
Spread-Spectrum Clock Generators
MAX31C80/MAX31D80
8 ______________________________________________________________________________________
Factory Programmability
The MAX31C80/MAX31D80 can provide a variety of fre-
quencies, which are available to users by ordering the
device according to specifications listed in the Selector
Guide table.
to obtain custom output frequencies for specific input
frequencies not mentioned in the Selector Guide table.
Applications Information
Power-Supply Decoupling
To achieve best results, it is highly recommended that a
decoupling capacitor be used on the IC power-supply
pins. Typical values of decoupling capacitors are 0.01FF
and 0.1FF. Use a high-quality, ceramic, surface-mount
capacitor and mount it as close as possible to the V
CC
pins of the IC to minimize lead inductance.
V
CC
V
CC
VALID
OUTPUT VALID
OUTPUT VALID
t
PUP
XOUT
CLKOUT
Figure 3. Power-Up Timing
Selector Guide
+Denotes a lead(Pb)-free/RoHS-compliant package.
Package Information
For the latest package outline information and land patterns,
go to www.maxim-ic.com/packages. Note that a “+”, “#”, or
“-” in the package code indicates RoHS status only. Package
drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
10 TDFN-EP T1033+1
21-0137
PART
INPUT FREQUENCY
(MHz)
OUTPUT
FREQUENCY (MHz)
DITHER RATE
(kHz)
DITHER TYPE
MAX31C80T-UGQ+ 27 100 31.25 Center
MAX31C80T-002+ 25 63.05 32.05 Center
MAX31D80T-UGQ+ 27 100 31.25 Down
MAX31D80T-003+ 12 12 25 Down
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