900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




  ON Semiconductor Electronic Components Datasheet  

NB7VPQ16M Datasheet

1.8V/2.5V CML 12.5 Gbps Programmable Pre-Emphasis Copper/Cable Driver

No Preview Available !

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
www.Dat5a0ShWeette4rUm.cionmation 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 GigaCommFamily of high
performance Data/Clock products with PreEmphasis/Equalization
(PEEQ).
http://onsemi.com
MARKING
DIAGRAM*
16
1
1
QFN16
MN SUFFIX
CASE 485G
A
L
Y
W
G
NB7V
PQ16M
ALYWG
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= PbFree Package
(Note: Microdot may be in either location)
*For additional marking information, refer to
Application Note AND8002/D.
IN
VT
IN
SDIN
SCLKIN
SLOAD
EQ
SDI
DAC
PE
SDOUT
SCLKOUT
Q
Q
Figure 1. Simplified Logic Diagram
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
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
© Semiconductor Components Industries, LLC, 2009
July, 2009 Rev. 0
1
Publication Order Number:
NB7VPQ16M/D


  ON Semiconductor Electronic Components Datasheet  

NB7VPQ16M Datasheet

1.8V/2.5V CML 12.5 Gbps Programmable Pre-Emphasis Copper/Cable Driver

No Preview Available !

MultiLevel Inputs
LVPECL, LVDS, CML
(2) IN
50W
(1) VT
(3) IN 50W
NB7VPQ16M
VCCD
VCC
GND
(15) SDIN
(14) SCLKIN
(13) SLOAD
5Bit Shift Register
EQEN D0 D1 D2 D3
D/A Latch
EQEN
(EQualizer ENable)
4Bit
DAC
0
2:1
MUX
EQ 1
PreEmphasis
Control
Figure 2. Detailed Block Diagram of NB7VPQ16M
SDOUT (6)
SCLKOUT (7)
Q (11)
Q (10)
CML Output
www.DataSheet4U.com
Q Low
Q High
Bit n 1
Q
0V
Q High
Q Low
Bit n
Q High
Q Low
Bit n+1
Q Low
Q High
Bit n+2
PE = 0dB
PE = 12dB
20%
80%
VOD0dB
VODPE
Q
tPE
X130ps
PE = 20log(VODPE/VOD0dB)
VOD0dB Differential Output Voltage without PreEmphasis
VODPE Differential Output Voltage with PreEmphasis
Figure 3. Illustration of Output Waveform Definition
http://onsemi.com
2


Part Number NB7VPQ16M
Description 1.8V/2.5V CML 12.5 Gbps Programmable Pre-Emphasis Copper/Cable Driver
Maker ON Semiconductor
PDF Download

NB7VPQ16M Datasheet PDF






Similar Datasheet

1 NB7VPQ16M 1.8V/2.5V CML 12.5 Gbps Programmable Pre-Emphasis Copper/Cable Driver
ON Semiconductor





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy