Title :
A Total Solution for a 9600 Bits/Sec Modem Transmitterchip
Author :
Haspeslagh, J. ; Sansen, W.
Author_Institution :
MICAS, Katholieke Univ. Leuven, Heverlee, Belgium
Abstract :
A single chip analog transmitter (TX-chip) for a V29- V32 9600 bit/sec modem has been implemented in a 3μ CMOS process. A high level of integration permits a low cost, high performance modem to be built. The TX-chip is composed of as well analog, SC, and digital circuits. The important functions realised are the phasepoint generator, the cosine roll off lowpass filters, the modulator and the programmable equalization filters. The chip occupies 29 mm* and dissipates 300 mW.
Keywords :
modems; CMOS process; lowpass filters; modem; modulator; phasepoint generator; power 300 mW; programmable equalization filters; single chip analog transmitter; Clocks; Costs; Digital signal processing chips; Filters; Modems; Phase modulation; Quadrature amplitude modulation; Switches; Telephony; Transmitters;
Conference_Titel :
Solid-State Circuits Conference, 1989. ESSCIRC '89. Proceedings of the 15th European
Conference_Location :
Vienna
Print_ISBN :
3-85403-101-7
DOI :
10.1109/ESSCIRC.1989.5468102
