RoHS Compliant 1310 nm Multi-mode Transceiver 2 5, LC Duplex Connector, 3.3 V 155 Mbps ATM/SONET OC-3/SDH STM-1/Fast Ethernet

Transcription

1 Features Low power consumption Industry standard 2 5 footprint LC duplex connector Single power supply 3.3 V Differential LVPECL inputs and outputs Class 1 laser product complies with EN Ordering Information PART NUMBER INPUT/OUTPUT SIGNAL DETECT VOLTAGE TEMPERATURE LM34-A3S-PI-B-EC AC/AC LVPECL 3.3 V 40 C to 85 C Absolute Maximum Ratings PARAMETER SYMBOL MIN MAX UNITS NOTE Storage Temperature T S C Supply Voltage Vcc V Input Voltage V IN 0.5 Vcc V Soldering Temperature T SOLD C 10 seconds on leads Page 1 of 7

2 Recommended Operating Conditions PARAMETER SYMBOL MIN TYP. MAX UNITS NOTE Case Operating Temperature T C C Supply Voltage Vcc V Supply Current(TX+RX) I TX + I RX ma Power consumption(tx+rx) I TX + I RX mw Note 1 Note1: Typical Values are for room temperature at 3.3 V. Transmitter Electro-optical Characteristics Vcc = 3.1 V to 3.5 V, T C = 40 C to 85 C PARAMETER SYMBOL MIN TYP. MAX UNITS NOTE Data Rate B / Mb/s Output Optical Power 62.5/125 μm fiber Pout dbm Output Optical Power 50/125 μm fiber Pout dbm Extinction Ratio ER db Center Wavelength λ C nm Spectral Width (FWHM) Δλ nm Rise/Fall Time (10 90%) T r, f ns Disable input voltage-high T dis V Disable input voltage-low T dis V Differential input voltage V IN V Input differential impedance Rin ohm Page 2 of 7

3 Receiver Electro-optical Characteristics Vcc = 3.1 V to 3.5 V, T C = 40 C to 85 C PARAMETER SYMBOL MIN TYP. MAX UNITS NOTE Data Rate B / Mb/s Optical Input Power -maximum P IN dbm Optical Input Power minimum (Sensitivity) P IN dbm Operating Center Wavelength λ C nm Signal Detect-Asserted P A dbm Signal Detect-Deasserted P D dbm Signal Detect-Hysteresis P A P D db Signal Detect Output voltage - High V OH V CC V Note1 Signal Detect Output voltage - Low V OL V CC V Note1 Data Output Rise, Fall Time (10%~90%) T r, f ns Differential output voltage V IN V Note1: Measured with an external 10 kω resistor to ground Page 3 of 7

4 Connection Diagram Pin-Out 5 RD+ 4 RD TX V CCT GND SD TX DIS 8 2 V CCR TD+ 9 1 RX GND TD 10 TOP VIEW Case Case PIN SYMBOL DESCRIPTION 1 RX GND 2 V CCR 3 SD 4 RD 5 RD+ 6 V CCT 7 TX GND 8 TX DIS 9 TD+ 10 TD Receiver Signal Ground. Directly connect this pin to the receiver ground plane. Receiver Power Supply Provide +3.3 Vdc via the recommended receiver power supply filter circuit. Locate the power supply filter circuit as close as possible to the V CCR pin. Signal Detect. Normal optical input levels to the receiver result in a logic 1 output, V OH, asserted. Low input optical levels to the receiver result in a fault condition indicated by a logic 0 output V OL, deasserted Signal Detect is a single-ended LVPECL output. Receiver Data Output-Bar Internally ac coupled. Terminate this differential data output with a 50Ω line and a 50Ω load at the follow-on device (See recommended circuit schematic) Receiver Data Output Internally ac coupled. Terminate this differential data output with a 50Ω line and a 50Ω load at the follow-on device (See recommended circuit schematic) Transmitter Power Supply. Provide +3.3 Vdc via the recommended transmitter power supply filter circuit. Locate the power supply filter circuit as close as possible to the V CCT pin. Transmitter Signal Ground. Directly connect this pin to the transmitter signal ground plane. Directly connect this pin to the transmitter ground plane. Transmitter Disable. Connect this pin to +3.3V TTL logic high 1 to disable transmitter. To enable module connect to TTL logic low 0 or open. Transmitter Data In. Internally ac coupled. The input stage is internally biased and 50Ω terminated. (See recommended circuit schematic) Transmitter Data In-Bar. Internally ac coupled. The input stage is internally biased and 50Ω terminated. (See recommended circuit schematic) Page 4 of 7

5 Recommended Circuit Schematic RoHS Compliant TX GND(7) TD+(9) Laser Driver 100 TD-(10) TX DIS(8) Fiber Transceiver VCCT(6) L1 3.3V PHY or SerDes C3 C2 C1 VCCR(2) L2 C5 C4 SD(3) RD-(4) R1 3.3V R2 Post Amplifier RD+(5) 3.3V R3 R4 R6 R5 RX GND(1) C2/C3/C5 = 0.1 μf C1/C4 = 10 μf L1/L2 = 1 μh R1=10K Ω R6=100 Ω R2/R3 = 2.7K Ω R4/R5 =4.3K Ω Note: The proposed termination is recommended for LVPECL AC-coupled signals. Other terminations could also be applicable, depending on the SerDes interface Page 5 of 7

6 Drawing Dimensions ± min uncompressed 12.00uncompressed 2X 1.00± ±0.10 ALL DIMENSIONS ARE±0.20mm UNLESS OTHERWISE SPECIFIED Unit: mm Page 6 of 7

7 Recommended Board Layout Hole Pattern RoHS Compliant Unit: mm (inches) Page 7 of 7