DS2148 Dallas Semiconducotr, DS2148 Datasheet - Page 71

• Manufacturer Part Number: DS2148
• Description: 5V E1/T1/J1 Line Interface
• Manufacturer: Dallas Semiconducotr

AC CHARACTERISTICS—TRANSMIT SIDE (-40°C to +85°C; V
TCLK Period
TCLK Pulse Width
TPOS/TNEG Setup to TCLK
Falling or Rising
TPOS/TNEG Hold From TCLK
Falling or Rising
TCLK Rise and Fall Times
See Figure 12-10
NOTES:
1) E1 Mode.
2) T1 or J1 Mode.
TRANSMIT SIDE TIMING Figure 12-10
NOTES:
1) TCES = 0 (CCR2.1) or CES = 0.
2) TCES = 1 (CCR2.1) or CES = 1.
TPOS, TNEG
TCLK
TCLK
1
2
PARAMETER
t
R
F t
SYMBOL
t
t
R
t
t
t
t
HD
CH
SU
CP
CL
, t
F
t SU
t HD
71 of 75
MIN
75
75
20
20
t
CL
t
CP
TYP
t
488
648
CH
MAX
25
UNITS
DD
ns
ns
ns
ns
ns
ns
ns
= 5.0V ± 5%)
NOTES
1
2