Title :
A sigma-delta ADC with a built-in anti-aliasing filter for Bluetooth receiver in 130nm digital process
Author :
Koh, Jinseok ; Muhammad, Khurram ; Staszewski, Bogdan ; Gomez, Gabriel ; Horoun, Baher
Author_Institution :
Wireless Bus. Terminal Unit, Texas Instrum. Inc., Dallas, TX, USA
Abstract :
A discrete-time sigma delta ADC is presented, that filters and decimates by two the input data samples, while providing amplification in its input sampling stage. This compact architecture allows operating preceding blocks at twice the ADC´s clock frequency, thus improving the noise performance of the receive channel. The presented approach has been validated and incorporated in a commercial Bluetooth receiver IC, realized in a 1.5 V, 130 nm digital CMOS process.
Keywords :
Bluetooth; CMOS integrated circuits; FIR filters; discrete time filters; sigma-delta modulation; switched capacitor filters; 1.5 V; 130 nm; Bluetooth receiver; anti-aliasing filter; decimation filter; digital CMOS process; discrete-time ADC; input sampling stage amplification; low noise receive channel; sigma-delta ADC; switched capacitor FIR filter; switched capacitor sampling network; Bluetooth; CMOS digital integrated circuits; CMOS integrated circuits; CMOS process; Clocks; Delta-sigma modulation; Digital filters; Frequency; Integrated circuit noise; Sampling methods;
Conference_Titel :
Custom Integrated Circuits Conference, 2004. Proceedings of the IEEE 2004
Print_ISBN :
0-7803-8495-4
DOI :
10.1109/CICC.2004.1358877
