LTC486 datasheet(5/8 Pages) LINER

부품명	LTC486

상세설명	Ultralow Power RS485 Transceiver with Shutdown

PDF	8 Pages

Scroll/Zoom	100%

제조업체	LINER [Linear Technology]

홈페이지	http://www.linear.com

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5 / 8 page

LTC1481

1481fa

Figure 6. Driver Enable and Disable Times

1.5V

2.3V

tZH(SHDN), tZH

tZL(SHDN), tZL

1.5V

tLZ

0.5V

tHZ

OUTPUT NORMALLY LOW

OUTPUT NORMALLY HIGH

VOL

VOH

A, B

LTC1481 • F06

f = 1MHz, tr ≤ 10ns, tf ≤ 10ns

Figure 5. Driver Propagation Delays

1.5V

tPLH

tSKEW

1/2 VO

f = 1MHz, tr ≤ 10ns, tf ≤ 10ns

90%

10%

–VO

90%

1.5V

tPHL

tSKEW

1/2 VO

10%

VDIFF = V(A) – V(B)

LTC1481 • F05

OUTPUT

UNDER TEST

VCC

500

Ω

LTC1481 • F04

RDIFF

CL1

CL2

15pF

LTC1481 • F03

VOD

VOC

LTC1481 • F01

RECEIVER

OUTPUT

CRL

TEST POINT

VCC

LTC1481 • F02

Figure 2. Receiver Timing Test Load

Figure 4. Driver Timing Test Load

Figure 1. Driver DC Test Load

Figure 3. Driver/Receiver Timing Test Circuit

TEST CIRCUITS

SWITCHI G TI E WAVEFOR S

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