SP5026 Overview
The SP5026 is a programming variant of the SP5510, allowing the design of one tuner with either 12C bus or 3-wire bus format depending on which device is inserted. The SP5026, when used with a TV varicap tuner, forms a plete phase locked loop tuning system. The circuit consists of a divider-by-8 prescaler with its own preamplifier and at 5-bit programmable divider controlled by a serially-loaded data register.