参数资料
型号: ADM1181AARWZ-REEL
厂商: Analog Devices Inc
文件页数: 5/16页
文件大小: 0K
描述: IC TXRX RS-232 5V 15KV 16SOIC
标准包装: 1,000
类型: 收发器
驱动器/接收器数: 2/2
规程: RS232
电源电压: 4.5 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
供应商设备封装: 16-SOIC W
包装: 带卷 (TR)
ADM202E/ADM1181A
Rev. C | Page 13 of 16
LOG FREQUENCY (MHz)
80
70
0
0.3
30
0.6
1
60
50
10
40
30
20
10
dB
V
LIMIT
36
00066-025
Figure 25. ADM202E Conducted Emissions
RADIATED EMISSIONS
Radiated emissions are measured at frequencies in excess of
30 MHz. RS-232 outputs are designed for operation at high
baud rates, while driving cables can radiate high frequency EM
energy. The previously described causes of conducted emissions
can also cause radiated emissions. Fast RS-232 output transitions
can radiate interference, especially when lightly loaded and
driving unshielded cables. Charge-pump devices are also prone
to radiating noise due to the high frequency oscillator and the
high voltages being switched by the charge pump. The move
toward smaller capacitors to conserve board space has resulted
in higher frequency oscillators in the charge-pump design,
causing higher levels of conducted and radiated emissions.
The RS-232 outputs on the ADM202E feature a controlled slew
rate to minimize the level of radiated emissions, yet they are fast
enough to support data rates of up to 230 kBaud.
Figure 27 shows radiated emissions vs. frequency. The levels of
emissions are well within specifications without the need for
additional shielding or filtering components. The ADM202E
was operated at maximum baud rates and configured like a
typical RS-232 interface. Testing for radiated emissions was
carried out in a shielded anechoic chamber.
TURNTABLE
DUT
RADIATED NOISE
ADJUSTABLE
ANTENNA
TO
RECEIVER
00066-026
Figure 26. Radiated Emissions Test Setup
START 30.0MHz
STOP 200.0MHz
LIMIT
dB
V
80
70
60
50
40
30
20
10
0
00066-027
Figure 27. ADM202E Radiated Emissions vs. Frequency
相关PDF资料
PDF描述
CXC3106A1811P CONN PLUG 5POS STRGHT PIN
D38999/24WC8PB CONN RCPT 8POS JAM NUT W/PINS
AD9223ARZ-REEL IC ADC 12BIT 3.0MSPS 28SOIC
EN3P11F26X CONN RCPT 11POS FEMALE PANEL #26
MS27473T16F35SA CONN PLUG 55POS STRAIGHT W/SCKT
相关代理商/技术参数
参数描述
ADM1184 制造商:AD 制造商全称:Analog Devices 功能描述:0.8% Accurate Quad Voltage Monitor
ADM1184ARMZ 功能描述:IC VOLT MONITOR/SEQ 4CH 10MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 其它有关文件:STM6905 View All Specifications 标准包装:1 系列:- 类型:多压监控器 监视电压数目:5 输出:开路漏极或开路集电极 复位:低有效 复位超时:最小为 140 ms 电压 - 阀值:2.188V,2.955V,可调,可调,可调 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP,8-MSOP(0.118",3.00mm 宽) 供应商设备封装:8-TSSOP 包装:Digi-Reel® 产品目录页面:1197 (CN2011-ZH PDF) 其它名称:497-8728-6
ADM1184ARMZ 制造商:Analog Devices 功能描述:; Leaded Process Compatible:Yes; Peak Re
ADM1184ARMZ1 制造商:AD 制造商全称:Analog Devices 功能描述:0.8% Accurate Quad Voltage Monitor
ADM1184ARMZ-REEL7 功能描述:IC VOLT MONITOR/SEQ 4CH 10MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:1 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:高有效 复位超时:- 电压 - 阀值:1.8V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-TSOP(0.059",1.50mm 宽)5 引线 供应商设备封装:5-TSOP 包装:剪切带 (CT) 其它名称:NCP301HSN18T1GOSCT