L8221

DESCRIPTION

The UTC L8221 is a single chip power management and control

solution for LNB’s. The highly integrated solution provides all the

required FET and mixer bias, control detection and decoding, local

oscillator switching and a stable power supply for the IF amplifier

and additional support functions. Being at the heart of the LNB

monitoring the control, power management and environmental

conditions the UTC L8221 is able to provide reliable solution

eliminating effects such as false switching and over loading.

FEATURES

* Single chip LNB bias, control and power management

* 22kHz tone detector with signal rejection for band switching

* Zero Gate FET switching

* Integrated regulated supply for LNB

* Voltage detection for polarization switching

* Programmable mixer and FET bias

* Single pin for supply and control

* No external filtering required

* Temperature compensated protected FET bias

规格书L8221