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G9821

更新时间： 2024-11-12 01:25:31
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HAMAMATSU /
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InGaAs PIN photodiodes with preamp

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G9821 数据手册

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InGaAs PIN photodiodes with preamp  
G9821 series  
Receptacle type, 1.3/1.55 μm, 2.5 Gbps  
The G9821 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 and a high-speed preamp  
integrated in a receptacle module. Packages are available with various connectors and mounting styles.  
Features  
Applications  
High-speed response  
Optical fiber communications  
Fiber channel  
High gain with AGC (auto gain control)  
Low power supply voltage: 3.3 V  
Differential output  
Gigabit Ethernet  
SDH/SONET (STM-16/OC-48)  
Sensitivity: -25.5 to +1 dBm  
Absolute maximum ratings  
Parameter  
Supply voltage  
Operation temperature  
Storage temperature  
Symbol  
Vcc  
Topr  
Tstg  
Condition  
Value  
Unit  
V
°C  
°C  
-0.5, +5.0  
-40 to +85  
-40 to +85  
No dew condensation*1  
No dew condensation*1  
*1: When there is a temperature difference between a product and the surrounding area in high humidity environment, dew condensation  
may occur on the product surface. Dew condensation on the product may cause deterioration in characteristics and reliability.  
Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the product  
within the absolute maximum ratings.  
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  
Photosensitivity  
Supply current  
Output bias voltage  
Cutoff frequency  
Low cutoff frequency  
Noise equivalent power  
Symbol  
S
Icc  
Vo  
fc  
Condition  
Min.  
1.0  
-
-
1.7  
-
Typ.  
1.5  
45  
3.0  
2.1  
3.0  
310  
Max.  
Unit  
V/mW  
mA  
V
GHz  
kHz  
nW rms  
Pin=-22 dBm *2 *3 *4  
Dark state, RL=∞  
Dark state, RL=∞  
Pin=-22 dBm, -3 dB *3  
Pin=-22 dBm, -3 dB  
-
60  
-
-
-
fc-L  
NEP  
Dark state, to 1875 MHz *3  
*
-
500  
4
2.5 Gbps, PRBS=223-1  
Minimum receivable sensitivity  
Maximum receivable sensitivity  
Pmin  
-
-23.5  
-
-25.5  
-
BER=10-10  
dBm  
Pmax  
+1  
Extinction ratio=10 dB  
Output impedance  
Optical return loss  
Rout  
ORL  
40  
12  
50  
14  
60  
-
Ω
dB  
1.31/1.55 μm  
*2: Using a single mode optical fiber with a master plug  
*3: Output: capacitive coupling  
*4: Single-ended (Vout+) measurement  
The G9821 series may be damaged by electrostatic discharge, etc. Be careful when using the G9821 series.  
1
www.hamamatsu.com  
123

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