Si8450/51/52/55

Rev. 1.5

11

Si845xBx

Maximum Data Rate

0

—

150

Mbps

Minimum Pulse Width

—

—

6.0

ns

Propagation Delay

See Figure 2

3.0

6.0

9.5

ns

Pulse Width Distortion

PWD

See Figure 2

—

1.5

2.5

ns

Propagation Delay Skew2

—2.0

3.0

ns

Channel-Channel Skew

—0.5

1.8

ns

All Models

Output Rise Time

See Figure 2

—4.3

6.1

ns

Output Fall Time

See Figure 2

—3.0

4.3

ns

Common Mode Transient

Immunity

CMTI

—

25

—

kV/µs

Enable to Data Valid3

See Figure 1

—

5.0

8.0

ns

Enable to Data Tri-State3

See Figure 1

—

7.0

9.2

ns

Start-up Time3,4

—15

40

µs

Table 4. Electrical Characteristics (Continued)

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Notes:

1. The nominal output impedance of an isolator driver channel is approximately 85

, ±40%, which is a combination of the

value of the on-chip series termination resistor and channel resistance of the output driver FET. When driving loads

where transmission line effects will be a factor, output pins should be appropriately terminated with controlled

impedance PCB traces.

the same supply voltages, load, and ambient temperature.

3. See "3. Errata and Design Migration Guidelines" on page 26 for more details.

4. Start-up time is the time period from the application of power to valid data at the output.