NB4L16M
2.5V/3.3V, 5 Gb/s Multi Level
Clock/Data Input to CML
Driver / Receiver / Buffer/
Translator with Internal
Termination
http://onsemi.com
MARKING
DIAGRAM*
Description
16
The NB4L16M is a differential driver/receiver/buffer/translator
which can accept LVPECL, LVDS, CML, HSTL, LVCMOS/LVTTL
and produce 400 mV CML output. The device is capable of receiving,
buffering, and translating a clock or data signal that is as small as
75 mV operating up to 3.5 GHz or 5.0 Gb/s, respectively. As such, it is
ideal for SONET, GigE, Fiber Channel and backplane applications
(see Table 6 and Figures 20, 21 22, and 23).
Differential inputs incorporate internal 50 W termination resistors
and accept LVPECL (Positive ECL), LVTTL/LVCMOS, CML, HSTL
or LVDS. The differential 16 mA CML output provides matching
internal 50 W termination, and 400 mV output swing when externally
1
NB4L
16M
ALYWG
G
1
QFN−16
MN SUFFIX
CASE 485G
A
L
Y
W
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
receiver terminated, 50 W to V
(see Figure 19). These features
CC
(Note: Microdot may be in either location)
provide transmission line termination on chip, at the receiver and
driver end, eliminating any use of additional external components.
*For additional marking information, refer to
Application Note AND8002/D.
The V , an internally generated voltage supply, is available to this
BB
device only. For single−ended input configuration, the unused
complementary differential input is connected to V as a switching
BB
reference voltage. The V
reference output can be used also to
V
BB
CC
re−bias capacitor coupled differential or single−ended output signals.
For the capacitor coupled input signals, V should be connected to
V
BB
TD
the V pin and bypassed to ground with a 0.01 mF capacitor. When
TD
R1
R2
R2
R1
50 W
not used V should be left open.
BB
This device is housed in a 3x3 mm 16 pin QFN package.
Application notes, models, and support documentation are available at
www.onsemi.com.
D
Q
Q
D
50 W
Features
V
TD
• Maximum Input Clock Frequency up to 3.5 GHz
• Maximum Input Data Rate up to 5.0 Gb/s
• < 0.7 ps Maximum Clock RMS Jitter
• < 10 ps Maximum Data Dependent Jitter at 2.5 Gb/s
• 220 ps Typical Propagation Delay
• 60 ps Typical Rise and Fall Times
• CML Output with Operating Range:
V
EE
Figure 1. Functional Block Diagram
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
V
CC
= 2.375 V to 3.6 V with V = 0 V
EE
• 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
©
Semiconductor Components Industries, LLC, 2006
1
Publication Order Number:
February, 2006 − Rev. 1
NB4L16M/D