Evaluation Board User Guide
UG-861
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 AD8147/AD8148 Triple Differential Drivers for
Wideband Video
These drivers can be used with the AD8145 triple, differential
to single-ended receiver, and the AD8117 crosspoint switch, to
produce a video distribution system capable of supporting UXGA
or 1080p signals.
FEATURES
Full featured evaluation board for the AD8147/AD8148
Uses VGA as input and Cat-5 as output
Single 5 V or dual ±2.5 V/±5 V operation
Manufactured on the Analog Devices, Inc., second generation
XFCB bipolar process, the drivers have large signal bandwidths
of 700 MHz and fast slew rates. They have an internal commonmode feedback feature that provides output amplitude and phase
matching that is balanced to −60 dB at 50 MHz, suppressing even
order harmonics and minimizing radiated electromagnetic
interference (EMI).
EVALUATION KIT CONTENTS
AD8147-EVALZ/AD8148-EVALZ evaluation board
Instruction guide for user guide download
EQUIPMENT NEEDED
Signal source or video pattern generator and signal analyzer
Power supply options: +5 V/1 A, ±2.5 V/1 A, or ±5 V/1 A
Female to male VGA cable for input
Cat-5 cable for output
Both the AD8147 and AD8148 encode vertical and horizontal sync
signals on the common-mode voltages of the outputs. All outputs
can be independently set to low voltage states to be used with series
diodes for line isolation, allowing easy, differential multiplexing
over the same twisted pair cable.
GENERAL DESCRIPTION
The AD8147/AD8148 are high speed triple, differential or
single-ended input to differential output drivers. The AD8147
has a fixed gain of 2, and the AD8148 has a fixed gain of 4.
The AD8147 and AD8148 devices are designed for the highest
resolution component video signals but can be used for any type
of analog signals or high speed data transmission over either a
Category 5 UTP (Cat-5) cable or differential printed circuit board
(PCB) transmission lines.
The AD8147/AD8148 are available in a 24-lead LFCSP and
operate over a temperature range of −40°C to +85°C.
This user guide provides all supporting documents for evaluating
the AD8147/AD8148. Consult the AD8147 and AD8148 data
sheets, which provide additional information, when working with
the evaluation board.
4
VS–
5
–OUT R
6
Figure 1.
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 6
–IN G
+IN G
VS– (SYNC)
VSYNC
HSYNC
AD8147/
AD8148
×2
B
A
C
7
8
9
10
11
12
18
SYNC LEVEL
17
VS+ (SYNC)
16
–IN B
15
+IN B
14
VS–
13
–OUT B
13362-001
+IN R
19
+OUT B
3
20
VS+
–IN R
21
–OUT G
2
22
+OUT G
VS–
23
VS+
1
24
+OUT R
OPD
VS+
EVALUATION BOARD PHOTOGRAPH AND BLOCK DIAGRAM
UG-861
Evaluation Board User Guide
TABLE OF CONTENTS
Features .............................................................................................. 1 Power Supply..................................................................................3 Evaluation Kit Contents ................................................................... 1 Analog Inputs ................................................................................3 Equipment Needed ........................................................................... 1 Analog Output ...............................................................................3 General Description ......................................................................... 1 Output Pull-Down (OPD) Logic Input ......................................3 Evaluation Board Photograph and Block Diagram...................... 1 Quick Start Guide ..........................................................................3 Revision History ............................................................................... 2 Evaluation Board Schematics and Artwork ...................................4 Evaluation Board Hardware ............................................................ 3 Bill of Materials ..................................................................................6 Introduction .................................................................................. 3 REVISION HISTORY
9/15—Revision 0: Initial Version
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Evaluation Board User Guide
UG-861
EVALUATION BOARD HARDWARE
INTRODUCTION
QUICK START GUIDE
The AD8147-EVALZ/AD8148-EVALZ evaluation board allows
the user to easily evaluate the AD8147/AD8148 in both single
and dual supply operation and through a Cat-5 UTP cable.
To begin, take the following steps:
Figure 2 shows the typical bench setup used to evaluate the
triple differential drivers.
1.
2.
3.
POWER SUPPLY
This evaluation board requires either a single +5 V or a dual
±2.5 V/±5 V power supply. Connectors J1 and J2 in the evaluation
board must be set according to the supply used. If using a ±5 V
power supply, follow the connections shown in Figure 2.
ANALOG INPUTS
Drive the input, P1, with a video pattern generator, a video signal,
or any signal source that can provide an input voltage of ±5 V
for a ±5 V supply and 0 V to 5 V for single 5 V or ±2.5 V supply.
ANALOG OUTPUT
4.
Using the AD8143/AD8145 video receiver, take the following steps:
1.
2.
3.
4.
The output of the evaluation board, P2, produces differential
red (R), green (G), and blue (B) signals that are approximately ±3 V
for ±5 V supplies and approximately ±1 V using ±2.5 V supplies.
The waveform signal from this output can be checked using a
signal analyzer, such as an oscilloscope or a display/monitor.
Remove the AD8147/AD8148 from the box.
Connect +5 V to VS+, −5 V to VS−, and GND to GND
(the center pin of P3).
Connect a shunt onto the ±5 V or +5 V side of both J1 and
J2. Connect another shunt on the opposite side of OPD of J3.
Connect a video signal from a monitor/laptop or video
pattern generator on P1 (VGA port).
5.
Connect +5 V to VCC, −5 V to VEE, and GND to the
center pin of P2 of the AD8143/AD8145 evaluation board.
Connect a Cat-5 UTP cable between P2 and P1 of the
AD8143/AD8145 evaluation board.
Connect an oscilloscope or a display/monitor to J1 of the
AD8143/AD8145 evaluation board through a VGA cable.
Turn on the power supply. The typical current of VCC/VS+
is 143 mA; the typical current of VEE/VS− is −122 mA.
The output must produce the same signal as the input.
OUTPUT PULL-DOWN (OPD) LOGIC INPUT
The OPD pin is a binary input that controls the state of the outputs.
Its binary input level is referenced to GND. When the OPD input is
driven to its low state, the output is enabled and operates normally.
When the OPD input is driven to its high state, the outputs of the
drivers are forced to a low voltage, thus presenting high impedance.
VIDEO PATTERN GENERATOR
VIDEO RECEIVER
(AD8143/AD8145)
ANALOG
OUTPUT
ANALOG
INPUT
–
– +
–
–
13362-002
+
DC POWER SUPPLY
Figure 2. Typical Evaluation Setup
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UG-861
Evaluation Board User Guide
EVALUATION BOARD SCHEMATICS AND ARTWORK
R22
2.87kΩ
VS+
R23
442Ω
R21
318Ω
C1
R24
487Ω 30pF
C8
18pF
13
14
5
R15
49.9kΩ GREEN+
4
R14
49.9kΩ RED–
2
12
9
C18
0.01µF
1
R12
82.5Ω
VS+
R4
1kΩ
+
J1
C9
R32
487Ω 30pF
C10
18pF
R13
49.9kΩ
R33
442Ω
C11 R34
30pF 487Ω
R11
39.2Ω
C12
18pF
13362-003
C19
0.01µF
R31
442Ω
C2
10µF
R16
49.9kΩ GREEN–
8
7
C20
0.01µF
VS–
6
11
10
G
VS–
OPD
Figure 3. Evaluation Board Schematic
13362-004
VS+
BLUE+
P2
RJ-45
R17
49.9kΩ
RED+
10
C1 +
10µF
3
6
R10
39.2Ω
8
VS+
B
C21
0.01µF
7
R18
49.9kΩ BLUE–
R
VS+
1
8
15
×2
C7
R30
487Ω 30pF
5
C6
18pF
4
RED
R29
442Ω
6
7
18
20
R9
82.5Ω
C5
R28
487Ω 30pF
3
5
R27
442Ω
2
1
GREEN
21
2
22
3
±2.5V
BLUE
U1
J2
C13
0.01µF
+5V/±5V
19
HSYNC
23
13
VS–
R5
39.2Ω
VS–
C14
0.01µF
16
±2.5V
C4
18pF
C3
30pF
C16
0.01µF
17
+5V/±5V
AD8148
J1
P1
VGA
R19
C2
82.5Ω 18pF
24
14
C15
0.01µF
VSYNC
R26
487Ω
R25
442Ω
VS+
Figure 4. AD8147-EVALZ/AD8148-EVALZ Evaluation Board, Front Side
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UG-861
13362-005
Evaluation Board User Guide
Figure 5. AD8147-EVALZ/AD8148-EVALZ Evaluation Board, Rear Side
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UG-861
Evaluation Board User Guide
BILL OF MATERIALS
Table 1.
Item
1
Qty
6
2
6
3
6
4
6
5
6
7
8
9
10
11
12
13
3
3
1
1
9
2
3
1
1
Reference
Designator
R23, R25, R27,
R29, R31, R33
R24, R26, R28,
R30, R32, R34
C1, C3, C5, C7,
C9, C11
C2, C4, C6, C8,
C10, C12
R9, R12, R19
R5, R10, R11
R21
R22
C13 to C21
C1, C2
J1 to J3
P3
P1
14
15
16
1
1
1
P2
R20
U1
17
18
2
2
R1, R3
CR1, CR2
Description
Resistor, standard thick film chip, R0402, 442 Ω
Manufacturer
Vishay
Part Number
CRCW0402442RFKED
487 Ω
Bourns
CR0402-FX-4870GLF
30 pF
Murata
GRM1555C1H300FA01D
Capacitor, ceramic chip mono, C0G, 0402, 18 pF
Murata
GJM1555C1H180JB01
Resistor, precision thick film chip, R0402, 82.5 Ω
Precision thick film chip, R0402, 39.2 Ω
316 Ω
Resistor, standard thick film chip, R0402, 2.87 kΩ
Capacitor, ceramic chip, X8R, C0402 0.01 μF
Capacitor, tantalum, C3528, 10 μF
Connector-PCB header, 2.54 mm, 3 position vertical
Connector-PCB header, friction lock, 3 position
D-sub connector plug, male pins, 15 position
through hole, right angle solder
Connector-PCB unfiltered modification jack
Resistor, variable, 3/8” square top, adjustable, 1k
Analog Devices IC triple differential driver for
wideband video
Resistor, precision thick film chip, R0402, 301 Ω
Diode surface mount, fast switching array
Panasonic
Panasonic
Vishay
Vishay
TDK
AVX
Molex
Molex
TE Connectivity
ERJ-2RKF82R5X
ERJ-2RKF39R2X
CRCW0402316RFKED
CRCW04022K87FKED
C1005X8R1E103K
TAJB106K016R
22-03-2031
22-11-2032
5749767-1
TE Connectivity
Bourns
Analog Devices
RJ45-8X
3299W-1-102LF
AD8147ACPZ/AD8148ACPZ
Panasonic
Diodes Incorporated
ERJ-2RKF3010X
BAS16TW-7-F
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.
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