Skip to main content Accessibility help
×
Home
Hostname: page-component-768ffcd9cc-s8fcc Total loading time: 0.312 Render date: 2022-12-06T18:08:51.790Z Has data issue: true Feature Flags: { "useRatesEcommerce": false } hasContentIssue true

4 - Discrete-Time Band-Pass Filter

Published online by Cambridge University Press:  05 May 2022

Massoud Tohidian
Affiliation:
Qualinx B.V., Delft
Iman Madadi
Affiliation:
Qualinx B.V., Delft
Amir Bozorg
Affiliation:
University College Dublin
Robert Bogdan Staszewski
Affiliation:
University College Dublin
Get access

Summary

A complex quadrature charge-sharing (CS) technique is utilized to implement a discrete-time band-pass filter with a programmable bandwidth of 20–100 MHz. The BPF is a natural part of a cellular superheterodyne receiver and completely determines the receiver frequency selectivity. It operates at the full sampling rate (4×) (described in Chapter 2 of up to 5.2 GHz corresponding to the 1.2 GHz RF input frequency, thus making it free from any aliasing or replicas in its transfer function. Furthermore, the advantages of CS-BPFover other band-pass filters, such as N-path, active-RC, Gm-C, and biquad are described. A mathematical noise analysis of the CS-BPF and the comparison of simulations and calculations are presented. The entire 65 nm CMOS receiver, which does not include a front-end LNTA for test reasons, achieves a total gain of 35 dB, IRN of 1.5 nV/?Hz, out-of-band IIP3 of +10 dBm. It consumes 24 mA at 1.2 V power supply.

Type
Chapter
Information
Publisher: Cambridge University Press
Print publication year: 2022

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Save book to Kindle

To save this book to your Kindle, first ensure coreplatform@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Available formats
×

Save book to Dropbox

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.

Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

Available formats
×