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SK100EL15W 데이터시트 PDF




Semtech Corporation에서 제조한 전자 부품 SK100EL15W은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 SK100EL15W 기능
기능 1:4 Clock Distribution
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SK100EL15W 데이터시트, 핀배열, 회로
HIGH-PER.ORMANCE PRODUCTS
Description
.eatures
SK10/100EL15W
1:4 Clock
Distribution
The SK10/100EL15W is a low skew 1:4 clock distribution
chips designed explicitly for low skew clock distribution
applications. This device is fully compatible with
MC10EL15 & MC100EL15. The device can be driven by
either a differential or single-ended ECL or, if positive power
supplies are used, PECL input signal. If a single-ended
input is to be used, the VBB output should be connected
to the CLK* input and bypassed to VCC via a 0.01 µF
capacitor. The EL15W provides a VBB output for either
single-ended use or as a DC bias for AC coupling to the
device. The VBB pin should be used only as a bias for
EL15W as its current sink/source capability is limited.
Whenever used, the VBB pin should be bypassed to VCC
via a 0.01 µF capacitor.
Extended Supply Voltage Range: (VEE = –5.5V to
–3.0V, VCC = 0V) or (VCC = + 3.0V to +5.5V,
VEE=0V)
50 ps Output-to-Output Skew
Synchronous Enable/Disable
Multiplexed Clock Input
75KInternal Input Pull-Down Resistors
Fully Compatible with MC10EL15 and
MC100EL15
Specified Over Industrial Temperature Range:
–40oC to +85oC
ESD Protection of >4000V
Available in 16-Pin SOIC Package
The EL15W 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 pull-down 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.
PIN Description
Pin Name
CLK
SCLK
EN*
SEL
VBB
.unction
Differential Clock Inputs
Synchronous Clock Input
Synchronous Enable
Clock Select Input
Reference Output Voltage
.unctional Block Diagram
Q0–Q3, Q0*-Q3* Differential Clock Outputs
Q0 1
Q0* 2
Q1 3
Q1* 4
Q2 5
Q2* 6
Q3 7
Q3* 8
QD
16 VCC
15 EN*
14 SCLK
1
13 CLK
0
12 CLK*
11 VBB
10 SEL
9 VEE
Revision 1/February 12, 2001
CLK SCLK SEL
LX L
HX
L
XLH
X HH
XXX
EN*
L
L
L
L
H
Q
L
H
L
H
L*
*On next negative transition of CLK or SCLK.
Truth Table
1 www.semtech.com




SK100EL15W pdf, 반도체, 판매, 대치품
SK10/100EL15W
HIGH-PER.ORMANCE PRODUCTS
AC Characteristics (continued)
Notes:
1. 10EL circuits are designed to meet the DC specifications shown in the table after thermal equilibrium
has been established. The circuit is in a test socket or mounted on a printed circuit board and
transverse airflow greater than 500 lfpm is maintained. Outputs are terminated through a 50resistor
to VCC 2.0V.
2. 100K circuits are designed to meet the DC specification shown in the table where transverse airflow
greater than 500 lfpm is maintained.
3. Minimum input swing for which AC parameters guaranteed.
4. CMR range is referenced to the most positive side of the differential input signal. Normal operation is
obtained if the high level falls within the specified range and the peak-to-peak voltage lies between
VPP(min) and 1V. The lower end of the CMR range varies 1:1 with VEE and is equal to VEE + 1.3V for
VPP < 500 mV and VEE + 1.5V for VPP > 500 mV.
5. Voltages referenced to VCC = 0V (ECL mode).
6. For standard ECL DC specifications, refer to the ECL Logic Family Standard DC Specifications Data
Sheet.
7. For part ordering descriptions, see HPP Part Ordering Information Data Sheet.
Ordering Information
Ordering Code
SK10EL15WD
SK10EL15WDT
SK100EL15WD
SK100EL15WDT
SK10EL15WU
SK100EL15WU
Package ID
16-SOIC
16-SOIC
16-SOIC
16-SOIC
Die
Die
Temperature Range
Industrial
Industrial
Industrial
Industrial
Contact Information
Division Headquarters
10021 Willow Creek Road
San Diego, CA 92131
Phone: (858) 695-1808
FAX: (858) 695-2633
Semtech Corporation
High-Performance Products Division
Revision 1/February 12, 2001
4
Marketing Group
1111 Comstock Street
Santa Clara, CA 95054
Phone: (408) 566-8776
FAX: (408) 727-8994
www.semtech.com

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부품번호상세설명 및 기능제조사
SK100EL15W

1:4 Clock Distribution

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