MC100LVEP34
2.5V / 3.3V ECL
梅2, 梅4, 梅8
Clock Generation Chip
The MC100LVEP34 is a low skew
梅2, 梅4, 梅8
clock generation chip
designed explicitly for low skew clock generation applications. The
internal dividers are synchronous to each other, therefore, the common
output edges are all precisely aligned. The V
BB
pin, an internally
generated voltage supply, is available to this device only. For
single鈭抏nded input conditions, the unused differential input is
connected to V
BB
as a switching reference voltage. V
BB
may also
rebias AC coupled inputs. When used, decouple V
BB
and V
CC
via a
0.01
mF
capacitor and limit current sourcing or sinking to 0.5 mA.
When not used, V
BB
should be left open.
The common enable (EN) is synchronous so that the internal
dividers will only be enabled/disabled when the internal clock is
already in the LOW state. This avoids any chance of generating a runt
clock pulse on the internal clock when the device is enabled/disabled
as can happen with an asynchronous control. An internal runt pulse
could lead to losing synchronization between the internal divider
stages. The internal enable flip鈭抐lop is clocked on the falling edge of
the input clock; therefore, all associated specification limits are
referenced to the negative edge of the clock input.
Upon start鈭抲p, the internal flip鈭抐lops will attain a random state; the
master reset (MR) input allows for the synchronization of the internal
dividers, as well as multiple LVEP34s in a system. Single鈭抏nded CLK
input operation is limited to a V
CC
鈮?/div>
3.0 V in PECL mode, or V
EE
鈮?/div>
鈭?.0
V in NECL mode.
Features
http://onsemi.com
MARKING
DIAGRAMS*
16
16
1
SO鈭?6
D SUFFIX
CASE 751B
1
100LVEP34G
AWLYWW
16
16
1
TSSOP鈭?6
DT SUFFIX
CASE 948F
A
L, WL
Y
W, WW
G or
G
100
VP34
ALYWG
G
1
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
35 ps Output鈭抰o鈭扥utput Skew
Synchronous Enable/Disable
Master Reset for Synchronization
The 100 Series Contains Temperature Compensation.
PECL Mode Operating Range: V
CC
= 2.375 V to 3.8 V
with V
EE
= 0 V
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb鈭扚ree Package
(Note: Microdot may be in either location)
*For additional marking information, refer to
Application Note AND8002/D.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
鈥?/div>
NECL Mode Operating Range: V
CC
= 0 V
with V
EE
=
鈭?.375
V to
鈭?.8
V
鈥?/div>
Open Input Default State
鈥?/div>
LVDS Input Compatible
鈥?/div>
Pb鈭扚ree Packages are Available
漏
Semiconductor Components Industries, LLC, 2006
November, 2006
鈭?/div>
Rev. 9
1
Publication Order Number:
MC100LVEP34/D
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