XR33052 datasheet(7/18 Pages) EXAR

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REV2A

Electrical Characteristics (Continued)

Driver AC Characteristics - XR33058 (20Mbps)

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

tDPHL

Driver propagation delay (high to low)

|tDPLH-tDPHL|

Differential driver output skew

tDR, tDF

Driver differential output rise or fall time

Maximum data rate

1/tUI, duty cycle 40% to 60%

Mbps

tDZH

Driver enable to output high

CL = 50pF, RL = 500Ω, Figure 8

tDZL

Driver enable to output low

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

2200

tDZL(SHDN)

Driver enable from shutdown to

output low

2200

tSHDN

Time to shutdown

Notes 1 and 2

200

600

Receiver AC Characteristics - XR33058 (20Mbps)

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

tRPHL

Receiver propagation delay (high to low)

|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

2200

tRZL(SHDN)

Receiver enable from shutdown to

output low

2200

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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