3 receive side ac characteristics, 40 ° c to +85 ° c; v – Maxim Integrated DS21Q55 User Manual
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34.3 Receive Side AC Characteristics
AC CHARACTERISTICS–RECEIVE SIDE
(0
°
C to +70
°
C; V
DD
= 3.3V
±
5% for DS21Q55;
-
40
°
C to +85
°
C; V
DD
= 3.3V
±
5% for DS21Q55N)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
RCLKO Period
t
LP
488 (E1)
648 (T1)
ns
ns
RCLKO Pulse Width
t
LH
t
LL
200
200
.5 t
LP
.5 t
LP
ns
ns
1
1
RCLKO Pulse Width
t
LH
t
LL
150
150
.5 t
LP
.5 t
LP
ns
ns
2
2
RCLKI Period
t
CP
488 (E1)
648 (T1)
ns
RCLKI Pulse Width
t
CH
t
CL
20
20
.5 t
CP
.5 t
CP
ns
ns
RSYSCLK Period
t
SP
t
SP
t
SP
t
SP
t
SP
648
488
244
122
61
ns
ns
3
4
5
6
7
RSYSCLK Pulse Width
t
SH
t
SL
20
20
.5 t
SP
.5 t
SP
ns
ns
RSYNC Setup to RSYSCLK
Falling
t
SU
20
ns
RSYNC Pulse Width
t
PW
50
ns
RPOSI/RNEGI Setup to RCLKI
Falling
t
SU
20
ns
RPOSI/RNEGI Hold From RCLKI
Falling
t
HD
20
ns
RSYSCLK, RCLKI Rise and Fall
Times
t
R
, t
F
22
ns
Delay RCLKO to RPOSO,
RNEGO Valid
t
DD
50
ns
Delay RCLK to RSER, RDATA,
RSIG, RLINK Valid
t
D1
50
ns
Delay RCLK to RCHCLK,
RSYNC, RCHBLK, RFSYNC,
RLCLK
t
D2
50
ns
Delay RSYSCLK to RSER, RSIG
Valid
t
D3
22
ns
Delay RSYSCLK to RCHCLK,
RCHBLK, RMSYNC, RSYNC
t
D4
22
ns
See Figures 37-8 to 37-10