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| 型号： | DS3148 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/89页 |
| 文件大小： | 0K |
| 描述： | IC 8CH DS3/3 FRAMER 349-BGA |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 控制器类型： | DS3/E3 调帧器 |
| 接口： | LIU |
| 电源电压： | 3.135 V ~ 3.465 V |
| 电流 - 电源： | 640mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 349-BGA 裸露焊盘 |
| 供应商设备封装： | 349-HCBGA（27x27） |
| 包装： | 托盘 |
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DS3146/DS3146/DS31412 6-/8-/12-Channel DS3/E3 Framers
12 of 89
5.4 Receive Framer System Interface Pins
NAME
TYPE
FUNCTION
ROCLK
O
Receive Output Clock. ROCLK is used to clock data out of the receive framer on RDAT. ROCLK is
normally a buffered (and optionally inverted) version of RCLK. When diagnostic loopback is active, ROCLK
is a buffered (and optionally inverted) version of TICLK. If MC4:ROCLKI = 0, data is clocked out of the
framer on the rising edge of ROCLK. If ROCLKI = 1, data is clocked out on the falling edge of ROCLK.
RDAT
O
Receive Data Output. The incoming DS3/E3 data stream is serially clocked out of the receive framer on the
RDAT pin. RDAT is normally updated on the rising edge of ROCLK. To output data on the falling edge of
RDEN/
RGCLK
O
Receive Data Enable/Receive Gapped Clock. The receive framer can be configured to either output a data
enable (RDEN) or a gapped clock (RGCLK). In data enable mode, RDEN goes active when payload data is
available on the RDAT output pin and inactive when overhead data is present on the RDAT pin. In gapped
clock mode, RGCLK acts as a payload data clock for the RDAT output, toggling for each payload bit
position and not toggling for each framing overhead bit position. In DS3 mode, overhead data is defined as
the M bits, F bits, C bits, X bits, and P bits. In E3 mode, overhead data is defined as the FAS word, RAI bit,
and Sn bit (bits 1 to 12). To configure the receive framer for data enable mode, set MC4:RDENMS = 0. To
configure for gapped clock operation, set MC4:RDENMS = 1. RDEN is normally active high; to make RDEN
active low, set MC4:RDENI = 1. RGCLK normally is the same polarity as RCLK; to invert RGCLK, set
MC4:RDENI = 1.
RSOF
O
Receive Start of Frame. RSOF indicates the DS3 or E3 frame boundary on the incoming receive data
stream. RSOF pulses high for one TICLK cycle during the last bit of each DS3 or E3 frame. RSOF is
normally active high. Set MC4:RSOFI = 1 to make RSOF active low.
RLOS
O
Receive Loss of Signal. RLOS goes high when the receive framer is in a loss-of-signal (LOS) state. It
remains high as long as the LOS state persists and returns low when the framer exits the LOS state. See
Table 7-E and Table 7-F for details on the set and clear criteria for this pin. LOS status is also available
through the LOS status bit in the T3E3SR register.
ROOF
O
Receive Out of Frame. ROOF goes high when the receive framer is in an out-of-frame (OOF) state. It
remains high as long as the OOF state persists and returns low when the framer synchronizes. See Table
7-E and Table 7-F for details on the set and clear criteria for this pin. OOF status is also available through
the OOF status bit in the T3E3SR register.
RECU
I
Receive Error-Counter Update Strobe. Through the AECU control bit in the MC1 register, the device can be
configured to use this asynchronous input to initiate an update of the internal error counters in all the
framers on the device. A 0-to-1 transition on the RECU pin causes the device to load the error counter
registers with the latest internal error counts. This signal must be returned low before a subsequent update
of the error counters can occur. After toggling the RECU pin, the host processor must wait at least 100ns
before reading the error counter registers to allow the device time to load the registers. This signal is
logically ORed with the MECU control bit in MC1. If this signal is not used, it should be wired low.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3148N | 功能描述:网络控制器与处理器 IC 8 Port DS3/E3 Framer 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 |
| DS315 | 制造商:Hubbell Wiring Device-Kellems 功能描述:SWITCH, DECO SER, 3W, 15A 120/277V, BR |
| DS3150 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:3.3V, DS3/E3/STS-1 Line Interface Unit |
| DS3150DK | 功能描述:网络开发工具 DS3150 Dev Kit RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V |
| DS3150G | 功能描述:IC LIU T3/E3/STS-1 49-BGA RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:25 系列:- 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:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 供应商设备封装:16-PDIP 包装:管件 |
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