ISO7720FDWVR datasheet(13/42 Pages) TI1

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ISO7720, ISO7721

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SLLSEP3C – NOVEMBER 2016 – REVISED JULY 2018

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(1)

Also known as pulse skew.

(2)

tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same

direction while driving identical loads.

(3)

tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same

direction while operating at identical supply voltages, temperature, input signals and loads.

6.15 Switching Characteristics—5-V Supply

VCC1 = VCC2 = 5 V ± 10% (over recommended operating conditions unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

tPLH, tPHL

Propagation delay time

See Figure 15

PWD

Pulse width distortion(1) |tPHL – tPLH|

0.5

4.9

tsk(o)

Channel-to-channel output skew time(2)

Same direction channels

tsk(pp)

Part-to-part skew time(3)

4.5

Output signal rise time

See Figure 15

1.8

3.9

Output signal fall time

1.9

3.9

tDO

Default output delay time from input power loss

Measured from the time VCC goes below 1.7

V. See Figure 16

0.1

0.3

μs

tie

Time interval error

216 – 1 PRBS data at 100 Mbps

(1)

Also known as pulse skew.

(2)

tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same

direction while driving identical loads.

(3)

tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same

direction while operating at identical supply voltages, temperature, input signals and loads.

6.16 Switching Characteristics—3.3-V Supply

VCC1 = VCC2 = 3.3 V ± 10% (over recommended operating conditions unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

tPLH, tPHL

Propagation delay time

See Figure 15

PWD

Pulse width distortion(1) |tPHL – tPLH|

0.5

tsk(o)

Channel-to-channel output skew time(2)

Same direction channels

4.1

tsk(pp)

Part-to-part skew time(3)

4.5

Output signal rise time

See Figure 15

0.7

Output signal fall time

0.7

tDO

Default output delay time from input power loss

Measured from the time VCC goes

below 1.7 V. See Figure 16

0.1

0.3

μs

tie

Time interval error

216 – 1 PRBS data at 100 Mbps

(1)

Also known as pulse skew.

(2)

tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same

direction while driving identical loads.

(3)

tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same

direction while operating at identical supply voltages, temperature, input signals and loads.

6.17 Switching Characteristics—2.5-V Supply

VCC1 = VCC2 = 2.5 V ± 10% (over recommended operating conditions unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

tPLH, tPHL

Propagation delay time

See Figure 15

7.5

18.5

PWD

Pulse width distortion(1) |tPHL – tPLH|

0.5

5.1

tsk(o)

Channel-to-channel output skew time(2)

Same direction channels

4.1

tsk(pp)

Part-to-part skew time(3)

4.6

Output signal rise time

See Figure 15

3.5

Output signal fall time

3.5

tDO

Default output delay time from input power loss

Measured from the time VCC goes

below 1.7 V. See Figure 16

0.1

0.3

μs

tie

Time interval error

216 – 1 PRBS data at 100 Mbps

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