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參數(shù)資料
| 型號(hào)： | XRT75L02IVTR-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 2/50頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC LIU E3/DS3/STS-1 2CH 100TQFP |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 類型： | 線路接口裝置（LIU） |
| 驅(qū)動(dòng)器/接收器數(shù)： | 2/2 |
| 規(guī)程： | DS3，E3，STS-1 |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 100-LQFP |
| 供應(yīng)商設(shè)備封裝： | 100-TQFP（14x14） |
| 包裝： | 帶卷 (TR) |
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xr
XRT75L02
REV. 1.0.3
TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER
8
CLOCK INTERFACE
PIN #
SIGNAL NAME
TYPE
DESCRIPTION
66
E3CLK
I
E3 Clock Input (34.368 MHz ± 20 ppm):
If any of the channels is configured in E3 mode, a reference clock 34.368 MHz
is applied on this pin.
NOTE: In single frequency mode, this reference clock is not required.
63
DS3CLK
I
DS3 Clock Input (44.736 MHz ± 20 ppm):
If any of the channels is configured in DS3 mode, a reference clock 44.736
MHz. is applied on this pin.
NOTE: In single frequency mode, this reference clock is not required.
60
STS-1CLK/ 12M
I
STS-1 Clock Input (51.84 MHz ± 20 ppm):
If any of the channels is configured in STS-1 mode, a reference clock 51.84
MHz is applied on this pin..
In Single Frequency Mode, a reference clock of 12.288 MHz ± 20 ppm is con-
nected to this pin and the internal clock synthesizer generates the appropriate
clock frequencies based on the configuration of the channels in E3, DS3 or
STS-1.
99
SFM_EN
I
Single Frequency Mode Enable:
Tie this pin “High” to enable the Single Frequency Mode. A reference clock of
12.288 MHz ± 20 ppm is applied. This offers the flexibility of using a low cost
reference clock and configures the board for either E3 or DS3 or STS-1 without
the need to change any components on the board.
In the Single Frequency Mode (SFM) an output clock is provided for each chan-
nel if the CLKOUT_EN bit is set or CLKOUT_EN pin tied “High”.
Tie this pin “Low” if single frequency mode is not selected. In this case, the
appropriate reference clocks must be provided.
NOTE:
This pin is internally pulled down
80
46
CLKOUT_0
CLKOUT_1
O
Clock output for channel 0
Clock output for channel 1
Low jitter clock
is output for each channel based on the mode selection
(E3,DS3 or STS-1)
if the CLK_EN_n bit is set in the control register or
CLKOUT_EN pin is tied “High”.
This eliminates the need for a separate clock source for the framer.
NOTES:
1.
This clock output is only available in SFM mode.
2.
The maximum drive capability for the clockouts is 16 mA.
45
CLKOUT_EN
I
Clock Output Enable in Single Frequency Mode:
Tie this pin “High” to enable the output clocks via the CLKOUT pins.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT75L03 | 制造商:EXAR 制造商全稱:EXAR 功能描述:THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR |
| XRT75L03D | 制造商:EXAR 制造商全稱:EXAR 功能描述:THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER |
| XRT75L03DES | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 3 CH T3/E3/STS1 LIU+DESYNCH3.3V 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 |
| XRT75L03DIV | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 3CHNNEL E3/DS3/STS 1 SONET DE-SYNCH 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 |
| XRT75L03DIV-F | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 3-Ch DS3, E3, STS-1 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 |
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