IDT49FCT3805/A
COMMERCIALANDINDUSTRIALTEMPERATURERANGE
3.3VCMOSBUFFER/CLOCKDRIVER
3.3V CMOS
BUFFER/CLOCK DRIVER
IDT49FCT3805/A
DESCRIPTION:
FEATURES:
The FCT3805 is a 3.3 volt, non-inverting clock driver built using
advanceddualmetalCMOStechnology. Thedeviceconsistsoftwobanks
of drivers, each with a 1:5 fanout and its own output enable control. The
device has a "heartbeat" monitor for diagnostics and PLL driving. The
MON output is identical to all other outputs and complies with the output
specificationsinthisdocument. TheFCT3805offerslowcapacitanceinputs
with hysteresis.
• 0.5 MICRON CMOS Technology
• Guaranteed low skew < 500ps (max.)
• Very low duty cycle distortion < 1.0ns (max.)
• Very low CMOS power levels
• TTL compatible inputs and outputs
• Inputs can be driven from 3.3V or 5V components
• Two independent output banks with 3-state control
• 1:5 fanout per bank
• "Heartbeat" monitor output
• VCC = 3.3V ± 0.3V
TheFCT3805isdesignedforhighspeedclockdistributionwheresignal
quality and skew are critical. The FCT3805 also allows single point-to-
pointtransmissionlinedrivinginapplicationssuchasaddressdistribution,
where one signal must be distributed to multiple recievers with low skew
and high signal quality.
• Available in SSOP, SOIC, and QSOP packages
NOTE: EOL for non-green parts to occur on 5/13/10 per
PDNU-09-01
For more information on using the FCT3805 with two different input
frequencies on bank A and B, please see AN-236.
FUNCTIONALBLOCKDIAGRAM
PINCONFIGURATION
VCCA
OA1
OA2
1
2
VCCB
OB1
20
19
OEA
5
OA1 - OA5
INA
3
4
18
17
OB2
OB3
OA3
GNDA
GNDB
OB4
16
15
14
13
12
11
5
6
OA4
OA5
5
INB
OB1 - OB5
OB5
7
OEB
GNDQ
OEA
INA
MON
OEB
8
9
MON
INB
10
SOIC/ SSOP/ QSOP
TOP VIEW
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COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGE
AUGUST 2009
1
c
2005 Integrated Device Technology, Inc.
DSC-3102/6
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
