參數(shù)資料
型號(hào)： MCP2140DM-TMPSNS
廠商： Microchip Technology
文件頁數(shù)： 9/58頁
文件大?。?/td> 0K
描述： BOARD DEMO FOR MCP2140
產(chǎn)品培訓(xùn)模塊： PIC18 J Series MCU Overview
標(biāo)準(zhǔn)包裝： 1
主要目的： 接口，IrDA
嵌入式： 是，MCU，8 位
已用 IC / 零件： MCP2140
主要屬性： 帶 PIC18F MCU 和溫度傳感器的 IrDA 控制器
次要屬性： 設(shè)置為數(shù)據(jù)記錄器
已供物品： 板，軟件
產(chǎn)品目錄頁面： 685 (CN2011-ZH PDF)
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MCP2140-I/P-ND - IC IRDA CONTROLLER DTE/DCE 18DIP
其它名稱： MCP2140DM-TMPSNSR
MCP2140DM-TMPSNSR-ND
2003 Microchip Technology Inc.
Preliminary
DS21790A-page 17
MCP2140
2.13
Optical Interface
The MCP2140 requires an infrared transceiver for the
optical interface. This transceiver can be a single-chip
solution (integrated) or be implemented with discrete
devices.
2.13.1
DISCRETE TRANSCEIVER
SOLUTION
The MCP2140 was designed to use a discrete imple-
mentation that allows the lowest system power
consumption as well as a low cost implementation.
shows
a
typical
discrete
optical
transceiver circuit.
FIGURE 2-11:
CIRCUIT FOR A
DISCRETE OPTICAL
TRANSCEIVER
Care must be taken in the design and layout of the
photo-detect circuit, due to the small signals that are
being detected and their sensitivity to noise.
2.13.2
INTEGRATED TRANSCEIVER
The MCP2140 was designed to use a discrete imple-
mentation that allows the lowest system power con-
sumption and a low cost implementation (see
Section 2.12.1, “Discrete Transceiver Solution”). It is
possible to use an integrated optical transceiver solu-
tion, with the addition of four components. Two com-
ponents are required to condition the input signal to
ensure that the RXIR pulse width is not greater than
1.5 s (see Parameter IR131A). The other two com-
ponents are required to set the RXIR signal trip point
(typically VDD/2). Figure 2-12 shows an example
MCP2140 optical transceiver circuit, using a Vishay/
Temic TFDS4500.
FIGURE 2-12:
CIRCUIT FOR AN
INTEGRATED OPTICAL
TRANSCEIVER
Table 2-6 shows a list of common manufacturers of
integrated optical transceivers.
This figure will be available in Revision B of the
MCP2140 data sheet. Please conact the Microchip
factory via email (tech.support@microchip.com)
for additional information.
+5 V
R11
22
TFDS4500
U6
8
7
6
5
47
R13
1
2
3
4
C18
.1 F
RXPD
(To MCP2140 Pin 2)
TXIR
(To MCP2140 Pin 18)
+5 V
C19 (1)
Q1 (1)
68 pF
MUN211T1
+5 V
RXPDREF
(To MCP2140 Pin 1)
10 k
R14 (2)
10 k
R15 (2)
Note 1: These components are used to control
the width of the TFDS4500 RXD output
signal. Q1 is a digital transistor, which
includes the bias resistors.
2: These components are used to set the
reference voltage that the RXPD signal
needs to cross to “detect” a bit.
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參數(shù)描述
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
MCP2140-I/P 制造商:Microchip Technology Inc 功能描述:IrDA Protocol Handler Communication IC
MCP2140-I/SO 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
MCP2140-I/SO 制造商:Microchip Technology Inc 功能描述:IrDA Protocol Handler Communication IC
MCP2140-I/SS 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
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