DocumentCode :
2689386
Title :
A 3.0 V 2 GHz transmitter IC for digital radio communication with integrated VCOs
Author :
Heinen, S. ; Beyer, S. ; Fenk, J.
Author_Institution :
Siemens AG, Dusseldorf, Germany
fYear :
1995
fDate :
15-17 Feb. 1995
Firstpage :
146
Lastpage :
147
Abstract :
The digital European cordless telecommunication (DECT) standard applies to business as well as to the consumer market. Therefore cost effective solutions are required that are able to operate directly from a 3-cell power supply. A transmitter for digital data transmission is realized on a 7.5 GHz bipolar process. The IC, together with a CMOS PLL, constitutes the complete frequency synthesizer. The IC is suitable for both portable and base stations of FSK digital mobile radio, especially cordless phone systems from 1.6 to 2 GHz including DECT, wireless LAN, wireless local loop or any other system using FSK modulation. The design is optimized with respect to power supply, low current consumption, frequency stability and phase noise. No previously-reported transmitter IC includes VCOs and is capable of operating directly from a 3-cell supply. The IC presented here consists of two 800-1000 MHz VCOs, a 64/65 prescaler, a low drop voltage regulator, a frequency doubler, reference current generation, and power down and switching logic.
Keywords :
radio transmitters; 1.6 to 2 GHz; 3 V; 3-cell power supply; 64/65 prescaler; 7.5 GHz; 800 to 1000 MHz; DECT standard; FSK digital mobile radio; TDMA; UHF transmitter IC; base stations; bipolar process; cordless phone systems; digital European cordless telecommunication standard; digital data transmission; digital radio communication; frequency doubler; frequency stability; frequency synthesizer; integrated VCOs; low drop voltage regulator; phase noise; portable stations; reference current generation; wireless LAN; wireless local loop; CMOS integrated circuits; Costs; Data communication; Digital communication; Digital integrated circuits; Frequency shift keying; Power supplies; Radio transmitters; Telecommunication standards; Wireless LAN;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Solid-State Circuits Conference, 1995. Digest of Technical Papers. 41st ISSCC, 1995 IEEE International
Conference_Location :
San Francisco, CA, USA
ISSN :
0193-6530
Print_ISBN :
0-7803-2495-1
Type :
conf
DOI :
10.1109/ISSCC.1995.535468
Filename :
535468
Link To Document :
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