MB1509 Overview
1995 Edition 3.0a DATA SHEET MB1509 DUAL SERIAL INPUT PLL FREQUENCY SYNTHESIZER DUAL SERIAL INPUT PLL FREQUENCY SYNTHESIZER WITH 400MHz PRESCALER The Fujitsu MB1509 is a 400MHz dual serial input PLL (Phase Locked) frequency synthesizer designed for cordless telephone application. The MB1509 has two PLL circuits on a single chip: one for transmit and the other for reception.