- 您现在的位置：买卖IC网 > PDF目录11599 > MCP2140A-I/SS (Microchip Technology)IC IRDA CONTROLLR DTE/DCE 20SSOP PDF资料下载
参数资料
| 型号： | MCP2140A-I/SS |
| 厂商： | Microchip Technology |
| 文件页数： | 15/66页 |
| 文件大小： | 0K |
| 描述： | IC IRDA CONTROLLR DTE/DCE 20SSOP |
| 标准包装： | 67 |
| 控制器类型： | IRDA 标准协议栈控制器 |
| 接口： | UART |
| 电源电压： | 3 V ~ 5.5 V |
| 电流 - 电源： | 2.2mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 20-SSOP |
| 包装： | 管件 |
| 产品目录页面： | 685 (CN2011-ZH PDF) |
| 配用： | MCP2140DM-TMPSNS-ND - BOARD DEMO FOR MCP2140 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页当前第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页
MCP2140A
DS22050B-page 22
2007-2011 Microchip Technology Inc.
2.13
Optical Interface
The MCP2140A requires an infrared transceiver for the
optical interface. This transceiver can be a single-chip
solution (integrated) or be implemented with discrete
devices.
The MCP2140A was designed to interface to a inte-
grated optical transceiver, although it can interface to a
discrete solution as long as the MCP2140A
specifications are meet.
The MCP2140 required a wave shaping circuit to inter-
face to typical integrated optical transceivers. An exam-
ple circuit is shown in the user guides of the MCP2140
demo and evaluation boards. This circuit is shown in
Figure 2-16. This circuit inverts the optical transceivers
RXD signal.
The MCP2140A requires that the RXD signal is not
inverted. Figure 2-17 shows how the Microchip exam-
ple wave shaping circuit can be modified with simple
component replacement to support the MCP2140A.
Figure 2-19 shows the RXD signal characteristics
before and after the modified wave shaping circuit
Table 2-6 shows the schematic symbols for the exam-
ple MCP2140 wave shaping circuit, and the component
changes required to make the PCB layout compatible
with the MCP2140A. The layout is not required to be
changed since the BAT54 is a Schottky diode in a
SOT-23-3 package with the desired pin connections,
the capacitor footprint can easily be replaced by a
resistor (0
), and the R16 resistor can be removed
since it is not involved with the circuit.
TABLE 2-6:
EXAMPLE MCP2140 WAVE
SHAPING CIRCUIT TO
MCP2140A COMPONENT
CHANGES
Figure 2-18 shows a simple “Blue Wire” modification
that can be done.
Table 2-8 shows a list of common manufacturers of
integrated optical transceivers.
FIGURE 2-16:
MCP2140 WAVE SHAPING
CIRCUIT FOR
INTEGRATED OPTICAL
TRANSCEIVER
FIGURE 2-17:
MCP2140A
MODIFICATIONS OF
MCP2140 WAVE SHAPING
CIRCUIT
Note:
Please refer to Appendix F: “Device
Errata” for additional information on the
optical transceiver.
Component
Symbol
MCP2140 Device
(value)
MCP2140A
Device (value)
C19
Capacitor (47pF)
Resistor (0
) (1)
R11
—
R13
—
R16
Resistor
(100
)
—
R20
Resistor
(4.7 k
)
Resistor
(4.7 K
) (1)
Q1
(SOT-23-3)
PNP Transistor
(MMUN2111LT1)
Schottky Diode
(BAT54) (1)
Note 1: This device is changed from MCP2140
wave shaping circuit implementation.
R13
RXPD
(MCP2140
C19
Q1
47 pF
MMUN2111LT1
+5V
RXPDREF
(MCP2140 Pin 1)
10 k
R14
10 k
R15
R20
4.7 k
+5V
100
R16
R11
Pin 18)
RXD
optional
1
3
2
R13
RXPD
(MCP2140A
C19
Q1
0
BAT54
+5V
RXPDREF
(MCP2140A Pin 1)
10 k
R14
10 k
R15
R20
4.7 k
+5V
R16 (Open)
R11
Pin 18)
RXD
optional
1
3
Schottky
Diode
相关PDF资料 |
PDF描述 |
|---|---|
| MCP2515-I/ST | IC CAN CONTROLLER W/SPI 20TSSOP |
| PIC16LF1902-E/SP | MCU 3.5KB FLASH 128B RAM 28SPDIP |
| PIC16LF1825T-I/ML | MCU PIC 14KB FLASH 16-QFN |
| PIC16F720-E/P | MCU PIC 3.5KB FLASH 128B 20PDIP |
| MCP2515T-I/ML | IC CAN CTLR W/SPI 2.0B 20-QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP2140AT-I/P | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:IrDA㈢ Standard Protocol Stack Controller With Fixed 9600 Baud Communication Rate |
| MCP2140AT-I/SO | 功能描述:网络控制器与处理器 IC Enhanced MCP2140 Win Mobile 5.0 compatble RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| MCP2140AT-I/SS | 功能描述:网络控制器与处理器 IC Enhanced MCP2140 Win Mobile 5.0 compatble RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| MCP2140DM-TMPSNS | 功能描述:温度传感器开发工具 MCP2140 IrDA Wire- less Temp Demo RoHS:否 制造商:Texas Instruments 产品类型:Temperature Sensors and Control ICs 工具用于评估:MSP430G2553 接口类型:USB 工作电源电压: 工作电源电流: |
| MCP2140-I/P | 功能描述:网络控制器与处理器 IC 9600bd fixd spd IrDA RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
发布紧急采购，3分钟左右您将得到回复。