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
FS6282
FS6282
FS6282
Dual PLL Clock Generator IC
Dual PLL Clock Generator IC
Dual PLL Clock Generator IC
Dual PLL Clock Generator IC
ISO9001
ISO9001
ISO9001
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
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
fXIN (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
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