AS1156 datasheet(5/15 Pages) AMSCO

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AS1156/AS1154

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Data Sheet

Switching Characteristics

(VCC = +3.0 to +3.6V, RL = 100

Ω ±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 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,

≤ 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,

≤ 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

Differential Propagation Delay,

Low-to-High

tPLHD

Figure 20 on page 11 and

Figure 21 on page 11

1.1

1.267

1.5

Differential Pulse Skew 4

tSKD1

Figure 20 on page 11 and

Figure 21 on page 11

200

Differential Channel-to-Channel Skew 5

tSKD2

Figure 20 on page 11 and

Figure 21 on page 11

110

250

Differential Part-to-Part Skew 6

tSKD3

Figure 20 on page 11 and

Figure 21 on page 11

750

Differential Part-to-Part Skew 7

tSKD4

Figure 20 on page 11 and

Figure 21 on page 11

900

Rise Time

tTLH

Figure 20 on page 11 and

Figure 21 on page 11

200

356

800

Fall Time

tTHL

Figure 20 on page 11 and

Figure 21 on page 11

200

352

800

Maximum Operating Frequency 8, 9

fMAX

400

MHz

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