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 60825-1 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 40 85 C Supply Voltage Vcc 0.5 4.0 V Input Voltage V IN 0.5 Vcc V Soldering Temperature T SOLD --- 260 C 10 seconds on leads Page 1 of 7
Recommended Operating Conditions PARAMETER SYMBOL MIN TYP. MAX UNITS NOTE Case Operating Temperature T C -40 --- 85 C Supply Voltage Vcc 3.1 3.3 3.5 V Supply Current(TX+RX) I TX + I RX --- 110 160 ma Power consumption(tx+rx) I TX + I RX --- 363 560 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 50 125/155 200 Mb/s Output Optical Power 62.5/125 μm fiber Pout 20 --- -14 dbm Output Optical Power 50/125 μm fiber Pout 23.5 --- -14 dbm Extinction Ratio ER 10 --- --- db Center Wavelength λ C 1270 1310 1380 nm Spectral Width (FWHM) Δλ --- --- 30 nm Rise/Fall Time (10 90%) T r, f --- 1 2 ns Disable input voltage-high T dis 2.2 --- --- V Disable input voltage-low T dis --- --- 0.6 V Differential input voltage V IN 0.4 --- 2.0 V Input differential impedance Rin --- 100 --- ohm Page 2 of 7
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 50 125/155 200 Mb/s Optical Input Power -maximum P IN -14 --- --- dbm Optical Input Power minimum (Sensitivity) P IN --- --- 31 dbm Operating Center Wavelength λ C 1260 --- 1380 nm Signal Detect-Asserted P A --- --- 31 dbm Signal Detect-Deasserted P D 45 --- --- dbm Signal Detect-Hysteresis P A P D 0.5 --- --- db Signal Detect Output voltage - High V OH V CC 1.02 --- 0.88 V Note1 Signal Detect Output voltage - Low V OL V CC 1.81 --- 1.62 V Note1 Data Output Rise, Fall Time (10%~90%) T r, f --- 1 2 ns Differential output voltage V IN 0.5 --- 2.0 V Note1: Measured with an external 10 kω resistor to ground Page 3 of 7
Connection Diagram Pin-Out 5 RD+ 4 RD TX V CCT GND 6 7 3 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
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
Drawing Dimensions 13.50 9.50 0.30 0.45±0.10 1.78 48.20 10.16 17.78 19.59 13.00 9.00 2.92 min 3.20 16.40 uncompressed 12.00uncompressed 2X 1.00±0.1 6.24±0.10 ALL DIMENSIONS ARE±0.20mm UNLESS OTHERWISE SPECIFIED Unit: mm Page 6 of 7
Recommended Board Layout Hole Pattern RoHS Compliant Unit: mm (inches) Page 7 of 7