AFCT-5815BZ Broadcom

AFCT-5815xZ 155 Mb/s Single Mode Fiber Optic Transceiver for ATM, SONET OC-3/SDH STM-1 Data Sheet Description Features RoHS compliant General Long reach SONET OC3 SDH STM1 (L1.1) compliant The AFCT5815xZ transceiver is a high performance, cost Multisourced 1 x 9 pin configuration effective module for serial optical data communications Interchangeable with LED multisourced 1 x 9 trans applications specified for a data rate of 155 Mb/s. It is ceivers designed to provide a SONET/SDH compliant link for long Unconditionally eyesafe laser IEC 825/CDRH Class 1 reach links operating at +3.3 V or +5.0 V input voltage. compliant Two Temperature Ranges: Transmitter Section 0C to +70C AFCT5815BZ/DZ The transmitter section of the AFCT5815xZ consists of a 40C t o +85C AFCT5815AZ/CZ 1300 nm InGaAsP laser in an eyesafe optical subassembly Single +3.3 V or +5.0 V power supply operation (OSA) which mates to the fiber cable. The laser OSA is Wave solder and aqueous wash process compatible driven by a custom IC which converts differential input Considerable EMI margin to FCC Class B PECL logic signals, ECL referenced (shifted) to +3.3 V or +5 V supply, into an analog laser drive current. Applications Receiver Section ATM 155 Mb/s links for LAN backbone switches and routers The receiver utilizes an InGaAs PIN photodiode mounted ATM 155 Mb/s links for WAN core, edge and access together with a transimpedance preamplifier IC in an OSA. switches and routers This OSA is connected to a circuit providing post amplifi ATM 155 Mb/s links for add/drop multiplexers and cation quantization, and optical signal detection. demultiplexers SONET OC3/SDH STM1 interconnectionsELECTRICAL SUBASSEMBLY PIN PHOTODIODE DATA PRE- DATA AMPLIFIER POST IC AMPLIFIER IC OPTICAL DUPLEX SC SUB- RECEPTACLE SIGNAL DETECT ASSEMBLIES DATA LASER DRIVER LASER DATA IC TOP VIEW Figure 1. Block Diagram Receiver Signal Detect Applications Information Signal Detect is a basic fiber failure indicator. This is a Typical BER Performance of Receiver versus Input Opti- singleended PECL output. As the input optical power cal Power Level is decreased, Signal Detect will switch from high to low The AFCT5815xZ transceiver can be operated at (deassert point) somewhere between sensitivity and BitErrorRate conditions other than the required BER = the no light input level. As the input optical power is 10 1 x 10 of the ATM Forum 155.52 Mb/s Physical Layer increased from very low levels, Signal Detect will switch Standard. The typical tradeoff of BER versus Relative In back from low to high (assert point). The assert level will be put Optical Power is shown in Figure 2. The Relative Input at least 0.5 dB higher than the deassert level. Optical Power in dB is referenced to the actual sensitivity 10 Transceiver Specified for Wide Temperature Range Op - of the device. For BER conditions better than 1 x 10 , more input signal is needed (+dB). eration The AFCT5815xZ is specified for operation over extended -2 10 temperature range of 40 to +85C. LINEAR EXTRAPOLATION OF -4 -7 10 THROUGH 10 DATA -3 10 Characterization of the parts has been performed over BASED ON -4 10 ACTUAL DATA the ambient operating temperature range in an airflow -5 10 of 2 m/s. -6 10 -7 10 -8 Other Members of Avago Technologies SC Duplex 10 -9 10 -10 10 -11 155 Mb/s Product Family 10 -12 10 -13 10 HFC T5801, 1300 nm single mode transceiver for links -14 10 -15 10 up to 15 km. The part is based on the 2 x 9 industry -5 -4 -3 -2 -1 0 1 2 3 standard package and has laser bias, optical power monitor and transmitter disable functions. Figure 2. Relative Input Optical Power - dBm. Avg. 2 BIT ERROR RATIO