DS125BR111 Series

12.5-Gbps 2-channel redrivers with input equalization

Catalog

12.5-Gbps 2-channel redrivers with input equalization

Part	Package / Case	Voltage - Supply [Max]	Voltage - Supply [Min]	Supplier Device Package	Data Rate (Max)	Number of Channels [custom]	Applications	Operating Temperature [Max]	Operating Temperature [Min]	Signal Conditioning	Mounting Type	Delay Time	Current - Supply	Type	Output	Input
Texas Instruments DS125BR111RTWR	24-WFQFN Exposed Pad	3.3 V	2.5 V	24-WQFN (4x4)	12.5 Gbps	2	PCIe SAS SATA	85 °C	-40 °C	Input Equalization Output De-Emphasis	Surface Mount	70 ps	40 mA	Buffer ReDriver	CML	CML

Catalog

12.5-Gbps 2-channel redrivers with input equalization

Key Features

• Low 65 mW/Channel (typ) Power ConsumptionSupports Link TrainingSupports Out-of-Band (OOB) SignalingAdvanced Signal Conditioning I/OReceive CTLE up to 10 dB at 6 GHzLinear Output DriverOutput Voltage Range over 1200 mVProgrammable via Pin Selection, EEPROM, orSMBus InterfaceSingle Supply Voltage: 2.5 V or 3.3 V−40°C to 85°C Operating Temperature RangeFlow-thru Pinout in 4 mm × 4 mm 24-pin LeadlessWQFN PackageLow 65 mW/Channel (typ) Power ConsumptionSupports Link TrainingSupports Out-of-Band (OOB) SignalingAdvanced Signal Conditioning I/OReceive CTLE up to 10 dB at 6 GHzLinear Output DriverOutput Voltage Range over 1200 mVProgrammable via Pin Selection, EEPROM, orSMBus InterfaceSingle Supply Voltage: 2.5 V or 3.3 V−40°C to 85°C Operating Temperature RangeFlow-thru Pinout in 4 mm × 4 mm 24-pin LeadlessWQFN Package

Description

The DS125BR111 is an extremely low power high performance repeater/redriver designed to support 1-lane carrying high speed interface up to 12.5 Gbps. The receiver's continuous time linear equalizer (CTLE) provides a boost of 3-10 dB at 6 GHz in each channel. When operating in SAS-3 or PCIe Gen-3 applications, the DS125BR111 preserves transmit signal characteristics allowing the host controller and the end point to negotiate transmit equalizer coefficients. Transparency to the link training protocol maximizes the flexibility of the physical placement of the device within the interconnect and improves overall channel performance. The programmable settings can be applied easily via pins, software (SMBus or I2C), or loaded via an external EEPROM. In EEPROM mode, the configuration information is automatically loaded on power up, which eliminates the need for an external microprocessor or software driver. The DS125BR111 is an extremely low power high performance repeater/redriver designed to support 1-lane carrying high speed interface up to 12.5 Gbps. The receiver's continuous time linear equalizer (CTLE) provides a boost of 3-10 dB at 6 GHz in each channel. When operating in SAS-3 or PCIe Gen-3 applications, the DS125BR111 preserves transmit signal characteristics allowing the host controller and the end point to negotiate transmit equalizer coefficients. Transparency to the link training protocol maximizes the flexibility of the physical placement of the device within the interconnect and improves overall channel performance. The programmable settings can be applied easily via pins, software (SMBus or I2C), or loaded via an external EEPROM. In EEPROM mode, the configuration information is automatically loaded on power up, which eliminates the need for an external microprocessor or software driver.