NXP Semiconductors DSP56311VF150

Overview

DSP56311VF150 from Freescale Semiconductor is a 24-bit fixed-point digital signal processor (DSP) with a 150 MHz internal core clock, 1.8 V core supply, and 3.3 V I/O voltage. It integrates a DSP56300-compatible engine, 128 K × 24-bit on-chip RAM (configurable as 32 K program RAM + 48 K X/Y data RAM + 1024-word instruction cache), and an Enhanced Filter Coprocessor (EFCOP) enabling parallel 300 MMACS filtering. It targets echo cancellation and convolution-based algorithms in wireless infrastructure base stations.

For engineers reviewing the DSP56311VF150 datasheet, DSP56311VF150 pinout, DSP56311VF150 application, or DSP56311VF150 equivalent, key selection criteria include EFCOP-accelerated FIR/IIR filter throughput, 150 MHz core timing margin for real-time multi-channel processing, dual-voltage power domain isolation (VCCQL/VCCQH), and MAP-BGA package thermal performance in dense telecom boards.

Technical Context

The DSP56311VF150 implements a fully pipelined 24×24-bit MAC unit with two 56-bit accumulators and a 56-bit barrel shifter, executing one instruction per clock cycle. Its EFCOP operates synchronously at 150 MHz and supports real/complex FIR, DF-I/DF-II IIR, adaptive LMS filters, and 4-bit decimation - all independent of core execution flow.

Memory architecture includes programmable partitioning of 128 K × 24-bit RAM across program, X/Y data, and instruction cache spaces, plus 192 × 24-bit bootstrap ROM. The external memory expansion port supports up to 256 K × 24-bit program and two 256 K × 24-bit data spaces with glueless SRAM/DRAM interfacing up to 100 MHz.

Key Specifications

Pinout & Package

Molded Array Plastic Ball Grid Array (MAP-BGA) package with 256 solder balls, 1.27 mm pitch, and 17 mm × 17 mm body size. Designed for reflow soldering and thermal vias under die pad to manage 1.8 W typical power dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital signal processor applications.

Compared with ADSP-21161NKCAZ-150 and TMS320C6416TGLZA8, the DSP56311VF150 uniquely delivers deterministic 300 MMACS filtering performance with zero software overhead via EFCOP - critical for latency-constrained echo cancellation where core cycles must remain available for real-time control.

Availability

DSP56311VF150 is available at Aetrix Electronics and suitable for wireless infrastructure, IP telephony gateways, and DSLAM line cards requiring stable component supply across extended product lifecycles.

Supply support for DSP56311VF150 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

Freescale Semiconductor (now part of NXP Semiconductors) designed high-performance mixed-signal and digital processors for automotive, industrial, and networking markets.

The DSP56311VF150 belongs to the DSP56300 family - engineered specifically for cost-sensitive, high-channel-count wireless infrastructure applications demanding integrated memory and hardware-accelerated filtering.

FAQ

What is the maximum operating frequency of the DSP56311VF150 core?

The DSP56311VF150 operates with a 150 MHz internal core clock, achieved via its integrated PLL using an external crystal or clock source on EXTAL/XTAL. This yields a 6.67 ns instruction cycle time, and the EFCOP runs synchronously at the same 150 MHz rate to deliver 300 MMACS for filtering operations. The device is not rated for operation above 150 MHz.

Does the DSP56311VF150 support external memory expansion, and what interfaces are available?

Yes, the DSP56311VF150 supports external memory expansion through its Port A interface, providing an 18-bit address bus (A[0–17]), 24-bit data bus (D[0–23]), and dedicated control signals (RD, WR, AA[0–3], CAS, RAS[0–3]). It enables glueless connection to SRAM and DRAM up to 100 MHz, with chip select logic and an internal DRAM controller included.

How does the Enhanced Filter Coprocessor (EFCOP) in the DSP56311VF150 improve system performance?

The EFCOP in the DSP56311VF150 executes FIR, IIR, and adaptive filtering algorithms in parallel with the main DSP core - delivering up to 300 MMACS without consuming core cycles. This allows the DSP56311VF150 to maintain full 150 MMACS for control, protocol, and supervisory tasks while accelerating echo cancellation or channel equalization in real time.

What power supply requirements must be met for reliable operation of the DSP56311VF150?

The DSP56311VF150 requires seven isolated power domains: 1.8 V for core logic (VCCQL), 3.3 V for I/O (VCCQH), and separate 3.3 V supplies for address (VCCA), data (VCCD), bus control (VCCC), host interface (VCCH), and peripherals (VCCS). Each domain needs local decoupling capacitors, and VCCP/GNDP for the PLL must be ultra-low-impedance.

Is the DSP56311VF150 pin-compatible with other members of the DSP56300 family?

The DSP56311VF150 shares the same MAP-BGA package footprint and core signal definitions (e.g., A[0–17], D[0–23], EXTAL, RESET) with other DSP56300 family devices like the DSP56303 and DSP56309. However, peripheral signal assignments (e.g., ESSI, HI08, timer pins) and memory map configurations differ - board-level compatibility requires verification against specific variant datasheets.