BandPass Sigma-Delta Modulator for wideband IF signals
نویسندگان
چکیده
Sigma-Delta modulation techniques have been applied to narrow-band passband signals [Jantzi93]. Recent technology improvement has allowed conversion of GSM channels [Ong97] and DECT channels[Bazarjiani97]. In this report, the main concept behind BandPass Sigma-Delta conversion is briefly explained together with its advantages and applications. The architecture choices for this design are then discussed. Finally, the main building blocks and the circuit non-idealities are both analyzed analytically and simulated with appropriate tools.
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