EVAL-ADM3062EEB1Z [ADI]
EVAL BOARD FOR ADM3062E LFCSP;
| 型号： | EVAL-ADM3062EEB1Z |
| 厂家： | 
ADI |
| 描述： | EVAL BOARD FOR ADM3062E LFCSP |
| 文件： | 总9页 (文件大小：318K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
EVAL-ADM3062EEBZ/EVAL-ADM3062EEB1Z User Guide
UG-1220
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
Evaluating the ADM3062E 3.0 V to 5.5 V, ±12 kV IEC ESD Protected, 500 kbps RS-485
Transceiver
FEATURES
EVALUATION BOARD PHOTOGRAPHS
Easy evaluation of ADM3062E 500 kbps RS-485 transceiver
Board layouts for standard half-duplex RS-485 footprints
10-lead MSOP, ADM3062EBRMZ (EVAL-ADM3062EEBZ)
10-lead LFCSP, ADM3062EBCPZ (EVAL-ADM3062EEB1Z)
Power/ground connections through screw terminal block
3.0 V to 5.5 V operating voltage range on VCC
1.62 V to 5.5 V VIO logic supply
IEC ESD protection on the RS-485 A and B bus pins
12 kV contact discharge and 12 kV air gap discharge
Screw terminal blocks for logic input/output and RS-485 signals
Jumper-selectable enable/disable for RE and DE
Test points for measuring all signals
Figure 1. EVAL-ADM3062EEBZ Evaluation Board
Resistors and footprints for termination and biasing networks
EVALUATION KIT CONTENTS
EVAL-ADM3062EEBZ or EVAL-ADM3062EEB1Z
ADDITIONAL EQUIPMENT NEEDED
Oscilloscope
Signal generator or universal asynchronous
receiver/transmitter (UART)
3 V to 5 V supply
GENERAL DESCRIPTION
The EVAL-ADM3062EEBZ and EVAL-ADM3062EEB1Z allow
quick and easy evaluation of the ADM3062E 500 kbps, RS-485
transceiver with standard MSOP and LFCSP footprints, respec-
tively. The evaluation boards allow the use of input and output
functions without external components. Screw terminal blocks
provide convenient connections for power and ground, digital
input and output, and RS-485 signals. The evaluation boards
can be powered by a standard configurable bench power supply
within a 3.0 V to 5.5 V range.
Figure 2. EVAL-ADM3062EEB1Z Evaluation Board
The EVAL-ADM3062EEBZ evaluation board has a footprint for
the ADM3062EBRMZ half-duplex RS-485 transceiver in a 10-lead
MSOP package. The EVAL-ADM3062EEB1Z evaluation board
has a footprint for the ADM3062EBCPZ half-duplex RS-485
transceiver in a 10-lead LFCSP package.
Complete specifications for the ADM3062E are provided in the
ADM3062E data sheet and must be consulted in conjunction with
this user guide when using the evaluation board.
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 9
UG-1220
EVAL-ADM3062EEBZ/EVAL-ADM3062EEB1Z User Guide
TABLE OF CONTENTS
Features .............................................................................................. 1
Evaluation Kit Contents................................................................... 1
Additional Equipment Needed....................................................... 1
General Description......................................................................... 1
Evaluation Board Photographs....................................................... 1
Revision History ............................................................................... 2
Evaluation Board Hardware............................................................ 3
Setting Up the Evaluation Board................................................ 3
Input and Output Connections .................................................. 3
Other Board Components............................................................3
Half-Duplex RS-485 Transceivers Point to Point Test..............4
IEC 61000-4-2 ESD Protection to 12 kV (Contact) and
12 kV (Air Gap) ..........................................................................4
Evaluation Board Schematics and Artwork...................................5
Ordering Information.......................................................................8
Bill of Materials..............................................................................8
Related Links..................................................................................9
REVISION HISTORY
2/2018—Revision 0: Initial Version
Rev. 0 | Page 2 of 9
EVAL-ADM3062EEBZ/EVAL-ADM3062EEB1Z User Guide
EVALUATION BOARD HARDWARE
UG-1220
SETTING UP THE EVALUATION BOARD
OTHER BOARD COMPONENTS
The EVAL-ADM3062EEBZ and EVAL-ADM3062EEB1Z
evaluation boards are powered by connecting a 3.0 V or 5.5 V
power supply to the J1 screw terminals at the top of the evaluation
board for the ADM3062E VCC pin and GND pin. A 10 µF
decoupling capacitor, C3, is fitted at the connector between VCC
and GND. The VCC pin of the RS-485 transceiver is fitted with a
100 nF decoupling capacitor, C1, with a second footprint for an
optional additional capacitor, C2. The VIO pin can be connected
with VCC or a separate 1.8 V power supply.
The EVAL-ADM3062EEBZ and EVAL-ADM3062EEB1Z
evaluation boards include footprints for termination resistors,
RT1 and RT2, as well as pull-up and pull-down resistors, R1 and
R2. Termination resistors of 120 Ω are fitted to the evaluation
board; these resistors can be removed or replaced with a different
value resistor as needed. Inserting both LK3 and LK4 adds a
60 Ω load to the RS-485 driver.
Biasing Resistors for Bus Idle Fail-Safe
Although the ADM3062E has a built in receiver fail-safe for the
bus idle condition, there are footprints on the evaluation boards
for fitting the R2 pull-up resistor to the VCC pin on A, as well as
the R1 pull-down resistor to GND on B. These resistors can be
fitted if the user is connecting to other devices that require such
external biasing resistors on the bus. The exact value required
for a 200 mV minimum differential voltage in the bus idle con-
dition depends on the supply voltage (for example, 960 Ω for
3.3 V and 1440 Ω for 5 V).
Corresponding labeled test points allow monitoring of the power
supply to the evaluation board and the probe reference to ground.
INPUT AND OUTPUT CONNECTIONS
Digital input and output signals are connected via the J3 screw
terminal block, allowing wire connections from the evaluation
boards to a signal generator or UART. The EVAL-ADM3062EEBZ
and EVAL-ADM3062EEB1Z include connections for data input
RE
(DI), receiver output (RO), receiver enable ( ), and driver enable
For more information about the bus idle fail-safe, see the
AN-960 Application Note, RS-485/RS-422 Circuit Implemen-
tation Guide.
(DE). Alternatively, jumper connections can drive these inputs
and/or connect them to the VCC and GND pins (see Table 1).
Connections to an RS-485 bus are made via a screw terminal block,
J5. For the EVAL-ADM3062EEBZ or EVAL-ADM3062EEB1Z
half-duplex boards, there are two bus input/output signals, A and B,
for noninverting and inverting signals, respectively. The bus cable
can include a common ground connection or shield and can
also be connected to the J5 screw terminal block of the evaluation
boards. Test points are available on the evaluation boards and
are appropriately labeled for all digital and bus input/output
signals.
Table 1. Jumper Configurations
Link Connection
Description
LK1
A
B
Connects the receiver enable (RE) input of the ADM3062E to the VCC pin. This setting disables the receiver.
Connects the RE input of the ADM3062E to GND. This setting enables the receiver.
Connects the RE input of the ADM3062E to the J3-2 terminal block connector.
C
D
Connects the RE input of the ADM3062E to the J3-3 terminal block connector; that is, the input for both RE and DE
is set by LK1. This setting ensures that when the driver is enabled, the receiver is disabled, or when the driver is
disabled, the receiver is enabled.
LK2
A
B
C
Connects the DE input of the ADM3062E to the VCC pin. This setting enables the driver.
Connects the DE input of the ADM3062E to GND. This setting disables the driver.
Connects the DE input of the ADM3062E to the J3-2 terminal block connector.
Connects the 120 Ω RT1 termination resistor across the RS-485 A and B pins.
Disconnects the 120 Ω RT1 termination resistor across the RS-485 A and B pins.
Connects the 120 Ω RT2 termination resistor across the RS-485 A and B pins.
Disconnects the 120 Ω RT2 termination resistor across the RS-485 A and B pins.
Connects Pin VCC with Pin VIO on the ADM3062E device.
LK3
LK4
LK6
Inserted
Not inserted
Inserted
Not inserted
Inserted
Not inserted
Disconnects Pin VCC with Pin VIO on the ADM3062E device.
Rev. 0 | Page 3 of 9
UG-1220
EVAL-ADM3062EEBZ/EVAL-ADM3062EEB1Z User Guide
During testing, the EVAL-ADM3062EEBZ and EVAL-
ADM3062EEB1Z A and B pins are subjected to at least 10 positive
and 10 negative single discharges with a 1 sec interval between
each pulse. The highest specified IEC 61000-4-2 ESD test is
Level 4, which defines a contact discharge voltage of 8 kV and
an air discharge voltage of 15 k V.
HALF-DUPLEX, RS-485 TRANSCEIVERS POINT TO
POINT TEST
A point to point test can be set up with either two EVAL-
ADM3062EEBZ evaluation boards or two EVAL-ADM3062EEB1Z
evaluation boards. Figure 4 shows two half-duplex evaluation
boards in this configuration. Note that the positions of LK1 and
LK2 on each evaluation board enable the driver on one evaluation
board and the receiver on the other evaluation board. Remove
LK4 from the EVAL-ADM3062EEBZ or EVAL-ADM3062EEB1Z
evaluation board to ensure both ends of the bus have only a 120 Ω
load. Differential signals on the bus are monitored with an
oscilloscope, as well as with the DI pin and RO pin of the
ADM3062E.
Figure 3 shows the 8 kV contact discharge current waveform, as
described in the ADM3062E data sheet. Some key IEC 61000-4-2
waveform parameters are rise times of less than 1 ns and pulse
widths of approximately 60 ns.
I
PEAK
30A
90%
IEC 61000-4-2 ESD PROTECTION TO 12 kV
(CONTACT) AND 12 kV (AIR GAP)
I
I
16A
30ns
60ns
The EVAL-ADM3062EEBZ and EVAL-ADM3062EEB1Z
evaluation boards are tested to achieve protection against
IEC 61000-4-2 electrostatic discharge (ESD) to 12 kV (contact),
and 12 kV (air gap) on the RS-485 A and B bus pins.
8A
10%
The IEC 61000-4-2 ESD standard describes testing using two
coupling methods known as contact discharge and air gap
discharge. Contact discharge implies a direct contact between the
discharge gun and the equipment under test (EUT).
t
30ns
60ns
tR = 0.7ns TO 1ns
Figure 3. IEC 61000-4-2 ESD Waveform (8 kV)
During air discharge testing, the charged electrode of the discharge
gun is moved toward the EUT until a discharge occurs as an arc
across the air gap. The discharge gun does not make direct contact
with the EUT.
SIGNAL
GENERATOR
3.3V OR 5V
SUPPLY
EVAL-ADM3062EEBZ
J1
J3
RO
VIO
LK2
VCC
LK6
RO
RE
DE
DI
J5
A
RE
B
A
B
B
C
D
A
B
C
DE
DI
A
GND
GND
DI
3.3V OR 5V
SUPPLY
OSCILLOSCOPE
LK1
EVAL-ADM3062EEBZ
J1
VIO
J3
VCC
LK6
RO
RE
DE
DI
LK2
RO
RE
DE
DI
J5
A
B
C
D
B
A
B
A
A
B
C
GND
GND
DI
LK1
Figure 4. Half-Duplex RS-485 Two Board Point to Point Test
Rev. 0 | Page 4 of 9
EVAL-ADM3062EEBZ/EVAL-ADM3062EEB1Z User Guide
EVALUATION BOARD SCHEMATICS AND ARTWORK
UG-1220
Figure 5. EVAL-ADM3062EEBZ Schematic
Rev. 0 | Page 5 of 9
UG-1220
EVAL-ADM3062EEBZ/EVAL-ADM3062EEB1Z User Guide
Figure 6. EVAL-ADM3062EEB1Z Schematic
Rev. 0 | Page 6 of 9
EVAL-ADM3062EEBZ/EVAL-ADM3062EEB1Z User Guide
UG-1220
Figure 7. EVAL-ADM3062EEBZ/EVAL-ADM3062EEB1Z Silkscreen
Figure 8. EVAL-ADM3062EEBZ/EVAL-ADM3062EEB1Z Component Side/Layer 1
Figure 9. EVAL-ADM3062EEBZ/EVAL-ADM3062EEB1Z Layer 2
Rev. 0 | Page 7 of 9
UG-1220
EVAL-ADM3062EEBZ/EVAL-ADM3062EEB1Z User Guide
ORDERING INFORMATION
BILL OF MATERIALS
Table 2. EVAL-ADM3062EEBZ
Quantity Reference Designator
Description
Supplier
Part Number
MC0603B104K160CT
Not applicable
MC0201B103K100CT
B45196H3106K209
20-313140
2
1
2
2
6
3
1
2
1
1
3
2
1
2
1
2
C1, C6
Capacitor, 100 nF, 0805
Multicomp
C4
Capacitor, not placed/optional
Capacitors, 10 nF, 0603
Not applicable
Multicomp
C5, C2
C3, C7
Capacitors, 10 µF, Case B
Test points, yellow
Kemet
A, B, DE, DI, RE, RO
Vero Technologies
Vero Technologies
Campden
GND, GND, GND
Test points, black
20-2137
J1
Three-way terminal block
Four-way terminal blocks
8-pin (4 × 2), 0.1" header and shorting block
6-pin (3 × 2), 0.1" header and shorting block
Jumper blocks, 2-pin, 0.1" spacing
Resistors, not placed/optional
Resistor, 0 Ω, 0805
CTB5000/3
J3, J5
LK1
Lumberg
KRM 04
Harwin
M20-9953646
M20-9953646
M20-9990246
Not applicable
CRCW08050000Z0EA
MC 0.1W 0805 1% 120R
ADM3062EBRMZ
20-313137
LK2
Harwin
LK3, LK4, LK6
R1, R2
R3
Harwin
Not applicable
Vishay Draloric
Multicomp
Analog Devices, Inc.
Vero Technologies
RT1, RT2
U1
Resistors, 120 Ω, 0805
3 V to 5.5 V, IEC ESD protected, 500 kbps
Test points, red
VCC, VIO
Table 3. EVAL-ADM3062EEB1Z
Quantity Reference Designator
Description
Supplier
Part Number
MC0603B104K160CT
Not applicable
MC0201B103K100CT
B45196H3106K209
20-313140
2
1
2
2
6
3
1
2
1
1
3
2
1
2
1
2
C1, C6
Capacitors, 100 nF, 0805
Capacitor, not placed/optional
Capacitors, 10 nF, 0603
Multicomp
C4
Not applicable
Multicomp
C2, C5
C3, C7
Capacitors, 10 µF, Case B
Test points, yellow
Kemet
A, B, DE, DI, RE, RO
Vero Technologies
Vero Technologies
Campden
GND, GND, GND
Test points, black
20-2137
J1
Three-way terminal block
Four-way terminal blocks
8-pin (4 × 2), 0.1" header and shorting block
6-pin (3 × 2), 0.1" header and shorting block
Jumper blocks, 2-pin, 0.1" spacing
Resistors, not placed/optional
Resistor, 0 Ω, 0805
CTB5000/3
J3, J5
LK1
Lumberg
KRM 04
Harwin
M20-9953646
M20-9953646
M20-9990246
Not applicable
CRCW08050000Z0EA
MC 0.1W 0805 1% 120R
ADM3062EACPZ
20-313137
LK2
Harwin
LK3, LK4, LK6
R1, R2
R3
Harwin
Not applicable
Vishay Draloric
Multicomp
Analog Devices, Inc.
Vero Technologies
RT1, RT2
U1
Resistors, 120 Ω, 0805
3 V to 5.5 V, IEC ESD protected, 500 kbps
Test points, red
VCC, VIO
Rev. 0 | Page 8 of 9
EVAL-ADM3062EEBZ/EVAL-ADM3062EEB1Z User Guide
UG-1220
RELATED LINKS
Resource
Description
ADM3062E
AN-960
Interface RS-485 and RS-422
3.0 V to 5.5 V, 12 kV IEC ESD Protected, 500 kbps RS-485 Transceiver
RS-485/RS-422 Circuit Implementation Guide
RS-485/RS-422 Product Selection
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.
©2018 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
UG16390-0-2/18(0)
Rev. 0 | Page 9 of 9
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