NB7L14M Datasheet, PDF (1/11 Pages) ON Semiconductor – 2.5V/3.3VDifferential 1:4 Clock/Data Fanout Buffer/Translator with CML Outputs and Internal Termination

NB7L14M
2.5V/3.3V Differential 1:4
Clock/Data Fanout Buffer/
Translator with CML
Outputs and Internal
Termination
Description
The NB7L14M is a differential 1−to−4 clock/data distribution chip
with internal source terminated CML output structures, optimized for
minimal skew and jitter. Device produces four identical output copies
of clock or data operating up to 8 GHz or 12 Gb/s, respectively. As
such, NB7L14M is ideal for SONET, GigE, Fiber Channel, Backplane
and other clock/data distribution applications.
Inputs incorporate internal 50 W termination resistors and accept
LVPECL, CML, LVCMOS, LVTTL, or LVDS (See Table 6).
Differential 16 mA CML outputs provide matching internal 50 W
terminations, and 400 mV output swings when externally terminated
with 50 W to V_CC (See Figure 14).
The device is offered in a low profile 3x3 mm 16−pin QFN package.
Application notes, models, and support documentation are available at
www.onsemi.com.
Features
• Maximum Input Clock Frequency up to 8 GHz Typical
• Maximum Input Data Rate up to 12 Gb/s Typical
• < 0.5 ps of RMS Clock Jitter
• < 10 ps of Data Dependent Jitter
• 30 ps Typical Rise and Fall Times
• 110 ps Typical Propagation Delay
• 6 ps Typical Within Device Skew
• Operating Range: V_CC = 2.375 V to 3.465 V with V_EE = 0 V
• CML Output Level (400 mV Peak−to−Peak Output) Differential
Output Only
• 50 W Internal Input and Output Termination Resistors
• Functionally Compatible with Existing 2.5 V/3.3 V LVEL, LVEP, EP
and SG Devices
• Pb−Free Packages are Available
Q0
V_TCLK
Q0
50 W
Q1
CLK
Q1
CLK
Q2
50 W
Q2
V_TCLK
Q3
Figure 1. Logic Diagram
Q3
http://onsemi.com
QFN−16
MN SUFFIX
CASE 485G
MARKING
DIAGRAM*
16
1
NB7L
14M
ALYWG
G
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
*For additional marking information, refer to
Application Note AND8002/D.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
© Semiconductor Components Industries, LLC, 2006
1
January, 2006 − Rev. 1
Publication Order Number:
NB7L14M/D