LC823450 datasheet(66/112 Pages) ONSEMI

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LC823450

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Table 29. USB2.0 PHY CHARACTERISTICS (continued)

(TA = 25°C, VDD1 = 1.2 V, AVDDUSBPHY1 = DVDDUSBPHY1 = 1.2 V, AVDDUSBPHY2 = 3.3 V)

Item

Unit

Max

Min

Condition

Symbol

DRIVER CHARACTERISTICS IN FULL−SPEED:

Fall Time(10% − 90%)

TFF

Difference Rise and Fall Time Matching

TFRFM

111.11

CLOCK TIMING IN FULL−SPEED(INTERNAL SIGNAL FSSEL=’0’):

Full−speed Data Rate for hubs and Devices which

are High−speed Capable

TFDRATHS

11.994

12.006

Mb/s

FULL−SPEED DATA TIMINGS(INTERNAL SIGNAL FSSEL=’0’):

Source Jitter Total

(Including Frequency Tolerance):

To Next Transition

For Paired Transitions

TDJ1

TDJ2

−3.5

−4

3.5

Source Jitter for Differential Transition to SE0

Transition

TFDEOP

−2

Receiver Jitter:

To Next Transitions

For Paired Transitions

TJR1

TJR2

−18.5

−9

18.5

Source SE0 Interval of EOP

TFEOPT

160

175

Receiver SE0 Interval of EOP

TFEOPR

Width of SE0 Interval During Differential Transition

TFST

INPUT LEVELS FOR HIGH−SPEED:

High−speed Squelch Detection Threshold

(Differential Signal)

VHSSQ

100

200

High−speed Disconnect Detection Threshold

(Differential Signal)

VHSDSC

525

625

High−speed Data Signaling Common

Mode Voltage Range

VHSCM

−50

500

High−speed Differential Input Signaling Level

(This Spec is Based on ‘Template 6’)

Figure 11

OUTPUT LEVELS FOR HIGH−SPEED:

High−speed Idle State

VHSOI

−10.0

High−speed Data Signaling High

VHSOH

360

440

High−speed Data Signaling Low

VHSOL

−10.0

Chirp J Level (Different Signal)

VCHIRPJ

700

1100

Chirp K Level (Different Signal)

VCHIRPK

−900

−500

TERMINATION IN HIGH−SPEED:

Termination Voltage in High−speed

VHSTERM

−10.0

DRIVER CHARACTERISTICS IN HIGH−SPEED:

Rise Time(10% − 90%)

VHSR

500

Fall Time(10% − 90%)

VHSF

500

Driver Waveform Requirement

Complying with USB2.0 Specification (section 7.1.2)

Driver Output Resistance

(which also serves as high−speed termination)

ZHSDRV

40.5

49.5

CLOCK TIMING IN HIGH−SPEED:

High−Speed Data Rate

THSDRAT

479.76

480.24

Mb/s

HIGH−SPEED DATA TIMINGS:

Data Source Jitter

Complying with USB2.0 Specification (section 7.1.2)

Receiver Jitter Tolerance

INPUT LEVELS FOR LOW−SPEED:SAME AS FULL−SPEED

OUTPUT LEVELS FOR LOW−SPEED: SAME AS FULL−SPEED

LC823450 Datasheet(PDF) 66 Page - ON Semiconductor

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