11 ac characteristics: transmit side, Ac c, Haracteristics – Maxim Integrated DS33R11 User Manual
Page 332: Ransmit, Table 13-16. ac characteristics: transmit side
DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver
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13.11 AC Characteristics: Transmit Side
Table 13-16. AC Characteristics: Transmit Side
(V
DD
= 3.3V
±5%, T
A
PARAMETER SYMBOL
CONDITIONS
MIN
TYP
(E1)
MAX
UNITS
488
(E1)
TCLKT Period
t
CP
648
(T1)
ns
t
CH
20 0.5
t
CP
TCLKT Pulse Width
t
CL
20 0.5
t
CP
ns
488
(E1)
TDCLKI Period
t
LP
648
(T1)
ns
t
LH
20 0.5
t
LP
TDCLKI Pulse Width
t
LL
20
0.5
t
LP
ns
(Note 2)
648
TSYSCLK Period
t
SP
(Note 3)
448
ns
20
0.5
t
SP
TSYSCLK Pulse Width
t
SP
20 0.5
t
SP
ns
TSYNC or TSSYNC Setup to TCLKT or
TSYSCLK Falling
t
SU
20 ns
TSYNC or TSSYNC Pulse Width
t
PW
50 ns
TSERI, TSIG, TDATA, TPOSI, TNEGI
Setup to TCLKT, TSYSCLK, TDCLKI
Falling
t
SU
20 ns
TSERI, TSIG, TDATA Hold from TCLKT
or TSYSCLK Falling
t
HD
20 ns
TPOSI, TNEGI Hold from TDCLKI
Falling
t
HD
20 ns
TCLKT, TDCLKI or TSYSCLK Rise and
Fall Times
t
R
, t
F
25
ns
Delay TCLKO to TPOSO, TNEGO Valid
t
DD
50
ns
Delay TCLKT to TESO, UT-UTDO Valid
t
D1
50
ns
Delay TCLKT to TCHBLK, TCHCLK,
TSYNC
t
D2
50
ns
Delay TSYSCLK to TCHCLK, TCHBLK
t
D3
22
ns
Note 1:
Timing parameters in this table are guaranteed by design (GBD).
Note 2:
TSYSCLK = 1.544MHz.
Note 3:
TSYSCLK = 2.048MHz.