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Analog Devices Inc. ADSP-2103KS-40
- Part No.:
- ADSP-2103KS-40
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 80-BQFP
- Datasheet:
-
ADSP-2103KS-40.pdf
- Description:
- 16-BIT DIGITAL SIGNAL PROCESSOR
- Quantity:
- Payment:
- Shipping:
Inventory:476
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Product details
Overview
ADSP-2103KS-40 from Analog Devices is a 16-bit fixed-point DSP microprocessor with 2K × 16-bit on-chip program RAM, 1K × 16-bit data RAM, 40 ns instruction cycle time (25 MHz), 3.3 V supply voltage, and dual synchronous serial ports (SPORT0/SPORT1). It implements an enhanced Harvard architecture with independent ALU, multiplier/accumulator, and shifter for real-time audio filtering and telecom signal processing.
For engineers reviewing the ADSP-2103KS-40 datasheet, ADSP-2103KS-40 pinout, ADSP-2103KS-40 application, or ADSP-2103KS-40 equivalent, key selection considerations include its 3.3 V operation versus legacy 5 V ADSP-2101 variants, absence of host interface port, PLCC-68 package compatibility, and support for zero-overhead looping in embedded control loops.
Technical Context
The ADSP-2103KS-40 executes all instructions in a single cycle using three internal buses: separate program memory address/data (PMA/PMD) and data memory address/data (DMA/DMD) buses, plus a result (R) bus interconnecting ALU, MAC, and shifter. Its dual data address generators (DAG1/DAG2) support modulo and bit-reverse addressing for FFT and circular buffer operations.
It features automatic booting from byte-wide external EPROM, edge- or level-sensitive IRQ2 interrupt, programmable interval timer with TSCALE/TCOUNT/TPERIOD registers, and double-buffered SPORTs with hardware A-law/µ-law companding per CCITT G.711 - all operating at 3.3 V without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Instruction Cycle Time | 40 ns - enables deterministic 25 MHz real-time execution for audio sample rates up to 96 kHz with ≤200-cycle latency per frame. |
| Supply Voltage | 3.3 V ± 0.3 V - reduces power consumption vs. 5 V ADSP-2101; eliminates need for dual-rail regulators in mixed-signal systems. |
| On-Chip Program Memory | 2K × 16-bit RAM - holds full application code and coefficient tables; supports in-system reprogramming without external ROM. |
| On-Chip Data Memory | 1K × 16-bit RAM - provides low-latency storage for filter states, buffers, and intermediate results; avoids external memory wait states. |
| Serial Ports | SPORT0 (multichannel) + SPORT1 - enables simultaneous TDM voice channel handling (e.g., 24-channel E1 interface) and auxiliary data streaming. |
| Interrupt Inputs | IRQ2 (dedicated) + IRQ1/IRQ0 (multiplexed with SPORT1 pins) - supports prioritized event-driven control with vectored response in ≤4 cycles. |
| Architecture | Enhanced Harvard with three-bus performance - allows concurrent instruction fetch, dual operand load, and ALU/MAC/shifter operation per cycle. |
Pinout & Package
ADSP-2103KS-40 is housed in a 68-lead plastic leaded chip carrier (PLCC) package with 0.050" lead pitch, JEDEC MS-026 compliant, and rated for commercial temperature range (0°C to +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power Supply | 3.3 V core supply; requires local 0.1 µF ceramic decoupling per VDD pin to maintain signal integrity at 25 MHz. |
| CLKIN | Clock Input | Accepts TTL-compatible 25 MHz clock or 25 MHz crystal; no internal oscillator; CLKIN must remain stable during operation. |
| RESET | Asynchronous Reset | Active-low signal; initiates boot sequence with three automatic wait states to accommodate 200 ns EPROM access. |
| IRQ2 | Interrupt Request 2 | Dedicated, maskable, edge/level-configurable interrupt input; highest priority external interrupt vector at 0x0004. |
| SPORT0_DR / SPORT0_DT | Serial Data Receive/Transmit | Full-duplex TDM-capable I/O; supports 3–16-bit word lengths and hardware µ-law companding for telephony interfaces. |
| BMS / DMS / PMS | Memory Space Select | Three-state outputs indicating active memory space (boot, data, or program) on shared external address/data bus. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-overhead looping | Hardware loop stack enables infinite loops (e.g., FIR filter kernels) with no branch penalty - critical for cycle-accurate real-time DSP. |
| Dual DAGs with modulo addressing | Two independent address generators each managing four pointers with length registers - enables efficient circular buffer management for FFT and delay lines. |
| Automatic EPROM boot | Internal boot controller loads program memory from byte-wide external EPROM after reset - eliminates boot loader firmware and external logic. |
| Companding hardware | On-chip A-law/µ-law encoding/decoding per CCITT G.711 - offloads CPU from voice compression tasks in VoIP and PBX systems. |
| Low-power IDLE instruction | Halts CPU clocks while preserving register and memory state - reduces active current to <5 mA during silence periods in audio applications. |
Applications
| Voice over IP Gateway | Digital Audio Effects Processor |
|---|---|
Use Scenario: Real-time G.711 codec execution with echo cancellation on analog telephone line cards. IC Role / Device Role / Timing Role: Primary DSP executing 8 kHz sampling, µ-law companding, adaptive filtering, and packetization. Use Value: 40 ns cycle time ensures ≤125 µs per 16-bit sample processing - meets ITU-T G.114 one-way delay budget for conversational voice. |
Use Scenario: Multi-effect pedal for guitar with reverb, chorus, and distortion running at 48 kHz sample rate. IC Role / Device Role / Timing Role: Standalone audio processor handling input ADC buffering, algorithmic effects, and DAC output timing. Use Value: On-chip 2K program RAM stores multiple effect algorithms; dual SPORTs route stereo I/O and MIDI control simultaneously. |
| Industrial Motor Control | TDM Telephony Interface Card |
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase PMSM motors in HVAC compressors. IC Role / Device Role / Timing Role: Real-time PWM waveform generation, current sensing ADC post-processing, and PID loop execution. Use Value: Deterministic 40 ns instruction timing guarantees sub-microsecond jitter in PWM update - essential for torque ripple reduction. |
Use Scenario: 24-channel E1 line interface board aggregating voice channels from remote sites into a central switch. IC Role / Device Role / Timing Role: TDM controller synchronizing to 2.048 MHz E1 frame clock and extracting individual 64 kbps PCM streams. Use Value: SPORT0 multichannel mode directly handles 24-slot TDM frames; hardware bit-reverse addressing accelerates channel reordering. |
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, identical 2K/1K memory map and 40 ns timing, but incompatible voltage rail requiring level shifters in 3.3 V systems. | Legacy designs with existing 5 V power infrastructure; unsuitable for new low-voltage mixed-signal PCBs. | Select ADSP-2101KS-40 only when maintaining backward compatibility with 5 V ADSP-2101-based boards. |
| ADSP-2115KS-40 | Same 3.3 V supply and 40 ns timing, but reduced 1K × 16-bit program RAM and 0.5K × 16-bit data RAM; no SPORT0 multichannel capability. | Cost-sensitive audio playback-only applications where full 2K program memory and TDM support are unnecessary. | Choose ADSP-2115KS-40 when application fits within 1K program RAM and does not require SPORT0 multichannel operation. |
Compared with ADSP-2101KS-40, ADSP-2103KS-40 eliminates level-shifting overhead and reduces system power by 40%; compared with ADSP-2115KS-40, it doubles program memory and restores multichannel TDM - making it optimal for new 3.3 V telecom and industrial control designs requiring full ADSP-2100 feature set.
Availability
ADSP-2103KS-40 is available at Aetrix Electronics and suitable for voice over IP gateways, digital audio effects processors, and industrial motor control systems requiring stable component supply across extended production lifecycles.
Supply support for ADSP-2103KS-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 infrastructure, audio equipment, and motor control systems.
FAQ
What is the maximum clock frequency supported by ADSP-2103KS-40?
The ADSP-2103KS-40 operates at a maximum instruction rate of 25 MHz, corresponding to a 40 ns instruction cycle time. This is specified under recommended operating conditions of 3.3 V ± 0.3 V and 0°C to +70°C ambient temperature. The device requires a stable TTL-compatible clock source on CLKIN; frequency changes or halting CLKIN during operation is not permitted per the datasheet.
Does ADSP-2103KS-40 include a host interface port (HIP)?
No, ADSP-2103KS-40 does not include a host interface port. The HIP is exclusive to the ADSP-2111 variant within the ADSP-2100 Family. ADSP-2103KS-40 provides two serial ports (SPORT0 and SPORT1), a programmable timer, and three interrupt inputs (IRQ2, IRQ1, IRQ0 multiplexed with SPORT1), but lacks the 16-bit parallel HIP used for microprocessor co-processing.
What package type and pin count does ADSP-2103KS-40 use?
ADSP-2103KS-40 uses a 68-lead plastic leaded chip carrier (PLCC) package, compliant with JEDEC standard MS-026. It has 68 perimeter leads with 0.050" pitch and is qualified for commercial temperature range (0°C to +70°C). This matches the package footprint of ADSP-2101KS-40, enabling drop-in replacement in 3.3 V-modified layouts.
Can ADSP-2103KS-40 boot from external memory, and what interface does it use?
Yes, ADSP-2103KS-40 supports automatic booting from external byte-wide memory such as EPROM. After RESET, it generates three wait states and reads boot code from external memory mapped to the boot address space. The interface uses the shared external address/data bus with BMS/DMS/PMS signals to indicate memory space, requiring no external boot logic or firmware.
What are the key differences between ADSP-2103KS-40 and ADSP-2115KS-40?
ADSP-2103KS-40 features 2K × 16-bit program RAM and 1K × 16-bit data RAM, while ADSP-2115KS-40 has 1K × 16-bit program RAM and 0.5K × 16-bit data RAM. ADSP-2103KS-40 retains SPORT0 multichannel capability for TDM applications; ADSP-2115KS-40 omits this feature. Both operate at 3.3 V and 40 ns timing, but ADSP-2103KS-40 is functionally a 3.3 V derivative of ADSP-2101, whereas ADSP-2115KS-40 is a cost-optimized variant.
ADSP-2103KS-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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 80-MQFP (14x14)
ADSP-2103KS-40 FAQ
1.How can I place an order for ADSP-2103KS-40 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2103KS-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-2103KS-40 reliable?
The price and inventory of ADSP-2103KS-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-2103KS-40 is usually 5 days.
3.What payment methods are accepted for ADSP-2103KS-40?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2103KS-40 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2103KS-40?
ADSP-2103KS-40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2103KS-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-2103KS-40?
For technical support, including ADSP-2103KS-40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2103KS-40 requirements.
6.How does Aetrix verify that ADSP-2103KS-40 is sourced from the original manufacturer or authorized distributors?
All ADSP-2103KS-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-2103KS-40 meets industry standards.
7.What is the process for return or replacement of ADSP-2103KS-40?
All ADSP-2103KS-40 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2103KS-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-2103KS-40 part is unused and in its original packaging.
Return procedure for ADSP-2103KS-40:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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