© Semiconductor Components Industries, LLC, 2009
October, 2009 − Rev. 1
1 Publication Order Number:
NB7V72M/D
NB7V72M
1.8V / 2.5V Differential 2 x 2
Crosspoint Switch with
CML Outputs Clock/Data
Buffer/Translator
Multi−Level Inputs w/ Internal Termination
Description
The NB7V72M is a high bandwidth, low voltage, fully differential
2 x 2 crosspoint switch with CML outputs. The NB7V72M design is
optimized for low skew and minimal jitter as it produces two identical
copies of Clock or Data operating up to 5 GHz or 6.5 Gb/s,
respectively. As such, the NB7V72M is ideal for SONET, GigE, Fiber
Channel, Backplane and other clock/data distribution applications.
The differential IN/IN
inputs incorporate internal 50 W termination
resistors and will accept LVPECL, CML, or LVDS logic levels (see
Figure 10). The 16 mA differential CML outputs provide matching
internal 50 W terminations and produce 400 mV output swings when
externally terminated with a 50 W resistor to V
CC
(see Figure 11). The
NB7V72M is the 1.8 V/2.5 V CML version of the NB7L72M and is
offered in a low profile 3x3 mm 16−pin QFN package. Application
notes, models, and support documentation are available at
www.onsemi.com.
The NB7V72M is a member of the GigaComm™ family of high
performance clock products.
Features
• Maximum Input Data Rate > 6.5 Gb/s
• Data Dependent Jitter < 15 ps pk−pk
• Maximum Input Clock Frequency > 5 GHz
• Random Clock Jitter < 0.8 ps RMS, Max
• 150 ps Typical Propagation Delay
• 30ps Typical Rise and Fall Times
• Differential CML Outputs, 400 mV peak−to−peak, typical
• Operating Range: V
CC
= 1.71 V to 2.625 V with GND = 0 V
• Internal 50 W Input Termination Resistors
• QFN−16 Package, 3mm x 3mm
• −40°C to +85°C Ambient Operating Temperature
• These are Pb−Free Devices
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.
MARKING
DIAGRAM*
QFN−16
MN SUFFIX
CASE 485G
http://onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
ORDERING INFORMATION
NB7V
72M
ALYWG
G
16
1
IN0
SEL0
SEL1
IN0
+
+
VT0
IN1
IN1
VT1
Q0
Q0
Q1
Q1
0
1
0
1
Figure 1. Logic Diagram
1
