DSP56311VL150

Digital Signal Processor Dsp Overview

The DSP56311 is a 24-bit digital signal processor from the DSP56300 family, designed for high-performance filtering and networking applications. It features a single-clock-cycle-per-instruction engine with up to 150 MMACS at a 150 MHz clock speed, reaching 300 MMACS when utilizing the Enhanced Filter Coprocessor (EFCOP). The device operates with a 1.8 V core and independent 3.3 V I/O power. Key architectural elements include a 24x24+56-bit MAC, 56-bit barrel shifter, instruction cache, and six-channel DMA controller. Internal memory includes configurable Program RAM, X/Y Data RAM, and an instruction cache, totaling 128 KB of RAM.

Digital Signal Processor Dsp Feature Summary

• Enhanced Filter Coprocessor (EFCOP) executes filter algorithms in parallel with the core, supporting FIR/IIR filters and LMS adaptive filtering.
• DSP56300 core compatible with highly parallel instruction set, featuring fully pipelined 24x24-bit MAC and 56-bit barrel shifter.
• Configurable internal memory architecture allowing flexible allocation between Program RAM, Instruction Cache, and X/Y Data RAM.
• Integrated peripherals including two ESSI ports, SCI, triple timer, HI08 host interface, and six-channel DMA.

Digital Signal Processor Dsp Applications

• Wireless and wireline infrastructure applications
• Multi-channel wireless local loop systems
• High-speed modem banks
• IP telephony
• Echo-cancellation and correlation algorithms

Digital Signal Processor Dsp Procurement Notes

Verify that the specific part number corresponds to the lead-free packaging variant, as Rev. 8 of the datasheet adds lead-free options. Confirm voltage requirements: 1.8 V for the core logic and 3.3 V for I/O drivers. Ensure adequate external decoupling capacitors are provided for all power inputs, particularly isolating the Quiet Core (VCCQL) power supply. Check RoHS compliance status if required by the manufacturing process.

Digital Signal Processor Dsp Selection Notes

Select this component when parallel filter processing is required to maintain channel throughput without impacting core performance. The EFCOP supports complex FIR, real FIR, and adaptive LMS filters. Consider the programmable memory split if application demands vary between program storage and data buffering. Ensure the design accommodates the MAP-BGA package and provides separate power domains for the core and I/O to meet electrical specifications.

Digital Signal Processor Dsp Part Context

The DSP56311 belongs to the Freescale (now NXP) DSP56300 family, which is code-compatible with the earlier DSP56000 core. This lineage ensures software portability for existing DSP56000 applications while offering enhanced performance through the integrated EFCOP and higher clock speeds up to 150 MHz. It serves as a specialized solution within the broader portfolio of digital signal processors targeting telecommunications and audio processing markets.

Digital Signal Processor Dsp Replacement Considerations

Direct pin-to-pin replacements are not explicitly listed in the provided documentation. Designers should evaluate other members of the DSP56300 family for compatibility, noting differences in memory size or peripheral sets. Verify that any substitute maintains the 24-bit data width and 150 MHz operational frequency requirements.