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AS1154 Datasheet PDF : 15 Pages
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AS1156/AS1154
Data Sheet - Electrical Characteristics
Switching Characteristics
(VCC = +3.0 to +3.6V, RL = 100Ω ±1%, CL = 2.5pF (differential), TA = -40 to +85°C
Typical values are at VCC = +3.3V, TA = +25ºC, Unless Otherwise Noted.) 1, 2, 3, 10
Table 4. Switching Characteristics
Parameter
Symbol
Conditions
Differential Propagation Delay,
High-to-Low
tPHLD
Figure 20 on page 11 and
Figure 21 on page 11
Differential Propagation Delay,
Low-to-High
tPLHD
Figure 20 on page 11 and
Figure 21 on page 11
Differential Pulse Skew 4
tSKD1
Figure 20 on page 11 and
Figure 21 on page 11
Differential Channel-to-Channel Skew 5 tSKD2
Figure 20 on page 11 and
Figure 21 on page 11
Differential Part-to-Part Skew 6
tSKD3
Figure 20 on page 11 and
Figure 21 on page 11
Differential Part-to-Part Skew 7
tSKD4
Figure 20 on page 11 and
Figure 21 on page 11
Rise Time
tTLH
Figure 20 on page 11 and
Figure 21 on page 11
Fall Time
tTHL
Figure 20 on page 11 and
Figure 21 on page 11
Maximum Operating Frequency 8, 9
fMAX
Min Typ Max
1.1 1.268 1.5
1.1 1.267 1.5
90 200
110 250
750
900
200 356 800
200 352 800
400
Unit
ns
ns
ps
ps
ps
ps
ps
ps
MHz
Notes:
1. Parameters are guaranteed by design and characterization.
2. CL includes probe and jig capacitance.
3. Signal generator conditions for dynamic tests: VOL = 0, VOH = 2.4V, f = 100MHz, 50% duty cycle, RO = 50Ω,
tR ≤ 1ns, tF ≤ 1ns (0 to 100%).
4. tSKD1 is the magnitude difference of differential propagation delay. tSKD1 = |tPHLD - tPLHD|.
5. tSKD2 is the magnitude difference of tPHLD or tPLHD of one channel to the tPHLD or tPLHD of another channel on
the same device.
6. tSKD3 is the magnitude difference of any differential propagation delays between devices at the same VCC and
within 5°C of each other.
7. tSKD4 is the magnitude difference of any differential propagation delays between devices operating over the
rated supply and temperature ranges.
8. fMAX signal generator conditions: VOL = 0, VOH = 2.4V, 50% duty cycle, RO = 50Ω,
tR ≤ 1ns, tF ≤ 1ns (0 to 100%).
9. Transmitter output criteria: duty cycle = 45 to 55%, VOD ≥ 250mV.
10. For optimum performance matched circuits should be used.
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Revision 1.01
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