參數(shù)資料
型號: XRT83L314
廠商: Exar Corporation
英文描述: 14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT
中文描述: 14-CHANNEL的T1/E1/J1 LONG-HAUL/SHORT-HAUL線路接口單元
文件頁數(shù): 19/84頁
文件大?。?/td> 631K
代理商: XRT83L314
XRT83L314
14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.0
15
2.1
2.1.1
The input stage of the receive path accepts standard T1/E1/J1 twisted pair or E1 coaxial cable inputs through
RTIP and RRING. The physical interface is optimized by placing the terminating impedance inside the LIU.
This allows one bill of materials for all modes of operation reducing the number of external components
necessary in system design. The receive termination (along with the transmit termination) impedance is
selected by programming TERSEL[1:0] to match the line impedance. Selecting the internal impedance is
shown in Table 2.
Line Termination (RTIP/RRING)
CASE 1: Internal Termination
The XRT83L314 has the ability to switch the internal termination to "High" impedance by programming
RxTSEL in the appropriate channel register. For internal termination, set RxTSEL to "1". By default, RxTSEL
is set to "0" ("High" impedance). For redundancy applications, a dedicated hardware pin (RxTSEL) is also
available to control the receive termination for all channels simultaneously. This hardware pin takes priority
over the register setting if RxTCNTL is set to "1" in the appropriate global register. If RxTCNTL is set to "0", the
state of this pin is ignored. See Figure 4 for a typical connection diagram using the internal termination.
F
IGURE
4. T
YPICAL
C
ONNECTION
D
IAGRAM
U
SING
I
NTERNAL
T
ERMINATION
T
ABLE
2: S
ELECTING
THE
I
NTERNAL
I
MPEDANCE
TERSEL[1:0]
R
ECEIVE
T
ERMINATION
0h (00)
100
1h (01)
110
2h (10)
75
3h (11)
120
R
TIP
R
RING
XRT83L314 LIU
1:1
Internal Impedance
Line Interface T1/E1/J1
One Bill of Materials
Receiver
Input
相關(guān)PDF資料
PDF描述
XRT83L314IB 14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT
XRT83L34 QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
XRT83L34IV QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
XRT83SH314 14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83SH314_0610 14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT83L314ES 功能描述:LIN 收發(fā)器 RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8
XRT83L314IB 功能描述:時鐘合成器/抖動清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
XRT83L314IB-F 功能描述:時鐘合成器/抖動清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
XRT83L314IB-L 功能描述:LIN 收發(fā)器 14 channel, LH/SH T1/E1 LIU RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8
XRT83L34 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR