FS6284 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – Dual PLL Clock Generator IC

     X  T
)6
'XDO 3// &ORFN *HQHUDWRU ,&
March 2000
$GYDQFH ,QIRUPDWLRQ
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
2.0 Description
The FS6284 is a monolithic CMOS clock generator IC
designed to minimize cost and component count in digital
video/audio systems.
All frequencies are ratiometrically derived from the crystal
oscillator frequency. The locking of all the output fre-
quencies together can eliminate unpredictable artifacts in
video systems and reduce electromagnetic interference
(EMI) due to frequency harmonic stacking.
Figure 1: Pin Configuration
SEL ¹
XIN ²
XOUT ³
VDD ⁴
8 _CLKA
7 _CLKB
6 _VSS
5 _CLKC
8-pin (0.150″) SOIC
Table 1: Crystal / Output Frequencies
DEVICE
SEL
fXIN
(MHz)
CLKA
(MHz)
CLKB
(MHz)
CLKC
(MHz)
FS6284-01
0
14.31818
14.31818
(fXIN)
1
NOTE: Contact AMI for custom PLL frequencies
48.000
(fXIN* 352 / 105)
81.000
(fXIN* 198 / 35)
70.000
(fXIN* 44 / 9)
Figure 2: Block Diagram
XIN
XOUT
CRYSTAL
OSC.
SEL
CLKA
PLL
DIVIDER
ARRAY
CLKB
PLL
CLKC
FS6284
This document contains information on a preproduction product. Specifications and information herein are subject to change without notice.
,62
3.28.00