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MAX14972

Dual SuperSpeed USB 3.0 Equalizer/Redriver

ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

AC PERFORMANCE (Note 5)

Redriver-Operation Differential

Input Signal Range

USB 3.0 data

150

1200

LFPS Detect Threshold

100

300

mV

Differential Input Return Loss

50MHz P f < 1250MHz

16

18

dB

1250MHz P f < 2500MHz

8

12

Differential Output Return Loss

50MHz P f < 1250MHz

13

16

dB

1250MHz P f < 2500MHz

8

10

Common-Mode Input Return Loss

50MHz P f < 2500MHz

11

13

dB

Common-Mode Output Return

Loss

50MHz P f < 2500MHz

11

13

dB

Differential Output Amplitude

(Transition Bit), Figure 1

OS_ = 0, DE_ = 0

1120

OS_ = 0, DE_ = N.C.

940

OS_ = 0, DE_ = 1

1210

OS_ = 1 or N.C., DE_ = 0

1180

OS_ = 1 or N.C., DE_ = N.C.

1010

OS_ = 1 or N.C., DE_ = 1

1270

Differential Output Amplitude

(Nontransition Bit), Figure 1

DE_ = N.C.

640

DE_ = 0

840

DE_ = 1

940

LFPS Idle Differential Output

Voltage

DIFF -PP

Highpass filter to remove DC offset

30

mV

Voltage Change to Allow Receiver

Detect

Positive voltage to sense receiver

termination

500

mV

Deterministic Jitter

K28.5 pattern, data rate = 5.0Gbps,

EQ_ = not connected

12

Random Jitter

K28.5 pattern, data rate = 5.0Gbps,

EQ_ = not connected

1

Rise/Fall Time

40

ps

Differential Propagation Delay

Propagation delay input to output at 50%

250

ps

LFPS Idle Entry Delay

USB 3.0 LFPS pattern, active state

4

6

ns

LFPS Idle Exit Delay

USB 3.0 LFPS pattern, active state

4

6

ns

USB 3.0 LFPS pattern, dynamic power-

down state

15.6

22.5