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