ISO1050 datasheet(9/24 Pages) TI

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VOL

VOH or

TXD

RXD

VCC 1

1 k W

60 W

VCC2

GND 1

V TEST

GND 2

CL = 15 pF

(includesprobeand

jigcapacitance)

C = 0.1 F 1%

CANH

CANL

GND1

C = 0.1 F

± 1%

S 1

2.0 V

0.8 V

VOL

VOH or

GND2

ISO1050

30 W

CANH

CANL

47nF

10 nF

Spectrum Analyzer

TXD

500kbps

30 W

6.2kW

ISO1050

www.ti.com

SLLS983C – JUNE 2009 – REVISED JULY 2010

Figure 13. Common-Mode Transient Immunity Test Circuit

Figure 14. Electromagnetic Emissions Measurement Setup

DEVICE INFORMATION

FUNCTION TABLE(1)

DRIVER

RECEIVER

INPUTS

OUTPUTS

DIFFERENTIAL INPUTS

OUTPUT

BUS STATE

VID = CANH–CANL

RXD

TXD

CANH

CANL

L(2)

DOMINANT

VID ≥ 0.9 V

DOMINANT

RECESSIVE

0.5 V < VID < 0.9 V

Open

RECESSIVE

VID ≤ 0.5 V

RECESSIVE

Open

RECESSIVE

(1)

H = high level; L = low level; X = irrelevant; ? = indeterminate; Z = high impedance

(2)

Logic low pulses to prevent dominant time-out.

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