AFBR-57E6APZC Broadcom

AFBR-57E6APZC Multimode Small Form Factor Pluggable Transceivers with LC Connector and Conformal Coating, DMI for FDDI and Fast Ethernet Data Sheet Description Features The AFBR-57E6APZC 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-57E6APZC 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-57E6APZC 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). The PCB Manufactured in an ISO 9001 certified facility has an overall conformal coating except in the contact pad Operating temperature range: 40C to +85C area. Bail de-latch Hot plug capability Transmitter Usage in harsh environment enabled by conformal coated PCB The transmitter contains a 1310-nm InGaAsP LED. This LED is Harsh environment tested according to EIA-364-65B Class packaged in the optical subassembly of the transmitter. It is IIIA and ASTM B 117 driven by an integrated circuit which converts differential PECL logic signals into an analog LED drive current. This current is monitored by the digital diagnostic interface. The transmitter Applications light output power is inferred from this information. Factory automation at Fast Ethernet speeds The LED is switched off in case a static signal is present at the Fast Ethernet networking over multimode fiber PECL inputs. Receiver The receiver utilizes 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 +3.3V 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-57E6APZC Data Sheet Loss of Signal Installation The Loss of Signal (LOS) output indicates that the optical input The AFBR-57E6APZC 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 Electro-Static 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 This printed circuit board card edge connector is depicted in AFBR-57E6APZC requires a 3.3V DC power supply for optimal Figure 2 on the next page. performance. NOTE Note that the pad areas shown in Figure 2 and Figure 7 are not coated. Module Diagrams Figure 1 illustrates the major functional components of the AFBR-57E6APZC. The connection diagram of the module is shown in Figure 2. Figure 5 to Figure 8 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 -