MC145151 - Motorola

MC145151 Parallel-Input PLL Frequency Synthesizer

INPUT PINS fin Frequency Input (Pin 1) Input to the ÷ N portion of the synthesizer. fin 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) These three inputs establish a code defining one of eight possible d.

Features

consist of a reference oscillator, selectable
  –reference divider, digital
  –phase detector, and 14
  –bit programmable divide
  –by
  –N counter. The MC145151
  –2 is an improved
  –performance drop
  –in replacement for the MC145151
  –1. The power consumption has decreased and ESD and latch
  –up performance have improved.
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• Operating Temperature Range:
  – 40 to 85°C Low Power Consumption Through Use of CMOS Technology 3.0 to 9.0 V Supply Range On
  – or Off
  –Chip Reference Oscillator Operation Lock Detect Signal ÷ N Counter Output Available Single Modulus/Parallel Programming 8 User
  –Selectable ÷ R Va.