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DS100KR800 Datasheet Preview

DS100KR800 Datasheet

8-Channel Repeater

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DS100KR800
SNLS340E – NOVEMBER 2011 – REVISED NOVEMBER 2015
DS100KR800 8-Channel Repeater for Data-Rates Up to 10.3 Gbps
1 Features
1 Comprehensive Product Family:
– DS125BR820: 8-Channel Repeater
– DS125BR401A: 4x Lane Repeater
– DS125BR111: 1x Lane Repeater
• Transparent Management of 10G-KR (802.3ap)
Link Training Protocol
• 65 mW/Channel (Typical) Power Consumption
• Advanced Signal Conditioning Features
– Receive Equalization up to 36 dB at 5 GHz
– Transmit De-emphasis up to –12 dB
– Transmit Voltage Control: 700 mV to 1300 mV
• Programmable Through Pin Selection, EEPROM
or SMBus Interface
• Selectable 2.5-V or 3.3-V Supply Voltage
• –40°C to +85°C Operating Temperature Range
• Flow-thru Pinout in Leadless WQFN Package
2 Applications
• Front-Port 40G-CR4/SR4/LR4 Link Extensions
• Backplane 40G-KR4 Link Extensions
Simplified Functional Block Diagram
DS100KR800
INB_0+
INB_0-
...
...
INB_3+
INB_3-
OUTB_0+
OUTB_0-
...
...
...
OUTB_3+
OUTB_3-
...
Address straps
(pull-up to VIN or
pull-down to GND)(1)
SMBus Slave Mode(1)
SMBus Slave Mode(1)
3.3 V(3)
10 F 1 F
0.1 F (x5)
INA_0+
INA_0-
...
...
INA_3+
INA_3-
AD0
AD1
AD2
AD3
READ_EN / SD_TH
ALL_DONE
INPUT_EN
VIN (3.3 V)
VDD_SEL
VDD (2.5 V)
OUTA_0+
OUTA_0-
...
OUTA_3+
OUTA_3-
RESERVED
MODE
ENSMB
SDA(2)
SCL(2)
RESET
GND (DAP)
...
VIN
10G-KR Mode(4)
VIN
SMBus Slave Mode(1)
To SMBus/I2C
Host Controller
3 Description
The DS100KR800 device is a high performance
repeater designed to support 8-channel
(unidirectional), 10G-KR, and other high-speed
interface serial protocols up to 10.3 Gbps. The
continuous time linear equalizer (CTLE) of the
receiver provides a boost of up to 36 dB at 5 GHz
(10.3125 Gbps) in each of its eight channels. This
equalizer is capable of opening an input eye that is
completely closed due to inter symbol interference
(ISI) induced by interconnect medium such as long
backplanes or cables. The transmitter provides a de-
emphasis boost of up to –12 dB and output voltage
amplitude control from 700 mV to 1300 mV.
When operating in 10G-KR mode, the DS100KR800
transparently allows the host controller and the end
point to optimize the full link and negotiate transmit
equalizer coefficients as defined in the 802.3ap
standard. This seamless management of the link
training protocol ensures system level interoperability
with minimum latency.
The programmable settings can be applied through
pin settings, SMBus (I2C) protocol or an external
EEPROM. When operating in the EEPROM mode,
the configuration information is automatically loaded
on power-up. This eliminates the need for an external
microprocessor or software driver.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DS100KR800
WQFN (54)
10.00 mm × 5.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Block Diagram
ASIC
FPGA
2x40G
DS100KR800
DS100KR800
2x40G
Stacked QSFP+
40 GbE Copper CR4 or
40 GbE SR4/LR4 Optical
8x10G
DS100KR800
DS100KR800
8x10G
Stacked QSFP+
1xQSFP+ to 4xSFP+
Breakout
(1) Schematic shows connection for SMBus Slave Mode (ENSMB=1 kW to VIN)
For SMBus Master Mode or Pin Mode configuration, the connections are different.
(2) SMBus signals need to be pulled up elsewhere in the system.
(3) Schematic requires different connections for 2.5 V mode.
(4) Schematic requires pull-down resistor for 10G Mode.
1
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.




etcTI

DS100KR800 Datasheet Preview

DS100KR800 Datasheet

8-Channel Repeater

No Preview Available !

DS100KR800
SNLS340E – NOVEMBER 2011 – REVISED NOVEMBER 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 6
6.1 Absolute Maximum Ratings ...................................... 6
6.2 ESD Ratings.............................................................. 6
6.3 Recommended Operating Conditions....................... 6
6.4 Thermal Information .................................................. 6
6.5 Electrical Characteristics........................................... 7
6.6 Electrical Characteristics – Serial Management Bus
Interface .................................................................... 8
6.7 Timing Requirements – Serial Bus Interface Timing
Specifications ............................................................. 9
6.8 Typical Characteristics ............................................ 11
7 Detailed Description ............................................ 12
7.1 Overview ................................................................. 12
7.2 Functional Block Diagram ....................................... 12
7.3 Feature Description................................................. 13
7.4 Device Functional Modes........................................ 13
7.5 Programming........................................................... 16
7.6 Register Maps ......................................................... 17
8 Application and Implementation ........................ 39
8.1 Application Information............................................ 39
8.2 Typical Application ................................................. 39
9 Power Supply Recommendations...................... 41
9.1 3.3-V or 2.5-V Supply Mode Operation................ 41
9.2 Power Supply Bypassing ........................................ 42
10 Layout................................................................... 42
10.1 Layout Guidelines ................................................. 42
10.2 Layout Example .................................................... 43
11 Device and Documentation Support ................. 44
11.1 Documentation Support ........................................ 44
11.2 Community Resources.......................................... 44
11.3 Trademarks ........................................................... 44
11.4 Electrostatic Discharge Caution ............................ 44
11.5 Glossary ................................................................ 44
12 Mechanical, Packaging, and Orderable
Information ........................................................... 44
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision D (April 2013) to Revision E
Page
• Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional
Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device
and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1
• Changed Signal detect pattern at 8 Gbps .............................................................................................................................. 7
Changes from Revision C (April 2013) to Revision D
Page
• Changed layout of National Data Sheet to TI format ............................................................................................................. 1
2
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Copyright © 2011–2015, Texas Instruments Incorporated
Product Folder Links: DS100KR800


Part Number DS100KR800
Description 8-Channel Repeater
Maker etcTI
Total Page 3 Pages
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