Datasheet

____________________________________________________ DS34T101, DS34T102, DS34T104, DS34T108
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14 AC Timing Characteristics
Table 14-1. Input Pin Transition Time Requirements
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Rise Time tr 10 to 90% of DVDDIO 6 ns
Fall Time tf 90 to 10% of DVDDIO 6 ns
14.1 LIU Characteristics
Table 14-2. Transmitter Characteristics
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Output Mark Amplitude
E1 75 ohms
E1 120 ohms
T1 100 ohms
T1 110 ohms
Vm
2.13
2.70
2.40
2.40
2.37
3.00
3.00
3.00
2.61
3.30
3.60
3.60
V
Output Zero Amplitude Vs -0.3 +0.3 V 1
Transmit Amplitude Variation with
Supply
-1% 1%
Table 14-2. Receiver Characteristics
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Cable Attenuation
E1
T1
Attn
43
36
dB
dB
Consecutive Zeros to Declare LOS 192
192
2048
1
NOTES:
1. LOS=loss of signal. 192 Zeros for T1 and T1.231 Specification Compliance. 192 Zeros for E1 and G.775 Specification Compliance. 2048
Zeros for ETSI 300 233 compliance