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Re: Mapping coefficient of continues transfer function to di
Hi,
I have a similar problem where I want to "map" an analog filter to a digital filter where both the phase and amplitude responses of the analog filter should be preserved (in the digital filter). In essence I want a digital...
If I/Q will be used or not depends (among others) on the type of modulation. For example a simple FM receiver may not use I/Q and demodulate the signal directly in an IF freq. However in major communication stds like WCDMA, GSM, OFDM (WLAN, WiMAX) etc. I/Q is used in the signal chain even if the...
If you have a low frequency application you can perform the single ended to differential conversion by just using an opamp (and resistors) in inverting configuration. So the differential signal is your input and the opamp output.
However if you need to do this at high frequencies where an opamp...
By searching the IEEE JSSC you will find several papers for 5GHz 802.11a direct conversion receivers as well as the issues that they are facing like DC offset etc.
Some examples:
"A 5-GHz direct-conversion CMOS transceiver utilizing automatic frequency control for the IEEE 802.11a wireless LAN...
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