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參數(shù)資料
| 型號： | DS2187 |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RECEIVE LINE INTERFACE 18-DIP |
| 標準包裝： | 20 |
| 功能： | 接收線路接口 |
| 接口： | T1 |
| 電路數(shù)： | 1 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 電流 - 電源： | 18mA |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 18-DIP（0.300"，7.62mm） |
| 供應商設備封裝： | 18-PDIP |
| 包裝： | 管件 |
| 包括： | AMI / B8ZS / HDB3 編碼信號解碼器 |
| 產品目錄頁面： | 1429 (CN2011-ZH PDF) |
DS2187
5 of 10
0 CODE SUPPRESSION
The device will decode incoming B8ZS (RCLKSEL=0) or HDB3 (RCLKSEL=1) code words and replace
them with an all-0 code when ZCSEN=1. When ZCSEN=0, code words will pass through the device
without being altered. This feature can be disabled when the DS2187 is used with transceiver devices
such as the DS2180A DS2181A, DS2141A, or DS2143.
ALARM DETECTION
The extracted data is monitored for network alarm and error conditions. RCL is set when 192 consecutive
0s occur; it is cleared on the next one occurrence. AIS is set when less than three 0s have appeared at
RPOS and RNEG during the last two periods of the RAIS signal; once set, AIS will remain high for the
next two periods of RAIS . AIS will return low when more than two 0s appear. BPV reports bipolar
violations as they occur at RPOS and RNEG; B8ZS code words will not be flagged by BPV when
ZCSEN=1.
BYPASSING AND
LAYOUT CONSIDERATIONS
The DS2187 contains both precision analog and high-speed digital circuitry on the same chip. The power
supplies of these circuits (AVDD, AVSS, DVDD and DVSS) should be connected to system analog and
digital supplies. If separate system supplies do not exist, the appropriate supply pins can be tied together.
Tying the analog and digital supplies together on the DS2187 will not degrade its performance, provided
the power supply is sufficiently decoupled.
To assure optimum performance, the length of LCAP, RTIP and RRING printed circuit board traces
should be minimized and isolated from neighboring interconnect.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS2187+ | 功能描述:網絡控制器與處理器 IC Receive Line Interface RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS2187S | 功能描述:網絡控制器與處理器 IC Receive Line Interface RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS2187S/T&R | 制造商:Maxim Integrated Products 功能描述:IC RECEIVE LINE INTERFACE 20SOIC |
| DS2187S/T&R | 功能描述:網絡控制器與處理器 IC Receive Line Interface RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS2187S+ | 功能描述:網絡控制器與處理器 IC Receive Line Interface RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
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