AD8143-EVALZ/AD8145-EVALZ User Guide UG-862 One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com Evaluation Board for the AD8143/AD8145 High Speed, Triple Differential Receivers with Comparators FEATURES The excellent common-mode rejection of both the AD8143 and AD8145 allows the use of low cost, unshielded, twisted pair cables in noisy environments. Full featured evaluation board for the AD8143/AD8145 Uses Cat-5 or SMA as inputs and VGA or SMA as outputs ±5 V operation EVALUATION KIT CONTENTS AD8143-EVALZ/AD8145-EVALZ evaluation board Instruction guide for user guide download EQUIPMENT NEEDED Signal source or video pattern generator and signal analyzer Power supply: ±5 V/1 A Cat-5 cable or SMA to SMA cable for inputs Male to male VGA cable or SMA to SMA cable for outputs Display or monitor GENERAL DESCRIPTION The AD8143 and AD8145 are triple, low cost, differential to single-ended receivers, specifically designed for receiving red, green, and blue (RGB) signals over a twisted pair cable or differential printed circuit board (PCB) traces. These products can also receive any type of analog signal or high speed data transmission. Two auxiliary comparators with hysteresis are provided on both products to decode video sync signals encoded on the received common-mode voltages. These comparators receive digital signals or can be used as general-purpose comparators. The AD8143 and AD8145 can be used in conjunction with the AD8133 and AD8134 triple differential drivers to provide a complete, low cost solution for RGB signals over Category-5 (Cat-5) UTP cable applications, including keyboards, videos, and mouses (KVM). PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. The AD8143 has a wide power supply range from single +5 V supply to ±12 V, which allows a wide common-mode range. The wide common-mode input range of the AD8143 maintains signal integrity in systems where the ground potential is a few volts different between the driver and receiver ends without using isolation transformers. The AD8143 is stable at a gain of 1. Closedloop gain is easily set using external resistors. The AD8145 can be configured for a differential to single-ended gain of 1 or 2 by connecting the GAIN_x pin of each channel to the respective output (gain = 1), or by connecting it to a reference voltage (gain = 2), which is normally grounded. On the AD8145, a REF_x input is provided on each channel that allows designers to level shift the output signals. Both the AD8143 and AD8145 are available in a 5 mm × 5 mm, 32-lead LFCSP. The AD8143 is rated to work over the extended industrial temperature range of −40°C to +85°C, while the AD8145 can work over the extended industrial temperature range of −40°C to +105°C. Only the AD8145 has an automotive grade version that is qualified for use in automotive applications. This user guide provides the supporting documents for the evaluation of the AD8143/AD8145. Consult the AD8143 and AD8145 data sheets, which provide additional information, when working with the evaluation board. Rev. 0 | Page 1 of 9 UG-862 AD8143-EVALZ/AD8145-EVALZ User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Power Supply..................................................................................4 Evaluation Kit Contents ................................................................... 1 Analog Inputs.................................................................................4 Equipment Needed ........................................................................... 1 Analog Output ...............................................................................4 General Description ......................................................................... 1 DIS/PD Logic Input ......................................................................4 Revision History ............................................................................... 2 Quick Start Guide..........................................................................4 Evaluation Board Photograph and Block Diagram...................... 3 Evaluation Board Schematics and Artwork ...................................6 Evaluation Board Hardware ............................................................ 4 Bill of Materials ..................................................................................8 Introduction .................................................................................. 4 REVISION HISTORY 9/15—Revision 0: Initial Version Rev. 0 | Page 2 of 9 AD8143-EVALZ/AD8145-EVALZ User Guide UG-862 – 3 IN+_G 4 + – R R GND 26 25 – GAIN_G C 27 R 24 GND 23 OUT_B 22 OUT_G 21 OUT_R 20 VS+ 19 COMPB_IN+ 18 COMPB_IN– 17 GND + 2 28 C R + REF_G 29 VS– 30 DIS/PD 31 1 REF_B IN+_B IN–_B GND 32 GND GAIN_B EVALUATION BOARD PHOTOGRAPH AND BLOCK DIAGRAM + – IN–_G 5 REF_R 6 GAIN_R 7 GND 8 AD8145 C B A R 11 12 13 14 15 16 IN–_R COMPA_IN+ COMPA_IN– COMPA_OUT COMPB_OUT GND 13363-001 10 GND – 9 IN+_R + R + – Figure 1. Rev. 0 | Page 3 of 9 UG-862 AD8143-EVALZ/AD8145-EVALZ User Guide EVALUATION BOARD HARDWARE INTRODUCTION QUICK START GUIDE The AD8143-EVALZ/AD8145-EVALZ evaluation board allows the user to evaluate the AD8143/AD8145 using both SMA and UTP cables. Figure 2 shows the typical bench setup used to evaluate the triple differential receivers with comparators. To begin, take the following steps: POWER SUPPLY This evaluation board requires a typical ±12 V power supply for testing the AD8143 and a ±5 V power supply for testing the AD8145. Both the AD8143 and AD8145 need a minimum power supply of 4.5 V. Connect the supplies as shown in Figure 2. ANALOG INPUTS Drive the inputs, either the SMA inputs (INPB, INNB, INPG, INNG, INPR, and INNR) or the Cat-5 UTP input (P1), with a waveform generator, a video pattern generator, or a signal source from a video driver. ANALOG OUTPUT For RLOAD = 150 Ω, either the SMA outputs (OUTB, OUTG, and OUTR) or the VGA output (J1) of this evaluation board produce a voltage of approximately ±3.5 V for both the AD8143 and the AD8145. Check the waveform signal from this output using a signal analyzer, such as an oscilloscope or a display/monitor. DIS/PD LOGIC INPUT Pin DIS/PD, represented by SW1, is a logic input used to reduce power consumption when either the AD8143 or the AD8145 is not in use and does not place the output in a high-Z state when asserted. Enable the AD8143 and AD8145 by pulling SW1 to the positive supply. 1. 2. Remove the AD8143/AD8145 from the box. Connect +5 V to VCC, −5 V to VEE, and GND to the center pin of P2. Using the AD8147/AD8148 video driver as input, take the following steps: 1. 2. 3. 4. 5. Connect +5 V to VS+, −5 V to VS−, and GND to the center pin of P3 of the AD8147/AD8148 evaluation board. Connect a video signal from a monitor/laptop or video pattern generator via the VGA port (P1 of the AD8147/ AD8148 evaluation board). Connect a Cat-5 UTP cable between P2 of the AD8147/ AD8148 evaluation board and P1 of the AD8143/AD8145 evaluation board. Connect a VGA cable between the J1 connector of the AD8143/AD8145 evaluation board and the output monitor to see the video output signal. Turn on the power supply with ±5 V. The typical current of VCC/VS+ is 143 mA, and VEE/VS− is −122 mA. Using a different analog signal as an input signal, take the following steps: 1. 2. 3. 4. Rev. 0 | Page 4 of 9 Connect a differential input signal that is typically ±2.5 V in INPB and INNB, INPG and INNG, or INPR and INNR through the SMA to SMA connector between a signal generator or video pattern generator and the differential inputs. Connect an oscilloscope or a display/monitor to J1 through the VGA connector. Turn on the power supply with ±5 V. Turn on the input source. J1 must produce the signal from the inputs depending on the configured gain. AD8143-EVALZ/AD8145-EVALZ User Guide UG-862 DC POWER SUPPLY OSCILLOSCOPE VIDEO DRIVER (AD8147/AD8148) ANALOG INPUTS DISPLAY/MONITOR Figure 2. Typical AD8143-EVALZ/AD8145-EVALZ Evaluation Board Setup Rev. 0 | Page 5 of 9 13363-002 ANALOG OUTPUTS WAVEFORM/SIGNAL GENERATOR P1 R_CM AGND G_CM R47 GND1 RB_CM_SUM RJ45 8 7 6 5 4 3 2 GND2 3299W GND4 VEE GND3 AGND 1K R48 INMG R4 R3 VCC R14 INMG INPG INPG R46 R45 R44 INMR INPR R17 C4 1 2 3 P2 P2 P2 INMR INPR R26 R5 R2 0.01UF INPB INMG INPG INMB R24 VEE VCC AGND AGND R25 3299W VEE R19 VCC B_CM R27 C6 AGND AGND R21 R12 8 7 6 5 4 3 2 1 AGND FBG VCC VEE C9 R40 AGND INPB Z1 AD8143 9 10 11 12 13 14 15 16 AGND GND FBR REFR INMG INPG R18 INPB 32 31 30 29 28 27 26 25 R28 RB_CM_SUM REFG GND R49 32CSP5X5 INMB R32 R16 AGND R35 INMB GND GND 1 INPB INMR INPR 1K INMB INPR AGND C15 R9 R34 R13 FBB CINPA CINPA R43 R15 REFB CINMA CINMA INMR DISPD COUTA R42 VEE COUTB AGND R57 B_CM R55 R54 GND GND R58 R8 R41 GND AGND VCC GND CINMB CINPB VCC OUTR OUTG OUTB R56 VEE 24 17 18 19 20 21 22 23 R33 R_CM AGND 47PF C0402 C10 AGND C13 VCC AGND 47PF C0402 VEE VCC R59 R60 VCC R51 R20 R1 R22 R61 475 R11 R50 VEE R62 Rev. 0 | Page 6 of 9 R53 Figure 3. AD8143-EVALZ/AD8145-EVALZ Evaluation Board Schematic C14 H_SYNC V_SYNC AGND G_CM CINMB R10 H_SYNC R39 C11 VEE J1 10 R64 NL27WZ16 OUT2 VCC 4 AGND 0.1UF C7 J1 5 J1 OUT1 J1 J1 J1 9 J1 J1 8 12 J1 7 11 J1 6 J1 J1 4 5 J1 J1 J1 1 2 3 15 Z2 3x trace width. AGND MAZ80470 CR1 1K R52 3x trace width. 14 R63 C8 AGND 0.1UF VCC NET NAMES Gap between pairs should be: 23,24 13,14 9,10 7,8 3,4 PINS Spacing between traces should be: in length: following pairs should be matched Traces connecting to pins in the 50 Ohms (12 mil trace nominal) Impedance Controlled traces: BOT = Signal INT2 = AGND Plane V_SYNC_OUT 6 TOP = Signal INT1 = AGND Plane 13 AGND NOTES Board Construction (0.062" thick): H_SYNC_OUT 0.1UF 8143 CUSTOMER EVAL BD 32CSP5X5 AGND AGND 3299W VCC VEE R23 VCC 0.1UF C3 C5 VCC 1 IN1 2 GND 3 IN2 10UF C2 1K R37 1K R36 AGND VEE .001UF R29 R6 R7 AGND V_SYNC C1 10UF RB_CM_SUM CINPB OUTR OUTG OUTB VEE 0.001UF C12 SW1 AGND R38 R31 30.1 30.1 R30 H_SYNC_OUT V_SYNC_OUT 13363-003 UG-862 AD8143-EVALZ/AD8145-EVALZ User Guide EVALUATION BOARD SCHEMATICS AND ARTWORK UG-862 13363-004 AD8143-EVALZ/AD8145-EVALZ User Guide 13363-005 Figure 4. AD8143-EVALZ/AD8145-EVALZ Evaluation Board, Front View Figure 5. AD8143-EVALZ/AD8145-EVALZ Evaluation Board, Rear View Rev. 0 | Page 7 of 9 UG-862 AD8143-EVALZ/AD8145-EVALZ User Guide BILL OF MATERIALS Table 1. AD8143 Bill of Materials Item 1 Qty 19 2 3 4 5 6 7 8 9 10 11 12 3 5 2 6 1 2 4 3 2 1 13 13 14 15 16 17 18 19 20 21 22 4 1 1 1 1 1 1 4 1 17 23 24 25 26 27 3 4 1 2 1 Reference Designator R6, R7, R18, R24, R29, R32 to R35, R39, R41 to R46, R51, R57, R58 R1, R20, R22 R36, R37, R48, R49, R52 R30, R31 R2 to R5, R12, R13 R50 C1, C2 C3, C5, C7, C8 C4, C11, C12 C10, C13 Z1 CINMA, CINMB, CINPA, CINPB, INMB, INMG, INMR, INPB, INPG, INPR, OUTB, OUTG, OUTR GND1 to GND4 J1 P1 P2 SW1 VCC VEE C6, C9, C14, C15 CR1 R8 to R11, R21, R25 to R28, R38, R47, R53, R55, R56, R59 to R62 R14, R19, R23 R15 to R17, R40 R54 R63, R64 Z2 Description 0, R0402 Manufacturer Multicomp Part Number 0402WGF0000TCE 75, R0402 1k, R0402 30.1, R0402 49.9, R0402 475, R0402 10 μF, 3528 0.1 μF, C0402 0.01 μF, C0402 47 pF, C0402 AD8143, 32CSP5X5 SMACONRAA1, SMASMT Panasonic Panasonic Panasonic Panasonic Panasonic AVX Murata TDK Murata Analog Devices, Inc. Rosenberger ERJ-2RKF75R0X ERJ-2RKF1001X ERJ-2RKF30R1X ERJ-2RKF49R9X ERJ-2RKF4750X TAJB106K020RNJ GRM155R71C104KA88D C1005X8R1E103K GCM1555C1H470JZ13D AD8143ACPZ 32K243-40ML5 Test point, TP1 CON15_FEM, CONN_A012 RJ45 3-pin SIP3 Test point, TP1 Test point, TP1 Variable, C0402 MAZ80470, SC76 Variable, R0402 Keystone Electronics Corp. TE Connectivity TE Connectivity Molex Molex Keystone Electronics Corp. Keystone Electronics Corp. Do not insert 5006 1-1734530-1 RJ45-8X 22-11-2032 22-03-2031 5000 5004 Do not insert Do not insert Do not insert Variable, 3299W 499, R0402 R0402 0, R0402 NL27WZ16, SOT23_6 Do not insert Panasonic Do not insert Multicomp ON Semiconductor Do not insert ERJ-2RKF4990X Do not insert 0402WGF0000TCE NL27WZ16DFT2G Rev. 0 | Page 8 of 9 AD8143-EVALZ/AD8145-EVALZ User Guide UG-862 Table 2. AD8145 Bill of Materials Item 1 Qty 22 2 3 4 5 6 7 8 9 10 11 12 3 4 2 6 1 2 2 2 2 1 13 13 14 15 16 17 18 19 4 1 1 1 1 1 1 Reference Designator R6, R7, R15, R18, R24, R29 to R35, R39, R41 to R46, R63, R64, R51 R1, R20, R22 R36, R37, R48,R49 R57, R58 R2 to R5, R12, R13 R50 C1, C2 C3, C5 C11, C12 C10, C13 Z1 CINMA, CINMB, CINPA, CINPB, INMB, INMG, INMR, INPB, INPG, INPR, OUTB, OUTG, OUTR GND1 to GND4 J1 P1 P2 SW1 VCC VEE Description 0, R0402 Manufacturer Multicomp Part Number 0402WGF0000TCE 75, R0402 1k, R0402 30.1, R0402 49.9, R0402 475, R0402 10 μF, 3528 0.1 μF, C0402 0.01 μF, C0402 47 pF, C0402 AD8145, 32CSP5X5 SMACONRAA1, SMASMT Panasonic Panasonic Panasonic Panasonic Panasonic AVX Murata TDK Murata Analog Devices Rosenberger ERJ-2RKF75R0X ERJ-2RKF1001X ERJ-2RKF30R1X ERJ-2RKF49R9X ERJ-2RKF4750X TAJB106K020RNJ GRM155R71C104KA88D C1005X8R1E103K GCM1555C1H470JZ13D AD8145ACPZ 32K243-40ML5 Test point, TP1 CON15_FEM, CONN_A012 RJ45 3-pin SIP3 Test point, TP1 Test point, TP1 Keystone Electronics Corp. TE Connectivity TE Connectivity Molex Molex Keystone Electronics Corp. Keystone Electronics Corp. 5006 1-1734530-1 RJ45-8X 22-11-2032 22-03-2031 5000 5004 ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality. Legal Terms and Conditions By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc. (“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term “Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board. Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed. ©2015 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG13363-0-9/15(0) Rev. 0 | Page 9 of 9