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| 型号： | MXL1543CAI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/18页 |
| 文件大小： | 0K |
| 描述： | IC TXRX MULTIPROTOCOL 28-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 3/3 |
| 规程： | RS232 |
| 电源电压： | 5VDC |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 带卷 (TR) |
MXL1543
+5V Multiprotocol, 3Tx/3Rx, Software-
Selectable Clock/Data Transceivers
14
______________________________________________________________________________________
Figure 17. Typical V.28 Interface
A
′
C
′
A
C
GND
GENERATOR
UNBALANCED
INTERCONNECTING
CABLE
TERMINATION
RECEIVER
LOAD
R6
10k
R8
5k
R3
124
R2
52
R1
52
A
′
B
′
C
′
A
B
GND
R5
30k
R7
10k
R4
30k
MXL1344A
MXL1543
S3
S2
S1
RECEIVER
Figure 18. V.28 Termination and Internal Resistance Networks
load termination networks. The V.35 receiver is sensi-
tive to ±200mV differential signals at receiver inputs A’
and B’. The V.35 receiver rejects common-mode sig-
nals developed across the cable (referenced from C to
C’) of up to ±4V, allowing for error-free reception in
noisy environments.
In Figure 16, the MXL1344A is used to implement the
resistive T network that is needed to properly terminate
the V.35 driver and receiver. Internal to the MXL1344A,
S1 and S2 are closed to connect the T-network resis-
tors to the circuit. The V.28 termination resistor (internal
to the MXL1543) is disabled by opening S3 to avoid
interference with the T-network impedance.
V.28 Interface
The V.28 interface is an unbalanced single-ended inter-
face (Figure 17). The V.28 driver generates a minimum
of ±5V across a 3k
load impedance between A’ and
C’. The V.28 receiver has a single-ended input. To aid
in rejecting system noise, the MXL1543’s V.28 receiver
has a typical hysteresis of 0.05V.
Figure 18 shows the MXL1344A’s termination network
disabled by opening S1 and S2. The MXL1543’s inter-
nal 5k
V.28 termination is enabled by closing S3.
DTE vs. DCE Operation
Figure 19 shows a DCE or DTE controller-selectable
interface. DCE/DTE (pin 14) switches the port’s mode
of operation. See Table 1.
This application requires only one DB-25 connector,
but separate cables for DCE or DTE signal routing. See
Figure 19 for complete signal routing in DCE and DTE
modes.
Complete Multiprotocol X.21 Interface
A complete DTE-to-DCE interface operating in X.21
mode is shown in Figure 20. The MXL1543 is used to
generate the clock and data signals, and the
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MXL1543EVKIT | 功能描述:界面开发工具 RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| MXL1544 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:+5V Multiprotocol, Software-Selectable Control Transceivers |
| MXL1544CAI | 功能描述:接口 - 专用 RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| MXL1544CAI+ | 功能描述:接口 - 专用 5V Multiprotocol Cable Terminator RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| MXL1544CAI+T | 功能描述:接口 - 专用 5V Multiprotocol Cable Terminator RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
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