USB3503 datasheet(54/73 Pages) MICROCHIP

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USB3503

DS00001584B-page 54

 2011-2015 Microchip Technology Inc.

Note 10-3

For I2C interface using pullups to less than 2.1V.

Note 10-4

For I2C interface using pullups to greater than 2.1V.

10.5

DC Characteristics: Analog I/O Pins

Low-Level Input Voltage

REFCLK

VIL_REF

-0.3

0.5

High-Level Input Voltage

REFCLK

VIH_REF

1.4

VDD33_BYP+

0.3V

Clock Input Capacitance

REFCLK

CIN

2pF

Low-Level Output Voltage

VOL

@ IOL=12mA

sink current

0.4

Pin Capacitance

Cpin

Output Current Capability

TABLE 10-6:

DC CHARACTERISTICS: ANALOG I/O PINS (DP/DM)

Parameter

Symbol

Conditions

MIN

TYP

MAX

Units

LS/FS FUNCTIONALITY

Input levels

Differential Receiver Input

Sensitivity

VDIFS

| V(DP) - V(DM) |

0.2

Differential Receiver

Common-Mode Voltage

VCMFS

0.8

2.5

Single-Ended Receiver Low

Level Input Voltage

VILSE

0.8

Single-Ended Receiver High

Level Input Voltage

VIHSE

2.0

Single-Ended Receiver

Hysteresis

VHYSSE

0.050

0.150

Output Levels

Low Level Output Voltage

VFSOL

Pull-up resistor on DP;

RL = 1.5kΩ to VDD33_BYP

0.3

High Level Output Voltage

VFSOH

Pull-down resistor on DP,

DM;

RL = 15kΩ to GND

2.8

3.6

Termination

Driver Output Impedance for

ZHSDRV

Steady state drive

40.5

49.5

Ω

Input Impedance

ZINP

RX, RPU, RPD disabled

1.0

MΩ

Pull-dn Resistor Impedance

RPD

Note 10-5

14.25

16.9

kΩ

HS FUNCTIONALITY

Input levels

HS Differential Input Sensitivity VDIHS

| V(DP) - V(DM) |

100

HS Data Signaling Common

Mode Voltage Range

VCMHS

-50

500

HS Squelch Detection

Threshold (Differential)

VHSSQ

100

150

HS Disconnect Threshold

VHSDSC

525

625

TABLE 10-5:

DIGITAL I/O CHARACTERISTICS (CONTINUED)

Parameter

Symbol

Conditions

MIN

TYP

MAX

Units

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