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CDCLVP2104_16

更新时间: 2024-11-25 02:58:19
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德州仪器 - TI /
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描述
Eight-LVPECL Output, High-Performance Clock Buffer

CDCLVP2104_16 数据手册

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CDCLVP2104  
www.ti.com  
SCAS889A OCTOBER 2009REVISED AUGUST 2011  
Eight LVPECL Output,  
High-Performance Clock Buffer  
Check for Samples: CDCLVP2104  
1
FEATURES  
DESCRIPTION  
The CDCLVP2104 is a highly versatile, low additive  
2
Dual 1:4 Differential Buffer  
Two Clock Inputs  
jitter buffer that can generate eight copies of LVPECL  
clock outputs from two LVPECL, LVDS, or LVCMOS  
inputs for a variety of communication applications. It  
has a maximum clock frequency up to 2 GHz. Each  
buffer block consists of one input that feeds two  
LVPECL outputs. The overall additive jitter  
performance is less than 0.1 ps, RMS from 10 kHz to  
20 MHz, and overall output skew is as low as 15 ps,  
making the device a perfect choice for use in  
demanding applications.  
Universal Inputs Can Accept LVPECL, LVDS,  
LVCMOS/LVTTL  
Eight LVPECL Outputs  
Maximum Clock Frequency: 2 GHz  
Maximum Core Current Consumption: 78 mA  
Very Low Additive Jitter: <100 fs,rms in 10-kHz  
to 20-MHz Offset Range  
The CDCLVP2104 clock buffer distributes two clock  
inputs (IN0, IN1) to eight pairs of differential LVPECL  
clock outputs (OUT0, OUT7) with minimum skew for  
clock distribution. Each buffer block consists of one  
input that feeds two LVPECL clock outputs. The  
inputs can be LVPECL, LVDS, or LVCMOS/LVTTL.  
2.375 V to 3.6 V Device Power Supply  
Maximum Propagation Delay: 450 ps  
Maximum 15 ps Within Bank Output Skew  
LVPECL Reference Voltage, VAC_REF, Available  
for Capacitive-Coupled Inputs  
Industrial Temperature Range: 40°C to +85°C  
The CDCLVP2104 is specifically designed for driving  
50-transmission lines. When driving the inputs in  
single-ended mode, the LVPECL bias voltage  
(VAC_REF) should be applied to the unused negative  
input pin. However, for high-speed performance up to  
2 GHz, differential mode is strongly recommended.  
Available in 5-mm × 5-mm QFN-28 (RHD)  
Package  
ESD Protection Exceeds 2 kV (HBM)  
APPLICATIONS  
The CDCLVP2104 is characterized for operation  
from 40°C to +85°C and is available in a QFN-28,  
5-mm × 5-mm package.  
Wireless Communications  
Telecommunications/Networking  
Medical Imaging  
Test and Measurement Equipment  
VCC  
VCC  
VCC  
OUTP[3...0]  
INP0  
INN0  
4
LVPECL  
OUTN[3...0]  
4
OUTP[7...4]  
INP1  
INN1  
4
LVPECL  
OUTN[7...4]  
4
Reference  
Generator  
VAC_REF[1, 0]  
2
CDCLVP2104  
GND  
GND  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 20092011, Texas Instruments Incorporated  

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