DS90CR485_15 Datasheet, PDF (3/22 Pages) Texas Instruments – 133MHz 48-bit Channel Link Serializer (6.384 Gbps)

DS90CR485
www.ti.com
SNLS143D – FEBRUARY 2003 – REVISED MARCH 2013
Electrical Characteristics⁽¹⁾ (continued)
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol
Parameter
Conditions
I_CCTW
2.5V Supply Current Worst Case
R_L = 100Ω, C_L = 5 pF,
Worst Case Pattern,
100% Pre-emphasis
BAL = Low, Figure 1
f = 66 MHz
f = 100 MHz
f = 133 MHz
3.3V Supply Current Worst Case
R_L = 100Ω, C_L = 5 pF,
Worst Case Pattern,
No Pre-emphasis
BAL = Low, Figure 1,
I_CCTZ
Supply Current Power Down
PD = Low
Min Typ Max Units
160 230 mA
180 270 mA
210 310 mA
68 105 µA
5
50
µA
Recommended Input Requirements
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol
Parameter
TCIP TxCLK IN Period (Figure 4)
TCIH TxCLK in High Time (Figure 4)
TCIL TxCLK in Low Time (Figure 4)
TCIT TxCLK IN Transition Time (Figure 3)
66MHz
133MHz
TXIT D0 to D23 Transition Time
66MHz
133MHz
(1) Typical values are given for V_CC = 2.5V and T_A = +25°C.
Min
7.52
0.35T
0.35T
0.5
0.5
0.5
0.5
Typ ⁽¹⁾
T
0.5T
0.5T
Max
15.15
0.65T
0.65T
2.4
1.2
2.9
1.75
Units
ns
ns
ns
ns
ns
ns
ns
Switching Characteristics
Over recommended operating supply and temperature ranges unless otherwise specified. ⁽¹⁾
Symbol
Parameter
Min
Typ
Max Units
LLHT LVDS Low-to-High Transition Time (No pre-emphasis, PRE = open) (Figure 2)
(2)
0.2
0.4
ns
LVDS Low-to-High Transition Time (max. pre-emphasis, PRE = V_CC) (Figure 2)
(2)
0.12
0.2
ns
LHLT LVDS High-to-Low Transition Time (No pre-emphasis, PRE = open) (Figure 2)
(2)
0.19
0.4
ns
LVDS High-to-Low Transition Time (max. pre-emphasis, PRE = V_CC) (Figure 2)
(2)
0.1
0.2
ns
TCCS TxOUT Channel-to-Channel Skew
TPPOS Transmitter Output Pulse Position. ⁽³⁾
TSTC
THTC
TxIN Setup to CLKIN at 133 MHz ⁽⁴⁾, (Figure 5)
CLKIN to TxIN Hold at 133 MHz ⁽⁴⁾, (Figure 5)
f = 133 MHz
f = 100 MHz
f = 66 MHz
20
ps
−100
+100
ps
−150
+150
ps
−200
+ 200
ps
0.5
ns
0.5
ns
(1) Typical values are given for V_CC = 2.5V and T_A = +25°C.
(2) LLHT and LHLT are measurements of transmitter LVDS data outputs rise and fall time over the recommended frequency range. The
limits are based on bench characterization and Specified By Design (SBD) using statistical analysis.
(3) TPPOS is a measure of transmitter output pulse position in comparison with the ideal pulse position over the recommended frequency
range. The limits are based on bench characterization and Specified By Design (SBD) using statistical analysis.
(4) TSTC and THTC are measurements of transmitter data inputs setup and hold time with clock input, CLKIN. The limits are based on
bench characterization and Specified By Design (SBD) using statistical analysis.
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