参数资料
型号: DS26303LN-75+A3
厂商: Maxim Integrated Products
文件页数: 64/101页
文件大小: 0K
描述: IC LIU E1/T1/J1 3.3V 144-ELQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
类型: 线路接口装置(LIU)
驱动器/接收器数: 8/8
规程: T1/E1/J1
电源电压: 3.135 V ~ 3.465 V
安装类型: 表面贴装
封装/外壳: 144-LQFP 裸露焊盘
供应商设备封装: 144-LQFP 裸露焊盘
包装: 托盘
其它名称: 90-26303+7N3
DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit
65 of 101
6.7
G.772 Monitor
In this application, only seven LIUs are functional and one LIU is used for nonintrusive monitoring of input and
output of the other seven channels. Channel 1 is used for monitoring channels 2 to 8. G.772 monitoring is
configured by the GMC register (see Table 5-9). While monitoring with channel 1, the device can be configured in
remote loopback and the monitored signal can be output on TTIP1 and TRING1.
6.8
Loopbacks
The DS26303 provides four loopbacks for diagnostic purposes: analog loopback (ALBC:ALBCn set), digital
loopback (DLBC:DLBCn set), remote loopback (RLBC:RLBCn set), and dual loopback (DLBC:DLBCn set and
(RLBC:RLBCn set).
6.8.1
Analog Loopback
The analog output of the transmitter TTIPn and TRINGn is looped back to RTIPn and RRINGn of the receiver. Data
at RTIPn and RRINGn is ignored in analog loopback. See Figure 6-8.
Figure 6-8. Analog Loopback
Line
Driver
HD B 3 /
B8 Z S
En c o d e r
O pt i ona l
Ji t t e r
A t t e nu at or
Tr a n s m i t
Di g i t a l
T r ans m i t
An a l o g
TCLK
TPOS
TNEG
HD B 3 /
B8 Z S
D ec oder
O pt i onal
Ji t t e r
A t t e nuat or
Re c e i v e
Di g i t a l
Re c e i v e
An a l o g
RCLK
RPOS
RNEG
Rtip
Rring
6.8.2
Digital Loopback
The transmit system data TPOSn, TNEGn, and TCLKn are looped back to output on RCLKn, RPOSn, and RNEGn.
The data input at TPOSn and TNEGn is encoded and output on TTIPn and TRINGn. Signals at RTIPn and
RRINGn are ignored. This loopback is conceptually shown in Figure 6-9.
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DS26303LN-XXX+ 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
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DS26303L-XXX+ 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
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