4-Port USB 2.0 Controller

Datasheet

Table 6.4 - DC Electrical Characteristics: Analog I/O Pins (DP/DM)

(VDD1.8 =1.74 to 2.0V; VDD3.3 =3.0 to 3.6V; VSS = 0V; TA = 0 oC to +70oC; unless otherwise specified.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

FS FUNCTIONALITY

 

 

 

 

 

 

Input levels

 

 

 

 

 

 

Differential Receiver Input

VDIFS

VI(DP) - VI(DM)

0.2

 

 

V

Sensitivity

 

 

 

 

 

 

Differential Receiver

VCMFS

 

0.8

 

2.5

V

Common-Mode Voltage

 

 

 

 

 

 

Single-Ended Receiver Low

VILSE

 

 

 

0.8

V

Level Input Voltage

 

 

 

 

 

 

Single-Ended Receiver High

VIHSE

 

2.0

 

 

V

Level Input Voltage

 

 

 

 

 

 

Output Levels

 

 

 

 

 

 

Low Level Output Voltage

VFSOL

Pull-up resistor on DP;

 

 

0.3

V

 

 

RL = 1.5kΩ to VDD3.3

 

 

 

 

High Level Output Voltage

VFSOH

Pull-down resistor on DP, DM;

2.8

 

3.6

V

 

 

RL = 15kΩ to GND

 

 

 

 

Termination

 

 

 

 

 

 

Driver Output Impedance for

ZHSDRV

Steady state drive

40.5

45

49.5

Ω

HS and FS

 

 

 

 

 

 

Pull-up Resistor Impedance

ZPU

 

1.425

 

1.575

KΩ

Termination Voltage For Pull-up

VTERM

 

3.0

 

3.6

V

Resistor On Pin DP

 

 

 

 

 

 

HS FUNCTIONALITY

 

 

 

 

 

 

Input levels

 

 

 

 

 

 

HS Differential Input Sensitivity

VDIHS

VI(DP) - VI(DM)

100

 

 

mV

HS Data Signaling Common

VCMHS

 

-50

 

500

mV

Mode Voltage Range

 

 

 

 

 

 

HS Squelch Detection

 

Squelch Threshold

 

 

100

mV

Threshold (Differential)

VHSSQ

Unsquelch Threshold

150

 

 

mV

 

 

 

 

 

 

 

Output Levels

 

 

 

 

 

 

High Speed Low Level

VHSOL

When driven into a precision 45Ω

-10

 

10

mV

Output Voltage (DP/DM

 

load

 

 

 

 

referenced to GND)

 

 

 

 

 

 

High Speed High Level

VHSOH

When driven into a precision 45Ω

360

 

440

mV

Output Voltage (DP/DM

 

load

 

 

 

 

referenced to GND)

 

 

 

 

 

 

High Speed IDLE Level

VOLHS

When driven into a precision 45Ω

-10

 

10

mV

Output Voltage (DP/DM

 

load

 

 

 

 

referenced to GND)

 

 

 

 

 

 

Chirp-J Output Voltage

VCHIRPJ

HS termination resistor disabled,

700

 

1100

mV

(Differential)

 

pull-up resistor connected.

 

 

 

 

Chirp-K Output Voltage

VCHIRPK

HS termination resistor disabled,

-900

 

-500

mV

(Differential)

 

pull-up resistor connected.

 

 

 

 

Leakage Current

 

 

 

 

 

 

OFF-State Leakage Current

ILZ

 

 

 

± 1

uA

Port Capacitance

 

 

 

 

 

 

Transceiver Input Capacitance

CIN

Pin to GND

 

5

10

pF

6.1Dynamic Characteristics: Analog I/O Pins (DP/DM)

ƒCompliant with USB 2.0 Specification. For complete specifications consult the Universal Serial Bus Specification Revision 2.0.

SMSC USB20H04

Page 15

Revision 1.63 (03-30-07)

DATASHEET