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DS92LV18 Datasheet, PDF (4/20 Pages) National Semiconductor (TI) – 18-Bit Bus LVDS Serializer/Deserializer - 15-66 MHz
Serializer Switching Characteristics (Continued)
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
DO ± HIGH to
tHZD
TRI-STATE Delay
2.3
DO ± LOW to
tLZD
TRI-STATE Delay
Figure 7 (Note 4)
1.9
tZHD
DO ± TRI-STATE to
HIGH Delay
RL = 100Ω,
CL=10pF to GND
1.0
DO ± TRI-STATE to
tZLD
LOW Delay
1.0
tSPW
tPLD
tSD
tRJIT
SYNC Pulse Width
Serializer PLL Lock Time
Serializer Delay
Random Jitter
Figure 9,
RL = 100Ω
Figure 8,
RL = 100Ω
Figure 10 , RL = 100Ω
Room Temp., 3.3V,
66 MHz
5*tTCP
510*tTCP
tTCP + 1.0
tTCP + 2.0
4.5
tDJIT
Deterministic Jitter
Figure 16, (Note 8)
15 MHz
66 MHz
-430
-40
Deserializer Timing Requirements for REFCLK
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
tRFCP
tRFDC
tRFCP /
tTCP
tRFTT
REFCLK Period
REFCLK Duty Cycle
Ratio of REFCLK to
TCLK
REFCLK Transition Time
15.2
T
40
50
0.95
Deserializer Switching Characteristics
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol
Parameter
Conditions
Pin/Freq.
Min
Typ
tRCP
Receiver out Clock
Period
tRCP = tTCP
RCLK
15.2
tRDC
tCLH
tCHL
tROS
tROH
RCLK Duty Cycle
CMOS/TTL
Low-to-High
Transition Time
CMOS/TTL
High-to-Low
Transition Time
ROUT (0-9) Setup
Data to RCLK
ROUT (0-9) Hold
Data to RCLK
RCLK
45
CL = 15 pF
Figure 4
Figure 12
ROUT(0-17),
LOCK,
RCLK
0.35*tRCP
−0.35*tRCP
50
2.2
2.2
0.5*tRCP
−0.5*tRCP
Max
10
10
10
10
6*tTCP
1024*tTCP
tTCP + 4.0
190
70
Max
66.7
60
1.05
6
Max
66.7
55
4
4
Units
ns
ns
ns
ns
ns
ns
ns
ps
(RMS)
ps
ps
Units
ns
%
ns
Units
ns
%
ns
ns
ns
ns
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