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DS42MB200TSQ Datasheet(PDF) 8 Page - Texas Instruments

No. de Pieza. DS42MB200TSQ
Descripción  DS42MB200 Dual 4.25 Gbps 2:1/1:2 CML Mux/Buffer with Transmit Pre-Emphasis and Receive Equalization
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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DS42MB200TSQ Datasheet(HTML) 8 Page - Texas Instruments

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DS42MB200
SNOSAT8G – JANUARY 2006 – REVISED APRIL 2013
www.ti.com
Electrical Characteristics (continued)
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ(1)
Max
Units
POWER DISSIPATION
PD
Power Dissipation
VDD = 3.465V
All outputs terminated by 100
Ω ±1%.
1
W
PREL_[1:0]=0, PRES_[1:0]=0
Running PRBS 27-1 pattern at 4.25 Gbps
AC CHARACTERISTICS
tR
Differential Low to High
Measured with a clock-like pattern at 100 MHz,
80
ps
Transition Time
between 20% and 80% of the differential output
voltage. Pre-emphasis disabled.
tF
Differential High to Low
Transition time is measured with fixture as shown in
Transition Time
80
ps
Figure 6, adjusted to reflect the transition time at the
output pins.
tPLH
Differential Low to High
Measured at 50% differential voltage from input to
0.5
2
ns
Propagation Delay
output.
tPHL
Differential High to Low
0.5
2
ns
Propagation Delay
tSKP
Pulse Skew(5)
|tPHL–tPLH|
20
ps
tSKO
Output Skew(6)(5)
Difference in propagation delay among data paths in
200
ps
the same device.
tSKPP
Part-to-Part Skew(5)
Difference in propagation delay between the same
output from devices operating under identical
500
ps
condition.
tSM
Mux Switch Time
Measured from VIH or VIL of the mux-control or
loopback control to 50% of the valid differential
1.8
6
ns
output.
RJ
Device Random
See Figure 6 for test circuit.
Jitter(7)(5)
Alternating-1-0 pattern.
Pre-emphasis disabled.
At 1.25 Gbps
2
psrms
At 4.25 Gbps
2
psrms
DJ
Device Deterministic
See Figure 6 for test circuit.
Jitter(8)(5)
Pre-emphasis disabled.
At 4.25 Gbps, PRBS7 pattern for DS42MB200@ –
40° to 85°C
35
pspp
DRMAX
Maximum Data Rate(5)
Tested with alternating-1-0 pattern
4.25
Gbps
(5)
Specified by desigh and characterization using statistical analysis.
(6)
tSKO is the magnitude difference in the propagation delays among data paths between switch A and switch B of the same port and
similar data paths between port 0 and port 1. An example is the output skew among data paths from SIA_0± to LO_0±, SIB_0± to
LO_0±, SIA_1± to LO_1± and SIB_1± to LO_1±. Another example is the output skew among data paths from LI_0± to SOA_0±, LI_0± to
SOB_0±, LI_1± to SOA_1± and LI_1± to SOB_1±. tSKO also refers to the delay skew of the loopback paths of the same port and
between similar data paths between port 0 and port 1. An example is the output skew among data paths SIA_0± to SOA_0±, SIB_0± to
SOB_0±, SIA_1± to SOA_1± and SIB_1± to SOB_1±.
(7)
Device output random jitter is a measurement of the random jitter contribution from the device. It is derived by the equation sqrt(RJOUT
2
RJIN
2), where RJ
OUT is the random jitter measured at the output of the device in psrms, RJIN is the random jitter of the pattern generator
driving the device.
(8)
Device output deterministic jitter is a measurement of the deterministic jitter contribution from the device. It is derived by the equation
(DJOUT–DJIN), where DJOUT is the peak-to-peak deterministic jitter measured at the output of the device in pspp, DJIN is the peak-to-
peak deterministic jitter of the pattern generator driving the device.
8
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