Rainbow Electronics DS26519 - Manual (Page 297)

DS26519 16-Port T1/E1/J1 Transceiver
297 of 310
Table 13-4. Transmit AC Characteristics
(V
DD
= 3.3V ±5%, T
A
= 0°C to +70°C for DS26519G; T
A
= -40°C to +85°C for DS26519GN.)
(See Figure 13-9 , Figure 13-10 , Figure 13-11 , and Figure 13-12 .)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
(Note 1) 648
TCLKn Period t
CP
(Note 2) 488
ns
t
CH
125
TCLKn Pulse Width
t
CL
125
ns
(Note 3) 60
TSYSCLKn Period t
SP (Note 4) 60
ns
t
SH
30
TSYSCLKn Pulse Width
t
SL
30
ns
TSYNCn or TSSYNCIOn Setup to
TCLKn or TSYSCLKn Falling
t
SU
10 ns
TSYNCn or TSSYNCIOn Pulse Width t
PW
(Note 5) 50 ns
488
244
122
TSSYNCIOn Pulse Width (Notes 6, 7) t
PW
61
ns
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 BPCLKn 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 (GTCR2.1 = 0).
Note 6: TSSYNCIOn configured as an output (GTCR2.1 = 1).
Note 7: Varies depending on the frequency of BPCLKn.