TDA5744

INTEGRATED CIRCUITS DATA SHEET TDA5744; TDA5745 Low power mixers/oscillators for hyperband tuners Preliminary specification File under Integrated Circuits, IC02 1998 Mar 09 Philips Semiconductors Preliminary specification Low power mixers/oscillators for hyperband tuners FEATURES Mixers/oscillators for hyperband tuners Balanced mixer with a common emitter input for VHF (single input) Balanced mixer with a common base input for UHF (double input) 4-pin common emitter oscillator for VHF 4-pin common emitter oscillator for UHF Electronic band switch IF amplifier with a low output impedance to drive the SAW filter directly (≈2 kΩ load) Low power, low radiation and small size Pin compatible single-chip synthesizer mixer/oscillator for Full Scale Tuners (FST) are available: TDA6404, TDA6405 and TDA6405A. QUICK REFERENCE DATA SYMBOL VCC ICC Tstg Tamb fi(RF) GV F Vo PARAMETER supply voltage supply current IC storage temperature operating ambient temperature RF input frequency voltage gain noise figure output voltage causing 1% cross modulation in channel VHF band UHF band VHF band UHF band VHF band UHF band VHF band UHF band CONDITIONS operating APPLICATIONS TDA5744; TDA5745 Hyperband tuners for Europe using a 2-band mixer/oscillator in a switched concept. GENERAL DESCRIPTION The TDA5744 and TDA5745 are 2-band mixers/oscillators intended for VHF/UHF and hyperband tuners (see Fig.1). The Integrated Circuits (ICs) include two double balanced mixers and two oscil...