www.austriamicrosystems.com Revision 1.01 5 - 15
AS1156/AS1154
Data Sheet - E l e ct r i c a l C h a r a c t er i s t i c s
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
Notes:
1. Parameters are guaran teed by design and characterizati on.
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 ot h er.
7. tSKD4 is the magnitude difference of any differential propagation delays between devi ces 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.
Table 4. Switching Characteristics
Parameter Symbol Conditions Min Typ Max Unit
Differential Propagation Delay,
High-to-Low tPHLD Figure 20 on page 11 and
Figure 21 on page 11 1.1 1.268 1.5 ns
Differential Propagation Delay,
Low-to-High tPLHD Figure 20 on page 11 and
Figure 21 on page 11 1.1 1.267 1.5 ns
Differential Pulse Skew 4 tSKD1 Figure 20 on page 11 and
Figure 21 on page 11 90 200 ps
Differential Channel-to-Channel Skew 5tSKD2 Figure 20 on page 11 and
Figure 21 on page 11 110 250 ps
Differential Part-to-Part Skew 6tSKD3 Figure 20 on page 11 and
Figure 21 on page 11 750 ps
Differential Part-to-Part Skew 7tSKD4 Figure 20 on page 11 and
Figure 21 on page 11 900 ps
Rise Time tTLH Figure 20 on page 11 and
Figure 21 on page 11 200 356 800 ps
Fall Time tTHL Figure 20 on page 11 and
Figure 21 on page 11 200 352 800 ps
Maximum Operating Frequency 8, 9 fMAX 400 MHz