參數(shù)資料
型號(hào)： DS26303GN-120
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 數(shù)字傳輸電路
英文描述： 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
中文描述： DATACOM, PCM TRANSCEIVER, PBGA160
封裝： PLASTIC, BGA-160
文件頁數(shù)： 53/97頁
文件大?。?/td> 966K
代理商： DS26303GN-120
DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit
53 of 97
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 1 s reset cycle, which has the same effect as the power-up
reset. A reset can also be performed in software by writing to
SWR
register.
6.2 Master Clock
The DS26303 requires 2.048MHz ±50ppm or 1.544MHz ±50ppm or multiple thereof. The receiver uses the MCLK
as a reference for clock recovery, jitter attenuation, and generating RCLK during LOS. 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 also be used to output CLKA. Register
CCR
is used to select the clock generated for CLKA
and the TECLK. Any RCLK can also 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. Pre-Scaler 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
相關(guān)PDF資料
PDF描述
DS26303GN-75 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
DS26303L-120 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
DS26303L-75 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
DS26303LN-120 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
DS26303LN-75 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS26303GN-75 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
DS26303L-120 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
DS26303L-120+ 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
DS26303L-120+A3 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
DS26303L-120A3 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
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