NXP Semiconductors TDA5744
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 oscillators, for the VHF and UHF band, and an IF amplifier. With proper oscillator application and by using a switchable inductor to split the VHF band into two sub-bands (the full VHF/UHF and hyperband) the TV bands can be covered.| Part No. | TDA5744 |
|---|---|
| Datasheet | TDA5744 Download |
| Manufacturer |  NXP Semiconductors |
| Description | Low power mixers/oscillators for hyperband tuners |
| Buy | Stock & Price |
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.
