SFH551 Datasheet | Avago Technologies

Description The SFH551/1-1 receiver is a transimpedance amplifier with an integrated photodiode and TTL open-collector output stage. The active area of this detector bined with the molded microlens gives an efficient coupling from the end of the polymer optical fiber. This receiver enables data rates up to 5 MBd and works with the Avago SFH757 transmitter diode. The SFH551/1-1 is fully DC coupled and therefore no line code is needed. The internal Schmitt trigger ensures stable output states over the whole dynamic range. If light with intensity above the threshold level is coupled into the SFH551/1-1, the electrical output will be logical “low” and vice versa. With noisefree Vcc and GND, an undefined output signal is not possible. Nevertheless, the SFH551/1-1 must not be used without shielding from ambient light. If ambient light could reach the threshold level, the SFH551/1-1V ponent should be chosen. The plastic connector housing of the SFH V-series shields the ambient light perfectly. SFH series ponents are optimized for easy coupling. No fiber stripping is required; just insert the cut fiber into the selected SFH ponent. Features -  Bipolar IC with open-collector output -  Digital output, full TTL patible -  Sensitive in visible and near IR range -  Transfer rate ≤ 5MBd -  Low switching threshold -  2.2mm aperture holds standard 980/1000/2200μm plastic fibers -  No fiber stripping required -  Molded microlens for efficient coupling Plastic Direct Fiber Connector housing (V-housing) -  Locking screw attached to the connector -  Interference-free transmission by the light-tight housing -  Transmitter and receiver can be positioned flexibly -  No cross talk -  Auto insertable and wave solderable -  Supplied in tubes Ordering Information Applications - Household electronics - Power electronics - Optical networks Application Literature AN # Description General information about the SFH series with Selection Guide and remendations regarding System Planning and...