
Semiconductor Components Industries, LLC, 2009
July, 2009 Rev. 0
1
Publication Order Number:
NB7VPQ16M/D
NB7VPQ16M
1.8V/2.5V CML 12.5 Gbps
Programmable Pre-Emphasis
Copper/Cable Driver with
Selectable Equalizer Receiver
MultiLevel Inputs w/ Internal Termination
Description
The NB7VPQ16M is a high performance single channel
programmable PreEmphasis CML Driver with a selectable Equalizer
Receiver that operates up to 14 Gbps typical with a 1.8 V or 2.5 V
power supply. When placed in series with a Data/Clock path, the
NB7VPQ16M inputs will compensate the degraded signal transmitted
across a FR4 PCB backplane or cable interconnect. Therefore, the
serial data rate is increased by reducing InterSymbol Interference
(ISI) caused by losses in copper interconnect or long cables.
The PreEmphasis buffer is controlled using a serial bus via the
Serial Data In (SDIN) and Serial Clock In (SCLKIN) control inputs
and contains circuitry which provides sixteen programmable
PreEmphasis settings to select the optimal output compensation
level.
These selectable output levels will handle various backplane lengths
and cable lines. The first four SDIN bits (D3:D0) will digitally select
0 dB through 12 dB typical of deemphasis (see Table
1).For cascaded applications, the shifted SDIN and SCLKIN signals
are presented at the SDOUT and SCLKOUT pins.
The 5thbit (LSB) of the serial data bits allows for enabling the
equalization function of the receiver.
The differential Data / Clock inputs incorporate a pair of internal
50
W termination resistors, in a 100 W centertapped configuration,
via the VT pin and will accept LVPECL, CML or LVDS logic levels.
This feature provides transmission line termination onchip, at the
receiver end, eliminating external components.
The NB7VPQ16M is a member of the GigaComm
Family of high
performance Data/Clock products with PreEmphasis/Equalization
(PEEQ).
Features
Maximum Input Data Rate > 12.5 Gbps
Maximum Input Clock Frequency > 8 GHz
Drives Up To 18inches of FR4
(16) Programmable Output Deemphasis Levels; 0 dB
through 12 dB
200 ps Typical Propagation Delay
Differential CML Outputs, 400 mV PeaktoPeak,
Typical (PE = 0 dB)
Operating Range: VCC = 1.71 V to 2.625 V, GND = 0 V
Internal Output Termination Resistors, 50 W
QFN16 Package, 3 mm x 3 mm
40°C to +85°C Ambient Operating Temperature
These are PbFree Devices
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= PbFree Package
*For additional marking information, refer to
Application Note AND8002/D.
MARKING
DIAGRAM*
QFN16
MN SUFFIX
CASE 485G
http://onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page
15 of this data sheet.
ORDERING INFORMATION
16
NB7V
PQ16M
ALYWG
G
1
Figure 1. Simplified Logic Diagram
(Note: Microdot may be in either location)
SDI
DAC
PE
EQ
SDOUT
SCLKOUT
Q
SDIN
SCLKIN
SLOAD
Q
IN
VT
1