Broadcom HEDS-9700#F50 SIP-4-2.54mm Optical Encoder Module

The HEDS-9700 module is designed for a single 5V DC power supply. While some specifications list a wider range, the core design and typical application circuit are optimized for 5V operation to ensure proper LED drive and TTL-compatible output signal levels.

This module provides two-channel digital quadrature outputs (Channel A and Channel B). These signals are TTL-compatible, making them directly readable by microcontrollers, FPGA inputs, or digital counters to determine both the direction and magnitude of movement.

For rotary position sensing, you need to pair the HEDS-9700 module with a compatible codewheel that interrupts its optical beam. The standard configuration is designed for use with an 11mm optical radius codewheel. The module must be mounted opposite the codewheel with a precise air gap as specified in the datasheet.

The module's design, featuring a highly collimated LED light source and a unique photodetector array, provides significant tolerance to both radial and axial mounting misalignment. This reduces the precision required during mechanical assembly and improves system reliability.

Yes, the HEDS-9700 can be used for linear displacement sensing when paired with a linear codestrip instead of a rotary codewheel. The same optical detection principle applies, translating linear motion into the standard two-channel quadrature digital output.