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DS90C383A_03 Datasheet, PDF (3/11 Pages) National Semiconductor (TI) – +3.3V Programmable LVDS Transmitter 24-Bit Flat Panel Display (FPD) Link-65 MHz +3.3V LVDS Transmitter 24-Bit Flat Panel Display (FPD) Link-65 MHz
Recommended Transmitter Input Characteristics
Over recommended operating supply and temperature ranges unless otherwise specified
Symbol
Parameter
TCIT
TxCLK IN Transition Time (Figure 5 )
TCIP
TxCLK IN Period (Figure 6 )
TCIH
TxCLK IN High Time (Figure 6 )
TCIL
TxCLK IN Low Time (Figure 6)
Min
14.7
0.35T
0.35T
Typ
T
0.5T
0.5T
Max
5
55.6
0.65T
0.65T
Units
ns
ns
ns
ns
Transmitter Switching Characteristics
Over recommended operating supply and temperature ranges unless otherwise specified
Symbol
Parameter
LLHT
LVDS Low-to-High Transition Time (Figure 4 )
LHLT
LVDS High-to-Low Transition Time (Figure 4 )
TPPos0 Transmitter Output Pulse Position for Bit 0 (Figure 11 ) (Note 5)
f = 65 MHz
TPPos1 Transmitter Output Pulse Position for Bit 1
TPPos2 Transmitter Output Pulse Position for Bit 2
TPPos3 Transmitter Output Pulse Position for Bit 3
TPPos4 Transmitter Output Pulse Position for Bit 4
TPPos5 Transmitter Output Pulse Position for Bit 5
TPPos6 Transmitter Output Pulse Position for Bit 6
TPPos0 Transmitter Output Pulse Position for Bit 0 (Figure 11 ) (Note 5)
f = 40 MHz
TPPos1 Transmitter Output Pulse Position for Bit 1
TPPos2 Transmitter Output Pulse Position for Bit 2
TPPos3 Transmitter Output Pulse Position for Bit 3
TPPos4 Transmitter Output Pulse Position for Bit 4
TPPos5 Transmitter Output Pulse Position for Bit 5
TPPos6 Transmitter Output Pulse Position for Bit 6
TPPos0 Transmitter Output Pulse Position for Bit 0 (Figure 11 ) (Note 5)
f = 32.5 MHz
TPPos1 Transmitter Output Pulse Position for Bit 1
TPPos2 Transmitter Output Pulse Position for Bit 2
TPPos3 Transmitter Output Pulse Position for Bit 3
TPPos4 Transmitter Output Pulse Position for Bit 4
TPPos5 Transmitter Output Pulse Position for Bit 5
TPPos6 Transmitter Output Pulse Position for Bit 6
TSTC
TxIN Setup to TxCLK IN (Figure 6 )
THTC
TxIN Hold to TxCLK IN (Figure 6 )
TCCD
TxCLK IN to TxCLK OUT Delay (Figure 7 ) TA=25˚C,VCC=3.3V
TxCLK IN to TxCLK OUT Delay (Figure 7 )
TJCC
Transmitter Jitter Cycle-to-Cycle (Figures 12, 13 ) (Note 6)
f = 65 MHz
f = 40 MHz
f = 32.5 MHz
TPLLS Transmitter Phase Lock Loop Set (Figure 8 )
TPDD
Transmitter Power Down Delay (Figure 10 )
Min
−0.30
1.90
4.10
6.30
8.50
10.70
12.90
−0.35
3.22
6.79
10.36
13.93
17.51
21.08
−0.40
4.00
8.40
12.80
17.20
21.60
26.00
2.5
0
3
3
Typ
0.75
0.75
0
2.20
4.40
6.60
8.80
11.00
13.20
0
3.57
7.14
10.71
14.28
17.86
21.43
0
4.40
8.80
13.20
17.60
22.00
26.40
175
240
260
Max
1.5
1.5
0.20
2.40
4.60
6.80
9.00
11.20
13.40
0.35
3.92
7.49
11.06
14.63
18.21
21.78
0.40
4.80
9.20
13.60
18.00
22.40
26.80
5.5
7.0
225
380
400
10
100
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ps
ps
ps
ms
ns
Note 5: The Minimum and Maximum Limits are based on statistical analysis of the device performance over process, voltage, and temperature ranges. This
parameter is functionality tested only on Automatic Test Equipment (ATE).
Note 6: The Limits are based on statistical analysis of the device performance over process, voltage, and temperature ranges. Output jitter is measured with a
cycle-to-cycle jitter of 3ns applied to the input clock signal. A jitter event of 3ns, represents worse case jump in the clock edge from most Graphics controller VGA
chips currently available. This parameter is used when calculating system margin (RSKM). See Figures 12, 13 and AN-1059.
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