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参数资料
型号： DS32512N#
厂商： Maxim Integrated Products
文件页数： 40/130页
文件大小： 0K
描述： IC LIU DS3/E3/STS-1 484-BGA
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 60
类型： 线路接口装置（LIU）
规程： DS3
电源电压： 3.135 V ~ 3.465 V
安装类型： 表面贴装
封装/外壳： 484-BGA
供应商设备封装： 484-BGA（23x23）
包装： 管件
DS32506/DS32508/DS32512
17 of 130
7.2 Detailed Pin Descriptions
n = port number (1 to 12 for DS32512, 1 to 8 for DS32508, 1 to 6 for DS32506). I = input, Ipu = input with internal pullup resistor, Ipd = input with
internal pulldown resistor, Ia = analog input, I/O = bidirectional in/out, I/Opd = bidirectional in/out with internal pulldown resistor, O = output, Oz =
high-impedance output (needs an external pullup or pulldown resistor to keep the node from floating), Oa = analog output (high impedance), P=
power supply or ground. All unused input pins without pullup should be tied low. Note: All internal pullup resistors are 50k
Ω tied to 2.2V DC.
Table 7-2. Analog Line Interface Pin Descriptions
NAME
TYPE
FUNCTION
TXPn,
TXNn
Oa
Transmitter Analog Outputs. These differential AMI outputs are coupled to the outbound 75
Ω
coaxial cable through a 1:1 transformer (Figure 4-1). These outputs can be disabled (high
impedance) using the TOEn pin or the TOE or TPD configuration bits. See Section 8.2.8.
RXPn,
RXNn
Ia
Receiver Analog Inputs. These differential AMI inputs are coupled to the inbound 75
Ω coaxial
cable through a 1:1 transformer (Figure 4-1). See Section 8.3.1.
Table 7-3. Digital Framer Interface Pin Descriptions
NAME
TYPE
FUNCTION
TCLKn
I
Transmit Clock. A DS3 (44.736MHz
±20ppm), E3 (34.368MHz ±20ppm), or STS-1
(51.840MHz
±20ppm) clock should be applied at this pin. Data to be transmitted is clocked into
the device at TPOS/TDAT and TNEG either on the rising edge of TCLK (TCLKI = 0) or the
falling edge of TCLK (TCLKI = 1). When pin TCC = 1, all ports are clocked by TCLK1, and
TCLKx (x
≠ 1) are ignored. See Section 8.2.1 for additional details.
TPOSn/
TDATn
I
Transmit Positive AMI/Transmit NRZ Data. This pin is sampled either on the rising edge of
TCLK (TCLKI = 0) or on the falling edge of TCLK (TCLKI = 1). See Section 8.2.2.
TPOSn: When the transmitter is configured to have a bipolar interface (TBIN = 0), a positive
pulse is transmitted on the line when TPOS is high.
TDATn: When the transmitter is configured to have a binary interface (TBIN = 1), the data on
TDAT is transmitted after B3ZS or HDB3 encoding.
TNEGn
I
Transmit Negative AMI. When the transmitter is configured to have a bipolar interface (TBIN =
0), a negative pulse is transmitted on the line when TNEG is high. When the transmitter is
configured to have a binary interface (TBIN = 1), TNEG is ignored and should be wired either
high or low. TNEG is sampled either on the rising edge of TCLK (TCLKI = 0) or the falling edge
of TCLK (TCLKI = 1). See Section 8.2.2.
RCLKn
Oz
Receive Clock. The clock recovered from the receive signal is output on the RCLK pin.
Recovered data is output on the RPOS/RDAT and RNEG/RLCV pins on the falling edge of
RCLK (RCLKI = 0) or the rising edge of RCLK (RCLKI = 1). During a loss-of-signal condition
(RLOSn = 0), the RCLK output signal is derived from the LIU’s reference clock. See Section
8.3.6.
RPOSn/
RDATn
Oz
Receive Positive AMI/Receive NRZ Data. This pin is updated either on the falling edge of
RCLK (RCLKI = 0) or the rising edge of RCLK (RCLKI = 1). See Section 8.3.6.
RPOSn: When the receiver is configured to have a bipolar interface (RBIN = 0), RPOS pulses
high for each positive AMI pulse received.
RDATn: When the receiver is configured to have a binary interface (RBIN = 1), RDAT outputs
decoded binary data.
RNEGn/
RLCVn
Oz
Receive Negative AMI/Receive Line-Code Violation. This pin is updated either on the falling
edge of RCLK (RCLKI = 0) or the rising edge of RCLK (RCLKI = 1). See Section 8.3.6 for
further details on code violations.
RNEGn: When the receiver is configured to have a bipolar interface (RBIN = 0), RNEG pulses
high for each negative AMI pulse received.
RLCVn: When the receiver is configured to have a binary interface (RBIN = 1), RLCV pulses
high to flag code violations.
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参数描述
DS32512N# 功能描述:网络控制器与处理器 IC 12-Port DS3/E3/STS-1 Line Interface Unit 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
DS32512N+ 功能描述:网络控制器与处理器 IC 12-Port DS3/E3/STS-1 Line Interface Unit 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
DS32512NA2 制造商:Maxim Integrated Products 功能描述:DS32512 X12 DS3/E3 LIU REVA2 IND - Rail/Tube
DS32512NW 功能描述:网络控制器与处理器 IC 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
DS32512W 功能描述:网络控制器与处理器 IC 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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