FIGURE 1A. VOD AND VOC
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉锛� ISL83491IB-T
寤犲晢锛� Intersil
鏂囦欢闋佹暩(sh霉)锛� 16/17闋�
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� IC TXRX RS485/422 3.3V LP 14S
妯欐簴鍖呰锛� 2,500
椤炲瀷锛� 鏀剁櫦(f膩)鍣�
椹呭嫊鍣�/鎺ユ敹鍣ㄦ暩(sh霉)锛� 1/1
瑕�(gu墨)绋嬶細 RS422锛孯S485
闆绘簮闆诲锛� 3 V ~ 3.6 V
瀹夎椤炲瀷锛� 琛ㄩ潰璨艰
灏佽/澶栨锛� 14-SOIC锛�0.154"锛�3.90mm 瀵級
渚涙噳鍟嗚ō鍌欏皝瑁濓細 14-SOICN
鍖呰锛� 甯跺嵎 (TR)
8
Test Circuits and Waveforms
FIGURE 1A. VOD AND VOC
FIGURE 1B. VOD WITH COMMON MODE LOAD
FIGURE 1. DC DRIVER TEST CIRCUITS
FIGURE 2A. DIFFERENTIAL TEST CIRCUIT
FIGURE 2B. MEASUREMENT POINTS
FIGURE 2C. SINGLE ENDED TEST CIRCUIT
FIGURE 2. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES
D
DE
DI
VCC
VOD
VOC
RL/2
Z
Y
D
DE
DI
VCC
VOD
375
375
Z
Y
RL = 60
VCM
-7V to +12V
D
DE
DI
3V
SIGNAL
GENERATOR
CL = 15pF
RDIFF = 60
Z
Y
CL = 15pF
OUT (Y)
3V
0V
tPLH
1.5V
VOH
VOL
50%
tPHL
OUT (Z)
tPHL
VOH
VOL
50%
tPLH
DIFF OUT (Y - Z)
tR
+VOD
-VOD
90%
tF
10%
DI
tDD
50%
tDD
50%
SKEW = |tPLH (Y or Z) - tPHL (Z or Y)|
D
DE
DI
3V
SIGNAL
GENERATOR
Z
Y
CL = 15pF
RL = 27
VOM
OUT
VOH + VOL
2
鈮�1.5V
VOM =
ISL83483, ISL83485, ISL83488, ISL83490, ISL83491
鐩搁棞PDF璩囨枡
PDF鎻忚堪
ISL83490IP IC TXRX RS485/422 3.3V LP 8-D
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鐩搁棞浠g悊鍟�/鎶€琛撳弮鏁�(sh霉)
鍙冩暩(sh霉)鎻忚堪
ISL83491IBZ 鍔熻兘鎻忚堪:RS-422/RS-485 鎺ュ彛 IC 14LD -40+85 3V RS-485 TRANS DUP RoHS:鍚� 鍒堕€犲晢:Maxim Integrated 鏁�(sh霉)鎿�(j霉)閫熺巼:1136 Kbps 宸ヤ綔闆绘簮闆诲:3 V to 5.5 V 闆绘簮闆绘祦:5.9 mA 宸ヤ綔婧害鑼冨湇:- 40 C to + 85 C 瀹夎棰ㄦ牸:SMD/SMT 灏佽 / 绠遍珨:SOIC-28 灏佽:Tube
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ISL83491IP 鍔熻兘鎻忚堪:IC TXRX RS485/422 3.3V LP 14-DIP RoHS:鍚� 椤炲垾:闆嗘垚闆昏矾 (IC) >> 鎺ュ彛 - 椹呭嫊鍣紝鎺ユ敹鍣�锛屾敹鐧�(f膩)鍣� 绯诲垪:- 鐢�(ch菐n)鍝佸煿瑷撴ā濉�:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 妯欐簴鍖呰:25 绯诲垪:- 椤炲瀷:鏀剁櫦(f膩)鍣� 椹呭嫊鍣�/鎺ユ敹鍣ㄦ暩(sh霉):2/2 瑕�(gu墨)绋�:RS232 闆绘簮闆诲:4.5 V ~ 5.5 V 瀹夎椤炲瀷:閫氬瓟 灏佽/澶栨:16-DIP锛�0.300"锛�7.62mm锛� 渚涙噳鍟嗚ō鍌欏皝瑁�:16-PDIP 鍖呰:绠′欢
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