參數(shù)資料
型號： MAX3157
廠商： Maxim Integrated Products, Inc.
英文描述： 4x4 1.5 Gbps LVDS Crosspoint Switch 38-TSSOP -40 to 85
中文描述： 高共模抑制比RS-485收發(fā)器，帶有±50V隔離
文件頁數(shù)： 4/13頁
文件大?。?/td> 307K
代理商： MAX3157
M
High CMRR RS-485 Transceiver
with ±50V Isolation
4
_______________________________________________________________________________________
SWITCHING CHARACTERISTICS (continued)
(V
CC
= +5V ±5%, YR = ZR = AR = BR = ISOCOM, C1 = C2 = 0.047μF, C3 = C4 = 1μF. Typical values are at V
CC
= +5V and T
A
= +25
°
C.)
PARAMETER
SYMBOL
t
DZH
t
DZL
t
DLZ
t
DHZ
t
RPLH
,
t
RPHL
CONDITIONS
MIN
TYP
MAX
3500
3500
300
300
UNITS
ns
ns
ns
ns
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
Figures 4 and 6, C
L
= 100pF, S2 closed
Figures 4 and 6, C
L
= 100pF, S1 closed
Figures 4 and 6, C
L
= 15pF, S1 closed
Figures 4 and 6, C
L
= 15pF, S2 closed
Receiver Input to Output
Figures 7 and 9;
|
V
ID
|
≥
2.0V
440
600
ns
Differential Receiver Skew
|
t
RPLH
- t
RPHL
|
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable Time from Low
Receiver Disable Time from High
Time to Shutdown
t
RSKEW
Figures 7 and 9;
|
V
ID
|
≥
2.0V
20
ns
t
RZL
t
RZH
t
RLZ
t
RHZ
t
SHDN
t
DZH
(SHDN)
Figures 2 and 8, C
L
= 100pF, S1 closed
Figures 2 and 8, C
L
= 100pF, S2 closed
Figures 2 and 8, C
L
= 100pF, S1 closed
Figures 2 and 8, C
L
= 100pF, S2 closed
(Note 4)
20
20
200
200
200
50
50
500
500
700
ns
ns
ns
ns
ns
50
Driver Enable from Shutdown to
Output High
Figures 4 and 6, C
L
= 15pF, S2
closed
0.2
1
ms
Driver Enable from Shutdown to
Output Low
t
DZL
(SHDN)
Figures 4 and 6, C
L
= 15pF, S1 closed
0.2
1
ms
Receiver Enable from Shutdown
to Output High
t
RZH
(SHDN)
Figures 2 and 8, C
L
= 100pF, S2 closed
0.2
1
m s
Receiver Enable from Shutdown
to Output Low
t
RZL
(SHDN)
Figures 2 and 8, C
L
= 100pF, S1 closed
0.2
1
ms
Charge-Pump Oscillating
Frequency
f
OSC
1.3
MHz
Note 1:
All currents into the device are positive; all currents out of the device are negative. All voltages are referred to device
ground unless otherwise noted.
Note 2:
V
OD
and
V
OC
are the changes in V
OD
and V
OC
, respectively, when the DI input changes state.
Note 3:
Current level applies to peak current just prior to foldback-current limiting.
Note 4:
The device is put into shutdown by bringing
RE
high and DE low. If the enable inputs are in this state for less than 50ns,
the device is guaranteed not to enter shutdown. If the enable inputs are in this state for at least 700ns, the device is guaran-
teed to have entered shutdown.
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相關代理商/技術參數(shù)
參數(shù)描述
MAX3157CAI 功能描述:RS-485接口IC RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
MAX3157CAI+ 功能描述:RS-422/RS-485 接口 IC High CMRR RS-485 Tcvr w/+-50V Iso RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube
MAX3157CAI+T 功能描述:RS-422/RS-485 接口 IC High CMRR RS-485 Tcvr w/+-50V Iso RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube
MAX3157CAI-T 功能描述:RS-485接口IC RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
MAX3157CPI 功能描述:RS-485接口IC RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
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