FIGURE 1A. VOD AND VOC
參數(shù)資料
型號: ISL83490IB-T
廠商: Intersil
文件頁數(shù): 16/17頁
文件大小: 0K
描述: IC TXRX RS485/422 3.3V LP 8-S
標(biāo)準(zhǔn)包裝: 2,500
類型: 收發(fā)器
驅(qū)動器/接收器數(shù): 1/1
規(guī)程: RS422,RS485
電源電壓: 3 V ~ 3.6 V
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SOICN
包裝: 帶卷 (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
≈1.5V
VOM =
ISL83483, ISL83485, ISL83488, ISL83490, ISL83491
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