参数资料
型号: XRT75L06IB-F
厂商: Exar Corporation
文件页数: 20/63页
文件大小: 0K
描述: IC LIU E3/DS3/STS-1 6CH 217BGA
标准包装: 60
类型: 线路接口装置(LIU)
驱动器/接收器数: 6/6
规程: DS3,E3,STS-1
电源电压: 3.135 V ~ 3.465 V
安装类型: 表面贴装
封装/外壳: 217-BBGA
供应商设备封装: 217-BGA(23x23)
包装: 托盘
XRT75L06
SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
REV. 1.0.3
24
3.0
THE TRANSMITTER SECTION
The transmitter is designed so that the LIU can accept serial data from a local device, encode the data
properly, and then output an analog pulse according to the pulse shape chosen in the appropriate registers.
This section describes the detailed operation of various blocks within the transmit path. A simplified block
diagram of the transmit path is shown in Figure 13.
FIGURE 13. TRANSMIT PATH BLOCK DIAGRAM
3.1
Transmit Digital Input Interface
The method for applying data to the transmit inputs of the LIU is a serial interface consisting of TxClk, TxPOS,
and TxNEG. For single rail mode, only TxClk and TxPOS are necessary for providing the local data from a
Framer device or ASIC. Data can be sampled on either edge of the input clock signal by programming the
appropriate register. A typical interface is shown in Figure 14.
FIGURE 14. TYPICAL INTERFACE BETWEEN TERMINAL EQUIPMENT AND THE XRT75L06 (DUAL-RAIL DATA)
Channel n
Device
Monitor
MTIP_n
MRing_n
DMO_n
Timing
Control
Tx
Pulse
Shaping
HDB3/
B3ZS
Encoder
Tx
Control
Jitter
Attenuator
MUX
Line
Driver
TxON
TxClk_n
TxPOS_n
TxNEG_n
TTIP_n
TRing_n
Terminal
Equipment
(E3/DS3 or STS-1
Framer)
Exar E3/DS3/STS-1 LIU
Transmit
Logic
Block
TxPOS
TxNEG
TxLineClk
TPData
TNData
TxClk
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