ML145157, ML145151 Datasheet (LANSDALE Semiconductor) - Parallel-Input PLL Frequency Synthesizer Interfaces

ML145157, ML145151, Parallel-Input PLL Frequency Synthesizer Interfaces

INPUT PINS f in Frequency Input (Pin 1) Input to the ÷N portion of the synthesizer.

f in is typically derived from loop VCO and is AC coupled into the device.

For larger amplitude signals (standard CMOS logic levels) DC coupling may be used.

RA0 * RA2 Reference Address Inputs (Pins 5, 6, 7)

www.DataSheet4U.com ML145151 ML145152 ML145155 ML145156 ML145157 ML145158 PLL Frequency Synthesizer Family - CMOS The devices described in this document are typically used as low power, phase locked loop frequency synthesizers.

When combined with an external low pass filter and voltage controlled oscillator, these devices can provide all the remaining functions for a PLL frequency synthesizer operating up to the device's frequency limit.

For higher VCO frequen

ML145157 Features

* consist of a reference oscillator, selectable

* reference divider, digital

* phase detector, and 14

* bit programmable divide

* by

* N counter.

* Operating Temperature Range: TA =

* 40 to 85°C

* Low Power Consumption Through Use of CMOS Technolog