SPFMIR302

• High speed receiver up to 50 MBaud (25Mbit/s net data rate)
• TTL Data Output (Light to Logic Function)
• Network activity sensing during ZeroPower Mode (I_CC<10A)
• BUS Activity Status Output
• Good 650nm sensitivity for working in a low attenuation range of PMMA Fiber
• Low cost

*1) Optical power data are average values when using a MOST optical transmitter with _peak of 650 nm typical and measured at the end of a plastic optical fiber with metal insert.
*2) It is proposed to use the OptoLyzer4MOST, MOST Optical Network Analyzer, described in: http://www.oasis.de (with MOST Data @44.1KHz FS) or Standard BER Measuring Equipment running with 45 MBaud (BER 10-9 with 27-1 word length).
*3) The values are determined by locking a OS8104 in Slave-mode to the signal.

The 4-pin SPFMIR302 (MIR3 02) is a highly integrated CMOS IC (Bigfoot™) combined with a high speed PIN - diode designed to receive up to
25Mbit/s optical data which is bi-phase coded at up to 50Mbaud and convert this optical data to a TTL
compatible data stream.

This high performance, low cost, SPFMIR302 consists of a low noise transimpedance amplifier and comparator in the data path. A timer circuit puts the
part into a low power mode if optical data is not received for 10s (typ.). During the low power mode, the PIN diode is still being observed and if activity is
detected, Bigfoot will resume full power operation within 3.5ms (typ.).

A STATUS-pin indicates if modulated light is received (Light on -> STATUS = low). With the STATUS-pin the power supply of the whole SPFMIR302 can be
switched ON.