LS7083N-S

Overview

The LS7083N-S is a CMOS quadrature clock decoder manufactured by LSI/CSI, designed to convert incremental encoder signals into up/down count pulses. It accepts differential or single-ended A and B channel inputs from optical or magnetic encoders. The device operates within a voltage supply range of 3V to 12V for both analog and digital sections. Packaged in an 8-SOIC surface-mount case, it functions reliably across an operating temperature range of -20°C to +85°C. This component enables direct interfacing between incremental encoders and standard up/down counters.

Feature Summary

• Converts quadrature clock signals from incremental encoders into up/down count pulses
• Supports direct connection to standard up/down counter clock inputs
• Operates with a wide voltage supply range suitable for various logic levels

Applications

• Position control systems requiring incremental encoder integration
• Robotics motion control applications
• Industrial automation equipment utilizing standard counter interfaces

Procurement Notes

Verify the specific suffix 'S' indicates the SOIC-8 surface-mount package variant rather than the DIP version. Confirm the manufacturer designation as LSI/CSI or LSI Computer Systems to ensure component authenticity. Check datasheet specifications for input signal compatibility with your specific encoder type before procurement.

Selection Notes

Select this component when interfacing incremental encoders with standard up/down counters that require separate up and down clock inputs. Ensure the application environment falls within the specified -20°C to +85°C operating temperature range. Verify that the system power supply aligns with the 3V to 12V operational requirements for both analog and digital sections.

Part Context

The LS7083N-S belongs to the LSI/CSI family of incremental encoder interface ICs, specifically categorized as quadrature decoders. It complements other devices like the LS7183N and multi-mode counters such as the LS7366R. This series focuses on converting raw encoder quadrature signals into usable counting data for motion control architectures.

Replacement Considerations

The LS7083N (DIP package) serves as a pin-compatible alternative if through-hole mounting is required instead of surface-mount. Other LSI/CSI quadrature decoders may offer different input configurations but might not provide the same direct up/down counter interface capability.