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position:LONTIUM > PRODUCTS > Others > High Speed Repeater/Retimer > VIEWHigh Speed Repeater/Retimer
LT1258
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1. Description

The Lontium LT1258 is a quad 2:2 cross-point switch or splitter with signal conditioning suitable for high-speed bus applications with data rates up to 12.5 Gbps. The continuous time linear equalizer (CTLE) of the receiver provides adjustable boost to compensate up to 25 dB insertion-loss at 6.25 GHz. The transmitter features a programmable amplitude voltage levels to be selectable up to 1200 mVpp and de-emphasis up to 8 dB.
In order to save power consumption, the LT1258 can work well from 1.8V to 2.5V power supply in external LDO mode.
The LT1258 can be configured to support PCIe, CAUI-10, and SAS/SATA, 10G-KR, CPRI or other signaling protocols.
The LT1258 is fabricated in advanced CMOS process and implemented in 10mm x 5.5mm QFN54 package.


2. Features

• Support 1Gbps to 12.5Gbps Data Rate
• Input signal detect and output sink detect support
• 2x2 Analog cross-point Switch
• Data lane polarity swappable
• Up to 4 forward and 4 backward lanes support
• Programmable de-emphasis up to 8dB
• Up to 1.2V output Swing
• Programmable Through Pin Selection, EEPROM or SMBus Interface
• Selectable 2.5-V or 3.3-V supply voltage

3. Application

• 10G-KR
• CAUI-10
• SAS/SATA 
• CPRI
• PCle 
• SGMII

 

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