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8.1 I2C Address Selection

The LMK1D1208I can be configured among four different I2C addresses by setting the two-level IDX pins.
Jumpers,

J9

and

J6

, are routed to the IDX0 and IDX1 pins and can be connected to VDD or GND. Use

to determine the appropriate jumper layout to select the I2C address.

Table 8-1. I2C Address Assignment

I2C ADDRESS

IDX1

IDX0

0x68

GND

GND

0x69

GND

VDD

0x6A

VDD

GND

0x6B

VDD

VDD

Figure 8-4. I2C Address Selection Layout

Using I2C

SNAU270 – FEBRUARY 2022

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LMK1D1208IEVM User's Guide

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Copyright © 2022 Texas Instruments Incorporated

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Summary of Contents for LMK1D1208IEVM

Page 1: ...mance of the LMK1D1208I Throughout this document the acronym EVM and the phrases evaluation module and evaluation board are synonymous with the LMK1D1208IEVM The LMK1D1208IEVM is equipped with 50 Ω SMA connectors and impedance controlled 50 Ω microstrip transmission lines for best performance Figure 1 1 LMK1D1208I Evaluation Board www ti com SNAU270 FEBRUARY 2022 Submit Document Feedback LMK1D1208...

Page 2: ... 6 6 2 Single Ended Input 7 7 Output Clock 8 8 Using I2C 9 8 1 I2C Address Selection 11 9 EVM Board Schematic 12 10 Bill of Materials 17 11 REACH Compliance 21 Trademarks All trademarks are the property of their respective owners Table of Contents www ti com 2 LMK1D1208IEVM User s Guide SNAU270 FEBRUARY 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 3: ...e for AC coupled differential clock inputs The I2C capabilities of this device can be evaluated by connecting a micro USB cable to the computer and interfacing with the TICS Pro software This fully assembled and factory tested evaluation board allows complete validation of device functionalities For optimum performance the board is equipped with SMA connectors and well controlled 50 Ω impedance mi...

Page 4: ...ollows the same spelling as the actual labeling on the EVM board By default the EVM can be used with differential inputs and after board modification with single ended inputs Figure 4 1 LMK1D1208IEVM Quick Start Guide Getting Started www ti com 4 LMK1D1208IEVM User s Guide SNAU270 FEBRUARY 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 5: ...urce The decoupling capacitors and ferrite bead isolate the EVM power from the power pins of the device A supply voltage of 1 71 V to 3 465 V can be used for this EVM Figure 5 1 Power Supply Connection Layout www ti com Power Supply Connection SNAU270 FEBRUARY 2022 Submit Document Feedback LMK1D1208IEVM User s Guide 5 Copyright 2022 Texas Instruments Incorporated ...

Page 6: ... These inputs are AC coupled to the device The common mode voltage is provided by the device on chip bias generator VAC_REF pins which can be measured at TP1 and TP2 Figure 6 1 Input Clock Selection Layout 6 1 Differential Input By default the clock inputs are configured as AC coupled LVDS inputs with VAC_REF connection Input Clock www ti com 6 LMK1D1208IEVM User s Guide SNAU270 FEBRUARY 2022 Subm...

Page 7: ...E RESISTOR REPLACE WITH 0 Ω RESISTOR REPLACE WITH 100 Ω RESISTOR 0 9 1 8 LVCMOS IN0_N R5 R6 R12 C3 N A IN0_P C4 N A 0 9 1 8 LVCMOS IN1_N R7 R8 R13 C5 N A IN1_P C6 N A 1 25 2 5 LVCMOS IN0_N R6 R12 R1 C3 C4 R14 R15 IN0_P 1 25 2 5 LVCMOS IN1_N R8 R13 R2 C5 C6 R16 R17 IN1_P 1 65 3 3 LVCMOS IN0_N R6 R12 R1 C3 C4 R14 R15 IN0_P 1 65 3 3 LVCMOS IN1_N R8 R13 R2 C5 C6 R16 R17 IN1_P www ti com Input Clock SN...

Page 8: ... J12 J13 OUT0_P OUT0_N and J14 J15 OUT4_P OUT4_N The LVDS outputs are AC coupled to their respective SMAs Each output pair has the 100 Ω termination on the board already populated Figure 7 1 Output Clock EVM Layout Output Clock www ti com 8 LMK1D1208IEVM User s Guide SNAU270 FEBRUARY 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 9: ...om the TICS Pro toolbar located at the top click Select Device Clock Distribution with Divider LMK1D1208I to access the profile Figure 8 1 Locate the LMK1D1208I Device Profile Using the same toolbar click USB communications Interface USB2ANY to switch from DemoMode to I2C Figure 8 2 Set to I2C Communication www ti com Using I2C SNAU270 FEBRUARY 2022 Submit Document Feedback LMK1D1208IEVM User s Gu...

Page 10: ...he LMK1D1208I beyond logic states allowed in the GUI should be avoided to ensure performance and prevent device misuse Figure 8 3 LMK1D1208I GUI Main Page Using I2C www ti com 10 LMK1D1208IEVM User s Guide SNAU270 FEBRUARY 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 11: ...onnected to VDD or GND Use Table 8 1 to determine the appropriate jumper layout to select the I2C address Table 8 1 I2C Address Assignment I2C ADDRESS IDX1 IDX0 0x68 GND GND 0x69 GND VDD 0x6A VDD GND 0x6B VDD VDD Figure 8 4 I2C Address Selection Layout www ti com Using I2C SNAU270 FEBRUARY 2022 Submit Document Feedback LMK1D1208IEVM User s Guide 11 Copyright 2022 Texas Instruments Incorporated ...

Page 12: ... NC 36 NC 37 OUT6_P 38 OUT6_N 39 VCC 40 ThermalPad 41 U1 CK0 P CK0 N CK0 P CK0 N CK6 N CK5 P CK6 P CK4 N CK5 N CK5 N CK6 N CK5 P CK6 P CK4 P CK4 N CK4 P CK3 N CK3 N CK3 P CK3 P CK2 N CK2 N CK2 P CK2 P CK1 N CK1 N CK1 P CK1 P INP1 INN1 INP1 INN1 CK7 P CK7 N CK7 N CK7 P INP0 INN0 INP0 INN0 VAC_REF1 NC VAC_REF0 NC VAC_REF1 NC VAC_REF0 NC SDA SCL SDA SCL IDX0 IDX1 IDX0 IDX1 VCC GND Figure 9 1 LMK1D120...

Page 13: ...20 VCC 1 00k R21 VCC SCL_BACK SDA1 SCL1 GND 10pF 50V C9 GND 10pF 50V C10 1 5k R9 U2A_3V3 1 5k R4 100nF 16V C2 GND 10V 1uF C1 GND 510 R3 Yellow 1 2 D1 SDA SCL 0 R10 0 R11 U2AGPIO0 U2AGPIO1 TP2 TP1 PBC03SAAN 1 2 3 J6 GND 0 R22 IDX1 IDX1 PBC03SAAN 1 2 3 J9 0 R23 IDX0 IDX0 GND VCC VCC CON SMA EDGE S Default I2C connection through USB2ANY Default 0x6B when floating internal 650 kΩ pullup on IDX pins I2...

Page 14: ... S 0 1µF C23 0 1µF C24 GND 1 2 3 4 5 J24 1 2 3 4 5 J25 0 1µF C25 0 1µF C26 GND 1 2 3 4 5 J26 1 2 3 4 5 J7 0 1µF C27 0 1µF C28 CK1 P CK1 N CK2 P CK4 P CK5 P CK6 P CK2 N CK4 N CK5 N CK6 N CK3 P CK7 P CK7 N CK3 N 0 R26 0 R24 0 R27 0 R29 0 R32 0 R30 0 R36 0 R38 0 R45 0 R47 0 R33 0 R35 0 R39 0 R41 0 R42 0 R44 100 R25 100 R31 100 R37 100 R43 100 R46 100 R40 100 R34 100 R28 GND GND GND GND GND GND GND GN...

Page 15: ...0V C30 10V 0 22uF C31 10V 0 22uF C32 10V 0 22uF C33 10V 0 22uF C34 10V 0 22uF C35 10V 0 22uF C36 10V 0 22uF C37 TP3 TP4 Figure 9 4 LMK1D1208IEVM Schematic Power Supply Sheet www ti com EVM Board Schematic SNAU270 FEBRUARY 2022 Submit Document Feedback LMK1D1208IEVM User s Guide 15 Copyright 2022 Texas Instruments Incorporated ...

Page 16: ...LK ACLK 21 P1 1 TA0 0 22 P1 2 TA0 1 23 P1 3 TA0 2 24 P1 4 TA0 3 25 P1 5 TA0 4 26 P1 6 TA1CLK CBOUT 27 P1 7 TA1 0 28 P2 0 TA1 1 29 P2 1 TA1 2 30 P2 2 TA2CLK SMCLK 31 P2 3 TA2 0 32 P2 4 TA2 1 33 P2 5 TA2 2 34 P2 6 RTCCLK DMAE0 35 P2 7 UCB0STE UCA0CLK 36 P3 0 UCB0SIMO UCB0SDA 37 P3 1 UCB0SOMI UCB0SCL 38 P3 2 UCB0CLK UCA0STE 39 P3 3 UCA0TXD UCA0SIMO 40 P3 4 UCA0RXD UCA0SOMI 41 P3 5 TB0 5 42 P3 6 TB0 6...

Page 17: ...33 C34 C35 C36 C37 CAP CERM 0 22 uF 10 V 10 X7R 0402 0402 GRM155R71A224KE01D MuRata 2 30pF C38 C39 CAP CERM 30 pF 100 V 5 C0G NP0 0603 0603 GRM1885C2A300JA01D MuRata 2 220pF C40 C46 CAP CERM 220 pF 50 V 1 C0G NP0 0603 0603 06035A221FAT2A AVX 1 0 47uF C42 CAP CERM 0 47 uF 10 V 10 X7R 0603 0603 GRM188R71A474KA61D MuRata 1 22uF C47 CAP CERM 22 uF 10 V 20 X5R 0805 0805 LMK212BJ226MG T Taiyo Yuden 2 10...

Page 18: ...22 A SOT 23 SOT 23 BSS138 Fairchild Semiconductor 2 1uF R1 R2 CAP CERM 1 uF 6 3 V 10 X7R 0402 0402 GRM155R70J105KA12D MuRata 1 510 R3 RES 510 5 0 1 W 0603 0603 RC0603JR 07510RL Yageo 2 1 5k R4 R9 RES 1 5 k 5 0 1 W 0603 0603 RC0603JR 071K5L Yageo 4 49 9 R5 R6 R7 R8 RES 49 9 1 0 1 W AEC Q200 Grade 0 0402 0402 ERJ 2RKF49R9X Panasonic 4 0 R10 R11 R12 R13 RES 0 5 0 063 W AEC Q200 Grade 0 0402 0402 CRCW...

Page 19: ...Point Miniature SMT Test Point Miniature SMT 5019 Keystone 1 U1 LMK1D1208IRHA VQFN40 LMK1D1208IRHA Texas Instruments 1 U2 4 Channel ESD Protection Array for High Speed Data Interfaces DRY0006A USON 6 DRY0006A TPD4E004DRYR Texas Instruments 1 U3 25 MHz Mixed Signal Microcontroller with 128 KB Flash 8192 B SRAM and 63 GPIOs 40 to 85 degC 80 pin QFP PN Green RoHS no Sb Br PN0080A MSP430F5529IPN Texas...

Page 20: ...de 0 0402 0402 ERJ 2RKF49R9X Panasonic 0 0 R18 R19 RES 0 5 0 1 W 0603 0603 RC0603JR 070RL Yageo 0 1 00k R20 R21 RES 1 00 k 1 0 1 W 0603 0603 ERJ 3EKF1001V Panasonic 0 0 R64 R65 R66 R67 RES 0 5 0 1 W AEC Q200 Grade 0 0603 0603 CRCW06030000Z0EA Vishay Dale 0 33k R68 RES 33 k 5 0 1 W AEC Q200 Grade 0 0603 0603 CRCW060333K0JNEA Vishay Dale EVM Board Schematic www ti com 20 LMK1D1208IEVM User s Guide S...

Page 21: ...1 These uses from Texas Instruments do not exceed 1 ton per year The SVHC s are Component Manufacturer Component type Component part number SVHC Substance SVHC CAS when available Molex 5 08 Pitch Eurostyle Vertical Fixed Mount PCB Terminal Block 2 Circuits 039544 3002 Lead 7439 92 1 www ti com REACH Compliance SNAU270 FEBRUARY 2022 Submit Document Feedback LMK1D1208IEVM User s Guide 21 Copyright 2...

Page 22: ...other than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control techniques are used to the extent TI deems necessary TI does not test all parameters of each EVM User s claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects...

Page 23: ... These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation...

Page 24: ...y for convenience and should be verified by User 1 Use EVMs in a shielded room or any other test facility as defined in the notification 173 issued by Ministry of Internal Affairs and Communications on March 28 2006 based on Sub section 1 1 of Article 6 of the Ministry s Rule for Enforcement of Radio Law of Japan 2 Use EVMs only after User obtains the license of Test Radio Station as provided in R...

Page 25: ... any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electrical shock hazard User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees affiliates contractors or designees 4 4 User assumes all...

Page 26: ...OR DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthermore no return of EVM s will be accepted if the package has been opened and no return of the EVM s will be accepted if they are damaged or otherwise not in a resalable condition If User feels it has...

Page 27: ...o change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for and you will fully indemn...

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