參數(shù)資料
型號(hào)： DS26303GN-75
廠商： Maxim Integrated Products, Inc.
英文描述： 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
中文描述： 3.3，E1/T1/J1，短途，八線路接口單元
文件頁(yè)數(shù)： 21/97頁(yè)
文件大?。?/td> 966K
代理商： DS26303GN-75
DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit
21 of 97
4.1 Hardware and Host Port Operation
4.1.1 Hardware Mode
The DS26303 supports a hardware configuration mode that allows the user to configure the device through setting
levels on the device’s pins. This mode allows the configuration of the DS26303 without the use of a
microprocessor. Not all of the device features are supported in the hardware mode. To see all available options for
this hardware mode, see the pin descriptions in
Table 4-1
.
The following table provides two basic examples of configurations available in hardware mode by setting pins.
Table 4-2. Hardware Mode Configuration Examples
STANDARD MODE CONFIGURATION
PIN NAME,
HARDWARE
MODE
TTIP[8:1]
TRING[8:1]
RTIP[8:1]
RRING[8:1]
TPOS[8:1]
TNEG[8:1]
TCLK[8:1]
RPOS[8:1]
RNEG[8:1]
RCLK[8:1]
MCLK
RLOS
[8:1]
MODESEL
T1
E1
NOTES
Output
Output
Input
Input
Input
Input
Output
Output
Input
Input
Input
Input
—
—
—
—
—
—
—
—
—
—
Used as recovery clock.
Meets T1.231 and ITU G.775.
Low for hardware mode.
Input: 1.544MHz
Output
Output
Output: 1.544MHz
Input: 1.544MHz
Output
0
Input: 2.048MHz
Output
Output
Output: 2.048MHz
Input: 2.048MHz
Output
0
0
(Part number ends in –75)
1
N.C.: Pulled to VDDIO/2
000
TIMPRM
0
100 for T1 mode/75 E1 mode.
CODE
JAS
TS[2:0]
1
AMI endocoding/decoding.
Jitter attenuator is not used.
Set template T1 (655ft)-100 /E1-75
Receive impedance should default to
on.
Not used in hardware mode.
Internally pulled to VDDIO/2.
Internal impedance mode selected.
No monitoring enabled.
TTIP and TRING are outputs.
RPOSn/RNEGn are clocked on rising
edge.
JTAG.
Reset.
Not available in hardware node.
Pull low or ground. Used only in factory
test.
N.C.: Pulled to VDDIO/2
111
RIMPOFF
0
0
INTB
LP[8:1]
RIMPMS
GMC[3:0]
OE
N.C.
N.C.
N.C.: Pulled to VDDIO/2
0
0000
1
N.C.: Pulled to VDDIO/2
0
0000
1
CLKE
0
0
JTRSTB
JTMS
JTCLK
JTDO
JTDI
RSTB
CLKA
Input, Pulled Up
Input
Input
Output, High-Z
Input, Pulled Up
Input, Pullup
N.C.
Input, Pulled Up
Input
Input
Output, High-Z
Input, Pulled Up
Input, Pullup
N.C.
scan_mode
0
0
相關(guān)PDF資料
PDF描述
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
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
DS26303L-75 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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