ADN4667(Rev0) Ver la hoja de datos (PDF) - Analog Devices

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componentes Descripción

Fabricante

ADN4667
(Rev.:Rev0)

3 V LVDS Quad CMOS Differential Line Driver

Analog Devices 

ADN4667

TEST CIRCUITS

VCC

DIN

DOUT+

RL/2

RL/2

V VOS V VOD

DRIVER IS ENABLED

DOUT–

Figure 2. Test Circuit for Driver VOD and VOS

DIN

DOUT–

DOUT+

tPLHD

VOD

VCC

CL

SIGNAL

GENERATOR

DIN

50Ω

CL

DOUT+

DOUT–

DRIVER IS

ENABLED

NOTES

1. CL INCLUDES LOAD AND TEST JIG CAPACITANCE.

Figure 3. Test Circuit for Driver Propagation Delay and Transition Time

tPHLD

3V

1.5V

0V

VOH

0V (DIFFERENTIAL)

VOL

VDIFF

VDIFF = DOUT+ – DOUT–

80%

0V

20%

tTLH

tTHL

Figure 4. Driver Propagation Delay and Transition Time Waveforms

SIGNAL

GENERATOR

VCC

DIN

EN

CL

50Ω

50Ω

CL

50Ω

EN

Figure 5. Test Circuit for Driver Three-State Delay

DOUT+

1.2V

DOUT–

EN WITH EN = GND

OR OPEN-CIRCUIT

EN WITH EN = VCC

DOUT+ WITH DIN = VCC

OR DOUT– WITH DIN = GND

DOUT+ WITH DIN = GND

OR DOUT– WITH DIN = VCC

tPHZ

tPLZ

tPZH

tPZL

3V

1.5V

0V

3V

1.5V

0V

VOH

50%

1.2V

1.2V

50%

VOL

Figure 6. Driver Three-State Delay Waveforms

Rev. 0 | Page 5 of 12

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