參數資料
型號: MAX3292EPD+
廠商: Maxim Integrated Products
文件頁數: 15/16頁
文件大?。?/td> 0K
描述: IC TXRX RS485/422 10MBPS 14-DIP
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 25
類型: 收發(fā)器
驅動器/接收器數: 1/1
規(guī)程: RS422,RS485
電源電壓: 4.75 V ~ 5.25 V
安裝類型: 通孔
封裝/外殼: 14-DIP(0.300",7.62mm)
供應商設備封裝: 14-PDIP
包裝: 管件
產品目錄頁面: 1406 (CN2011-ZH PDF)
MAX3291/MAX3292
RS-485/RS-422 Transceivers with Preemphasis
for High-Speed, Long-Distance Communication
8
_______________________________________________________________________________________
DI
DE
D
5V
Y
Z
CL1
CL2
RDIFF
VODP
RE
RO
DE = LOW
t > tSHDN
t < tSHDN
tRZH(SHDN)
Figure 3. Driver Timing Test Circuit
Figure 4. Shutdown Timing Diagram
DI
5V
0
ZN
YP
ZP
YN
ZN
ZP
YP
YN
0 DIFFERENTIAL
1.5V
tDPLH
20%
80%
tDPHL
1.5V
20%
tHL
tLH
VDIFF = VY - VZ
VDIFF
tSKEW = | tPLH - tPHL |
| YN - ZN | = VOD
| YP - ZP | = VODP
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
5V
0
Y, Z
0
1.5V
VPH
VPL
VOL* + 0.5V
VOH* - 0.5V
2.3V
*NOTE: VOH AND VOL ARE THE OUTPUT LEVELS IN FIGURE 2 WITH
S2 AND S1 CLOSED, RESPECTIVELY.
2.3V
tDZL(SHDN), tDZL
tDLZ
tDZH(SHDN), tDZH
tDHZ
DE
Figure 5. Driver Propagation Delays
Figure 6. Driver Enable and Disable Times
RO
VOH
VOL
A +1V
B -1V
0 DIFFERENTIAL
1.5V
tRPHL
tRPLH
1.5V
tRSKEW = | tRPLH - tRPHL |
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
3V
0
VCC
RO
0
1.5V
VOL + 0.5V
VOH - 0.5V
1.5V
tRZL(SHDN), tRZL
tRLZ
tRZH(SHDN), tRZH
tRHZ
RE
Figure 7. Receiver Propagation Delays
Figure 8. Receiver Enable and Disable Times
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