Title :
Gallium arsenide sub-band tuner
Author :
Babbitt, J.G. ; Edwards, J.W. ; Jones, J.J., III ; Sienski, K.T.
Abstract :
The design of a digital subband tuner (SBT) with an embedded GaAs finite-impulse-response (FIR) filter is described. The tuner is used in digital signal processing applications to tune adaptively to narrowband signals for improved signal-to-noise ratio (SNR) and higher signal selectivity against interferers. The SBT performance is maximized using GaAs gate arrays and memory devices designed to support a 400-MHz system clock rate.<>
Keywords :
III-V semiconductors; digital filters; digital integrated circuits; field effect integrated circuits; gallium arsenide; low-pass filters; signal processing equipment; tuning; 400 MHz; GaAs; MESFET technology; SNR improvement; SRAM; adaptive tuning; digital signal processing applications; digital subband tuner; embedded FIR filter; finite-impulse-response; gate arrays; low pass filter; memory devices; narrowband signals; system clock rate; Arithmetic; Baseband; Finite impulse response filter; Frequency conversion; Gallium arsenide; Radio frequency; Receivers; Receiving antennas; Signal processing; Tuners;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 1989. Technical Digest 1989., 11th Annual
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/GAAS.1989.69290
