Thomann W, Fenk J, Hagelauer R, Weigel R (2001)
Publication Type: Journal article
Publication year: 2001
Publisher: IEEE
Book Volume: 36
Pages Range: 1407-1419
Journal Issue: 9
DOI: 10.1109/4.944670
A fully integrated, dual intermediate frequency (IF) receiver and an IF transmitter, each with on-chip IF synthesizer, for use in third-generation wide-band code division multiple access (W-CDMA) mobiles has been implemented in a standard, high-frequency, Si-bipolar process with an fT of 25 GHz. The IF receiver (318 MHz) and IF transmitter (285 MHz) include a complete phase-locked loop (PLL) and on-chip voltage-controlled oscillator (VCO) with integrated varactors and transformers. The VCOs are used for on-chip local oscillator (LO) generation and operate at four times IF, 1272 MHz and 1140 MHz, for Rx and Tx, respectively. Fully integrated, active, analog base-band filters further increase functionality and integration level. In the receiver, a channel select filter, composed of a fifth-order Chebyshev lowpass filter and a first-order all-pass filter, is implemented. In the transmitter, a fifth-order Butterworth low-pass filter functions as a reconstruction filter. Both devices operate on 2.7-3.3-V supply. The designs comply with ARIB W-CDMA and UMTS standards. Each chip is mounted in a small outline, 32-pin, leadless surface mount package.
APA:
Thomann, W., Fenk, J., Hagelauer, R., & Weigel, R. (2001). Fully integrated W-CDMA IF receiver and IF transmitter including IF synthesizer and on-chip VCO for UMTS mobiles. IEEE Journal of Solid-State Circuits, 36(9), 1407-1419. https://doi.org/10.1109/4.944670
MLA:
Thomann, Wolfgang, et al. "Fully integrated W-CDMA IF receiver and IF transmitter including IF synthesizer and on-chip VCO for UMTS mobiles." IEEE Journal of Solid-State Circuits 36.9 (2001): 1407-1419.
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