Datasheet

DS26514 4-Port T1/E1/J1 Transceiver
19-5856; Rev 4; 5/11 293 of 305
Table 13-4. Transmit AC Characteristics
(V
DD
= 3.3V ±5%, T
A
= -40°C to +85°C.) (See Figure 13-8, Figure 13-9, and Figure 13-10.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
TCLKn Period t
CP
(Note 1)
648
ns
(Note 2)
488
TCLKn Pulse Width
t
CH
125
ns
t
CL
125
TSYSCLKn Period t
SP
(Note 3)
60
ns
(Note 4)
60
TSYSCLKn Pulse Width
t
SH
30
ns
t
SL
30
TSYNCn or TSSYNCIOn Setup to
TCLKn or TSYSCLKn Falling
t
SU
10 ns
TSYNCn or TSSYNCIOn Pulse Width t
PW
(Note 5) 50 ns
TSSYNCIOn Pulse Width (Notes 6, 7) t
PW
488
ns
244
122
61
TSERn, TSIGn Setup to TCLKn,
TSYSCLKn Falling
t
SU
10 ns
TSERn, TSIGn Hold from TCLKn,
TSYSCLKn Falling
t
HD
10 ns
Delay TCLKn to TCHBLKn, TCHCLKn,
TSYNCn
t
D2
20 ns
Delay TSYSCLKn to TCHCLKn,
TCHBLKn
t
D3
20 ns
Delay BPCLK1 to TSSYNCIOn t
D5
(Note 6) 5 ns
Note 1: T1 Mode.
Note 2:
E1 Mode.
Note 3:
RSYSCLKn = 1.544MHz.
Note 4:
RSYSCLKn = 2.048MHz.
Note 5: TSSYNCIOn configured as an input (GTCR3.1 = 0).
Note 6:
TSSYNCIOn configured as an output (GTCR3.1 = 1).
Note 7:
Varies depending on the frequency of BPCLK1.