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參數(shù)資料
| 型號： | MXL1543CAI+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 2/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX MULTIPROTOCOL 28-SSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,000 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 3/3 |
| 規(guī)程： | RS232 |
| 電源電壓： | 5VDC |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SSOP |
| 包裝： | 帶卷 (TR) |
MXL1543
is disabled and receiver R1 is activated. M0, M1, M2,
and DCE/DTE are internally pulled up to VCC to ensure
a logic HIGH if left unconnected.
No-Cable Mode
The MXL1543 will enter no-cable mode when the
mode-select pins are left unconnected or connected
high (M0 = M1 = M2 = 1). In this mode, the multiproto-
col drivers and receivers are disabled and the supply
current drops to 0.5A. The receivers’ outputs enter a
high-impedance state in no-cable mode, which allow
these output lines to be shared with other receivers’
outputs (the receivers’ outputs have internal pullup
resistors to pull the outputs HIGH if not driven). Also, in
no-cable mode, the transmitter outputs enter a high-
impedance state so that these output lines can be
shared with other devices.
Dual Charge-Pump Voltage Converter
The MXL1543’s internal power supply consists of a reg-
ulated dual charge pump that provides positive and
negative output voltages from a +5V supply. The
charge pump operates in discontinuous mode. If the
output voltage is less than the regulated voltage, the
charge pump is enabled. If the output voltage exceeds
the regulated voltage, the charge pump is disabled.
Each charge pump requires a flying capacitor (C1, C2)
and a reservoir capacitor (C3, C5) to generate the VDD
and VEE supplies. Figure 10 shows charge-pump con-
nections.
Fail-Safe Receivers
The MXL1543 guarantees a logic-high receiver output
when the receiver inputs are shorted or open, or when
they are connected to a terminated transmission line
with all the drivers disabled. This is done by setting the
receivers’ threshold between -25mV and -200mV in the
+5V Multiprotocol, 3Tx/3Rx, Software-
Selectable Clock/Data Transceivers
10
______________________________________________________________________________________
MXL1543
MODE NAME
M2
M1
M0
DCE/
DTE
T1
T2
T3
R1
R2
R3
Not Used (Default V.11)
0
V.11
Z
V.11
RS-530A
0
1
0
V.11
Z
V.11
RS-530
0
1
0
V.11
Z
V.11
X.21
0
1
0
V.11
Z
V.11
V.35
1
0
V.35
Z
V.35
RS-449/V.361
0
1
0
V.11
Z
V.11
V.28/RS-232
1
0
V.28
Z
V.28
No Cable
1
0
Z
Not Used (Default V.11)
0
1
V.11
Z
V.11
RS-530A
0
1
V.11
Z
V.11
RS-530
0
1
0
1
V.11
Z
V.11
X.21
0
1
V.11
Z
V.11
V.35
1
0
1
V.35
Z
V.35
RS-449/V.361
0
1
V.11
Z
V.11
V.28/RS-232
1
0
1
V.28
Z
V.28
No Cable
1
Z
Table 1. Mode Selection
C2-
VEE
C2+
MXL1543
GND
C1-
5V
VCC
VDD
C1+
C1
1
F
C5
4.7
F
C2
1
F
C3
4.7
F
C4
1
F
Figure 10. Charge Pump
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MXL1543EVKIT | 功能描述:界面開發(fā)工具 RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| MXL1544 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:+5V Multiprotocol, Software-Selectable Control Transceivers |
| MXL1544CAI | 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59 |
| MXL1544CAI+ | 功能描述:接口 - 專用 5V Multiprotocol Cable Terminator RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59 |
| MXL1544CAI+T | 功能描述:接口 - 專用 5V Multiprotocol Cable Terminator RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59 |
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