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83940DY-01LF PDF预览

83940DY-01LF

更新时间: 2024-11-22 01:11:43
品牌 Logo 应用领域
艾迪悌 - IDT /
页数 文件大小 规格书
15页 190K
描述
Low Skew, 1-to-18 LVPECL-TO-LVCMOS / LVTTL Fanout Buffer

83940DY-01LF 数据手册

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Low Skew, 1-to-18  
LVPECL-TO-LVCMOS / LVTTL Fanout Buffer  
83940-01  
DATASHEET  
FEATURES  
GENERAL DESCRIPTION  
Eighteen LVCMOS/LVTTL outputs, 23Ω typical output impedance  
Selectable LVCMOS_CLK or LVPECL clock inputs  
The ICS83940-01 is a low skew, 1-to-18 LVPECL-to-LVCMOS/LVTTL  
Fanout Buffer. The ICS83940-01 has two selectable clock inputs. The  
PCLK, nPCLK pair can accept LVPECL, CML or SSTL input levels.The  
single ended clock input accepts LVCMOS or LVTTL input levels.The low  
impedance LVCMOS/LVTTL outputs are designed  
to drive 50Ω series or parallel terminated transmis-  
sion lines. The effective fanout can be increased from 18 to  
36 by utilizing the ability of the outputs to drive two series  
terminated lines.  
LVCMOS_CLK supports the following input types:  
LVCMOS or LVTTL  
PCLK, nPCLK supports the following input types:  
LVPECL, CML, SSTL  
Maximum output frequency: 250MHz  
Output skew: 85ps (maximum)  
The ICS83940-01 is characterized at full 3.3V, full 2.5V  
a n d m i xe d 3 . 3 V i n p u t a n d 2 . 5 V o u t p u t o p e r a t -  
ing supply modes. Guaranteed output and part-to-part skew  
characteristics make the ICS83940-01 ideal for those clock  
distr ibution applications demanding well defined  
performance and repeatability.  
Part-to-part skew: 750ps (maximum)  
Full 3.3V, 2.5V or mixed 3.3V, 2.5V supply modes  
0°C to 70°C ambient operating temperature  
Available in lead-free RoHS compliant package  
BLOCK DIAGRAM  
PIN ASSIGNMENT  
32 31 30 29 28 27 26 25  
Q6  
1
2
3
4
5
6
7
24  
23  
22  
21  
20  
19  
18  
17  
GND  
GND  
CLK_SEL  
Q7  
Q8  
PCLK  
LVCMOS_CLK  
CLK_SEL  
PCLK  
nPCLK  
18  
VDDO  
Q9  
Q0:Q17  
ICS83940-01  
LVCMOS_CLK  
Q10  
Q11  
GND  
nPCLK  
VDD  
VDDO  
8
9
10 11 12 13 14 15 16  
32-Lead LQFP  
Y Pacakge  
7mm x 7mm x 1.4mm package body  
Top View  
83940-01 REVISION A NOVEMBER 4, 2014  
1
©2014 Integrated Device Technology, Inc.  

83940DY-01LF 替代型号

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