TDA8060ATS

INTEGRATED CIRCUITS DATA SHEET TDA8060ATS Satellite ZERO-IF QPSK down-converter Product specification File under Integrated Circuits, IC02 2000 Nov 10 Philips Semiconductors Product specification Satellite ZERO-IF QPSK down-converter FEATURES Direct conversion Quadrature Phase Shift Keying (QPSK) demodulation (Zero IF) 920 to 2200 MHz range On-chip loop-controlled 0 or 90° phase shifter Variable gain on RF input 60 MHz, at −3 dB, bandwidth for baseband I and Q amplifiers Local oscillator output to PLL satellite or terrestrial 5 V supply voltage. APPLICATIONS Direct Broadcasting Satellite (DBS) QPSK demodulation Digital Video Broadcasting (DVB) QPSK demodulation. GENERAL DESCRIPTION TDA8060ATS The direct conversion QPSK demodulator is the front-end receiver dedicated to digital TV broadcasting, satisfying both DVB and DBS TV standards. The 920 to 2200 MHz wide range oscillator covers American, European and Asian satellite bands as well as the SMA-TV US standard. Accurate QPSK demodulation is ensured by the on-chip loop-controlled phase shifter. The Zero-IF concept discards traditional IF filtering and intermediate conversion techniques. It also simplifies the signal path. The baseband I and Q signal bandwidth only depends, to a certain extent, on the external filter used in the application. Optimum signal level is guaranteed by a gain-controlled amplifier at the RF input. The pin AGC sets the gain for both I and Q channels, providing a 37 dB range. The c...