AFBR-57E6APZ-HT Broadcom

AFBR-57E6APZ-HT Multimode Small Form Factor Pluggable Transceivers with LC Connector and DMI for FDDI and Fast Ethernet Data Sheet Description Features The AFBR-57E6APZ-HT Small Form Factor Pluggable LC RoHS compliant transceiver provides the system designer a product to Lead free implement FDDI/Fast Ethernet networks with DMI physical Industry standard Small Form Pluggable (SFP) package layers. LC duplex connector optical interface As an enhancement to the conventional SFP interface defined Operates with 50/125 m and 62.5/125 m multimode in SFF-8074i, the AFBR-57E6APZ-HT is compatible to SFF-8472 fiber (digital diagnostic interface for optical transceivers). Using the Compatible with 100BASE-FX version of IEEE802.3u 2-wire serial interface defined in the SFF-8472 MSA, the Single +3.3V power supply AFBR-57E6APZ-HT provides real time information on +3.3V TTL LOS output temperature, LED bias current, LED average output power and Squelched receiver outputs receiver average input power. The interface also adds the ability to monitor the Receiver Loss of Signal (RX LOS). Manufactured in an ISO 9001 certified facility Operating temperature range: 40C to 95C Bail de-latch Transmitter Hot plug capability The transmitter contains a 1310-nm InGaAsP LED. This LED is packaged in the optical subassembly of the transmitter. It is Applications driven by an integrated circuit which converts differential PECL logic signals into an analog LED drive current. This current is Factory automation at Fast Ethernet speeds monitored by the digital diagnostic interface. The transmitter Fast Ethernet networking over multimode fiber light output power is inferred from this information. The LED is switched off in case a static signal is present at the PECL inputs. Receiver The receiver uses an InGaAs PIN photodiode coupled to a transimpedance pre- and postamplifier IC. It is packaged in the optical subassembly of the receiver. The data output is differential LVPECL. The LOS output is +3.3 V TTL as per SFF-8074i. The PIN photodiode average current is monitored by the digital diagnostic interface as a measure for input optical power. Rx squelch is activated when a low input power is detected. Broadcom - 1 -AFBR-57E6APZ-HT Data Sheet Loss of Signal Installation The Loss of Signal (LOS) output indicates that the optical input The AFBR-57E6APZ-HT can be installed in or removed from any power to the receiver does not meet the minimum detectable MultiSource Agreement (MSA) compliant Small Form level for FDDI compliance. Pluggable port regardless of whether the host equipment is operating or not. The module is simply inserted, electrical interface first, under finger pressure. Controlled hot-plugging is Module Package ensured by 3-stage pin sequencing at the electrical interface. The module housing makes initial contact with the host board The transceiver package is compliant with the Small Form EMI shield mitigating potential damage due to electrostatic Pluggable (SFP) MSA with the LC duplex connector option. The discharge (ESD). The 3-stage pin contact sequencing involves hot-pluggable capability of the SFP package allows the module (1) Ground, (2) Power, and then (3) Signal pins making contact to be installed at any time including when the host system is with the host board surface mount connector in that order. on-line and operating. This permits the system to be configured or maintained without system downtime. The AFBR-57E6APZ-HT requires a 3.3V DC power supply for optimal performance. Module Diagrams Figure 1 illustrates the major functional components of the AFBR-57E6APZ-HT. The connection diagram of the module is shown in Figure 2. Figures 5 to 7 depict the external configuration and dimensions of the module. Figure 1 Transceiver Functional Diagram OPTICAL INTERFACE ELECTRICAL INTERFACE RECEIVER RD+ (RECEIVE DATA) AMPLIFICATION LIGHT FROM FIBER PHOTO-DETECTOR & QUANTIZATION RD (RECEIVE DATA) Rx LOSS OF SIGNAL MOD-DEF2 (SDA) CONTROLLER & MEMORY MOD-DEF1 (SCL) MOD-DEF0 TRANSMITTER TX DISABLE TD+ (TRANSMIT DATA) LED LED DRIVER LIGHT TO FIBER TD (TRANSMIT DATA) TX FAULT Broadcom - 2 -