AX88172ATF datasheet(38/45 Pages) ASIX

38 / 45 page

ASIX ELECTRONICS CORPORATION

AX88772A/AX88172A

Low-pin-count

USB 2.0 to 10/100M Fast Ethernet Controller

9.4.11 USB Transceiver Interface Timing

VCC33A_H/ VCC33A_PLL= 3.0 ~ 3.6 V.

Static Characteristic for Analog I/O Pins (DP/DM):

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

USB 2.0 Transceiver (HS)

Input Levels (Differential Receiver)

VHSDIFF High speed differential input

sensitivity

|VI (DP) –VI (DM)|

Measured at the connection as

an application circuit.

300

VHSCM High speed data signaling

common mode voltage range

-50

500

Squelch detected

100

VHSSQ High speed squelch detection

threshold

No squelch detected

200

Output levels (differential)

VHSOI High speed idle level output

voltage

-10

VHSOL High speed low level output

voltage

-10

VHSOH High speed high level output

voltage

-360

400

VCHIRPJ Chirp-J output voltage

700

1100

VCHIRPK Chirp-K output voltage

-900

-500

Resistance

RDRV

Driver output impedance

Equivalent resistance used as

internal chip

40.5

49.5 Ohm

Termination

VTERM Termination voltage for pull-up

resistor on pin RPU

3.0

3.6

USB 1.1 Transceiver (FS/LS)

Input Levels (Differential Receiver)

VDI

Differential input sensitivity

|VI (DP) –VI (DM)|

0.2

VCM

Differential common mode

voltage

0.8

2.5

Input Levels (Single-Ended Receiver)

VSE

Single ended receiver threshold

0.8

2.0

Output levels

VOL

Low-level output voltage

0.3

VOH

High-level output voltage

2.8

3.6

AX88172ATF Datasheet(PDF) 38 Page - ASIX Electronics Corporation

AX88172ATF Datasheet(HTML) 38 Page - ASIX Electronics Corporation

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