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PDF MC100EL14 Data sheet ( Hoja de datos )
| Número de pieza | MC100EL14 | |
| Descripción | 1:5 Clock Distribution Chip | |
| Fabricantes | ON Semiconductor | |
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MC100EL14
5 V ECL 1:5 Clock
Distribution Chip
Description
The MC100EL14 is a low skew 1:5 clock distribution chip designed
explicitly for low skew clock distribution applications. The VBB pin, an
internally generated voltage supply, is available to this device only.
For single-ended input conditions, the unused differential input is
connected to VBB as a switching reference voltage. VBB may also
rebias AC coupled inputs. When used, decouple VBB and VCC via a
0.01 mF capacitor and limit current sourcing or sinking to 0.5 mA.
When not used, VBB should be left open.
The EL14 features a multiplexed clock input to allow for the
distribution of a lower speed scan or test clock along with the high speed
system clock. When LOW (or left open and pulled LOW by the input
pulldown resistor) the SEL pin will select the differential clock input.
The common enable (EN) is synchronous so that the outputs will only
be enabled/disabled when they are already in the LOW state. This
avoids any chance of generating a runt clock pulse when the device is
enabled/disabled as can happen with an asynchronous control. The
internal flip flop 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.
Features
• 50 ps Output-to-Output Skew
• Synchronous Enable/Disable
• Multiplexed Clock Input
• The 100 Series Contains Temperature Compensation
• PECL Mode Operating Range: VCC = 4.2 V to 5.7 V
with VEE = 0 V
• NECL Mode Operating Range: VCC = 0 V
with VEE = −4.2 V to −5.7 V
• Q Output will Default LOW with Inputs Open or at VEE
• Internal Input Pull-down Resistors on All Inputs, Pull-up Resistors
on Inverted Inputs
• This Device is Pb-Free, Halogen Free and is RoHS Compliant
www.onsemi.com
SOIC−20 WB
DW SUFFIX
CASE 751D−05
MARKING DIAGRAM
20
100EL14
AWLYYWWG
1
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb-Free Package
*For additional marking information, refer to
Application Note AND8002/D.
ORDERING INFORMATION
Device
MC100EL14DWG
Package
SOIC−20 WB
(Pb-Free)
Shipping
38 Units/Tube
© Semiconductor Components Industries, LLC, 2016
July, 2016 − Rev. 9
1
Publication Order Number:
MC100EL14/D
1 page  
MC100EL14
Table 7. AC CHARACTERISTICS (VCC = 5.0 V; VEE = 0.0 V or VCC = 0.0 V; VEE = −5.0 V (Note 1))
−40°C
25°C
85°C
Symbol
Characteristic
Min Typ Max Min Typ Max Min Typ Max Unit
fmax Maximum Toggle Frequency 1 1 1 GHz
(See Figure 2, fMAX/Jitter)
tPLH
tPHL
Prop
Delay
CLK to Q (Diff)
CLK to Q (SE)
SCLK to Q
520
470
470
720 580 680 780 630
770 530 680 830 580
770 530 680 830 580
830 ps
880
880
tSKEW
Part-to-Part Skew
Within-Device Skew (Note 2)
200 200 200 ps
50 50 50
tJITTER
tS
tH
VPP
tr
tf
Random Clock Jitter (RMS) @ 1 GHz
(See Figure 2, fMAX/Jitter)
Setup Time EN
Hold Time EN
Input Swing (Note 3)
Output Rise/Fall Times Q (20%−80%)
0
250
150
230
11
0 −133
0
250 140
250
1000 150
1000 150
500 230
500 230
1 ps
1000
500
ps
ps
mV
ps
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit
values are applied individually under normal operating conditions and not valid simultaneously.
1. VEE can vary +0.8 V / −0.5 V. Outputs are terminated through a 50 W resistor to VCC − 2.0 V.
2. Skews are specified for identical LOW-to-HIGH or HIGH-to-LOW transitions.
3. VPP(min) is the minimum input swing for which AC parameters guaranteed. The device has a DC gain of ≈40.
800 2.0
700
600
VOUTPP
Jitter
1.5
500 1.0
400
0.5
300
200
200
400
600
800
1000
1200
FIN (MHz)
Figure 2. Output Voltage Amplitude / RMS Jitter vs.
Input Frequency at Ambient Temperature (Typical)
14000
www.onsemi.com
5
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| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MC100EL14.PDF ] | |
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