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參數(shù)資料
| 型號： | ADM2486BRWZ-REEL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | High Speed, Half-Duplex iCoupler Isolated RS-485 Transceiver |
| 中文描述： | LINE TRANSCEIVER, PDSO16 |
| 封裝： | LEAD FREE, MS013AA, SOIC-16 |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 294K |
| 代理商： | ADM2486BRWZ-REEL |
ADM2486
Rev. C | Page 16 of 20
APPLICATIONS INFORMATION
POWER_VALID INPUT
To avoid chatter on the A and B outputs caused by slow power-
up and power-down transients on VDD1 (>100 s/V), the device
features a power_valid (PV) digital input. This pin should be
driven low until VDD1 exceeds 2.0 V. When VDD1 is greater than
2.0 V, this pin should be driven high. Conversely, upon power-
down, PV should be driven low before VDD1 reaches 2.0 V.
If the PV pin is driven with an open-drain output, the
recommended value for the pull-up resistor is a 10 k resistor,
The power_valid input can be driven, for example, by the
output of a system reset circuit such as the ADM809Z, which
has a threshold voltage of 2.32 V.
ADM809Z
ADM2486
VDD1
PV
GND1
VDD1
RESET
VDD1
tPOR
2.32V
2.0V
2.32V
2.0V
04604-023
Figure 29. Driving PV with ADM809Z
ADM809Z
ADM2486
VDD1
PV
GND1
VDD1
RESET
VDD1
tPOR
2.32V
2.0V
2.32V
2.0V
04604-030
100pF
10k
Figure 30. Driving PV with an Open-Drain Output
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| ADM2487EBRWZ-REEL7 | 功能描述:IC TXRX RS485 ISO W/ESD 16SOIC 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 |
| ADM2490E | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Speed, ESD-Protected, Full-Duplex, iCoupler Isolated RS-485 Transceiver |
| ADM2490E_VA | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Speed, ESD-Protected, Full-Duplex, iCoupler Isolated RS-485 Transceiver |
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