A single-chip quad-band (850/900/1800/1900 MHz) direct-conversion GSM/GPRS RF transceiver with integrated VCOs and fractional-N synthesizer

A monolithic IC has been designed which integrates all the active RF functions of a quad band GSM handset except for the power amplifier. A direct-conversion receiver (900 MHz, NF 3.0 dB, IIP2 +65 dBm) and an up-conversion loop transmitter (900 MHz spectrum at 400 kHz -65 dBc, phase noise at 20 MHz -64 dBc/Hz) using a fractional-N PLL and fully-integrated transmit and UHF VCOs.

[1]  L. Larson,et al.  A wide-bandwidth Si/SiGe HBT direct conversion sub-harmonic mixer/downconverter , 2000, IEEE Journal of Solid-State Circuits.

[2]  A. Rofougaran,et al.  A CMOS channel-select filter for a direct-conversion wireless receiver , 1996, 1996 Symposium on VLSI Circuits. Digest of Technical Papers.

[3]  K. W. Martin,et al.  A 6-GHz integrated phase-locked loop using AlGaAs/GaAs heterojunction bipolar transistors , 1992 .

[4]  J. Fenk,et al.  An up-conversion loop transmitter IC for digital mobile telephones , 1998, 1998 IEEE International Solid-State Circuits Conference. Digest of Technical Papers, ISSCC. First Edition (Cat. No.98CH36156).

[5]  G. A. De Veirman,et al.  Design of a bipolar 10-MHz programmable continuous-time 0.05 degrees equiripple linear phase filter , 1992 .

[6]  S. Atkinson,et al.  A direct conversion transceiver for multi-band GSM application , 2000, 2000 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium Digest of Papers (Cat. No.00CH37096).

[7]  E. Hegazi,et al.  23.4 A Filtering Technique to Lower Oscillator Phase Noise , 2008 .

[8]  Yannis Tsividis,et al.  Integrated continuous-time filter design , 1993, Proceedings of IEEE Custom Integrated Circuits Conference - CICC '93.

[9]  H. Kokatsu,et al.  An I/Q active balanced harmonic mixer with IM2 cancelers and a 45/spl deg/ phase shifter , 1998, 1998 IEEE International Solid-State Circuits Conference. Digest of Technical Papers, ISSCC. First Edition (Cat. No.98CH36156).

[10]  Asad A. Abidi,et al.  RF-CMOS oscillators with switched tuning , 1998, Proceedings of the IEEE 1998 Custom Integrated Circuits Conference (Cat. No.98CH36143).

[11]  A. Swaminathan,et al.  A 22 mW Bluetooth RF transceiver with direct RF modulation and on-chip IF filtering , 2001, 2001 IEEE International Solid-State Circuits Conference. Digest of Technical Papers. ISSCC (Cat. No.01CH37177).

[12]  Behzad Razavi,et al.  Design considerations for direct-conversion receivers , 1997 .

[13]  B.-S. Song,et al.  A 1.1-GHz CMOS fractional-N frequency synthesizer with a 3-b third-order /spl Delta//spl Sigma/ modulator , 2000, IEEE Journal of Solid-State Circuits.

[14]  A. Molnar,et al.  RF local oscillator path for GSM direct conversion transceiver with true 50% duty cycle divide by three and active third harmonic cancellation , 2002, 2002 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium. Digest of Papers (Cat. No.02CH37280).

[15]  Alyosha Molnar,et al.  BiCMOS for RF Systems on Chip , 2002 .