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DS92LV8028 Datasheet, PDF (4/16 Pages) National Semiconductor (TI) – 8 Channel 10:1 Serializer
Serializer Switching Characteristics (Continued)
Over recommended operating supply and temperature ranges unless otherwise specified.(Notes 2, 3)
Symbol
Parameter
Conditions
Pin/Freq.
Min
Typ
RL = 100Ω
DINn(0-9), TCLK,
tSD
Serializer Delay
CL=10pF to GND
DOn+, DOn-
tTCP + 3.2
tTCP + 3.5
Figure 7
tICR
tMCR
Individual Channel
Power up Time
Master Power up
Time
RL = 100Ω,
CL=10pF to GND
TCLK, DOn+,
DOn-, PWDNn
TCLK, DOn+,
DOn-, MS_PWDN
Figure 6
60*tTCP
510*tTCP
63*tTCP
@Speed Test Enable
tSTE
Time
@Speed Test Disable
tSTD
Time
RL = 100Ω
RL = 100Ω
BIST_ACT,
BIST_SEL (0:3),
TCLK, DOn+,
DOn-
10*tTCP
7*tTCP
tSKEW
tRJIT
Channel to Channel
Skew
Random Jitter
RL = 100Ω,
CL=10pF to GND
RL = 100Ω,
CL=10pF to GND
(Note 5)
(Note 6)
25 MHz
66 MHz
25MHz
66MHz
130
80
18.4
7.5
RL = 100Ω,
25MHz
−130
−45
tDJIT
Deterministic Jitter, CL=10pF to GND
Figure 9
(Note 5)
66MHz
−190
−92
(Note 7)
Max
Units
tTCP + 6
ns
70*tTCP
ns
513*tTCP
ns
ns
ns
ps
ps
20.7
ps
8.8
ps
40
ps
−40
ps
Note 1: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices
should be operated at these limits. The table of “Electrical Characteristics” specifies conditions of device operation.
Note 2: Typical values are given for VCC = 3.3V and TA = +25˚C.
Note 3: Current into device pins is defined as positive. Current out of device pins is defined as negative. Voltages are referenced to ground except VOD, and ∆VOD
which are differential voltages.
Note 4: BIST_SEL pins are pull-up internally.
Note 5: tLLHT, tLHLT, tDJIT and tRJIT specifications are Guaranteed by Design using statistical analysis.
Note 6: tRJIT specification is the rms jitter measurement of the serializer output when the device is transmitting SYNC pattern.
Note 7: tDJIT specification is measured with the serializer output transmitting PRBS pattern from the internal BIST mode. It is a measurement of the center
distribution of 0V (differential) crossing in comparsion with the ideal bit position. See Figure 9
AC Timing Diagrams and Test Circuits
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FIGURE 1. ’Worst Case Icc Test Pattern
4