PI6C1201CSX

Description

The PI6C1201 is an advanced CMOS clock generator designed specifically to support pixel clock generation in low-cost laser printers. Capable of generating highly stable clock frequencies up to 70 MHz, this device supports printer engines with dot resolutions of 1,200 dpi and above. Page speeds may range from 4 pages per minute to better than 60 pages per minute.

Features

• Supports laser printer pixel rates up to 40 MHz.
70 MHz for "C" speed version.
• Jitter less than 300ps.
• Easily programmable frequency selections via parallel
interface. Post divider (R) designed to load only during
the Beam Detect interval.
• Source clock input can be from crystal or oscillator.
• Source clock rates from 8 MHz up to 22 MHz (from crystal or
oscillator).
• Active LOW asynchronous reset input for synchronization
with engine via Beam Detect input.
• Synchronized Beam Detect Output to support external state
machines.
• Glitch-less clock output after Beam Detect.
• Supports dynamic frequency changes on a line-per-line basis.
• Mixed line resolution supports half-toning and gray scale
operations.
• Minimizes controller memory utilization (low-resolution text
mixed with high-resolution images).
• On-chip VCO loop filter (no external components).
• On-chip crystal oscillator (modified Pierce).
• Single 5V power supply.
• Low power consumption.
• 20-pin wide body (300-mil) SOIC package (S)