Datasheet
DS26521 Single T1/E1/J1 Transceiver
242 of 258
Table 12-3. Receiver AC Characteristics
(V
DD
= 3.3V ±5%, T
A
= -40°C to +85°C.) (Note 1) (See Figure 12-6, Figure 12-7, and Figure 12-8.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
(Note 2) 648
RCLK Period t
CP
(Note 3) 488
ns
t
CH
125
RCLK Pulse Width
t
CL
125
ns
(Note 4) 60 648
RSYSCLK Period t
SP
(Note 5) 60 488
ns
t
SH
30
RSYSCLK Pulse Width
t
SL
30
ns
RSYNC Setup to RSYSCLK Falling t
SU
20 t
SH
- 5 ns
RSYNC Pulse Width t
PW
50 ns
Delay RCLK to RSER, RSIG Valid t
D1
50 ns
Delay RCLK to RCHCLK, RSYNC,
RCHBLK, RFSYNC
t
D2
50 ns
Delay RSYSCLK to RSER, RSIG
Valid
t
D3
50 ns
Delay RSYSCLK to RCHCLK,
RCHBLK, RMSYNC, RSYNC
t
D4
50 ns
Note 1: The timing parameters in this table are guaranteed by design (GBD).
Note 2: T1 Mode.
Note 3: E1 Mode.
Note 4: RSYSCLK = 1.544MHz.
Note 5: RSYSCLK = 2.048MHz.










