FID3S2KX

Analog PIN Photodiode FEATURES • • • • • • PIN photodiode for CATV/Analog applications High Responsivity Wide Bandwidth Low Modulation Distortion High Optical Return Loss: >40dB High Frequency Response: >2.5GHz FID3S2KX APPLICATIONS • Analog Transmission Systems • AM and FM CATV systems DESCRIPTION The FID3S2KX is a PIN photodiode module with a single mode fiber pigtail specifically designed for multichannel analog transmission systems. The photodiode uses a planar structure to achieve low dark current, high responsivity and high reliability. The coupling optics in the package is designed for very low optical reflection. The package is hermetically sealed. ABSOLUTE MAXIMUM RATINGS (Tc=25°C, Unless otherwise specified) Parameter Storage Temperature Operating Case Temperature PIN Reverse Voltage PIN Forward Current PIN Reverse Current Symbol Tstg Top VR IF IR Limits Min. -40 -40 0 Max. +85 +85 20 10 5 Unit °C °C V mA mA OPTICAL & ELECTRICAL CHARACTERISTICS (Tc=25°C, λ=1,310 and 1,500nm, Unless otherwise specified) Parameter PIN Responsivity Dark Current Cut-off Frequency Capacitance 2nd Order Intermodulation Distortion 3rd Order Intermodulation Distortion Optical Return Loss Note 1: Note 2: Note 3: Note 4: Symbol R ID fc Ct IMD2 IMD3 ORL Conditions VR=1V VR=5V VR=5V, RL=50Ω, Pin=-3dBm, -3dB from 500kHz Note 4 VR=5V, f=1MHz, Note 1 Min. 0.8 1.5 2.5 40 Limits Typ. Max. 0.90 0.1 2.0 0.8 45 1.0 1.0 -65 -80 - Unit A/W nA GHz pF dBc dBc dB 2 Tone/2 Laser test. Modulation index=70%/ch. Total average optical power=0dBm. Frequency=244MHz and 250MHz. Recommended VR=10V when Pin>0dBm or f>1GHz. All optical parameters are measured including the optical connector. Lead length (Air gap between stem base and PCB) < 2mm. Edition 1.1 July 2004 1 FID3S2KX Fig. 1 Responsivity vs. Wavelength Analog PIN Photodiode Fig. 2 Dark Current vs. Reverse Voltage 1.2 1.1 1.0 Dark Current, ID (A) 0.9 0.8 85°C 0.7 0.6 0.5 1300 1340 1380 1420 1460 1500 1540 1580 1620 Wavelength, λ (nm) 25°C -40°C Pin = 0.2mW VR = 5V 10-8 Ta = 85°C 10-9 Ta = 25°C 10-10 Responsivity (A/w) 10-11 Ta = -40°C 10-12 10-13 0 10 Reverse Voltage, VR (V) 20 Fig. 3 Capacitance vs. Reverse Voltage 10 6 Ta=25°C, f=1 MHz Fig. 4 Frequency Response Ta = 25°C, VR = 10V, RL = 50Ω, λ = 1550nm, Pin=-10dBm 3 Response (dB) 0 -3 -6 -9 Air Gap=3mm Air Gap=