XR33053 datasheet(7/20 Pages) EXAR

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33052/XR33053/XR33055/XR33058

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REV2B

Electrical Characteristics (Continued)

Driver AC Characteristics - XR33053 and XR33055 (1Mbps)

Unless otherwise noted: VCC = 3.0V to 5.5V, TA = TMIN to TMAX. Typical values are at VCC = 5.0V, TA = 25°C.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

tDPLH

Driver propagation delay (low to high)

CL = 50pF, RL = 54Ω, Figure 7

150

500

tDPHL

Driver propagation delay (high to low)

150

500

|tDPLH-tDPHL|

Differential driver output skew

tDR, tDF

Driver differential output rise or fall time

100

200

300

Maximum data rate

1/tUI, duty cycle 40% to 60%

Mbps

tDZH

Driver enable to output high

CL = 50pF, RL = 500Ω, Figure 8

1000

2500

tDZL

Driver enable to output low

1000

2500

tDHZ

Driver disable from output high

250

tDLZ

Driver disable from output low

250

tDZH(SHDN)

Driver enable from shutdown to

output high

CL = 50pF, RL = 500Ω, Figure 8

2500

4500

tDZL(SHDN)

Driver enable from shutdown to

output low

2500

4500

tSHDN

Time to shutdown

Notes 1 and 2

200

600

Receiver AC Characteristics - XR33053 and XR33055 (1Mbps)

Unless otherwise noted: VCC = 3.0V to 5.5V, TA = TMIN to TMAX. Typical values are at VCC = 5.0V, TA = 25°C.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

tRPLH

Receiver propagation delay (low to high)

CL = 15pF, VID = ±2V, VID rise and

fall times < 15ns, Figure 9

200

tRPHL

Receiver propagation delay (high to low)

200

|tRPLH-tRPHL|

Receiver propagation delay skew

Maximum data rate

1/tUI, duty cycle 40% to 60%

Mbps

tRZH

Receiver enable to output high

CL = 15pF, RL = 1kΩ, Figure 10

tRZL

Receiver enable to output low

tRHZ

Receiver disable from output high

tRLZ

Receiver disable from output low

tRZH(SHDN)

Receiver enable from shutdown to

output high

CL = 15pF, RL = 1kΩ, Figure 10

3500

tRZL(SHDN)

Receiver enable from shutdown to

output low

3500

tSHDN

Time to shutdown

Notes 1 and 2

200

600

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.

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