LTC1487CS8 datasheet(6/8 Pages) LINER

部件名	LTC1487CS8

功能描述	Ultra-Low Power RS485 with Low EMI, Shutdown and High Input Impedance

PDF	8 Pages

Scroll/Zoom	100%

制造商	LINER [Linear Technology]

网页	http://www.linear.com

标志

6 / 8 page

LTC1487

Figure 5. Driver Propagation Delays

Figure 6. Driver Enable and Disable Times

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)

LTC1487 • F05

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

LTC1487 • F06

f = 1MHz, tr ≤ 10ns, tf ≤ 10ns

SWITCHI G TI E WAVEFOR S

Figure 7. Receiver Propagation Delays

1.5V

tPHL

–VOD2

A – B

1.5V

tPLH

OUTPUT

INPUT

VOD2

VOL

VOH

LTC1487 • F07

f = 1MHz, tr ≤ 10ns, tf ≤ 10ns

Figure 8. Receiver Enable and Disable Times

1.5V

tZL(SHDN), tZL

tZH(SHDN), tZH

1.5V

tLZ

0.5V

tHZ

OUTPUT NORMALLY LOW

OUTPUT NORMALLY HIGH

LTC1487 • F08

f = 1MHz, tr ≤ 10ns, tf ≤ 10ns

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