G9820 series is a family of high-speed receivers specifically developed for 1.3/1.55 µm band optical fiber communications. These
devices incorporate a high-speed, high-sensitivity InGaAs PIN photodiode integrated with a high-speed preamp, allowing easy
connection to a latter-stage circuit. Lens window types are also available for efficient and easy coupling to an optical fiber.
Features
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High-speed response
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High gain with AGC (Auto Gain Control)
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Low power supply voltage: 3.3 V
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Differential output
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Sensitivity: -25.5 to +1 dBm
Applications
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Optical fiber communications
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Fiber channel
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Gigabit Ethernet
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SDH/SONET (STM-16/OC-48)
PHOTODIODE
InGaAs PIN photodiode with preamp
TO-46 package, 1.3/1.55 µm, 2.5 Gbps
G9820 series
■ Absolute maximum ratings
Parameter Symbol Value Unit
Supply voltage Vcc -0.5, +5.0 V
Operation temperature *1Topr -40 to +85 °C
Storage temperature *1Tstg -40 to +85 °C
*1: No condensation
■ Electrical and optical characteristics
(Ta=25 °C, Vcc=3.3 V, Vee=0 V, RL=50 Ω *2, λ=1.31 µm, unless otherwise noted)
Parameter Symbol Condition Min. Typ. Max. Unit
Photo sensitivity S Pin= -22 dBm *2, *31.0 1.5 - V/mW
Supply current Icc Dark state, RL=∞-45 60 mA
Output bias voltage Vo Dark state, RL=∞-3.0- V
Cut-off frequency fc Pin= -22 dBm, -3 dB *21.7 2.1 -GHz
Low cut-off frequency fc-L Pin= -22 dBm, -3 dB - 3.0 - kHz
Noise equivalent power NEP Dark state, to 1875 MHz, *2, *3-310 500 nWrms
Minimum receivable
sensitivity Pmin - -25.5 -23.5
Maximum receivable
sensitivity Pmax
2.5 Gbps, PRBS=223-1
BER=10-10
Extinction ratio=10 dB +1 - -
dBm
Output impedance Rout 40 50 60 Ω
*2: Output: capacitive coupling
*3: Single-ended (Vout+) measurement
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