THM3561 Datasheet, PDF (8/21 Pages) THine Electronics, Inc. – Stepping Motor Driver with LVDS Interface

THM3561_Rev1.01_E
Electrical Characteristics (continued)
Symbol
fSCL
tDAH
tDAL
tSTAH
tDSU
tDHO
tRDO
tRRPT
Table 9. LVDS Specifications 1 (Forward-Serial input and Reverse-Serial output)
Parameter
Vcc=12V, Ta=25deg. unless otherwise specified.
Conditions
Min.
Typ.
Max. Unit
SCL frequency (*5)
SCL high time
SCL low time (*5)
-
-
-
10
MHz
-
40
-
-
ns
-
50
-
-
ns
Header condition hold time
-
4
-
-
ns
SDA setup time
-
4
-
-
ns
SDA hold time
-
3
-
-
ns
SDR_OUT output delay time (*5) VIO=VREG5, 100ohm terminal
-
20
35
ns
SDR propagation delay time (*5) VIO=VREG5, 100ohm terminal
-
10
20
ns
Table 10. LVDS Specifications 2 (Forward-Serial output and Reverse-Serial input)
Vcc=12V, Ta=25deg. unless otherwise specified.
Symbol
Parameter
Conditions
Min.
Typ.
Max. Unit
tr, tf
SCL/SDA output rise and fall time 100ohm terminal
-
8
12
ns
tSTAH Header condition hold time
-
6
10
20
ns
tDSU
SDA setup time
-
6
10
20
ns
tDHO
SDA hold time
-
5
-
-
ns
tRSU
SDR setup time
-
10
-
-
ns
tRHO
SDR hold time
-
10
-
-
ns
tPWE
End pulse width
-
25
40
70
ns
tPD
SCL propagation delay time
-
-
21
35
ns
(*5) This parameter is applicable to write a register and read sensor signals (shift register mode).
SCL frequency and SCL low time are limited by cascaded stages and wiring length if it use read sensor signal
(address assign mode).
Figure 6. LVDS Timing Chart
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