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ICS8538BG-31LF

Categoryunclassified   
File Size202KB,14 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
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ICS8538BG-31LF Parametric

Parameter NameAttribute value
Product CategoryIntegrated Device Technology
ManufacturerIDT (Integrated Device Technology, Inc.)
Low Skew, 1-to-8, Crystal
Oscillator/LVCMOS-TO-3.3V LVPECL Fanout Buffer
8538-31
DATA SHEET
General Description
The 8538-31 is a low skew, high performance 1-to-8 Crystal
Oscillator/LVCMOS-to-3.3V LVPECL Fanout Buffer. The 8538-31
has selectable single ended clock or crystal inputs. The single ended
clock input accepts LVCMOS or LVTTL input levels and translate
them to 3.3V LVPECL levels. The output enable is internally
synchronized to eliminate runt pulses on the outputs during
asynchronous assertion/deassertion of the clock enable pin.
Guaranteed output and part-to-part skew characteristics make the
8538-31 ideal for those applications demanding well defined
performance and repeatability.
Features
Eight differential 3.3V LVPECL outputs
Selectable LVCMOS/LVTTL clock or crystal inputs
CLK can accept the following input levels: LVCMOS, LVTTL
Maximum output frequency: 266MHz
Crystal frequency range: 14MHz - 40MHz
Output skew: 50ps (maximum)
Part-to-part skew: 250ps (maximum)
Propagation delay: 2.2ns (maximum)
3.3V operating supply mode
0°C to 70°C ambient operating temperature
Industrial temperature information available upon request
Available in lead-free (RoHS 6) package
Block Diagram
CLK_EN
Pullup
D
Q
LE
CLK
Pulldown
XTAL_IN
0
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
Q4
nQ4
Q5
nQ5
Q6
nQ6
Q7
nQ7
Pin Assignment
CLK
CLK_SEL
CLK_EN
V
EE
nQ7
Q7
V
CCO
nQ6
Q6
nQ5
Q5
V
EE
nQ4
Q4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
CC
XTAL_IN
XTAL_OUT
V
EE
Q0
nQ0
V
CCO
Q1
nQ1
Q2
nQ2
V
CCO
Q3
nQ3
OSC
XTAL_OUT
CLK_SEL
Pulldown
1
28-Lead TSSOP, 173MIL
4.4mm x 9.7mm x 0.925
mm package body
G Package
Top View
8538-31 Rev B 7/10/15
1
©2015 Integrated Device Technology, Inc.
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