參數(shù)資料
型號： XRT83VSH316
廠商： Exar Corporation
英文描述： 16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
中文描述： 16-CHANNEL的T1/E1/J1短途線路接口單元
文件頁數(shù)： 21/96頁
文件大小： 600K
代理商： XRT83VSH316
PRELIMINARY
16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83VSH316
19
REV. P1.0.3
2.0
CLOCK SYNTHESIZER
In system design, fewer clocks on the network card could reduce noise and interference. Network cards that
support both T1 and E1 modes must be able to produce 1.544MHz and 2.048MHz transmission data. The
XRT83VSH316 has a built in clock synthesizer that requires only one input clock reference by programming
CLKSEL[3:0] in the appropriate global register. A list of the input clock options is shown in
Table 1
.
The single input clock reference is used to generate multiple timing references. The first objective of the clock
synthesizer is to generate 1.544MHz and 2.048MHz for each of the 16 channels. This allows each channel to
operate in either T1 or E1 mode independent from the other channels. The state of the equalizer control bits in
the appropriate channel registers determine whether the LIU operates in T1 or E1 mode. The second objective
is to generate additional output clock references for system use. The available output clock references are
shown in
Figure 2
.
F
IGURE
2. S
IMPLIFIED
B
LOCK
D
IAGRAM
OF
THE
C
LOCK
S
YNTHESIZER
T
ABLE
1: I
NPUT
C
LOCK
S
OURCE
S
ELECT
CLKSEL[3:0]
I
NPUT
C
LOCK
R
EFERENCE
0h (0000)
2.048 MHz
1h (0001)
1.544MHz
8h (1000)
4.096 MHz
9h (1001)
3.088 MHz
Ah (1010)
8.192 MHz
Bh (1011)
6.176 MHz
Ch (1100)
16.384 MHz
Dh (1101)
12.352 MHz
Eh (1110)
2.048 MHz
Fh (1111)
1.544 MHz
Clock
Synthesizer
Internal
Reference
1.544MHz
2.048MHz
Input Clock
8kHz
1.544Mhz
2.048MHz
2.048/4.096/8.192/16.384 MHz
1.544/3.088/6.176/12.352MHz
8kHzOUT
MCLKE1out
MCLKT1out
MCLKT1Nout
MCLKE1Nout
Programmable
Programmable
相關(guān)PDF資料
PDF描述
XRT83VSH316IB 16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83VSH38 8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83VSH38IB 8-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT84L14 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT84L18 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT83VSH316_07 制造商:EXAR 制造商全稱:EXAR 功能描述:16-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83VSH316ES 功能描述:外圍驅(qū)動器與原件 - PCI 16 CH T1/E1LIUSH LOW COST VERSION RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT83VSH316IB 功能描述:接口 - 專用 16 CH, SHRT HAUL T1/E1 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
XRT83VSH316IB-F 功能描述:外圍驅(qū)動器與原件 - PCI 16 Channel Short-Haul RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT83VSH316IB-F 制造商:Exar Corporation 功能描述:T1/E1 LIU IC
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