AFBR-59E4APZ-LH Broadcom

AFBR-59E4APZ-LH Multimode Small Form-Factor (SFF) Transceiver for Fast Ethernet, with LC Connector Data Sheet Description Features The AFBR-59E4APZ-LH is a new power saving Small Multisourced 2 5 package style Form-Factor transceiver that gives the system designer a Operates with 62.5/125 m and 50/125 m multimode product to implement a range of solutions for multimode fiber fiber Fast 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-59E4APZ-LH transceiver LVPECL signal detect output uses a 1310-nm LED. This LED is packaged in the optical Temperature range: 40 C to +85 C subassembly portion of the transmitter section. It is driven by Optimized for low power consumption an integrated circuit that converts differential LVPECL logical signals into an analog LED drive current. Application Receiver Fast Ethernet The receiver uses an InGaAs PIN photodiode coupled to a trans-impedance preamplifier IC. It is packaged in the optical subassembly of the receiver. The PIN/preamplifier combination 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-59E4APZ-LH Data Sheet Package Pin Descriptions The package outline drawing and pinout are shown in Figure 1 Pin 1 Receiver Signal Ground V RX EE and Figure 5. The details of this package outline and pinout are Directly connect this pin to the receiver ground plane. compliant with the multisource definition of the 2 5 DIP. The low profile of the Broadcom transceiver design complies with Pin 2 Receiver Power Supply V RX the maximum height allowed for the LC connector over the CC entire length of the package. Provide +3.3 VDC using the recommended receiver power supply filter circuit. Locate the power supply filter circuit as The optical subassemblies utilize a high-volume assembly close as possible to the V RX pin. process together with low-cost lens elements, which result in a CC cost-effective building block. Pin 3 Signal Detect SD The electrical subassembly consists of a high volume multilayer Normal optical input levels to the receiver result in a logic 1 printed circuit board on which the ICs and various output. surface-mounted passive circuit elements are attached. Low optical input levels to the receiver result in a logic 0 The receiver and transmitter sections include an internal shield output. for the electrical and optical subassemblies to ensure high immunity to external EMI fields. Pin 4 Receiver Data Out Bar RD The outer housing including the LC ports is molded of filled Signal AC coupled LVPECL. See Figure 2. nonconductive plastic to provide mechanical strength. The solder posts of the Broadcom design are isolated from the Pin 5 Receiver Data Out 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 6 Transmitter Power Supply V TX CC of the housing. The two solder posts provide the primary Provide +3.3 VDC using the recommended transmitter power mechanical strength to withstand the loads imposed on the supply filter circuit. Locate the power supply filter circuit as transceiver by mating with the LC connector fiber cables. close as possible to the V TX pin. CC Figure 1 Pin Out Diagram Pin 7 Transmitter Signal Ground V TX EE RX TX Directly connect this pin to the transmitter ground plane. Mounting Pin 8 NC Studs/Solder Posts Not connected. Pin 9 Transmitter Data In TD+ Top Signal AC coupled LVPECL. See Figure 2. View Pin 10 Transmitter Data In Bar TD Signal AC coupled LVPECL. See Figure 2. o 1 10 o RECEIVER SIGNAL GROUND TRANSMITTER DATA IN BAR Mounting Studs/Solder Posts o o RECEIVER POWER SUPPLY 2 9 TRANSMITTER DATA IN o o SIGNAL DETECT 3 8 NC The mounting studs are provided for transceiver mechanical o RECEIVER DATA OUT BAR o 4 7 TRANSMITTER SIGNAL GROUND o attachment to the circuit board. It is recommended that you RECEIVER DATA OUT o 5 6 TRANSMITTER POWER SUPPLY connect the holes in the circuit board to chassis ground. Broadcom - 2 -