AX99100 datasheet(53/70 Pages) ASIX

53 / 70 page

AX99100

PCIe to Multi I/O Controller

PCIe Specifications

4.2

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Unit Interval

Each UI is 400 ps +/-300 ppm. UI

does not account for SSC dictated

variations

399.88

400

400.12

Input Levels

VRX-DIFF-PP Differential RX peak-peak

voltage

2*|VRX(DIP)-VRX(DIN)|, measured

at the connection of the near-end

receiver

175

1200

VIDLE

Electrical idle detect threshold

Peak voltage

175

VRX-CM-AC

RX AC common-mode voltage Peak voltage

150

TRX-EYE

Minimum Receiver Eye Width

0.4

RLRX-DIFF

Differential Return Loss

Measured over 50 MHz to 1.25

GHz.

RLRX-cm

Common Mode Return Loss

Measured over 50 MHz to 1.25

GHz.

Output Levels

VTX-DIFF-PP Differential TX peak-peak

voltage swing

2*|VTX(DOP)-VTX(DON)|, measured

at the connection of the near-end

transmitter

800

1200

TTX-EYE

Transmitter eye, including all

jitter sources

SSC or Refclk jitter is not included

0.75

VTX-IDLE-AC Electrical idle differential peak

output voltage

VT-D-R

Amount of voltage change

allowed during the receiver

detection

The total amount of voltage

change during TX-Detect-RX

600

VTX-CM-AC

TX AC common-mode voltage

Measured as the AC RMS value

VTX-DEM-ratio TX de-emphasis level

Non-transient bits are driven out

with degrading amplitude

-3.0

-4.0

FBEACON

A signal of wakeup mechanism Signal frequency

2.0

MHz

Resistance

RRX

Built-in receiver input

impedance

RTX

Built-in driver output impedance

Capacitance

CTX

AC coupling capacitor

200

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