- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄374004 > ADM488AR (ANALOG DEVICES INC) Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers PDF資料下載
參數(shù)資料
| 型號： | ADM488AR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers |
| 中文描述： | LINE TRANSCEIVER, PDSO8 |
| 封裝： | MS-012AA, SOIC-8 |
| 文件頁數(shù)： | 10/12頁 |
| 文件大?。?/td> | 212K |
| 代理商： | ADM488AR |
ADM488/ADM489
–10–
REV. 0
T he ADM488/ADM489 comfortably meets Classification 1 at
the most stringent (Level 3) requirement. In fact, field strengths
up to 30 V/m showed no performance degradation and error-
free data transmission continued even during irradiation.
T able IV.
Level
V/m
Field Strength
1
2
3
1
3
10
E MI E MISSIONS
T he ADM488/ADM489 contains internal slew rate limiting in
order to minimize the level of electromagnetic interference
generated. Figure 22 shows an FFT plot when transmitting a
150 kHz data stream.
10
0%
100
90
10dB/DIV
500kHz/DIV
0
5MHz
Figure 22. Driver Output Waveform and FFT Plot Trans-
mitting @ 150 kHz
As may be seen, the slew limiting attenuates the high frequency
components. EMI is therefore reduced, as are reflections due to
improperly terminated cables.
EN55022, CISPR22 defines the permitted limits of radiated
and conducted interference from Information T echnology
Equipment (IT E).
T he objective is to control the level of emissions, both con-
ducted and radiated.
For ease of measurement and analysis, conducted emissions are
assumed to predominate below 30 MHz, while radiated emis-
sions predominate above this frequency.
CONDUCT E D E MISSIONS
T his is a measure of noise that is conducted onto the mains
power supply. T he noise is measured using a LISN (Linc Im-
pedance Stabilizing Network) and a spectrum analyzer. T he test
setup is illustrated in Figure 23. T he spectrum analyzer is set to
scan the spectrum from 0 MHz to 30 MHz. Figure 24 shows
that the level of conducted emissions from the ADM488/
ADM489 are well below the allowable limits.
SPECTRUM
ANALYZER
DUT
LISN
PSU
Figure 23. Conducted Emissions Test Setup
LOG FREQUENCY (0.15–30) – MHz
0.3
0.6
1
3
6
10
30
80
0
70
40
30
20
10
60
50
LIMIT
d
Figure 24. Conducted Emissions
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADM489AR | Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers |
| ADM489ARU | PHOTODIODE, 0.05A, 1.3V; Area, active:7.5mm2; Case style:SOT-23; Sensitivity:0.6A/W @ 950nm; Wavelength, peak:940nm RoHS Compliant: Yes |
| ADM5104 | Four-channel FastFast Ethernet 110Base-TX Transceiver(四通道110Base-TX快速以太網(wǎng)收發(fā)器) |
| ADM5170AN | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| ADM5170AP | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADM488AR-REEL | 制造商:Analog Devices 功能描述:Single Transmitter/Receiver RS-422/RS-485 8-Pin SOIC N T/R 制造商:Analog Devices 功能描述:LINE TRNSCVR 1TR 1TX 1RX 8SOIC N - Tape and Reel |
| ADM488AR-REEL7 | 制造商:Analog Devices 功能描述:Single Transmitter/Receiver RS-422/RS-485 8-Pin SOIC N T/R |
| ADM488ARZ | 功能描述:IC TX/RX RS-485 LO-SLEW 8SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:RS-232 & USB Transceiver 標(biāo)準(zhǔn)包裝:2,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):1/1 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2 |
| ADM488ARZ | 制造商:Analog Devices 功能描述:IC RS485 TRANSCEIVER 250KBPS 5.5V SOIC8 |
| ADM488ARZ-REEL | 功能描述:IC TXRX RS-485 DIFF LP 8SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:121 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):1/1 規(guī)程:RS422，RS485 電源電壓:3 V ~ 3.6 V 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-DFN（3x3） 包裝:管件 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。