DS90UB925Q-Q1 Datasheet, PDF (11/51 Pages) Texas Instruments – 5 to 85 MHz 24-Bit Color FPD-Link III Serializer With Bidirectional Control Channel

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6.7 Recommended Timing for the Serial Control Bus
Over 3.3V supply and temperature ranges unless otherwise specified.
f_SCL
t_LOW
t_HIGH
t_HD;STA
t_SU:STA
t_HD;DAT
t_SU;DAT
t_SU;STO
t_BUF
t_r
t_f
t_sp
SCL Clock Frequency
SCL Low Period
SCL High Period
Hold time for a start or a
repeated start condition,
See Figure 8
Set Up time for a start or a
repeated start condition,
See Figure 8
Data Hold Time,
See Figure 8
Data Set Up Time,
See Figure 8
Set Up Time for STOP
Condition,
See Figure 8
Bus Free Time
Between STOP and START,
See Figure 8
SCL and SDA Rise Time,
See Figure 8
SCL and SDA Fall Time,
See Figure 8
input Filter
Standard Mode
Fast Mode
Standard Mode
Fast Mode
Standard Mode
Fast Mode
Standard Mode
Fast Mode
Standard Mode
Fast Mode
Standard Mode
Fast Mode
Standard Mode
Fast Mode
Standard Mode
Fast Mode
Standard Mode
Fast Mode
Standard Mode
Fast Mode
Standard Mode
Fast mode
DS90UB925Q-Q1
SNLS407D – APRIL 2012 – REVISED OCTOBER 2014
MIN TYP
0
0
4.7
1.3
4.0
0.6
4.0
0.6
4.7
0.6
0 0.615
0 0.615
250 0.56
100 0.56
4.0
0.6
4.7
1.3
430
430
20
20
50
MAX
100
400
UNIT
kHz
kHz
µs
µs
µs
µs
µs
µs
µs
µs
3.45 µs
0.9 µs
ns
ns
µs
µs
µs
µs
1000 ns
300 ns
300 ns
300 ns
ns
DIN[23:0], ³⁰
HS,VS,DE,
I2S
PCLK
DOUT+
D
DOUT-
0.1 PF
100:
0.1 PF
Differential probe
Input Impedance û 100
k:
C_L ú 0.5 pF
BW û 3.5 GHz
SCOPE
BW û 4 GHz
Single Ended
V_OD
D_OUT-
D_OUT+
V_OD+
V_OD-
| ^VOS
0V
V_OD+
Differential
(D_OUT+) - (D_OUT-)
0V
V_OD-
Figure 1. Serializer V_OD DC Output
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