AFBR-59E4APZC Broadcom

AFBR-59E4APZC Multimode Small-Form Factor (SFF) Transceiver for Fast Ethernet, with LC Connector and Conformal Coating Data Sheet Description Features The AFBR-59E4APZC is a new power saving Small Form-Factor Multisourced 2 5 package style transceiver that gives the system designer a product to Operates with 62.5/125-m and 50/125-m multimode implement a range of solutions for multimode fiber Fast fiber Ethernet. Single +3.3V power supply This transceiver is supplied in the industry standard 2 5 DIP Wave solder and aqueous wash process compatibility style with an LC fiber connector interface. Manufactured in an ISO 9001 certified facility Compatible with the optical performance requirements of 100BASE-FX version of IEEE 802.3u Transmitter RoHS compliant The transmitter section of the AFBR-59E4APZC transceiver uses LVPECL signal detect output a 1310-nm LED. This LED is packaged in the optical Temperature range: 40C to +85C subassembly portion of the transmitter section. It is driven by Usage in harsh environment enabled by conformal coating an integrated circuit that converts differential LVPECL logical (PCB, interior, and exterior areas of the housing) signals into an analog LED drive current. Harsh environment tested according to EIA-364-65B Class IIIA and ASTM B 117 Receiver The receiver uses an InGaAs PIN photodiode coupled to a Application trans-impedance pre-amplifier IC. It is packaged in the optical subassembly of the receiver. The PIN/preamplifier combination Fast Ethernet is connected to a quantizer IC, which provides the final pulse shaping for data output. The data output is differential LVPECL. The signal detect output is single-ended. Both data and signal detect outputs are LVPECL compatible. Broadcom - 1 -AFBR-59E4APZC Data Sheet Package Pin Descriptions The package outline drawing and pinout are shown in Figure 1 Pin 1 Receiver Signal Ground V RX: and Figure 5. The details of this package outline and pinout are EE compliant with the multisource definition of the 2 5 DIP. The Directly connect this pin to the receiver ground plane. low profile of the Broadcom transceiver design complies with the maximum height allowed for the LC connector over the entire length of the package. Pin 2 Receiver Power Supply V RX: CC The optical subassemblies utilize a high-volume assembly Provide +3.3 V DC via the recommended receiver power supply process together with low-cost lens elements, which result in a filter circuit. Locate the power supply filter circuit as close as cost-effective building block. possible to the VCC RX pin. The electrical subassembly consists of a high volume multilayer printed circuit board on which the ICs and various Pin 3 Signal Detect SD: surface-mounted passive circuit elements are attached. Normal optical input levels to the receiver result in a logic 1 The receiver and transmitter sections include an internal shield output. for the electrical and optical subassemblies to ensure high immunity to external EMI fields. Low optical input levels to the receiver result in a logic 0 output. The outer housing including the LC ports is molded of filled nonconductive plastic to provide mechanical strength. The solder posts of the Broadcom design are isolated from the Pin 4 Receiver Data Out Bar RD-: internal circuit of the transceiver. Signal AC coupled LVPECL. See Figure 2. The transceiver is attached to a printed circuit board with the ten signal pins and the two solder posts, which exit the bottom Pin 5 Receiver Data Out RD+: of the housing. The two solder posts provide the primary mechanical strength to withstand the loads imposed on the Signal AC coupled LVPECL. See Figure 2. transceiver by mating with the LC connector fiber cables. Figure 1 Pin Out Diagram Pin 6 Transmitter Power Supply V TX: CC RX TX Provide +3.3 V DC via the recommended transmitter power supply filter circuit. Locate the power supply filter circuit as Mounting close as possible to the VCC TX pin. Studs/Solder Posts Pin 7 Transmitter Signal Ground V TX: EE Directly connect this pin to the transmitter ground plane. Top View Pin 8 NC: Not connected. o 1 10 o RECEIVER SIGNAL GROUND TRANSMITTER DATA IN BAR o o RECEIVER POWER SUPPLY 2 9 TRANSMITTER DATA IN Pin 9 Transmitter Data In TD+: o o SIGNAL DETECT 3 8 NC o RECEIVER DATA OUT BAR o 4 7 TRANSMITTER SIGNAL GROUND Signal AC coupled LVPECL. See Figure 2. o RECEIVER DATA OUT o 5 6 TRANSMITTER POWER SUPPLY Pin 10 Transmitter Data In Bar TD-: Signal AC coupled LVPECL. See Figure 2. Broadcom - 2 -