BU90T82_16 Datasheet, PDF (7/29 Pages) Rohm – 27bit LVDS Dual-out Transmitter

BU90T82
Datasheet
AC Characteristics
Table 3. Switching Characteristics（VDDIO=2.5V, VDD=1.8V, Ta=25℃, RL=100Ω, CL=5pF）
Symbol
Parameter
Limits
Min
Typ
Units
Max
t_TCP
Input CLK Period (Figure-4,5)
t_TCH
CLK IN High Time (Figure -4,5)
t_TCL
CLK IN Low Time (Figure -4,5)
t_TS
LVCMOS Data Set up to CLK IN (Figure -4,5)
t_TH
LVCMOS Data Hold from CLK IN (Figure -4,5)
5.75
0.35t_TCP
0.35t_TCP
0.8
0.8
-
0.5t_TCP
0.5t_TCP
-
-
100
ns
0.65t_TCP
ns
0.65t_TCP
ns
-
ns
-
ns
t_LVT
LVDS Transition Time (Figure -3)
-
0.6
1.5
ns
t_TCOP
T_TSUP
T_THLD
t_TCD
CLK OUT Period (Figure -6)
Differential Output
Setup Time
Differential Output
Hold time
CLKOUT^(NOTE2)=174MHz
CLKOUT^(NOTE2)=174MHz
CLK IN to TCLK+/- Delay
(Figure-4,5)
MODE=L,DDRN=H
Others
5.75
-
-
3.5t_TCOP
6.5t_TCOP
-
100
ns
-
120
ps
-
120
ps
-
9.5t_TCOP
ns
-
12.5t_TCOP
ns
t_TOP1
t_TOP0
t_TOP6
t_TOP5
t_TOP4
t_TOP3
t_TOP2
Output Data Position 1 (Figure -6)
Output Data Position 0 (Figure -6)
Output Data Position 6 (Figure -6)
Output Data Position 5 (Figure -6)
Output Data Position 4 (Figure -6)
Output Data Position 3 (Figure -6)
Output Data Position 2 (Figure -6)
- T_THLD
tTCOP _{- TTHLD}
7
2
tTCOP
7
-
T_THLD
3 ^tTCOP - T_THLD
7
4 ^tTCOP - T_THLD
7
5 ^tTCOP - T_THLD
7
6 ^tTCOP - T_THLD
7
0
tTCOP
7
2 ^tTCOP
7
3 ^tTCOP
7
4 ^tTCOP
7
5 ^tTCOP
7
6 ^tTCOP
7
+ T_TSUP
ns
tTCOP _{+ TTSUP}
7
ns
2
tTCOP
7
+
T_TSUP
ns
3
tTCOP
7
+
T_TSUP
ns
4 ^tTCOP + T_TSUP
7
ns
5 ^tTCOP + T_TSUP
7
ns
6 ^tTCOP + T_TSUP
7
ns
t_TPLL
t_DEINT
t_DEH
Phase Locked Loop Set Time (Figure -7)
DE input Period (Figure –10)
DE High time (Figure -10)
-
-
10
ms
4t_TCP
t_TCP*(2n)^(Note3)
-
ns
2t_TCP
t_TCP*(2m)^(Note3)
-
ns
t_DEL
DE Low time (Figure -10)
2t_TCP
-
(Note2) CLKOUT: LVDS Output clock frequency.
(Note3) m, n= integer、refer to Figure 10 (DE Input Timing Diagrams)
-
ns
AC Timing Diagrams
LVDS Output
Tyx+
Tyx-
x=1, 2
y=A,B,C,D,CLK
CL
RL
LVDS Output
Load
Vdiff ^80%
20%
t_LVT
Vdiff=(Tyx+)-(Tyx-)
Figure 3. LVDS Output AC Timing Diagrams
80%
20%
t_LVT
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TSZ22111 • 15 • 001
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TSZ02201-0L2L0H500270-1-2
06.July.2016 Rev.003