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S3170
2.5 Gbps Transimpedance Amplifier
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PHY/PMD
General Description
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The S3170 is a high-speed transimpedance amplifier (TIA) for 2.5
Gbps applications. Input currents as high as 2.2 mA can be amplified
with low duty cycle distortion. The low input noise allows signals down
to 3.7 µA (peak to peak) to be detected with a signal to noise ratio of
22 dB (allows for BER< 1E-10).
The outputs are voltage limited to 1000 mV, differential, in order to
allow a wide input dynamic range without exceeding the input voltage
range of the post (limiting) amplifier. The figure below shows a typical
application.
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Features
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2 GHz Bandwidth
10 k Ohms differential transimpedance
Single 3.3 V supply
6.9 pA/rt Hz typical noise current density
2.2 mA peak to peak max input current
Source terminated differential outputs
Voltage limited outputs
Maximum Die size: 1.27 mm by 1.27 mm
Applications
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SONET OC-48
Fiber optic data links
S3170 Typical Network Application
file:////El_zayat/PDF's%20458/S3170.htm (1 of 2)8/16/2004 2:12:03 PM
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
