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ICS83905AGT fiches techniques PDF

Integrated Circuit Systems - LOW SKEW/ 1:6 CRYSTAL INTERFACE-TOLVCMOS / LVTTL FANOUT BUFFER

Numéro de référence ICS83905AGT
Description LOW SKEW/ 1:6 CRYSTAL INTERFACE-TOLVCMOS / LVTTL FANOUT BUFFER
Fabricant Integrated Circuit Systems 
Logo Integrated Circuit Systems 





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ICS83905AGT fiche technique
Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS83905
LOW SKEW, 1:6 CRYSTAL INTERFACE-TO-
LVCMOS / LVTTL FANOUT BUFFER
GENERAL DESCRIPTION
ICS
The ICS83905 is a low skew, 1-to-6 LVCMOS /
LVTTL Fanout Buffer and a member of the
HiPerClockS™ HiPerClockS™ family of High Performance Clock
Solutions from ICS. The ICS83905 single ended
clock input accepts LVCMOS or LVTTL input lev-
els. The low impedance LVCMOS/LVTTL outputs are designed
to drive 50series or parallel terminated transmission lines.
The effective fanout can be increased from 6 to 12 by utilizing
the ability of the outputs to drive two series terminated lines.
The ICS83905 is characterized at full 3.3V, 2.5V, and 1.8V,
mixed 3.3V/2.5V, 3.3V/1.8V and 2.5V/1.8V output operating
supply mode. Guaranteed output and part-to-part skew char-
acteristics along with the 1.8V output capabilities makes the
ICS83905 ideal for high performance, single ended applica-
tions that also require a limited output voltage.
FEATURES
6 LVCMOS / LVTTL outputs
Crystal oscillator interface
Output frequency range: 10MHz to 50MHz
Crystal input frequency range: 10MHz to 50MHz
Output skew: 10ps (typical)
5V tolerant enable inputs
Synchronous output enables
Operating supply modes: Full 3.3V, 2.5V and 1.8V,
mixed 3.3Vcore/2.5V or1.8V operating supply, and
mixed 2.5V core/1.8V operating supply
0°C to 70°C ambient operating temperature
Lead-Free package fully RoHS compliant
Pin compatible to MPC905
Industrial version available upon request
BLOCK DIAGRAM
PIN ASSIGNMENT
XTAL_IN
XTAL_OUT
ENABLE 1
ENABLE 2
SYNCHRONIZE
SYNCHRONIZE
BCLK0
BCLK1
BCLK2
BCLK3
BCLK4
BCLK5
XTAL_OUT
ENABLE 2
GND
BCLK0
VDDo
BCLK1
GND
BCLK2
1
2
3
4
5
6
7
8
16 XTAL_IN
15 ENABLE 1
14 BCLK5
1 3 VDDO
12 BCLK4
11 GND
10 BCLK3
9 VDD
ICS83905
16-Lead SOIC
3.9mm x 9.9mm x 1.38mm body package
M Pacakge
Top View
ICS83905
16-Lead TSSOP
4.4mm x 3.0mm x 0.92mm body package
G Pacakge
Top View
GND
GND
BCLK0
VDDO
BCLK1
20 19 18 17 16
1 ICS83905 15
2 20-Lead VFQFN 14
3
4mm x 4mm x 0.9mm
body package 13
4 K Package 12
5 Top View 11
6 7 8 9 10
BCLK5
VDDO
BCLK4
GND
GND
The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial
product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.
83905AM
http://www.icst.com/products/hiperclocks.html
REV. A JANUARY 20, 2005
1

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