XIO2001IPNP datasheet(17/145 Pages) TI2

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DEVICES

POWER STATE(1)

VOLTS

AMPERES

WATTS

One downstream PCI device

D0 idle

1.5

0.148

0.222

3.3

0.077

0.254

TOTALS:

0.225

0.476

One downstream PCI device

D0 active

1.5

0.157

0.236

3.3

0.165

0.545

TOTALS:

0.322

0.780

One downstream (max voltage)

D0 active

1.65

0.168

0.277

3.6

0.188

0.677

TOTALS:

0.356

0.954

(1)

D0 idle power state: Downstream PCI device is in PCI state D0. Downstream device driver is loaded. Downstream device is not

actively transferring data.

D0 active power state: Downstream PCI device is in PCI state D0. Downstream device driver is loaded. Downstream device is acitvely

transferring data (worst case scenario).

6.6 PCI Express Differential Transmitter Output Ranges

PARAMETER

TERMINALS

MIN

NOM

MAX

UNIT

COMMENTS

UI(1)

Unit interval

TXP, TXN

399.88

400

400.12

Each UI is 400 ps ±300 ppm. UI does not account for SSC

dictated variations.

VTX-DIFF-PP

Differential peak-to-peak output voltage

TXP, TXN

0.8

1.2

VTX-DIFF-PP = 2*|VTXP – VTXN|

VTX-DIFF-PP-LOW

Low-power differential peak-to-peak TX

voltage swing

TXP, TXN

0.4

1.2

VTX-DIFF-PP = 2*|VTXP – VTXN|

VTX-DE-RATIO-3.5dB

TX de-emphasis level ratio

TXP, TXN

This is the ratio of the VTX-DIFF-PP of the second and

following bits after a transition divided by the VTX-DIFF-PP of

the first bit after a transition.

TTX-EYE (2) (3) (4)

Minimum TX eye width

TXP, TXN

0.75

Does not include SSC or RefCLK jitter. Includes Rj at 10–12.

TTX-EYE-MEDIAN-to-MAX-JITTER (2)

Maximum time between the jitter median

and maximum deviation from the median

TXP, TXN

0.125

Measured differentially at zero crossing points after

applying the 2.5 GT/s clock recovery function.

TTX-RISE-FALL (2)

TX output rise/fall time

TXP, TXN

0.125

Measured differentially from 20% to 80% of swing.

BWTX-PLL (6)

Maximum TX PLL bandwidth

TXP, TXN

MHz

Second order PLL jitter transfer bounding function.

BWTX-PLL-LO-3DB (6) (7)

Minimum TX PLL bandwidth

TXP, TXN

1.5

MHz

Second order PLL jitter transfer bounding function.

RLTX-DIFF

Tx package plus Si differential return loss

TXP, TXN

RLTX-CM

Tx package plus Si common mode return

loss

TXP, TXN

Measured over 0.05–1.25 GHz range

ZTX-DIFF_DC

DC differential TX impedance

TXP, TXN

120

Ω

Low impedance defined during signaling.

VTX-CM-AC-P (5)

TX AC common mode voltage

TXP, TXN

ITX-SHORT

Transmitter short-circuit current limit

TXP, TXN

The total current transmitter can supply when shorted to

ground.

VTX-DC-CM

Transmitter DC common-mode voltage

TXP, TXN

3.6

The allowed DC common-mode voltage at the transmitter

pins under any conditions.

VTX-CM-DC-ACTIVE-IDLE-DELTA

Absolute delta of DC common mode

voltage during L0 and electrical idle

TXP, TXN

100

|VTX-CM-DC – VTX-CM-Idle-DC| ≤ 100 mV

VTX-CM-DC = DC(avg) of |VTXP + VTXN|/2 [during L0]

VTX-CM-Idle-DC = DC(avg) of |VTXP + VTXN|/2 [during electrical

idle]

VTX-CM-DC-LINE-DELTA

Absolute delta of DC common mode

voltage between P and N

TXP, TXN

|VTXP-CM-DC – VTXN-CM-DC| ≤25 mV when

VTXP-CM-DC = DC(avg) of |VTXP| [during L0]

VTXN-CM-DC = DC(avg) of |VTXN| [during L0]

www.ti.com

XIO2001

SCPS212J – MAY 2009 – REVISED JANUARY 2021

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