FS6206
AMERICAN MICROSYSTEMS, INC.
Dual-PLL Clock Generator IC
April 2000
1.0
•
•
•
•
•
Features
2.0
Description
Uses inexpensive fundamental-mode crystals
Integrated phase-locked loops (PLL) multiply crystal
frequency to the higher system frequencies needed
3.3V or 5V supply voltage available
Small circuit board footprint (8-pin 0.150
″
SOIC)
Custom frequency selections available - contact your
local AMI Sales Representative for more information
The FS6206 is a monolithic CMOS clock generator IC
designed to minimize cost and component count.
An on-chip crystal oscillator generates the reference fre-
quency and two phase-locked loops are used to generate
precise output / reference frequency ratios. See Table 1
for information on the frequency ratios programmed into
each version of the FS6206.
Table 1: Version Information
Figure 1: Pin Configuration
XIN
VDD
VSS
VSS
1
8
DEVICE
VDD
F
REF
(MHz)
S1
0
0
S0
0
1
0
1
CLK
(MHz)
0.0000
(Stopped Low)
162.5239
(F
REF
* 647 / 57)
173.2151
(F
REF
* 496 / 41)
173.2343
(F
REF
* 1101 / 91)
XOUT
S1
FS6206-01
5.0
14.318182
FS6206
2
3
4
7
6
5
S0
CLK
NOTE: Contact AMI for custom versions
1
1
8-pin (0.150
″
) SOIC
Figure 2: Block Diagram
XIN
Crystal
Oscillator
XOUT
CLK
PLL A
PLL B
SEL[1:0]
FS6206
American Microsystems, Inc. reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
ISO9001
4.26.00
AMI [ AMI SEMICONDUCTOR ]
