Broadcom SP000063860

SFH551/1-1 receiver is a transimpedance amplifier with an integrated photodiode and TTL open-collector output stage. The active area of the detector, combined with a molded microlens, enables highly efficient coupling from the end of a polymer optical fiber. This receiver supports data transfer rates up to 5 MBd and is compatible with the Avago SFH757 emitter diode. The SFH551/1-1 is fully DC-coupled, eliminating the need for line coding. An internal Schmitt trigger ensures stable output states across the entire dynamic range. When light with intensity above the threshold level is coupled into the SFH551/1-1, the electrical output will be logic "LOW," and vice versa. With noise-free Vcc and GND, undefined output signals cannot occur. However, the SFH551/1-1 must not be used without shielding from ambient light. If ambient light may reach the threshold level, the SFH551/1-1V variant should be selected. The plastic connector housing of the SFH V series provides perfect shielding against ambient light. SFH series components are optimized for easy coupling — no fiber stripping is required; simply insert the cleaved fiber into the selected SFH component.

• Bipolar IC with open-collector output
• Digital output, fully TTL-compatible
• Sensitive in visible and near-infrared range
• Data rate ≤ 5MBd
• Low switching threshold
• 2.2mm aperture compatible with standard 980/1000/2200μm plastic optical fiber
• No fiber stripping required
• Molded microlens for high-efficiency coupling
• Connector with locking screw
• Opaque housing for interference-free transmission
• Flexible positioning of transmitter and receiver
• No crosstalk
• Compatible with auto-insertion and wave soldering
• Supplied in tube packaging

• Consumer electronics
• Power electronics
• Optical networking