Overview
The SANYO LA7938 monolithic linear TV/VCR electronic tuner system controller IC integrates all the peripheral circuitry for a TV or VTR tuner, with the exception of the microcontroller, into a single chip.
It incorporates a 2-input/4-output band-switch, 5.0V and 5.75V voltage regulators, comparator, sync signal processing circuit, AFT DC shift circuit and constant current circuit. Each PNP output of the band-switch circuit typically sources 40mA, eliminating the need for external current drivers.
The LA7938 operates from a recommended supply voltage range of 8.7 to 12.5V. It is available in 22-pin shrink DIPs.

FEATUREs
• Integrates all tuner peripheral circuits except controller.
• Band-switch outputs source up to 40mA.
• Regulators each supply up to 50mA.
• 22-pin shrink DIP.