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I've tape out an OTA, now want to test the bandwidth of it, just use oscilloscope，but the input load of oscilloscope is very big which will affect the bandwidth of OTA, can anyone give me any suggestion how to test it , thanks very much!
dc offset
it is a two stage programmable amplifier, the core amp is an ota, inorder to cancel the dc offset, a feedback loop is adopted. however,
traditional structre(in Razavi's book) can not be used here, because the loop circuit is very sensitive to load.
can anyone give me some...
several days ago, i found out that the difference is due to the fact that the finger in schematic is not matched to layout, if matched, the difference disappears.
it is a ask_detector schematic, the layout is also drawn(umc18)
then use two tools to extract and post simulate it, assura and calibre
The post simu result of assura is similar to schematic result.
while the calibre result differs a lot to schematic result .
i don't know which one to...
it is a ask_detector schematic, the layout is also drawn(umc18)
then use two tools to extract and post simulate it, assura and calibre
The post simu result of assura is similar to schematic result.
while the calibre result differs a lot to schematic result .
i don't know which one to trust...
i am using DF and Envelope together to simulate RF_front (SDC_AMFA_Cosim) and DSP, but i find out that while i change the parameters such as S21, NF in (SDC_AMFA_Cosim) , the result of the whole system do not change, such as demodulated output signal amplititute, it really puzzle me!
the transceiver is half duplex, 5mA should cover the 300kbps download or 1Mbps upload.
Here the image problem could be ignored.
So i think i will choose FSK low IF and one mixer structure to minimize power.
Hi
i am a new guy here, and want to download the isscc2008 session 20, but don't have enough points!
The download address is
my email address is "liguofeng06(at)semi.ac.cn"
Thanks in advance!
How to design a 5mA lowpower transceiver,
it is operated in 2.4G, download datarate is 300kbps,
I can not decide to choose Zero IF or Low IF structure?
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