DS100BR111 Datasheet, PDF (1/39 Pages) Texas Instruments – Ultra Low Power 10.3 Gbps 2-Channel Repeater with Input Equalization and Output De-Emphasis

DS100BR111
May 4, 2012
Ultra Low Power 10.3 Gbps 2-Channel Repeater with Input
Equalization and Output De-Emphasis
General Description
The DS100BR111 is an extremely low power, high perfor-
mance dual-channel repeater for serial links with data rates
up to 10.3 Gbps. The DS100BR111 pinout is configured as
one bidirectional lane (one transmit, one receive channel).
The DS100BR111 inputs feature a powerful 4-stage continu-
ous time linear equalizer (CTLE) to provide a boost of up to
+36 dB at 5 GHz and open an input eye that is completely
closed due to inter-symbol interference (ISI) induced by the
interconnect mediums such as an FR-4 backplane or
AWG-30 cables. The transmitter features a programmable
output de-emphasis driver with up to -12 dB and allows am-
plitude voltage levels to be selected from 700 mVp-p to 1200
mVp-p to suit multiple application scenarios.
When configured as a 10G-KR repeater, the DS100BR111
allows the KR host and the end point to optimize the full link
by adjusting transmit and receive equalizer coefficients using
back-channel communication techniques specified by the
802.3ap standard.
The programmable settings can be applied via pin contol,
SMBus (I2C) protocol or an external EEPROM. When oper-
ating in the EEPROM mode, the configuration information is
automatically loaded on power up – This eliminates the need
for an external microprocessor or software driver.
Part of National's PowerWise family of energy efficient de-
vices, the DS100BR111 consumes just 65 mW/channel (typ-
ical), and allow the option to turn-off unused channels. This
ultra low power consumption eliminates the need for external
heat sinks and simplifies thermal management in active cable
applications.
Features
■ ^{Two channel repeaters for up to 10.3 Gbps}
— DS100BR210 : 2x unidirectional channels
— DS100BR111 : 1x bidirectional lane
■ ^{10G-KR bi-directional interface compatibility}
— Allows for back-channel communication and training
■ ^{Low 65mW/channel (typical) power consumption, with}
option to power down unused channels
■ ^{Advanced signal conditioning features}
— Receive equalization up to +36 dB
— Transmit de-emphasis up to -12 dB
— Transmit VOD control: 700 to 1200 mVp-p
— < 0.3 UI of residual DJ at 10 Gbps
■ ^{Programmable via pin selection, EEPROM or SMBus}
interface
■ ^{Single supply operation selectable: 2.5V or 3.3v}
■ ^{Flow-thru pinout in 4mmx4mm 24-pin leadless LLP}
package
■ ^{>5kV HBM ESD rating}
■ ^{Industrial -40 to 85°C operating temperature range}
Applications
■ ^{High-speed active copper cable modules and FR-4}
backplane in communication systems
■ ^{10GE, 10G-KR, FC, SAS, SATA 3/6 Gbps (with OOB}
detection), InfiniBand, CPRI, RXAUI and many others.
Typical Application
© 2012 Texas Instruments Incorporated 301388 SNLS338D
30138890
www.ti.com