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参数资料
| 型号： | DS2187+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/10页 |
| 文件大小： | 0K |
| 描述： | IC RECEIVE LINE INTERFACE 18-DIP |
| 标准包装： | 20 |
| 功能： | 接收线路接口 |
| 接口： | T1 |
| 电路数： | 1 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 电流 - 电源： | 18mA |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 18-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 18-PDIP |
| 包装： | 管件 |
| 包括： | AMI / B8ZS / HDB3 编码信号解码器 |
DS2187
3 of 10
PIN DESCRIPTION Table 1
PIN
SYMBOL
TYPE
DESCRIPTION
1AVDD
-
Analog Positive Supply. 5.0 volts.
2
RAIS
I
Reset Alarm Indication Signal.
Every other low pulse at this input
establishes the AIS alarm detection period.
3
ZCSEN
I
0 Code Suppression Enable.
When high, incoming B8ZS (RCLKSEL=0)
or HDB3 (RCLKSEL=1) code words are replaced with all 0s at RPOS and
RNEG; when low, no code replacement occurs.
4LCAP
-
Loop Cap.
Part of internal loop filter; attach a 10 microfarad capacitor from
this pin to VSS.
5
RCLKSEL
I
Receive Clock Select.
Tie to VSS for 1.544 MHz (T1) applications, to VDD for
2.048 MHz (CEPT) applications.
6
7
RTIP
RRING
I
Receive Tip and Ring.
Connect to line transformer as shown in Figure 2.
8
LOCK
O
Frequency Lock.
High state indicates that internal circuitry is phase- and
frequency-locked to the incoming signal at RRING and RTIP.
9
AVSS
-
Analog Signal Ground.
0.0 volts.
10
DVSS
-
Digital Signal Ground.
0.0 volts.
11
RCLK
O
Receive Clock.
Extracted line rate clock.
12
13
RNEG
RPOS
O
Receive Data.
Extracted receive data; updated on rising edge of RCLK.
14
NC
-
No Connect.
Do not connect to this pin.
15
BPV
O
Bipolar Violation.
Transitions high for the full bit period when a bit in
violation appears at RPOS or RNEG; B8ZS code words are not accused when
ZCSEN=1. BPV not valid for RCLKSEL=1 and ZCSEN=1.
16
AIS
O
Alarm Indication Signal.
High when the received data stream has contained
less than three 0s during the last two periods of the RAIS signal.
17
RCL
O
Receive Carrier Loss.
High if 192 0s appear at RPOS and RNEG; reset on
next occurrence of a one.
18
DVDD
-
Digital Positive Supply.
5.0 volts
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2187+ | 功能描述:网络控制器与处理器 IC Receive Line Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS2187S | 功能描述:网络控制器与处理器 IC Receive Line Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装: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:网络控制器与处理器 IC Receive Line Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS2187S+ | 功能描述:网络控制器与处理器 IC Receive Line Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
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