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Questions related from Rakesh Krishna Vs
While referring to optical transceiver modules say 400G-DR4 optical modules, where there are 4 electrical lanes for 4 optical fibers - the data sheets report 53.125GBd symbol rate. I used to think...
21 June 2025 8,178 2 View
I have an experiment set up where the device under test DUT requires DC power supply. But the output of the device needs to be connected to an oscilloscope. I am apprehensive about damaging any of...
18 May 2023 286 0 View
I was wondering how to experimentally measure the TI gain of a TIA using a VNA. Usually VNA provides S-parameters which is voltage ratio. But how can we get/derive a measurement that is the ratio...
12 October 2022 1,483 1 View
I have a coplanar GSGSG electrode configuration in a device, which needs a termination resistor (R) added. I have tow possible configurations in my mind on how to add these resistors. Attached...
10 September 2021 6,676 0 View
Hi, I would like to know the different between the signal outputs at RF probes specifically how the signals look like with GS and GSG probes. Suppose, I have a signal generator generating 2 Vpp...
16 May 2021 2,727 3 View
I am designing a 3-stage inverter TIA. The first stage in my design is capable of voltage gain 5x at the maximum(14 dB). I wanted to increase this gain, so I cascaded it with two similar stages....
28 January 2021 7,842 3 View
Hi, I have a phase shifter design that produces phase shift with applied voltage, which follows a function that could be very closely approximated by a second order polynomial. However, the...
12 July 2020 9,217 2 View
Hi, I am working on a Phased array project and would like to know the characterization aspects of it. I have an antenna array whose far field pattern is shown to have HBPW of 13 degree through...
05 July 2020 3,128 0 View
I am modulating an OOK signal(square wave) of 100 MHz. The electrical signal after photodetection shows a frequency of 20 MHz. The amplifiers used in my system are capable of handling 100 MHz. Can...
05 June 2017 8,493 4 View
Hi I am designing a TIA in cadence with an inverter stage amplifier. There are some fundamental question boggling me about the bias of MOSFETs in the amplifier. I figured out from simulations that...
01 January 1970 5,084 12 View
I am working on designing a circuit that subtracts two DC outputs from the photodiode ends with series resistors. For this, I am planning to use the basic differential amplifier connected to the...
01 January 1970 4,237 1 View
Hi, I am trying to find out the saturation power of a TIA using PSS analysis in cadence. The goal is to plot Psat Vs frequency. Since the value of Psat is not directly plotted, I am curious is...
01 January 1970 3,812 8 View
