XR

9/19

REV1A

Electrical Characteristics

Driver AC Characteristics - XR33156 and XR33158 (20Mbps)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Driver prop. delay (low to high)

Figure 8

25

ns

Driver prop. delay (high to low)

25

ns

Differential driver output skew

5

ns

Driver differential output

rise or fall time

15

ns

Maximum data rate

20

Mbps

Driver enable to output high

Figure 9

60

ns

Driver enable to output low

60

ns

Driver disable from output high

250

ns

Driver disable from output low

250

ns

Driver enable from shutdown to

output high

Figure 9

2200

ns

Driver enable from shutdown to

output low

2200

ns

Time to shutdown

Notes 1 and 2

50

200

600

ns

Receiver AC Characteristics - XR33156 and XR33158 (20Mbps)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Receiver prop. delay (low to high)

Figure 10

60

ns

Receiver prop. delay (high to low)

60

ns

Receiver propagation delay skew

5

ns

Maximum data rate

20

Mbps

Receiver enable to output high

Figure 11, for XR33156

50

ns

Receiver enable to output low

50

ns

Receiver disable from output high

50

ns

Receiver disable from output low

50

ns

Receiver enable from shutdown to

output high

Figure 11, for XR33156

2200

ns

Receiver enable from shutdown to

output low

2200

ns

Time to shutdown

Notes 1 and 2, for XR33156

50

200

600

ns

NOTES:

1. The transceivers are put into shutdown by bringing RE high and DE low simultaneously for at least 600ns. If the control inputs are in this state for less than 50ns,

the device is guaranteed to not enter shutdown. If the enable inputs are held in this state for at least 600ns, the device is ensured to be in shutdown. Note that the receiver

and driver enable times increase significantly when coming out of shutdown.

2. This spec is guaranteed by design and bench characterization.