DS90UH925Q Datasheet, PDF (9/47 Pages) Texas Instruments – 720p 24-bit Color FPD-Link III Serializer with HDCP

DS90UH925Q
Recommended Timing for the Serial Control Bus
Over 3.3V supply and temperature ranges unless otherwise specified.
Symbol
Parameter
Conditions
f_SCL
SCL Clock Frequency
Standard Mode
Fast Mode
t_LOW
SCL Low Period
Standard Mode
Fast Mode
t_HIGH
SCL High Period
Standard Mode
Fast Mode
t_HD;STA
Hold time for a start or a
repeated start condition
Figure 8
Standard Mode
Fast Mode
t_SU:STA
Set Up time for a start or a
repeated start condition
Figure 8
Standard Mode
Fast Mode
t_HD;DAT
Data Hold Time
Figure 8
Standard Mode
Fast Mode
t_SU;DAT
Data Set Up Time
Figure 8
Standard Mode
Fast Mode
t_SU;STO
Set Up Time for STOP
Condition, Figure 8
Standard Mode
Fast Mode
Bus Free Time
Standard Mode
t_BUF
Between STOP and START,
Figure 8
Fast Mode
t_r
SCL & SDA Rise Time,
Figure 8
Standard Mode
Fast Mode
t_f
SCL & SDA Fall Time,
Figure 8
Standard Mode
Fast mode
Min Typ Max Units
0
100 kHz
0
400 kHz
4.7
us
1.3
us
4.0
us
0.6
us
4.0
us
0.6
us
4.7
us
0.6
us
0
3.45 us
0
0.9
us
250
ns
100
ns
4.0
us
0.6
us
4.7
us
1.3
us
1000 ns
300 ns
300 ns
300 ns
DC and AC Serial Control Bus Characteristics
Over 3.3V supply and temperature ranges unless otherwise specified. (Note 2, Note 3, Note 4)
Symbol
Parameter
Conditions
Min Typ Max Units
V_IH
V_IL
V_HY
V_OL
I_in
t_R
t_F
t_SU;DAT
t_HD;DAT
t_SP
C_in
Input High Level
Input Low Level Voltage
Input Hysteresis
SDA RiseTime – READ
SDA Fall Time – READ
Set Up Time — READ
Hold Up Time — READ
Input Filter
Input Capacitance
SDA and SCL
SDA and SCL
0.7*
V_DD33
V_DD33
V
GND
0.3*
V_DD33
V
>50
mV
SDA, IOL = 1.25mA
0
0.36
V
SDA or SCL, Vin = V_DD33 or GND
-10
+10 µA
430
ns
SDA, RPU = 10kΩ, Cb ≤ 400pF, Figure 8
20
ns
Figure 8
560
ns
Figure 8
615
ns
50
ns
SDA or SCL
<5
pF
Copyright © 1999-2012, Texas Instruments Incorporated
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