参数资料
型号: DS26303LN-75+
厂商: Maxim Integrated Products
文件页数: 52/101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: 13
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
DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit
54 of 101
6 FUNCTIONAL DESCRIPTION
6.1
Power-Up and Reset
Internal power-on-reset circuitry generates a reset during power-up. All registers are reset to the default values.
Writing to the software-reset register generates at least a 1
μs reset cycle, which has the same effect as the power-
up reset.
6.2
Master Clock
The receiver uses the MCLK as a reference for clock recovery, jitter attenuation, and generating RCLKn during
LOS. The DS26303 requires 2.048MHz ±50ppm or 1.544MHz ±50ppm or a multiple thereof. The AIS transmission
uses MCLK for transmit all-ones condition. See register MC to set desired incoming frequency. If the PLLE bit is
not set, MCLK is whatever the incoming frequency is.
MCLK or RCLK can be used to output CLKA. Register CCR is used to select the clock generated for CLKA and the
TECLK. Any RCLKn can be selected as an input to the clock generator using this same register. For a detailed
description of selections available, see Figure 6-1.
Figure 6-1. Prescaler PLL and Clock Generator
Pre
Scaler
PLL
CLK
GEN
E1CLK
T1CLK
FREQS
MPS1..0
PLLE
PCLKS2..0
PCLKI1..0
RLCK1..8
PLLE
CLKA3..0
CLKAI
CLKA
RLOS16
CLKAE
TECLK
RLOS1
TECLKE
TECLKI
TECLKS
MCLK
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相关代理商/技术参数
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DS26303LN-75+ 功能描述:电信线路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray
DS26303LN-75+A3 功能描述:电信线路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray
DS26303LN-75A3 功能描述:电信线路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray
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
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