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参数资料
型号： DS3112+
厂商： Maxim Integrated Products
文件页数： 38/133页
文件大小： 0K
描述： IC MUX TEMPE T3/E3 256-BGA
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 40
控制器类型： 调帧器，多路复用器
接口： 并行/串行
电源电压： 3.135 V ~ 3.465 V
电流 - 电源： 150mA
工作温度： 0°C ~ 70°C
安装类型： 表面贴装
封装/外壳： 256-LBGA
供应商设备封装： 256-PBGA（27x27）
包装： 管件
产品目录页面： 1419 (CN2011-ZH PDF)
DS3112
132 of 133
14.12G.747 Framing Structure and E12 Multiplexing
The G.747 frame structure is made up of five 168-bit sets (Figure 14-9). The five sets are transmitted one
after another (...Set1/Set2/Set3/Set4/Set5/Set1...) to make up the complete G.747 frame structure. The
Frame Alignment Signal (FAS) is placed in the first 9 bits of Set 1. Set 2 contains the Remote Alarm
Indication (RAI) bit and a Parity Bit (PAR) as well as a reserved bit, which is fixed to a one. The PAR bit
will be set to a one when there are odd numbers of ones from the tributaries in the preceding frame and it
will be set to a zero when there is an even number of ones. The parity calculation does not include the
FAS, RAI, reserved bit, or Justification Control Bits. The three tributaries are bit interleaved starting with
a bit from Tributary 1 immediately after the FAS in Set 1. The first three bits of Sets 3, 4, and 5 are the
Justification Control Bits. Bits 4 to 6 of Set 5 are the Stuffing Bits. The Justification Control bits control
when data will be stuffed into the Stuffing Bit positions. When a majority of the three Justification
Control Bits from a particular tributary is set to zero, the Stuffing Bit position will be used for tributary
data. When the Justification Control Bits are majority decoded to be one, the Stuffing Bit will not be used
for tributary data.
Figure 14-9. G.747 Frame Structure
Set 1
Bit 1
Bit 168
FAS (111010000)
b11
b21
b31
b12
b22
b32
b13
...bits from the tributaries...
Set 2
Bit 1
Bit 168
RAI
PAR
1
...bits from the tributaries...
Set 3
Bit 1
Bit 168
c11
c21
c31
...bits from the tributaries...
Set 4
Bit 1
Bit 168
c12
c22
c32
...bits from the tributaries...
Set 5
Bit 1
Bit 168
c13
c23
c33
s1
s2
s3
...bits from the tributaries...
NOTE 1:
BIT 1 OF SET 1 IS TRANSMITTED FIRST.
NOTE 2:
BJI
TRIBUTARY BITS
J = TRIBUTARY NUMBER
I = BIT NUMBER
NOTE 3:
CJI
JUSTIFICATION CONTROL BITS
J = TRIBUTARY NUMBER
I = CONTROL STUFFING BIT NUMBER
NOTE 4:
SJ
STUFFING BITS
J = TRIBUTARY NUMBER
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相关代理商/技术参数
参数描述
DS3112+ 功能描述:网络控制器与处理器 IC TEMPE T3/E3 MUX FRMR & M13/E13/G.747 MUX 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
DS3112+W 功能描述:网络控制器与处理器 IC TEMPE T3/E3 MUX FRMR & M13/E13/G.747 MUX 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
DS3112D1 功能描述:网络控制器与处理器 IC TEMPE T3/E3 MUX FRMR & M13/E13/G.747 MUX 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
DS3112D1+ 功能描述:网络控制器与处理器 IC TEMPE T3/E3 MUX FRMR & M13/E13/G.747 MUX 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
DS3112DK 功能描述:网络开发工具 DS3112 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
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