Description

The U6220B is a single chip frequency synthesizer with I2C bus and 3-wire bus control (universal bus). This IC contains a high frequency prescaler, a crystal oscillator, a switchable reference divider, 5 open collector switching outputs and an additional mixer switch output for band switching. The U6220B is especially designed for low cost, high performance 2-band and EasyLink tuners (please see application note ANT017 ‘Semiconductors for TV Tuners - The New EasyLink Concept’).

Features

● 1.3 GHz divide-by-8 prescaler integrated

● EasyLink interface to MOSMIC and mixer IC

● Universal bus:

I2C bus or 3-wire bus

I2C bus software compatible to U6204B

3-wire bus software compatible to U6359B (18 bit)

● I2C bus mode:

5 port outputs (open collector)

4 addresses selectable at Pin 3 for multituner application

● 3-wire bus mode:

4 port outputs (open collector)

Lock-signal output (open collector)

● Low power consumption (typ. 5 V / 20 mA)

● Electrostatic protection according to MIL-STD 883

● SO16 small package