Datasheet

DS2155
230 of 238
37.3 Receive-Side AC Characteristics
AC CHARACTERISTICS: RECEIVE SIDE
(Figure 37-8., Figure 37-9, and Figure 37-10)
(V
DD
= 3.3V ±5%, T
A
= 0°C to +70°C for DS2155L; V
DD
= 3.3V ±5%, T
A
= -40°C to +85°C for DS2155LN.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
488 (E1)
RCLKO Period t
LP
648 (T1)
ns
t
LH
(Note 1) 200 0.5 t
LP
RCLKO Pulse Width
t
LL
(Note 1)
200 0.5 t
LP
ns
t
LH
(Note 2) 150 0.5 t
LP
RCLKO Pulse Width
t
LL
(Note 2) 150 0.5 t
LP
ns
488 (E1)
RCLKI Period t
CP
648 (T1)
ns
t
CH
20 0.5 t
CP
RCLKI Pulse Width
t
CL
20 0.5 t
CP
ns
(Note 3) 648
(Note 4) 488
ns
(Note 5) 244
ns
(Note 6) 122
RSYSCLK Period t
SP
(Note 7) 61
t
SH
20 0.5 t
SP
ns
RSYSCLK Pulse Width
t
SL
20 0.5 t
SP
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
Note 1: Jitter attenuator enabled in the receive path.
Note 2: Jitter attenuator disabled or enabled in the transmit path.
Note 3: RSYSCLK = 1.544MHz
Note 4: RSYSCLK = 2.048MHz
Note 5: RSYSCLK = 4.096MHz
Note 6: RSYSCLK = 8.192MHz
Note 7: RSYSCLK = 16.384MHz