參數(shù)資料
型號(hào): ISL81487EIB
廠商: INTERSIL CORP
元件分類(lèi): 通用總線功能
英文描述: 【15kV ESD Protected, 1/8 Unit Load, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers
中文描述: LINE TRANSCEIVER, PDSO8
封裝: PLASTIC, MS-012AA, SOIC-8
文件頁(yè)數(shù): 12/14頁(yè)
文件大?。?/td> 527K
代理商: ISL81487EIB
7
FN6051.6
Test Circuits and Waveforms
FIGURE 1. DRIVER VOD AND VOC
FIGURE 2A. TEST CIRCUIT
FIGURE 2B. MEASUREMENT POINTS
FIGURE 2. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES
FIGURE 3A. TEST CIRCUIT
FIGURE 3B. MEASUREMENT POINTS
FIGURE 3. DRIVER ENABLE AND DISABLE TIMES
D
DE
DI
VCC
VOD
VOC
R
Z
Y
D
DE
DI
VCC
SIGNAL
GENERATOR
CL = 100pF
RDIFF
Z
Y
CL = 100pF
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
SKEW = |tPLH (Y or Z) - tPHL (Z or Y)|
D
DE
DI
CL
500
Z
Y
VCC
GND
SW
(SHDN) for ISL8487E and ISL81487L only.
PARAMETER OUTPUT
RE
DI
SW
CL (pF)
tHZ
Y/Z
X
1/0
GND
15
tLZ
Y/Z
X
0/1
VCC
15
tZH
Y/Z
0 (Note 5)
1/0
GND
100
tZL
Y/Z
0 (Note 5)
0/1
VCC
100
tZH(SHDN)
Y/Z
1 (Note 7)
1/0
GND
100
tZL(SHDN)
Y/Z
1 (Note 7)
0/1
VCC
100
SIGNAL
GENERATOR
OUT (Y, Z)
3V
0V
1.5V
VOH
0V
2.3V
VOH - 0.5V
tHZ
OUT (Y, Z)
VCC
VOL
2.3V
VOL + 0.5V
tLZ
DE
OUTPUT HIGH
OUTPUT LOW
tZL, tZL(SHDN)
tZH, tZH(SHDN)
NOTE 7
ISL8487E, ISL81487L, ISL81487E
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