TDA5636B

INTEGRATED CIRCUITS DATA SHEET TDA5636B; TDA5637B 9 V VHF hyperband and UHF mixer/oscillator for TV and VCR 3-band tuners Product specification Supersedes data of 1995 August 01 File under Integrated Circuits, IC02 1996 Dec 02 Philips Semiconductors Product specification 9 V VHF hyperband and UHF mixer/oscillator for TV and VCR 3-band 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 the SAW filter directly 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 TDA5636; TDA5637 family (same function with asymmetrical IF output). APPLICATIONS 3-band all channel TV and VCR tuners Any standard. TDA5636B; TDA5637B GENERAL DESCRIPTION The TDA5636B and TDA5637B 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 t...