HSP43168GC-45

Overview

The HSP43168GC-45 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 unit. The device supports programmable decimation ratios up to 16 and includes on-board storage for 32 sets of coefficients. It processes 10-bit data and coefficients via a standard microprocessor interface. The component operates within a commercial temperature range of 0°C to +70°C and is housed in a 100-pin plastic quad flat package (PQFP).

Feature Summary

• Dual independent 8-tap FIR filter architecture configurable as a single 16-tap filter.
• On-board storage capacity for 32 programmable coefficient sets.
• Programmable decimation functionality supporting ratios from 1 to 16.
• Standard microprocessor interface for control and data transfer.

Applications

• Quadrature and complex filtering applications.
• Image processing systems requiring convolution or correlation.
• Polyphase filtering structures.
• Adaptive filtering implementations.

Procurement Notes

Verify manufacturer lineage carefully, as Intersil was acquired by Renesas Electronics. Confirm RoHS compliance status and lead times with authorized distributors, noting that this specific variant may be discontinued or subject to last-time buy constraints. Ensure the 100 PQFP package matches the target PCB footprint and thermal requirements.

Selection Notes

Select this component when dual-channel FIR processing or high-speed digital filtering is required. Compare against other members of the HSP43168 family for speed grade differences (-45 vs -25). Verify that the 10-bit data width and 16-tap maximum configuration meet system specifications before finalizing the design.

Part Context

This component belongs to the HSP43168 series of dual FIR filters originally developed by Harris Semiconductor and later produced by Intersil and Renesas. The 'GC' suffix typically denotes commercial temperature range and plastic packaging, while '-45' indicates the speed grade. It serves as a specialized signal processing IC for high-performance communication and imaging applications.

Replacement Considerations

Direct replacements include the HSP43168GM-45 and HSP43168VC-45. Verify pinout compatibility and electrical characteristics across these variants. Note that newer generations may require firmware or hardware adjustments due to interface changes.