參數(shù)資料
型號： MCP2122-E/SN
廠商： Microchip Technology
文件頁數(shù)： 38/38頁
文件大?。?/td> 0K
描述： IC ENCODER/DECODER IRDA 8SOIC
標準包裝： 100
類型： 紅外線編碼器/解碼器
應用： 數(shù)據(jù)記錄，數(shù)據(jù)交換
電壓 - 電源，模擬： 1.8 V ~ 5.5 V
電壓 - 電源，數(shù)字： 1.8 V ~ 5.5 V
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應商設備封裝： 8-SOICN
包裝： 管件
產(chǎn)品目錄頁面： 684 (CN2011-ZH PDF)
配用： MCP212XDM-ND - BOARD DEVELOPMENT IRDA
其它名稱： MCP2122-E/SNG
MCP2122-E/SNG-ND
2007 Microchip Technology Inc.
Preliminary
DS21894C-page 9
MCP2122
2.5.3
ENCODING AND SCREEN
CAPTURES
Table 2-4 shows the TXIR pin high-time at different
common baud rates. The internal TXIR pulse-width
high-time limiter is a feature that minimizes the system
current consumption at lower baud rates. The IrDA
standard specification requires that optical receiver cir-
cuitry detect pulses as narrow as 1.41 s (1.63 s is
the typical time at 115200 baud). Therefore, the time
that the TXIR pin is high after this valid detection is
additional current that is driven by the emitter LED. The
MCP2122 will force the TXIR pin low once the pulse-
width limiter has timed out. Figure 2-9 shows the
MCP2122 16XCLK, TX and TXIR waveforms at
115200 baud for a single TX low bit. In this case, the
TXIR is high for three 16XCLK pulses. In Figure 2-10,
the MCP2122 is at 9600 baud for a single TX low bit. In
this case, the TXIR is high for 3.55 s (determined by
pulse-width limiter circuit).
TABLE 2-4:
TXIR HIGH PULSE WIDTH
FIGURE 2-9:
MCP2122 AT 115200 BAUD WAVEFORM
Baud
Rate
TXIR Pulse Width
3xT16XCLK
Circuit
Pulse-width
Limiter (2)
Circuit
Actual Pulse
Width
9600
19.53 s (1)
4.00 s
4.00 s (3)
19200
9.77 s (1)
4.00 s
4.00 s (3)
38400
4.88 s (1)
4.00 s
4.00 s (3)
57600
3.26 s
4.00 s
3.26 s
115200
1.63 s
4.00 s
1.63 s
Note 1: The pulse-width limiter on the TXIR pin
saves system current for this baud rate.
2: This TXIR pulse width time is a design
target and is not tested. Actual times may
be greater than, or less than, this value.
3: This time (determined by the pulse-width
limiter circuit) is device dependent.
1 2 3 4 5 678 9 10 11 12 13 14 15 16
Jitter of the TX input relative to the 16XCLK and TXIR
16XCLK Pulse
AB
TXIR
相關(guān)PDF資料
PDF描述
VE-22H-IY-F2 CONVERTER MOD DC/DC 52V 50W
MCP2122T-E/SN IC ENCODER/DECODER IRDA 8SOIC
JN1AS10UL1 CONN RCPT WATERPRF 10POS T/H PIN
VE-224-IY-F1 CONVERTER MOD DC/DC 48V 50W
S9S08DZ96F2MLH MCU 96K FLASH MASK AUTO 64-LQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP2122T-E/P 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Infrared Encoder/Decoder
MCP2122T-E/SN 功能描述:編碼器、解碼器、復用器和解復用器 IrDA Encoder/Decoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
MCP2122T-E/SNG 功能描述:編碼器、解碼器、復用器和解復用器 Extended Temp Range (-40 to 125C) RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
MCP212XDM 功能描述:其他開發(fā)工具 MCP2120/22 Dev Board RoHS:否 制造商:Parallax 產(chǎn)品:ELEV-8 Hex Upgrade Kits 類型:Robotics 工具用于評估:ELEV-8 Quadcopter 工作電源電壓:
MCP212XEV-DB 功能描述:子卡和OEM板 MCP212X Dev Dghtr Brd RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*