TDA5636

INTEGRATED CIRCUITS DATA SHEET TDA5636; TDA5637 9 V VHF, hyperband and UHF mixers- oscillators for TV and VCR 3-band tuners Product specification Supersedes data of 1995 Mar 21 File under Integrated Circuits, IC02 1996 Jun 10 Philips Semiconductors Product specification 9 V VHF, hyperband and UHF mixersoscillators for TV and VCR 3-band tuners FEATURES Balanced mixer with a common emitter input for band A (single input) 2-pin oscillator for bands A and B Balanced mixer with a common base input for bands B and C (balanced input) 4-pin oscillator for band C Local oscillator buffer output for external prescaler SAW filter preamplifier with a low output impedance to drive a 75 Ω load Band gap voltage stabilizer for oscillator stability Electronic band switch External IF filter between the mixer output and the IF amplifier input Pin to pin compatible with TDA5636B; TDA5637B family (same function with symmetrical IF output). APPLICATIONS 3-band all-channel TV and VCR tuners Any standard. TDA5636; TDA5637 GENERAL DESCRIPTION The TDA5636 and TDA5637 are monolithic integrated circuits that perform the mixer/oscillator functions for bands A, B and C in TV and VCR tuners. These low-power mixer/oscillators require a power supply of 9 V and are available in a very small package. The devices give the designer the capability to design an economical and physically small 3-band tuner. They are suitable for European standards, as illustrated in Fig.17, with the foll...