Description

The U6225B is a single chip PLL for SAT-TV tuners. It contains on one chip all functions required for PLL control of a VCO. This IC also contains a high frequency prescaler and can handle frequencies up to 2.9 GHz. The U6225B has a fixed reference divider of 512, while the U6223B has a programmable 256/ 512/ 1024 reference divider.

Features

● 2.9 GHz divide-by-16 prescaler integrated

● Universal bus:

I2C-bus or 3-wire-bus

I2C-bus software compatible to U6204B

3-wire-bus software compatible to U6358B (19 bit)

● I2C-bus mode:

5 switching outputs (open collector)

4 addresses selectable at pin 10 for multituner application

● 3-wire-bus mode:

4 switching outputs (open collector)

Locksignal output (open collector)

● Low power consumption (typical 5 V / 23 mA)

● Electrostatic protection according to MIL-STD 883

Benefits

● Only one device for 3-wire bus applications and I2C-bus applications necessary (universal bus)

● High input frequency of 2.9 GHz applicable for all TV-satellites