AS8221-ASSP datasheet(35/42 Pages) AMSCO

35 / 42 page

AS8221

Datasheet - Appendi x

www.austriamicrosystems.com/flexray/AS8221

Revision 1.7

35 - 42

VBUSActiveHigh

Activity detection differential input voltage high

uBusActiveHigh

Upper Receiver threshold for detecting

activity

VBUSActiveLow

Activity detection differential input voltage low

uBusActiveLow

Lower Receiver threshold for detecting

activity

VData1

Data1 detection differential input voltage

uData1

Receiver threshold for detecting Data_1

VData0

Data0 detection differential input voltage

uData0

Receiver threshold for detecting Data_0

VDataErr

Mismatch between Data0 and Data1

differential input voltage

uData

Mismatch of Receiver thresholds

VRECEIVE_COM

Maximum common mode voltage range when

receiving

uCM

Common mode voltage range (with

respect to GND) that does not disturb the

receive function

tBUS_RxD10

Delay from bus to RxD negative edge

dBDRx10

Receiver delay, negative edge

tBUS_RxD01

Delay from bus to RxD positive edge

dBDRx01

Receiver delay, positive edge

tBIT

Bit time

tRxD_ASYM

Delay time from bus to RxD mismatch

dRxAsym

Receiver delay mismatch

| dBDRx10 – dBDRx01 |

tRxD_FALL

Fall time RxD voltage

dRxSlope

Fall and rise time 20%-80%

tRxD_RISE

Rise time RxD voltage

dRxSlope

Fall and rise time 20%-80%

tBUSIdleDetection

Idle detection time

dIdleDetection

Filter-time for idle detection

tBUSActivityDetection

Activity detection time

dActivityDetection

Filter-time for activity detection

tBUSIdleReaction

Idle reaction time

dBDRxai

Idle reaction time

tBUSActivityReaction

Activity reaction time

dBDRxia

Activity reaction time

Wake-Up Detector

tBWU_D0

Data0 detection time in remote wake-up

pattern

dWU0Detect

Acceptance timeout for detection of a Data_0

phase in wake-up pattern

tBWU_Idle

Idle or Data1 detection time in remote wake-

up pattern

dWUIdleDetect

Acceptance timeout for detection of a Idle

phase in wake-up pattern

tBWU_Detect

Total remote wake-up detection time

dWUTimeout

Acceptance timeout for wake-up pattern

recognition

VBWUTH

Bus wake-up detection threshold

VLWUTH

Local wake-up detection threshold

Table 12. Comparison Table

AS8221 Datasheet

FlexRay

Electrical Physical Layer Specification V2.1 Rev. B

Symbol

Parameter

Name

Description

AS8221-ASSP 数据表(PDF) 35 Page - ams AG

AS8221-ASSP 数据表(HTML) 35 Page - ams AG

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

数据表下载