AMERICAN MICROSYSTEMS, INC.
October 1999
This document contains information on a preproduction product. Specifications and information herein are subject to change without notice.
10.1.99
FS6282
Dual PLL Clock Generator IC
ISO9001
1.0 Features
• Dual phase-locked loop (PLL) device with three out-
put clock frequencies
• 3.3V supply voltage
• Small circuit board footprint (8-pin 0.150″ SOIC)
• Custom frequency selections available - contact your
local AMI Sales Representative for more information
Figure 1: Pin Configuration
1 8
2
3
4
7
6
5
CLKA
VSS
XIN
XOUT
VDD
CLKC
CLKB
OE
FS6
282
8-pin (0.150″) SOIC
2.0 Description
The FS6282 is a monolithic CMOS clock generator IC
designed to minimize cost and component count in digital
video/audio systems.
Two high-resolution phase-locked loops generate two
output clocks (CLKA and CLKB) through an array of post-
dividers. All frequencies are ratiometrically derived from
the crystal oscillator frequency. The locking of all the out-
put frequencies together can eliminate unpredictable ar-
tifacts in video systems and reduce electromagnetic in-
terference (EMI) due to frequency harmonic stacking.
Table 1: Crystal / Output Frequencies
DEVICE f
XIN
(MHz) CLKA (MHz) CLKB (MHz) CLKC (MHz)
FS6282-03 20.000 20.000 48.000 8.000
NOTE: Contact AMI for custom PLL frequencies
Figure 2: Block Diagram
CRYSTAL
OSC.
FS6282
XOUT
XIN
CLKC
CLKA
DIVIDER
ARRAY
PLL
PLL
CLKB
OE