L2572

DESCRIPTION

As a wideband PLL FM demodulator, the UTC L2572 is 

intended for application in satellite tuners primarily. 

The device includes all the necessary elements, with 

external oscillator sustaining network and the exception of 

loop feedback components, to form a PLL system operating 

at frequencies up to 800MHz completely. 

An AFC with window adjust (whose output signal can be 

used to correct for any frequency drift at the head end local 

oscillator) is provided. 

FEATURES 

* Constant voltage and constant current control 

* Single chip PLL system for wideband FM demodulation 

* Simple low component count application 

* Allows for application of threshold extension 

* Fully balanced low radiation design 

* High operating input sensivity 

* Improved VCO stability with variations in supply or 

temperature 

* AGC detect and bias adjust 

* 75Ω video output drive with low distortion levels 

* Dynamic self biasing analog AFC 

* Full ESD Protection 

规格书L2572