DS2154
Table 16-2. AC Characteristics—Receive Side
(VDD = 5V ±5%, TA = 0°C to +70°C for DS2154L, TA = -40°C to +85°C for DS2154LN.)
(See Figure 16-4, Figure 16-5, and Figure 16-6.)
PARAMETER
SYMBOL MIN TYP MAX UNITS NOTES
RCLKO Period
tLP
tLH
tLL
tLH
tCL
tCP
tCH
tCL
tSP
tSP
tSH
tSL
tSU
tPW
tSU
tHD
tR, tF
tDD
488
244
244
244
244
488
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
200
200
150
150
1
1
2
2
RCLKO Pulse Width
RCLKO Pulse Width
RCLKI Period
75
75
RCLKI Pulse Width
122
122
50
648
488
3
4
RSYSCLK Period
RSYSCLK Pulse Width
50
RSYNC Setup to RSYSCLK Falling
RSYNC Pulse Width
20
tSH-5
50
RPOSI/RNEGI Setup to RCLKI Falling
RPOSI/RNEGI Hold From RCLKI Falling
RSYSCLK/RCLKI Rise and Fall Times
Delay RCLKO to RPOSO, RNEGO Valid
Delay RCLK to RSER, RDATA, RSIG,
RLINK Valid
20
20
25
50
tD1
50
ns
Delay RCLK to RCHCLK, RSYNC,
RCHBLK, RFSYNC, RLCLK
Delay RSYSCLK to RSER, RSIG Valid
Delay RSYSCLK to RCHCLK, RCHBLK,
RMSYNC, RSYNC
tD2
tD3
tD4
50
50
50
ns
ns
ns
NOTES:
1) Jitter attenuator enabled in the receive path.
2) Jitter attenuator disabled or enabled in the transmit path.
3) RSYSCLK = 1.544MHz.
4) RSYSCLK = 2.048MHz.
79 of 87
ROCHESTER [ Rochester Electronics ]
