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SY100EP14UK4I Datasheet

  • SY100EP14UK4I

  • 2.5V/3.3V/5V 1:5 LVPECL/PECL/ ECL/HSTL 2GHz CLOCK DRIVER WIT...

  • 9頁

  • MICREL   MICREL

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Micrel
2.5V/3.3V/5V 1:5 LVPECL/PECL/
ECL/HSTL 2GHz CLOCK DRIVER
WITH 2:1 DIFFERENTIAL INPUT MUX
Precision Edge鈩?/div>
SY100EP14U
Precision Edge鈩?/div>
SY100EP14U
FEATURES
s
Guaranteed AC parameters over temp/voltage:
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
> 2GHz f
MAX
< 25ps within-device skew
< 275ps tr/tf time
< 525ps prop delay
ECL Pro鈩?/div>
DESCRIPTION
The SY100EP14U is a high-speed, 2GHz differential
PECL/ECL 1:5 fanout buffer optimized for ultra-low skew
applications. Within device skew is guaranteed to be less
than 25ps over temperature and supply voltage. The wide
supply voltage operation allows this fanout buffer to operate
in 2.5V, 3.3V, and 5V systems. A V
BB
reference is included
for single-supply or AC-coupled PECL/ECL input
applications, thus eliminating resistor networks. When
interfacing to a single-ended or AC-coupled PECL/ECL input
signal, connect the V
BB
pin to the unused /CLK pin, and
bypass the pin to V
CC
through a 0.01碌F capacitor.
The SY100EP14U features a 2:1 input MUX, making it
an ideal solution for redundant clock switchover applications.
If only one input pair is used, the other pair may be left
floating. In addition, this device includes a synchronous
enable pin that forces the outputs into a fixed logic state.
Enable or disable state is initiated only after the outputs are
in a LOW state, thus eliminating the possibility of a 鈥渞unt鈥?/div>
clock pulse.
The SY100EP14U I/O are fully differential and 100K ECL
compatible. Differential 10K ECL logic can interface directly
into the SY100EP14U inputs.
The SY100EP14U is part of Micrel鈥檚 high-speed clock
synchronization family. For applications that require a
different I/O combination, consult the Micrel website at
www.micrel.com, and choose from a comprehensive product
line of high-speed, low-skew fanout buffers, translators, and
clock generators.
s
2:1 Differential Mux input
s
Flexible supply voltage: 2.5V/3.3V/5V
s
Wide operating temperature range: 鈥?0
擄
C to +85
擄
C
s
V
BB
reference for single-ended or AC-coupled
PECL inputs
s
100K ECL compatible outputs
s
Inputs accept PECL/LVPECL/ECL/HSTL logic
s
75k鈩?internal input pull-down resistors
鈩?/div>
s
Available in a 20-Pin TSSOP package
PIN CONFIGURATION/BLOCK DIAGRAM
/CLK1
VBB
CLK0
VCC /EN VCC
CLK1
/CLK0
SEL VEE
20 19 18 17 16 15 14 13 12 11
D
Q
1
0
1
Q0
2
/Q0
3
Q1
4
/Q1
5
Q2
6
/Q2
7
Q3
8
/Q3
9
Q4
10
/Q4
TSSOP
TOP VIEW
Precision Edge and ECL Pro are trademarks of Micrel, Inc.
Rev.: D
Amendment: /0
July 2003
1
Issue Date:

SY100EP14UK4I 產品屬性

  • 74

  • 集成電路 (IC)

  • 時鐘/計時 - 時鐘緩沖器，驅動器

  • 100EP, Precision Edge®, ECL Pro™

  • 扇出緩沖器（分配），多路復用器

  • 1

  • 2:5

  • 是/是

  • HSTL，LVECL，LVPECL

  • LVECL，LVPECL

  • 2GHz

  • 2.37 V ~ 5.5 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 20-TSSOP（0.173"，4.40mm 寬）

  • 20-TSSOP

  • 管件

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