- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄359429 > VSC7177 (Maxim Integrated Products, Inc.) Enhanced 2:1 Port Selector for Serial ATA and Serial Attached SCSI PDF資料下載
參數(shù)資料
| 型號： | VSC7177 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Enhanced 2:1 Port Selector for Serial ATA and Serial Attached SCSI |
| 中文描述： | 增強(qiáng)型2:1端口選擇器，用于串行ATA和串行連接SCSI |
| 文件頁數(shù)： | 11/24頁 |
| 文件大?。?/td> | 253K |
| 代理商： | VSC7177 |
11 of 24
Revision 4.2
July 29, 2005
Confidential
VSC7177
Data Sheet
Output Amplitude and Pre-Emphasis
The output buffers each have an amplitude control input pin (HIV0, HIV1, and HIV2 corresponding to port 0, port 1,
and port 2, respectively) that sets the differential output voltage to normal Serial ATA levels. See
Table 6
.
Recommended output AC-coupling capacitor values are 0.01
μ
F. When the amplitude control pin is HIGH, the output
is configured for high voltage swing mode, which is useful for driving extended length media such as backplanes or
external cables. Setting the output to high swing mode should be done only in controlled environments because the
output voltage exceeds the Serial ATA 1.0 differential mode specifications.
The output buffers have a pre-emphasis circuit that is enabled when HIVx is HIGH. Pre-emphasis accentuates higher
frequency signals in a transmitted data stream. This feature takes into consideration that a signal loses amplitude and
affects the data eye opening as it goes through long trace length runs.
Figure 5
shows the effects of the pre-emphasis
feature. The amplitude increase is between 20% and 30%, and the duration of the amplitude increase is between
150 ps and 300 ps.
Table 6. Output Amplitude and Pre-Emphasis
HIVx
Output Swing Level
Pre-Emphasis
0
Normal
None
1
HIGH
Enabled
Figure 5. Pre-Emphasis Diagram
0 0 1 1 1 1 1 0 1 0
Pre-Emphasis Disabled
0 0 1 1 1 1 1 0 1 0
Pre-Emphasis Enabled
V
OUT
V
OUT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VSC7186 | Quad Transceiver for Gigabit Ethernet |
| VSC7212 | Gigabit Interconnect Chip |
| VSC7212RG | Gigabit Interconnect Chip |
| VSC7216-01 | Multi-Gigabit Interconnect Chip |
| VSC7216-02 | 740; 38000/740 Series; Microcontroller; Bit Size: 8-bit; ROM: 60K; RAM: 2048; ROM Type: Mask ROM; CPU: 740 core; Minimum Instruction Execution Time (ns): 240 (@16.8MHz); Operating Frequency / Supply Voltage: 1.8 to 5.5V; Operating Ambient Temperature (°C): -20 to 85; Package Code: PLQP0064GA-A (64P6U-A) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| VSC7177XYI | 制造商:Maxim Integrated Products 功能描述:ENHANCED 2:1 PORT SELECTOR FOR SERIAL ATA AND SERIAL ATTACHE - Rail/Tube |
| VSC7177YI | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| VSC7182 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:Quad Transceiver for Gigabit Ethernet and Fibre Channel |
| VSC7182TW | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:Quad Transceiver for Gigabit Ethernet and Fibre Channel |
| VSC7186 | 制造商:VITESSE 制造商全稱:Vitesse Semiconductor Corporation 功能描述:Quad Transceiver for Gigabit Ethernet |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。