LT1791CS datasheet(9/16 Pages) LINER

tên linh kiện	LT1791CS

Giải thích chi tiết về linh kiện	60V Fault Protected RS485/RS422 Transceivers

PDF	16 Pages

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nhà sản xuất	LINER [Linear Technology]

Trang chủ	http://www.linear.com

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LT1785/LT1785A/

LT1791/LT1791A

178491fb

SWITCHING TIME WAVEFORMS

Figure 5. Driver Propagation Delays

1.5V

tPLH

tSKEW

1/2 VO

f = 125kHz, tr ≤ 10ns, tf ≤ 10ns

90%

10%

–VO

90%

1.5V

tPHL

tSKEW

1/2 VO

10%

VDIFF = V(A) – V(B)

1785/91 F05

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

178591 F06

f = 125kHz, tr ≤ 10ns, tf ≤ 10ns

Figure 7. Receiver Propagation Delays

1.5V

tPHL

–VOD2

A – B

1.5V

tPLH

OUTPUT

INPUT

VOD2

VOL

VOH

178591 F07

f = 125kHz, 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

178591 F08

f = 125kHz, tr ≤ 10ns, tf ≤ 10ns

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