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參數(shù)資料
| 型號： | XRT7295ATIW |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 2/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RCVR DS3/SONET STS-1 20SOJ |
| 標準包裝： | 36 |
| 類型： | 接收器 |
| 驅動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | DS3，STS-1 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-BSOJ |
| 供應商設備封裝： | 20-SOJ |
| 包裝： | 管件 |
XRT7295AT
10
Rev.1.20
OUTPUT JITTER
The total jitter appearing on the RCLK output during
normal operation consists of two components. First,
some jitter appears on RCLK because of jitter on the
incoming signal. (The next section discusses the jitter
transfer characteristic, which describes the relationship
between input and output jitter.) Second, noise sources
within the XRT7295AT device and noise sources that are
coupled into the device through the power supplies and
data pattern dependent jitter due to misequalization of the
input signal, all create jitter on RCLK. The magnitude of
this internally generated jitter is a function of the PLL
bandwidth, which in turn is a function of the input 1s
density. For higher 1s density, the amount of generated
jitter decreases. Generated jitter also depends on the
quality of the power supply bypassing networks used.
Figure 12
shows the suggested bypassing network, and
Table 5
lists the typical generated jitter performance.
Figure 7. Loss Characteristic of 728A
Coaxial Cable (450 ft.)
Figure 8. Phase Characteristic of 728A
Coaxial Cable (450 ft.)
12
10
8
6
4
2
0
1.0 2.0
5.0 10
20
50
100
Frequency (MHz)
100
80
60
40
20
0
1.0
2.0
5.0 10
20
50 100
Frequency (MHz)
L
o
ss
(d
B
)
P
h
as
e
(D
eg
re
e)
JITTER TRANSFER CHARACTERISTIC
The jitter transfer characteristic indicates the fraction of
input jitter that reaches the RCLK output as a function of
input jitter frequency. Table 5 shows Important jitter
transfer characteristic parameters. Figure 9 also shows a
typical characteristic, with the operating conditions as
described in Table 5. Although existing standards do not
specify jitter transfer characteristic requirements, the
XRT7295AT information is provided here to assist in
evaluation of the device.
Parameter
Typ
Max
Unit
Generated Jitter1
All 1s pattern
1.0
ns peak-to-peak
Repetitive “100”
pattern
1.5
ns peak-to-peak
Jitter Transfer
Characteristic2
Peaking
0.05
dB
Peaking
f 3dB
0.05
205
dB
kHz
Notes
1 Repetitive input data pattern at nominal DSX-3 level with VDD
= 5V TA = 25°C.
2 Repetitive “100 ” input at nominal DSX-3 level with VDD = 5V,
TA = 25°C.
Table 5. Generated Jitter and Jitter Transfer
Characteristics
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| XRT7295ATIW-F | 功能描述:外圍驅動器與原件 - PCI -.5V--6.5V temp -45 to 85C RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT7295ATIW-F | 制造商:Exar Corporation 功能描述:T3/E3 LIU IC |
| XRT7295ATIWTR | 功能描述:外圍驅動器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT7295ATIWTR-F | 功能描述:外圍驅動器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT7295CTIW | 功能描述:總線接收器 DS3/E3/SONET STS-1 Line Receiver RoHS:否 制造商:Texas Instruments 接收機數(shù)量:4 接收機信號類型:Differential 接口類型:EIA/TIA-422-B, V.11 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TSSOP-16 封裝:Reel |
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