Description
The U6239B is a single-chip frequency synthesizer with bidirectional I2C bus control and unidirectional 3-wire bus control, developed for SAT TV-tuner and cable tuner applications.
Features
- D 2.9 GHz divide-by-16 prescaler integrated D UNi-BUS: I2C bus and 3-wire bus I2C bus software compatible to U6223B 3-wire bus software compatible to LC7215 (Sanyo) D I2C bus mode: 4 bidirectional ports (open collector) 2 unidirectional ports (open collector) 5 level ADC or unidirectional port (open collector) Address mode select function (AMS, Pin 3): 3 or 4 addresses selectable via Pin 10 D 3-wire bus mode: 4 unidirectional ports (open collector) Lock output (open collector) D Programmable ref.