Analog Devices Inc. ADSP-2183KSTZ-160

Overview

ADSP-2183KSTZ-160 from Analog Devices is a 16-bit fixed-point DSP microcomputer optimized for real-time digital signal processing in audio, telecom, and industrial control systems. It delivers 52 MIPS sustained performance at 3.3 V with 19 ns instruction cycle time, integrates 16K × 24-bit program RAM and 16K × 16-bit data RAM, and features dual serial ports (SPORT0/SPORT1), 16-bit internal DMA port, byte DMA controller, and programmable 16-bit interval timer.

For engineers reviewing the ADSP-2183KSTZ-160 datasheet, ADSP-2183KSTZ-160 pinout, ADSP-2183KSTZ-160 application, or ADSP-2183KSTZ-160 equivalent, key selection considerations include on-chip memory configuration (dual-port RAM), low-power operation modes (power-down, idle, slow-idle), hardware companding support (A-law/µ-law per CCITT G.711), and ICE-Port™ emulator interface compatibility for in-system debugging.

Technical Context

The ADSP-2183KSTZ-160 implements the ADSP-2100 family base architecture with three independent computational units (ALU, MAC, shifter), two dedicated data address generators (DAG1/DAG2), and a zero-overhead program sequencer supporting conditional execution and nested loops. Its 3-bus Harvard architecture enables simultaneous dual operand fetches - one from program memory and one from data memory - in every instruction cycle.

It supports hardware-accelerated synchronous serial communication via two double-buffered SPORTs with frame sync, internal/external clock sourcing, and optional A-law/µ-law companding. The 16-bit internal DMA port provides direct access to on-chip RAM, while the byte DMA port addresses up to 4 MBytes of external byte-wide memory using 8 data lines as extended address bits.

Key Specifications

Pinout & Package

The ADSP-2183KSTZ-160 is packaged in a 128-lead LQFP (Leadless Quad Flat Package) with exposed thermal pad, RoHS-compliant, and rated for industrial temperature range (–40°C to +85°C). Pin functions are validated per Analog Devices ADSP-2183 Rev. C datasheet.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar DSP microcomputer applications.

Compared with ADSP-2183KSTZ-160, the ADSP-2189MSTZ-350 offers higher throughput in identical hardware footprint, while the TMS320C549PGE provides greater raw MIPS but lacks on-chip companding and requires external signal conditioning - making ADSP-2183KSTZ-160 optimal for compact, low-BOM voice-centric designs.

Availability

ADSP-2183KSTZ-160 is available at Aetrix Electronics and suitable for voice communication terminals, digital audio processing systems, industrial motor control modules, and medical signal acquisition units requiring stable component supply across extended product lifecycles.

Supply support for ADSP-2183KSTZ-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, founded in 1965 and headquartered in Wilmington, MA.

The ADSP-2183KSTZ-160 belongs to the ADSP-2100 family of single-chip DSP microcomputers designed for real-time embedded signal processing in resource-constrained, low-power environments - especially voice, audio, and control applications demanding deterministic latency and minimal external components.

FAQ

What is the maximum operating frequency and instruction cycle time of the ADSP-2183KSTZ-160?

The ADSP-2183KSTZ-160 operates with a 19 ns instruction cycle time, corresponding to a 26.32 MHz crystal input (or 52.64 MHz external clock applied to CLKIN). This yields 52 MIPS sustained performance. The device achieves single-cycle instruction execution across its full instruction set, including ALU, MAC, and shifter operations, with no penalty for dual operand fetches or memory accesses. All timing specifications assume 3.3 V supply and industrial temperature range (–40°C to +85°C).

Does the ADSP-2183KSTZ-160 support hardware-based A-law and µ-law companding?

Yes, the ADSP-2183KSTZ-160 integrates dedicated hardware companding circuitry in both SPORT0 and SPORT1, compliant with CCITT Recommendation G.711 for A-law and µ-law encoding/decoding. This capability operates transparently during serial data transfer without CPU intervention, eliminating the need for external codecs or software-based conversion routines. Companding is enabled per-port via control registers and applies to all data words transmitted or received through the configured SPORT.

How does the internal DMA (IDMA) port of the ADSP-2183KSTZ-160 differ from the byte DMA (BDMA) port?

The 16-bit internal DMA (IDMA) port provides high-speed, transparent access to on-chip program and data RAM using multiplexed address/data lines (IAD[15:0]) and dedicated control signals (IRD, IWR, IS, IAL, IACK). In contrast, the byte DMA (BDMA) port is an 8-bit interface that addresses up to 4 MBytes of external byte-wide memory (e.g., EPROM) by repurposing 8 data lines as extended address bits. IDMA enables zero-wait-state transfers between external peripherals and internal RAM; BDMA supports program overlays and data tables with programmable wait states.

Can the ADSP-2183KSTZ-160 enter and recover from power-down mode in under 1 µs?

No - the ADSP-2183KSTZ-160 requires a minimum of 300 CLKIN cycles to recover from hardware-initiated power-down mode. At its rated 26.32 MHz crystal frequency, this equates to approximately 11.4 µs. Recovery time is deterministic and independent of software state. The PWDACK pin asserts low upon entry into power-down and returns high after recovery completion. During recovery, the processor executes no instructions; the 300-cycle delay ensures internal clock stabilization and register restoration.

Is the ADSP-2183KSTZ-160 pin-compatible with other ADSP-2100 family members like the ADSP-2181 or ADSP-2185?

No - the ADSP-2183KSTZ-160 is not pin-compatible with ADSP-2181 or ADSP-2185. While all share the ADSP-2100 instruction set architecture and functional blocks, the ADSP-2183KSTZ-160 uses a 128-lead LQFP package with unique pin assignments for its dual SPORTs, IDMA port, and expanded flag I/O. The ADSP-2181 uses 100-pin PQFP and lacks IDMA/BDMA; the ADSP-2185 uses 144-ball Mini-BGA with different ballout. Code compatibility exists, but PCB layout and peripheral interfacing require device-specific design.