USB334X datasheet(18/92 Pages) MICROCHIP

18 / 92 page

USB334x

DS00002646A-page 18

 2009-2018 Microchip Technology Inc.

4.5

DC Characteristics: Analog I/O Pins

TABLE 4-6:

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

Note 4-6

0.8

Single-Ended Receiver High

Level Input Voltage

VIHSE

Note 4-6

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

0.3

High Level Output Voltage

VFSOH

Pull-down resistor on DP,

DM; Note 4-6

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-up Resistor Impedance

RPU

Bus Idle, Note 4-5

0.900

1.24

1.575

kΩ

Pull-up Resistor Impedance

RPU

Device Receiving, Note 4-

1.425

2.26

3.09

kΩ

Pull-dn Resistor Impedance

RPD

Note 4-5

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

VariSense[1:0] = 00b

Note 4-7

100

150

HS Disconnect Threshold

VHSDSC

525

625

Output Levels

High Speed Low Level

Output Voltage (DP/DM

referenced to GND)

VHSOL

45Ω load

-10

USB334X 数据表(PDF) 18 Page - Microchip Technology

USB334X 数据表(HTML) 18 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92

数据表下载