LTC1685 datasheet(7/12 Pages) LINER

部件名	LTC1685

功能描述	52Mbps, Precision Delay, RS485 Fail-Safe Transceiver

PDF	12 Pages

Scroll/Zoom	100%

制造商	LINER [Linear Technology]

网页	http://www.linear.com

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7 / 12 page

LTC1685

SWITCHI G TI E WAVEFOR S

Figure 5. Driver Propagation Delays

1.5V

t PLH

t r

tSKEW

1/2 VO

90%

10%

–VO

90%

1.5V

t PHL

tSKEW

1/2 VO

f = 1MHz, t r ≤ 3ns, tf ≤ 3ns

10%

VDIFF = V(A) – V(B)

1586 F05

Figure 8. Receiver Enable and Disable Times

Figure 7. Receiver Propagation Delays

2.5V

tPHL

f = 1MHz, tr ≤ 3ns, tf ≤ 3ns

–VOD2

A – B

2.5V

t PLH

OUTPUT

INPUT

VOD2

VOL

VOH

1686 F07

1.5V

tZL

2.5V

tZH

1.5V

tLZ

0.5V

tHZ

f = 1MHz, tr ≤ 3ns, tf ≤ 3ns

OUTPUT NORMALLY LOW

OUTPUT NORMALLY HIGH

VOL

VOH

A, B

1686 F06

Figure 6. Driver Enable and Disable Times

1.5V

tZL

2.5V

tZH

1.5V

tLZ

0.5V

tHZ

f = 1MHz, t r ≤ 3ns, tf ≤ 3ns

OUTPUT NORMALLY LOW

OUTPUT NORMALLY HIGH

1685 F08

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