DS90UB903QSQ Datasheet, PDF (13/45 Pages) Texas Instruments – DS90UB903Q/DS90UB904Q 10 - 43MHz 18 Bit Color FPD-Link III Serializer and Deserializer

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DS90UB903Q, DS90UB904Q
SNLS332E – JUNE 2010 – REVISED APRIL 2013
SDA
t_f
SCL
t_LOW
t_r
START
t_HD;STA
t_HD;DAT
t_f
t_HIGH
t_HD;STA
t_BUF
t_r
t_SU;DAT
t_SU;STA
REPEATED
START
t_SU;STO
STOP START
Figure 4. Bidirectional Control Bus Timing
Bidirectional Control Bus DC Characteristics (SCL, SDA) - I²C Compliant
Over recommended supply and temperature ranges unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
V_IH
Input High Level
SDA and SCL
V_IL
Input Low Level Voltage
SDA and SCL
0.7 x
V_DDIO
GND
V_HY
Input Hysteresis
SDA and SCL
>50
I_OZ
TRI-STATE Output Current PDB = 0V, V_OUT = 0V or V_DD
-20
±1
I_IN
Input Current
SDA or SCL, Vin = V_DDIO or GND
-20
±1
C_IN
Input Pin Capacitance
<5
V_OL
SCL and SDA, V_DDIO = 3.0V
Low Level Output Voltage
I_OL = 1.5 mA
SCL and SDA, V_DDIO = 1.71V
I_OL = 1 mA
Max
V_DDIO
0.3 x
V_DDIO
+20
+20
0.36
0.36
AC Timing Diagrams and Test Circuits
Device Pin Name
PCLK
(RFB = H)
Signal Pattern
T
D_IN/R_OUT
Figure 5. “Worst Case” Test Pattern
Units
V
V
mV
µA
µA
pF
V
V
Vdiff
80%
20%
80%
Vdiff = 0V
20%
t_LHT
t_HLT
Vdiff = (D_OUT+) - (D_OUT-)
Figure 6. Serializer CML Output Load and Transition Times
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