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Evaluation Board

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Evaluation Board

Figure 1. DS125BR111EVM Evaluation Board

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Setup

The DS125BR111EVM – SMA evaluation kit can be used in three different modes:

1.

Pin Control

(provides access to selected signal integrity settings)

2.

SMBus Mode

(full access to signal integrity and control settings)

3.

EEPROM Mode

(full access to signal integrity and control settings)

The EEPROM mode is a convenient method of programming one or more DS125BRxxx devices on
system power-up when a SMBus master (microcontroller or similar) is unavailable in the design. It is
recommended to use a 1 MHz capable EEPROM. The EEPROM must be 8-kbits or smaller.

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DS125BR111EVM User's Guide SMA Evaluation Kit

SNLU168A – August 2014 – Revised August 2014

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Copyright © 2014, Texas Instruments Incorporated

Summary of Contents for DS125BR111EVM

Page 1: ...DS125BR111EVM User s Guide SMA Evaluation Kit User s Guide Literature Number SNLU168A August 2014 Revised August 2014...

Page 2: ...unch connectors used for the DS125BR111EVM will interface to multiple system connector types via commercially available breakout cables adaptors and boards not included This flexible connectivity enab...

Page 3: ...S Input Tolerant for SMBus Interface Flow Thru Pinout Package 24 Pin QFN 4 mm x 4 mm Industrial 40 to 85 C Operating Temperature Range 2 Applications High Speed Cables and Backplanes in Communication...

Page 4: ...gs 3 EEPROM Mode full access to signal integrity and control settings The EEPROM mode is a convenient method of programming one or more DS125BRxxx devices on system power up when a SMBus master microc...

Page 5: ...e board or board power supply Figure 2 4 Level IO Control on EVM The DS125BR111EVM is quickly setup for use in pin control configuration Jumpers listed below should be installed on the EVM for pin con...

Page 6: ...2 0 000 b Register 0x23 CHA VOD Write VOD setting for bits 4 2 111 b Register 0x06 CRC DIS Write bit 3 1 b send register updates directly to channel without any CRC check 6 3 EEPROM Mode A serial EEPR...

Page 7: ...n to the channel boosting attenuated signals so that they can be more easily recovered at the SAS 3 Rx The outputs are specially designed to be transparent to TX FIR signaling passing this information...

Page 8: ...i com 8 Schematic Figure 4 DS125BR111EVM Schematic 8 DS125BR111EVM User s Guide SMA Evaluation Kit SNLU168A August 2014 Revised August 2014 Submit Documentation Feedback Copyright 2014 Texas Instrumen...

Page 9: ...m Schematic Figure 5 DS125BR111EVM Schematic 9 SNLU168A August 2014 Revised August 2014 DS125BR111EVM User s Guide SMA Evaluation Kit Submit Documentation Feedback Copyright 2014 Texas Instruments Inc...

Page 10: ...16 R17 R18 7 27 R21 R22 R23 R24 P1 0KJCT ND ERJ 2GEJ102X RES 1 0K 1 10W 5 0402 SMD R26 R27 R28 R30 R32 R33 R34 R35 R37 R40 R43 R7 R8 R9 8 9 R10 R11 R12 P20 0KLCT ND ERJ 2RKF2002X RES 20 0K 1 10W 1 040...

Page 11: ...2014 to A Revision Page Changed EVM Photo 4 NOTE Page numbers for previous revisions may differ from page numbers in the current version 11 SNLU168A August 2014 Revised August 2014 Revision History Su...

Page 12: ...dling and use of EVMs and if applicable compliance in all respects with such laws and regulations 10 User has sole responsibility to ensure the safety of any activities to be conducted by it and its e...

Page 13: ...his equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Opera...

Page 14: ...age et ayant un gain admissible maximal et l imp dance requise pour chaque type d antenne Les types d antenne non inclus dans cette liste ou dont le gain est sup rieur au gain maximal indiqu sont stri...

Page 15: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

Page 16: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments DS125BR111EVM...

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