U6239B Datasheet (TEMIC Semiconductors)

U6239B, 2.9 GHz PLL

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.

This IC contains an integrated preamplifier, a high frequency prescaler, a reference divider with multiple programmable

U6239B 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