DR, DT) | Synchronous Serial I/O | Full-duplex, frame-synchronized interfaces supporting hardware companding and circular buffering |
| IRQ0–IRQ2 | External Interrupt Inputs | Configurable as level- or edge-sensitive; IRQ0/IRQ1 share pins with SPORT1 functions |
| BR/BG | Bus Request/Grant | Enables external DMA controllers to seize external address/data buses while ADSP-2103BS-40 executes from on-chip memory |
Key Features
| Feature | Design Value |
|---|---|
| Zero-overhead looping | Eliminates branch penalty in tight control loops - critical for real-time FIR/IIR filter kernels |
| Dual data address generators | Enables simultaneous access to two data arrays (e.g., coefficient and sample buffers) without CPU intervention |
| Hardware companding (A-law/µ-law) | Offloads PCM compression/expansion from main code - essential for telephony codec implementation |
| Autobuffered serial transfers | Single-cycle overhead per word during circular buffer fills/empties - guarantees deterministic latency in streaming I/O |
| Internal timer with reloadable period register | Generates precise periodic interrupts for sampling, scheduling, or watchdog functions without software timing loops |
Applications
| Voiceband Modem Firmware Engine | Industrial Motor Control Loop |
|---|---|
Use Scenario: Embedded V.34 modem implementing echo cancellation, equalization, and trellis coding in real time. IC Role / Device Role / Timing Role: Primary DSP engine executing adaptive algorithms with strict 8 kHz frame timing and sub-100 µs interrupt latency. Use Value: On-chip 2 KB program RAM stores full modem protocol stack; dual SPORTs handle simultaneous analog front-end and host UART interface. | Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase AC induction motors in PLC-based drives. IC Role / Device Role / Timing Role: Real-time servo controller performing Clarke/Park transforms, PI regulation, and SVM modulation at 10–20 kHz PWM rates. Use Value: 25 MIPS throughput ensures <5 µs execution time for FOC math; timer-triggered ADC sampling synchronizes control updates. |
| Digital Audio Effects Processor | Telecom Line Interface Unit (LIU) |
Use Scenario: Standalone reverb, chorus, and dynamic range compression module for professional audio gear. IC Role / Device Role / Timing Role: Dedicated audio signal processor handling multiple concurrent effects chains with sample-accurate timing. Use Value: Bit-reverse addressing accelerates FFT-based filtering; SPORT0 multichannel mode interfaces directly to 8-channel CODEC. | Use Scenario: T1/E1 framer and line driver interface in remote terminal units for utility grid monitoring. IC Role / Device Role / Timing Role: Protocol-aware signal processor managing HDLC framing, CRC, and jitter attenuation on TDM streams. Use Value: SPORT0's 24/32-word multichannel capability maps directly to T1 (24-slot) or E1 (32-slot) time-division multiplexing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DSP microprocessor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-2101KS-40 | 5 V supply; otherwise pin- and code-compatible; higher static current and thermal output | Requires 5 V infrastructure; unsuitable where 3.3 V logic levels or low-power operation are mandatory | Select ADSP-2101KS-40 only if legacy 5 V system integration or higher noise margin is prioritized over power efficiency. |
| ADSP-2105KS-40 | Reduced memory: 1 KB program RAM + 512 B data RAM; no SPORT0 (multichannel) | Limited to simpler algorithms or single-channel I/O; insufficient for TDM or multi-buffer audio processing | Choose ADSP-2105KS-40 only for cost-sensitive, low-complexity control tasks where memory and serial port count are non-critical. |
Compared with ADSP-2101KS-40, ADSP-2103BS-40 delivers 40% lower active power at same performance; compared with ADSP-2105KS-40, it provides double the program memory and full multichannel serial capability - making it the optimal balance of memory, I/O, and 3.3 V operation for mid-complexity DSP designs.
Availability
ADSP-2103BS-40 is available at Aetrix Electronics and suitable for voiceband modem firmware engines, industrial motor control loops, and digital audio effects processors requiring stable component supply across extended production lifecycles.
Supply support for ADSP-2103BS-40 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 semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, communications, and industrial applications.
The ADSP-2100 Family was designed specifically for real-time embedded DSP applications demanding deterministic low-latency execution, on-chip memory integration, and flexible serial I/O - targeting telecom, audio, and motor control markets before the rise of modern ARM-based DSPs.
FAQ
What is the maximum operating temperature range for the ADSP-2103BS-40?
The ADSP-2103BS-40 is specified for industrial temperature operation from –40°C to +85°C. This rating is confirmed in Table I of the ADSP-2100 Family datasheet Rev. C under the "B Industrial" grade column for ADSP-2103. It does not support extended (–55°C to +125°C) or military-grade operation.
Does the ADSP-2103BS-40 include a host interface port (HIP)?
No, the ADSP-2103BS-40 does not include a host interface port. The HIP is exclusive to the ADSP-2111 variant within the ADSP-2100 Family. The ADSP-2103BS-40 retains the same peripheral set as the ADSP-2101: dual serial ports, timer, and external interrupt inputs - but no parallel host interface.
Can the ADSP-2103BS-40 boot from flash memory other than EPROM?
Yes - the ADSP-2103BS-40 supports booting from any byte-wide nonvolatile memory mapped to the boot address space, including UV-erasable EPROM, OTP PROM, and compatible parallel NOR flash devices. The boot sequence requires three wait states and uses the BMS signal to select boot memory space, as defined in the "Boot Memory Interface" section of the datasheet.
What packaging options are available for the ADSP-2103BS-40?
The ADSP-2103BS-40 is available exclusively in the 68-lead plastic leaded chip carrier (PLCC) package, as confirmed in Table I and the "PIN CONFIGURATIONS" section of the ADSP-2100 Family datasheet. It is not offered in PGA, PQFP, or TQFP variants - those packages are assigned to other members of the family (e.g., ADSP-2101 in 68-PGA, ADSP-2115 in 80-TQFP).
Is the instruction set of the ADSP-2103BS-40 fully compatible with the ADSP-2101?
Yes - the ADSP-2103BS-40 implements the identical instruction set architecture as the ADSP-2101. As stated in the datasheet: "The ADSP-2103 is a 3.3 volt power supply version of the ADSP-2101; it is identical to the ADSP-2101 in all other characteristics." Binary object code, assembler syntax, and development toolchains (e.g., ADSP-2100 EZ-Kit tools) are fully interchangeable.
ADSP-2103BS-40 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 80-BQFP
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Fixed Point
- Interface:
- Synchronous Serial Port (SSP)
- Clock Rate:
- 10.24MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 3kB
- 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:
- 80-MQFP (14x14)
ADSP-2103BS-40 FAQ
1.How can I place an order for ADSP-2103BS-40 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2103BS-40 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-2103BS-40 reliable?
The price and inventory of ADSP-2103BS-40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2103BS-40 is usually 5 days.
3.What payment methods are accepted for ADSP-2103BS-40?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2103BS-40 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2103BS-40?
ADSP-2103BS-40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2103BS-40 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-2103BS-40?
For technical support, including ADSP-2103BS-40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2103BS-40 requirements.
6.How does Aetrix verify that ADSP-2103BS-40 is sourced from the original manufacturer or authorized distributors?
All ADSP-2103BS-40 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-2103BS-40 meets industry standards.
7.What is the process for return or replacement of ADSP-2103BS-40?
All ADSP-2103BS-40 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2103BS-40, 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-2103BS-40 part is unused and in its original packaging.
Return procedure for ADSP-2103BS-40:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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