LTM2883 查看數據表（PDF） - Linear Technology

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产品描述 (功能)

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LTM2883

SPI/Digital or I2C µModule Isolator with Adjustable ±12.5V and 5V Regulated Power

Linear Technology 

Test Circuits

INPUT

OUTPUT

CL

LTM2883

VL

INPUT

½VL

OUTPUT

0V

CL

tPLH

tPHL

VOH

OUTPUT

VOL

90%

10%

½VCC2

10%

90%

tR

tF

INPUT

VCC2

INPUT

½VCC2

0V

tPLH

tPHL

VOH

OUTPUT

VOL

90%

10%

½VL

10%

90%

tR

tF

2883 F01

Figure 1. Logic Timing Measurements

VL OR 0V

RL

SDO

CL

SDOE

VL

RL

SDA

VL

RL

SDA

CL

0V

SDO2 OR

VCC2

VL

SDOE

½VL

0V

VOH

SDO

0V

VL

SDO

tPZH

tPHZ

½VL

tPZL

tPLZ

½VL

VOL

VOH – 0.5V

VOL + 0.5V

2883 F02

Figure 2. Logic Enable/Disable Time

SDA2

CL

VL

SDA

0V

VOH

SDA2

VOL

½VL

½VCC2

tPHL

30%

70%

tF

tPLH

70%

30%

tR

SDA2

VCC2

SDA2

0V

VOH

SDA

VOL

½VCC2

tPHL

30%

½VL

70%

tF

tPLH

70%

30%

tR

Figure 3. I2C Timing Measurements

2883 F03

2883f

15

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