EP 1101285 A4 20011004 - SINGLE CHIP CMOS TRANSMITTER/RECEIVER AND VCO-MIXER STRUCTURE
Title (en)
SINGLE CHIP CMOS TRANSMITTER/RECEIVER AND VCO-MIXER STRUCTURE
Title (de)
EINZELCHIP CMOS SENDER/EMPFÄNGER UND MISCHERSTRUKTUR MIT SPANNUNGSGETSEUERTEM OSZILLATOR
Title (fr)
EMETTEUR/RECEPTEUR MONOPUCE A MOS COMPLEMENTAIRE ET STRUCTURE MELANGEUSE A OSCILLATEUR A FREQUENCE COMMANDEE
Publication
Application
Priority
- US 9914162 W 19990723
- US 12160198 A 19980724
- US 12186398 A 19980724
Abstract (en)
[origin: WO0005815A1] A single chip RF communication system and method and a VCO-mixer (130) structure are provided. The RF communication system in accordance with the present invention includes a transmitter (1100) and a receiver (100), an antenna for receiving transmitting RF signals, a PLL (130) for generating multi-phase clock signals having a frequency different from a carrier frequency in response to the multi-phase clock signals and a reference signal having the carrier frequency, a demodulation-mixing unit (140) for mixing the received signal with the multi-phase clock signals having a frequency different from the carrier frequency to output the RF signals having a frequency reduced by the carrier frequency and an A/D converting unit (160) for converting the RF signals from the mixing unit into digital signals. The VCO (130) in accordance with the present invention includes a plurality of differential delay and the mixer includes a differential amplifying circuit (1200A) and combining circuit (1200B). The differential amplifying circuit (1200A) of the multi-phase mixer includes two load resistors (R2, R1) coupled to two differential amplifiers (1200A1, 1200A2) respectively. The combining circuit (1200B) includes bias transistors (1232, 1234), first and second combining circuits coupled to the bias transistors, respectively and a current source coupled to the first and second combining units.
IPC 1-7
IPC 8 full level
H03D 1/22 (2006.01); H03D 7/00 (2006.01); H03H 11/22 (2006.01); H03K 9/00 (2006.01); H03L 7/099 (2006.01); H03L 7/197 (2006.01); H04B 1/26 (2006.01); H04B 1/40 (2006.01); H04L 7/00 (2006.01); H04L 27/18 (2006.01); H04L 27/34 (2006.01); H03L 7/089 (2006.01)
CPC (source: EP KR)
H03D 7/00 (2013.01 - KR); H03H 11/22 (2013.01 - EP); H03K 9/00 (2013.01 - EP); H03L 7/0995 (2013.01 - EP); H03L 7/1974 (2013.01 - EP); H04B 1/403 (2013.01 - EP); H03H 2011/0494 (2013.01 - EP); H03L 7/0891 (2013.01 - EP)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 0005815A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0005815 A1 20000203; AU 5084099 A 20000214; AU 764882 B2 20030904; CA 2338564 A1 20000203; CA 2338564 C 20091222; CN 1148873 C 20040505; CN 1309835 A 20010822; EP 1101285 A1 20010523; EP 1101285 A4 20011004; HK 1040467 A1 20020607; HK 1040467 B 20050304; JP 2002521904 A 20020716; JP 4545932 B2 20100915; KR 100619227 B1 20060905; KR 20010082016 A 20010829; TW 463464 B 20011111
DOCDB simple family (application)
US 9914162 W 19990723; AU 5084099 A 19990723; CA 2338564 A 19990723; CN 99808764 A 19990723; EP 99935344 A 19990723; HK 02101131 A 20020216; JP 2000561705 A 19990723; KR 20017001063 A 20010126; TW 88112619 A 20001110