TUSB2551 datasheet(9/18 Pages) TI

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AC ELECTRICAL CHARACTERISTICS

(1)

TUSB2551

ADVANCED UNIVERSAL SERIAL BUS TRANSCEIVER

SCES667 – FEBRUARY 2008

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

DRIVER CHARACTERISTICS (LOW SPEED)

CL = 200 pF, See Figure 2

Transition rise time

300

CL = 600 pF

CL = 200 pF, See Figure 2

Transition fall time

300

CL = 600 pF

LRFM

Rise/fall time matching

TR, TF

125

VCRS

Output signal crossover voltage

1.3

DRIVER CHARACTERISTICS (FULL SPEED)

Transition rise time

CL = 50 pF, See Figure 2

Transition fall time

CL = 50 pF, Figure 2

FRFM

Rise/fall time matching

(TR, TF)

111.1

VCRS

Output signal crossover voltage

1.3

TRANSCEIVER TIMING (FULL SPEED)

tPVZ

OE to receiver 3-state delay

See Figure 1

tPZD

Receiver 3-state to transmit delay

See Figure 1

tPDZ

OE to driver 3-state delay

See Figure 1

tPZV

Driver 3-state to receive delay

See Figure 1

tPLH

VP, VM to D+, D– propagation delay

See Figure 4

tPHL

tPLH

D+, D– to RCV propagation delay

See Figure 3

tPHL

tPLH

D+, D– to VP, VM propagation delay

See Figure 3

tPHL

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Specification for packaged product only

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