- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄16511 > XR19L402IL48-0B-EB (Exar Corporation)EVAL BOARD FOR XR19L402-B 48QFN PDF資料下載
參數(shù)資料
| 型號： | XR19L402IL48-0B-EB |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 13/49頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVAL BOARD FOR XR19L402-B 48QFN |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | * |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁當(dāng)前第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁
XR19L402
20
TWO CHANNEL INTEGRATED UART AND RS-485 TRANSCEIVER
REV. 1.0.3
2.14
Infrared Mode (UART Channel B Only)
The L402 includes an infrared encoder and decoder compatible to the IrDA (Infrared Data Association) version
1.0. The IrDA 1.0 standard that stipulates the infrared encoder sends out a 3/16 of a bit wide HIGH-pulse for
each “0” bit in the transmit data stream. This signal encoding reduces the on-time of the infrared LED, hence
reduces the power consumption. See Figure 11 below.
The infrared encoder and decoder are enabled by setting MCR register bit-6 to a ‘1’. When the infrared feature
is enabled, the transmit data output, TXB, idles at logic zero level. Likewise, the RX input assumes an idle level
of logic zero from a reset and power up, see Figure 11.
Typically, the wireless infrared decoder receives the input pulse from the infrared sensing diode on the RXB
pin. Each time it senses a light pulse, it returns a HIGH to the data bit stream. However, this is not true with
some infrared modules on the market which indicate a LOW by a light pulse. So the L402 has a provision to
invert the input polarity to accommodate this. In this case user can enable FCTR bit-2 to invert the input signal.
The Infrared Mode can only be used with channel B of the L402 using the TXB output and the RXB input pins.
FIGURE 11. INFRARED TRANSMIT DATA ENCODING AND RECEIVE DATA DECODING
Character
Data Bits
Start
Stop
00
0
11
1
11
Bit Time
1/16 Clock Delay
IRdecoder-1
RX Data
Receive
IR Pulse
(RX pin)
C haracter
D a ta B its
Sta
rt
Stop
00
0
11
1
T X D a ta
T ransm it
IR P u lse
(T X Pin )
Bit Tim e
1/2 B it T im e
3/16 B it T im e
IrE ncoder-1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W681511DK | KIT DEVELOPMENT FOR W681511 |
| M3DDK-1420K | IDC CABLE - MKR14K/MC14F/MKR14K |
| 5503162-5 | CABLE ASSY,2.5BAY,SM DUAL,5 M1 |
| ACC06DRXS | CONN EDGECARD 12POS .100 DIP SLD |
| RBC17DREI-S13 | CONN EDGECARD 34POS .100 EXTEND |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR19L402IL48-F | 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| XR1AEX2NV1XX | 制造商:Eaton Corporation 功能描述:SWITCH, ROCKER, SPST, 18A, 125VAC, BLACK, Contact Configuration:SPST, Switch Ope 制造商:Eaton Corporation 功能描述:SWITCH, ROCKER, SPST, 18A, 125VAC, BLACK, Contact Configuration:SPST, Switch Operation:Off-On, Contact Current Max:18A, Contact Voltage AC Nom:125V, Switch Mounting:Panel, Actuator / Cap Color:Red, Illumination Color:Red , RoHS Compliant: Yes |
| XR1AEX3NV1XX | 制造商:Eaton Corporation 功能描述:SWITCH, ROCKER, SPST, 18A, 125VAC, BLACK, Contact Configuration:SPST, Switch Ope |
| XR1AEX4NV1XX | 制造商:Eaton Corporation 功能描述:SWITCH, ROCKER, SPST, 18A, 125VAC, BLACK, Contact Configuration:SPST, Switch Operation:Off-On, Contact Current Max:18A, Contact Voltage AC Nom:125V, Switch Mounting:Panel, Actuator / Cap Color:Amber, Illumination Color:Amber , RoHS Compliant: Yes |
| XR1BG33NV1XX | 制造商:Eaton Corporation 功能描述:SWITCH, ROCKER, SPDT, 18A, 125VAC, BLACK, Contact Configuration:SPDT, Switch Ope |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。