HSP43168JC-40

Overview

The HSP43168JC-40 is a dual finite impulse response (FIR) filter manufactured by Harris Corporation, part of the HSP43168 series. It integrates two independent 8-tap FIR filters that can be configured as a single 16-tap filter. The device supports programmable decimation ratios from 1 to 16 and includes on-board storage for 32 sets of coefficients. It processes 10-bit data and coefficients, offering compute power for quadrature filtering, complex filtering, 2-D convolution, and interpolating/decimating applications. The component features a standard microprocessor interface and operates within a commercial temperature range.

Feature Summary

• Dual independent 8-tap FIR filter architecture configurable as a single 16-tap unit
• On-board storage capacity for 32 programmable coefficient sets
• Supports programmable decimation up to 16x with programmable output rounding
• Standard microprocessor interface for control and configuration

Applications

• Quadrature and complex signal filtering
• Image processing and 2-D convolution
• Polyphase and adaptive filtering systems

Procurement Notes

Verify manufacturer origin carefully, as the HSP43168 series was originally developed by Harris Semiconductor, later acquired by Intersil, and subsequently by Renesas Electronics. Confirm the specific suffix 'JC-40' against official datasheets to ensure correct speed grade and package type. Check current availability status, as older components may be discontinued or available only through secondary markets.

Selection Notes

Select this component when dual-channel FIR processing or high-speed decimation is required without external DSP resources. Ensure system compatibility with the 10-bit data width and standard microprocessor interface timing. Verify that the required number of coefficient sets fits within the 32-set onboard memory limit. Consider thermal requirements if operating near the upper end of the commercial temperature range.

Part Context

The HSP43168 belongs to a family of dedicated analog-domain FIR filter chips designed for high-speed signal processing tasks. Originally produced by Harris Semiconductor, the product line transitioned through Intersil to Renesas Electronics. The 'JC-40' designation typically indicates a specific speed bin and commercial temperature rating within the broader HSP43168 product family.

Replacement Considerations

Direct pin-compatible replacements are limited due to the specialized nature of the component. Potential alternatives include other dedicated FIR filter ICs from manufacturers like Analog Devices or Texas Instruments, though architectural differences in coefficient loading and interface protocols must be evaluated. Software-defined radio solutions using FPGAs may serve as functional substitutes for flexible designs.