參數(shù)資料
型號(hào)： MCP2140A-I/SS
廠商： Microchip Technology
文件頁數(shù)： 15/66頁
文件大?。?/td> 0K
描述： IC IRDA CONTROLLR DTE/DCE 20SSOP
標(biāo)準(zhǔn)包裝： 67
控制器類型： IRDA 標(biāo)準(zhǔn)協(xié)議棧控制器
接口： UART
電源電壓： 3 V ~ 5.5 V
電流 - 電源： 2.2mA
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 20-SSOP（0.209"，5.30mm 寬）
供應(yīng)商設(shè)備封裝： 20-SSOP
包裝： 管件
產(chǎn)品目錄頁面： 685 (CN2011-ZH PDF)
配用： MCP2140DM-TMPSNS-ND - BOARD DEMO FOR MCP2140
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
相關(guān)PDF資料
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP2140AT-I/P 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:IrDA㈢ Standard Protocol Stack Controller With Fixed 9600 Baud Communication Rate
MCP2140AT-I/SO 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Enhanced MCP2140 Win Mobile 5.0 compatble RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
MCP2140AT-I/SS 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Enhanced MCP2140 Win Mobile 5.0 compatble RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
MCP2140DM-TMPSNS 功能描述:溫度傳感器開發(fā)工具 MCP2140 IrDA Wire- less Temp Demo RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:Temperature Sensors and Control ICs 工具用于評(píng)估:MSP430G2553 接口類型:USB 工作電源電壓: 工作電源電流:
MCP2140-I/P 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 9600bd fixd spd IrDA RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*