參數(shù)資料
型號: MAX3480EACPI+
廠商: Maxim Integrated Products
文件頁數(shù): 3/16頁
文件大?。?/td> 0K
描述: IC RS485/RS422 DATA INTRFC 28DIP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 14
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: 通孔
封裝/外殼: 28-DIP(0.600",15.24mm)
供應(yīng)商設(shè)備封裝: 28-PDIP
包裝: 管件
產(chǎn)品目錄頁面: 1407 (CN2011-ZH PDF)
MAX3480A/MAX3480B
Complete, Isolated, 3.3V
RS-485/RS-422 Data Interface
______________________________________________________________________________________
11
_________________________________________________________________Test Circuits
Figure 3. Driver DC Test Load
Figure 4. Driver/Receiver Timing Test Circuit
Figure 5. Driver Timing Test Load
R
A
B
VOD
VOC
DI
DE
3.3V
A
B
CL1
CL2
A
B
RO
R3
3.3V
RDIFF
VID
ISOLATION BARRIER
R
D
OUTPUT
UNDER TEST
500
S1
S2
ISO VCC1,
ISO VCC2
CL
_______________________________________________________Switching Waveforms
Figure 6. Driver Propagation Delays and Transition Times
Figure 7. Driver Enable and Disable Times
DI
VCC_ - 0.4V
2
VCC_ - 0.4V
2
0V
B
A
VO
0V
-VO
VO
tPLH
1/2 VO
10%
tR
90%
tPHL
1/2 VO
10%
tF
VDIFF = VA - VB
VDIFF
tSKEW =
| tPLH - tPHL |
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
0V
A, B
VOL
A, B
0V
VOL + 0.5V
VOH - 0.5V
2.3V
tZL
tLZ
tZH
tHZ
DE
VCC_ - 0.4V
2
VCC_ - 0.4V
2
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