GENERAL DESCRIPTION
The TDA5731M is a monolithic integrated circuit that performs the band A, band B and band C mixer/oscillator functions in TV and VCR tuners. This low power mixer/oscillator circuit requires a power supply of 5 V and is available in a very small package outline. This device gives the designer the capability to design an economical and physically small 3-band tuner. The tuner development time can be drastically reduced by using this device.

FEATURES
• Balanced mixer with a common emitter input for band A (single input)
• 2-pin oscillator for bands A and B
• 3-pin oscillator for band C
• Balanced mixer with a common base input for band B and C (balanced input)
• Local oscillator buffer output for external synthesizer
• SAW filter preamplifier with a low output impedance to drive the SAW filter directly
• Electronic band switch.

APPLICATIONS
• 3-band TV tuners
• 3-band TV front-ends
• 3-band VCR tuners
• 3-band VCR front-ends.