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QDAX-500
InGaAs APDFET Receiver
I I I I I
Long-haul STM4/OC12 applications High sensitivity, -40 dBm at 622 Mb/s Low optical reflection 1300 and 1550 nm operation Transimpedance amplifier
Description
The Corning Lasertron QDAX is a fiber-optic receiver utilizing an InGaAs APD followed up with a fixed 4K Ohm transimpedance amplifier which offers superior sensitivity required in long-haul applications. Packaged in a 14-pin DIL, the QDAX is pigtailed with single-mode fiber and the amplifier has 50 Ohm output impedance.
Specifications
Contact Corning Lasertron regarding special requirements. (Characteristics at 25oC, except as noted) Min Typ Max Optical Characteristics Operating wavelength (nm) 1250 1560 Responsivity, APD gain = 1, 1550 nm (A/W) 0.9 Return loss (dB) 27 Electrical Characteristics Sensitivity, 1 * 10-10, 1550 nm, 622 Mb/s (dBm)1 -40.5 -40 Maximum overload (dBm)2 -15 -11 Transimpedance (K Ohms) 3.2 Bandwidth 3 < M < 20 (MHz) 500 +5 V supply current (mA) 54 65 -5 V supply current (mA) 25 35 Output impedance (Ohm) 45 55 65 Operating Conditions and Requirements Storage temperature range (oC) -40 85 Operating temperature range (oC) -20 70 Positive supply voltage (V) 4.75 5 5.25 Negative supply voltage (V) -5.25 -5 -4.75 Power consumption (mW) 400 500 1 Sensitivity is tested at an optimum APD voltage, typically M=12. 2 Maximum overload is tested at the minimum APD voltage to achieve 500 MHz bandwidth, typically M<3.
Pin Connections
1 2 3 4 5 6 7 APD Bias Voltage (+) Ground Ground -5V Case Ground Ground Ground 8 9 10 11 12 13 14 Ground +5 V Ground Ground Output Ground NC
Ordering Information
Base Model QDAX-500 No Connector -002
Suffix FC/PC -050 ST -052 SC -053
Product Information/Receivers and Detectors
2000
43

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