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DS125BR401A OUTB INA OUTA INB TX RX SAS-3 Controller 0 TX RX SAS-3 Controller 1 Channel Loss ~ Equal Channel Loss ~ Equal -10 dB Max -24 dB Max Product Folder Sample & Buy Technical Documents Tools & Software Support & Community DS125BR401A SNLS466A –SEPTEMBER 2013–REVISED MARCH 2014 D S 1 2 5 B R 4 0 1 A L o w -P o w er 1 2 G b p s 4 -L an e L in ear R ep e a te r W it h E q u a liz at io n 1 Featur es 3 Description The DS125BR401A is an extremely low-power high- Low 65-mW/Cha nnel ( Typ) Power Consu mptio n, perfo rmance repeat er/re drive r design ed to suppor t With Option to Power Down Unused Channels four lanes carrying hi gh speed interface up to 12 Linear Equaliz ation allows for Link Trainin g in Gbp s. The B-Side receiver' s continuous time linear PCIe and SAS equalizers (CTLE) provide high frequency boost of up to +24 dB at 6 GHz (12 Gbps) and are capable of  Suppor ts Out- of-Ba nd (OOB) Signali ng opening an input eye that is completely closed due to Advanc ed Signal Condi tionin g B-Side I/O inter symbol in terference (ISI) induced by  Receive CTLE up to 24 dB at 6 GHz interc onnect medium such as bac kpla ne tra ces or  Transmit (Tx) DE > 10 dB  twi na xi al co pp er c ab le s. Th e pr og ra mma bl e equalization allows maximum flexibility in the physical  Tx Output Voltage: 700 mV to 1400 mV placement wit hin the int erconnect channel. The A- Advanc ed Signal Condi tionin g A-Side I/O Side channel has a 10 dB linear equalizer and linear  Receive CTLE up to 10 dB at 6 GHz  output driver.  Linear output drive The A- Si de channel has a sett able 3- 10 dB lin ear   Output voltage range over 1200mV  equaliz er coupled to a lin ear output dr ive r. When operating in SAS-3 and PCIe Gen-3 applications the Programmable via Terminal Selection, EEPROM, DS125BR401A preserves transmit signal or SMBus Interface charac ter istics allo win g the host controller and the Single Supply Volt age: 2. 5 V or 3. 3 V end point to negotiate transmit equalizer coefficients.  40°C to 85°C Operating Temperature Range Thi s tra nsparency to the link tra inin g protoc ol aide s 4 kV HBM ESD Rati ng  system level interoperability and minimum latency. Flow-Thru Layou t in 10mmx 5.5mm 54-Te rminal The programmable settings can be applied easily via Leadless WQFN Package  Terminals, softw are (SMBu s or I2C) , or loaded via an external EEPROM. In EEPROM mode, the confi gurat ion infor matio n is automatical ly loaded on 2 Applica tions power up, which eliminates the need for an external S AS / SATA microprocessor or software driver. PCI Express Device Information Other Propr ietary Inte rface s up to 12 Gbps ORDER NUMB ER PAC K AGE B ODY SIZE DS 12 5B R4 01 AN JY WQF N (48 ) 10 mm x 5, 5 mm SAS-3 Ap plication  An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.

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