TLE4997
User’s Manual
TLE4997 Programming
User’s Manual
9
v01_01, 2019-08
Figure 3-8 Frame Timing
Table 3-4
Electrical and Timing Specification of the Programming Interface
Parameter
Symbol
Values
Unit
Note / Test Condition
Min.
Typ.
Max.
V
DD
clock high level
V
DD,CLKHI
8.8
9.4
10
V
specification of V
DD
operating
range does not apply to clock
V
DD
clock low level
V
DD,CLKLOW
4.8
5
5.2
V
OUT data out high level
V
O,OHIGH
V
DD
- 2 –
V
DD,CLKHI
V
OUT follows V
DD
if ‘high’
OUT data out low level
V
O,OLOW
0
–
2.0
V
OUT data in high level
V
O,IHIGH
3.0
V
DD
V
DD
+ 0.1
V
OUT data in low level
V
O,ILOW
-0.2
0.0
0.1
V
OUT data input current
I
O
-50
–
50
mA
1)
1) capacity of external driver, especially during initial interface access (to overwrite ratiometric device output).
V
DD
clock high time
t
CH
2.4
50
100
µs
5k...250kBit/s
V
DD
clock low time
t
CL
1.6
4.0
100
µs
5k...250kBit/s
Data in setup time
t
SU
1.5
2.0
–
µs
to rising V
DD
Data in hold time
t
HLD
2.3
3.0
–
µs
after rising V
DD
Data out settling time
t
SET
–
1.0
1.7
µs
after rising V
DD
Time between frames
t
MIN
10.0
–
–
µs
Buffer off delay
t
DEL
10.0
25.0
–
µs
2)
2) to reduce collisions with the ext. driver, it must be switched on slower than t
DEL
min. and switched off faster than t
HLM max.
;
charge/discharge behaviour on V
OUT
depends also on capacitive output load.
Buffer on delay
t
HLM
–
5.0
10.0
µs
2)3)
3) to reach again a valid and stable ratiometric V
OUT
signal state, please check the power-on time in the data sheet.
VDD
Vout
LSB
MSB
t
cl
t
ch
t
su
t
hld
t
del
t
hlm
LSB
t
set
t
set
t
m in
init
frame
data read
frame
