ISO-CABLEZ User Guide
UG-733
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
ISO-CABLEZ User Guide
FEATURES
GENERAL DESCRIPTION
Isolated communication
I2C
SPI
GPIO
Isolated power
USB to isolated serial interface
The ISO-CABLEZ isolated serial interface board is used to
communicate with certain Analog Devices, Inc., evaluation
boards for customer evaluation. The isolated serial input/output
interface is required to communicate between two systems that
require galvanic isolation between two different ground planes
The ISO-CABLEZ isolated serial interface board provides
connectivity through the USB-SDP-CABLEZ to the PC,
allowing the USB-SDP-CABLEZ to be used to evaluate the
evaluation board from the PC application. The ISO-CABLEZ
design has isolated power, I2C, and serial peripheral interface
(SPI) capabilities.
HARDWARE REQUIREMENT
Serial input/output interface USB-SDP-CABLEZ
For more information on the ISO-CABLEZ isolated serial
interface board, go to www.analog.com/ISO-CABLEZ.
12485-001
ISO-CABLEZ ISOLATED SERIAL INTERFACE BOARD PHOTOGRAPH
Figure 1.
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 9
UG-733
ISO-CABLEZ User Guide
TABLE OF CONTENTS
Features .............................................................................................. 1
Evaluation Board Hardware .............................................................4
Hardware Requirement.................................................................... 1
Connectors and LED Functions ..................................................4
General Description ......................................................................... 1
Evaluation Board Schematics and Artwork ...................................5
ISO-CABLEZ Isolated Serial Interface Board Photograph ......... 1
Ordering Information .......................................................................8
Revision History ............................................................................... 2
Bill of Materials ..............................................................................8
Evaluation Board Description......................................................... 3
REVISION HISTORY
8/14—Revision 0: Initial Version
Rev. 0 | Page 2 of 9
ISO-CABLEZ User Guide
UG-733
EVALUATION BOARD DESCRIPTION
The ISO-CABLEZ is powered by the 5 V power supply from the
USB-SDP-CABLEZ. The ADuM5402 only needs power from
one side and can provide power across the isolation barrier via
the integrated dc-to-dc converter. The ADuM1250 and
ADuM3152 must be powered from both the primary and
secondary sides. The primary side is powered by the USB-SDPCABLEZ, and the secondary side is powered by the ADuM5402
isolated power. The 10-way connectors (J1 and J2) are used to
connect the ISO-CABLEZ board with the USB-SDP-CABLEZ
dongle to connect the evaluation board to a PC.
The ISO-CABLEZ isolated serial interface board is required
to communicate between two systems that require galvanic
isolation between two different ground planes, such as
applications that have a large ground level difference between
the evaluation board and the PC or microcontroller.
The USB-SDP-CABLEZ is usually referenced to a 0 V ground
plane, whereas the evaluation board is referenced to a different
ground plane. In this case, the I2C signals, SPI signals, and
digital input and output signals that go to and from the
evaluation board must also be isolated. The ISO-CABLEZ
isolator board block diagram is shown in Figure 2 and details
the capabilities of the board.
Figure 3 shows how to connect the ISO-CABLEZ to one evaluation
board. Only one ISO-CABLEZ isolated serial interface board is
required for multiple evaluation board cascade setup.
Analog Devices provides a range of various isolators using
iCoupler® technology. The ISO-CABLEZ isolation board
includes the following isolators:
I2C
DIGITAL
INPUT/OUTPUT
POWER
I2C
ADuM1250
DIGITAL
INPUT/OUTPUT
ADuM5402
SPI
POWER
SPI
ADuM3152
USB-SDP-CABLEZ
EVALUATION
BOARD
ISOLATION
BARRIER
Figure 2. ISO-CABLEZ Isolated Serial Interface Board Block Diagram
I2C, SPI
I2C, SPI
USB
PC
USB-SDP-CABLEZ
DONGLE
POWER
ISO-CABLEZ
DIGITAL
INPUT/OUTPUT
DIGITAL
INPUT/OUTPUT
Figure 3. Board Setup for Evaluating One Evaluation Board
Rev. 0 | Page 3 of 9
EVALUATION
BOARD
12485-003
•
The ADuM1250 is used to demonstrate the I2C isolation.
The ADuM5402 provides quad-channel digital isolation
with isoPower®. When the primary side is powered, the
isoPower device powers the isolated side of the board.
The ADuM3152 provides 7-channel digital isolation
optimized for isolated SPI interfaces.
12485-002
•
•
UG-733
ISO-CABLEZ User Guide
EVALUATION BOARD HARDWARE
CONNECTORS AND LED FUNCTIONS
Table 1. LED Functions
LED
ISO_PWR
Description
Secondary side board power; yellow LED.
Table 2. Connector Functions
Connector
J1
J2
Description
Connect J1 with the USB-SDP-CABLEZ dongle.
Connect J2 with the 10-way Micro-MaTch ribbon cable to link to the evaluation board.
Table 3. 10-Pin Connector Assignments for J1
Pin No.
1
2
3
4
5
6
7
8
9
10
Pin Name
PC_I2C_SCL
PC_GND
PC_I2C_SDA
PC_VBUS_5V
PC_SPI_MISO
PC_GPIO
PC_SPI_SCLK
PC_SPI_MOSI
PC_SPI_CS_A
PC_GND
Description
I2C serial clock.
Ground connection.
I2C serial data.
Voltage bus. Connected directly to the USB 5 V supply.
SPI master in, slave out data.
General-purpose input/output.
SPI clock.
SPI master out, slave in data.
SPI Chip Select A.
Ground connection.
Table 4. 10-Pin Connector Assignments for J2
Pin No.
1
2
3
4
5
6
7
8
9
10
Pin Name
ISO_SCL
ISO_GND
ISO_SDA
ISO_5V
ISO_MISO
ISO_GPIO1
ISO_SCLK
ISO_MOSI
ISO_CS_A
ISO_GND
Description
I2C serial clock.
Ground connection.
I2C serial data.
Voltage bus. Connected directly to the USB 5 V supply.
SPI master in, slave out data.
General-purpose input/output.
SPI clock.
SPI master out, slave in data.
SPI Chip Select A.
Ground connection.
Rev. 0 | Page 4 of 9
PC_I2C_SCL
PC_I2C_SDA
T11
PCGND
0Ω
T17
PC_SPI_CS_A
T16
PC_SPI_MOSI
8
9
10
PC_SPI_SCLK
PC_GPIO
7
6
PC_SPI_MISO
PC_VBUS_5V
5
PC_I2C_SDA
PC_I2C_SCL
4
R15
R10
100kΩ
VSS
A2
A1
A0
3
2
1
R9
100kΩ
PC_3V3
SD2
SC2
SD1
SC1
SD0
SC0
SD7
SC7
SD6
SC6
SD5
SC5
SD4
SC4
SD3
U14
PCA9547PW SC3
RESET
SCL
SDA
VDD
24
C16
19
20
17
18
15
16
13
14
10
11
8
9
6
7
4
5
100nF
PCGND
C8
100nF
PC_3V3
A0
A1
A2
VSS
5
SDA
6
SCL
7
WP
8
VCC
C14
1µF
T26
3
PC_VBUS_5V
IN
OUT
PCGND
1
GND
T27
PC_3V3
C15
1µF
2
PC_3V3
R23 0Ω
C9
DNI
PCGND
4
3
2
1
U16
READY
SDAIN
SDAOUT
VCC
LTC4307
LTC-4307
FOR BUS RECOVERY
GND
SCLIN
SCLOUT
ENABLE
PCGND
GND
VDD
4
5
6
7
9
10
11
12
5
6
7
8
PC_3V3
PC_GPIO_MON
I2C_STATE
PWRGD_ISO
PC_GPIO_SEL
100nF
C26
PC_VBUS_5V
BASE ADDRESS: 0x20
P0 TO P5 IS SET AS OUTPUTS
AND P6, P7 AS INPUTS TO PCF8574
8
16
U1
PCF8574T
1
P0
A0
2
P1
A1
P2
3
A2
P3
15
P4
SDA
14
P5
SCLK
P6
13
INT
P7
CH0 = 0 FOR GPIO AS OUTPUT FROM THE PC SIDE,
CH0 = 1 FOR GPIO AS INPUT TO THE PC SIDE
R28
PC_SCL
R19 0Ω
100nF
100kΩ
R2
100kΩ
ADP3338-3.3V
U8
BASE ADDRESS: 0x57
1
2
3
4
R3
100kΩ
10kΩ
T14
PC_3V3
U5 24LC64A-I/MS
R16
T13
PCGND
100kΩ
R7
R8
PC_3V3
10kΩ
R22
PC SIDE
BASE ADDRESS: 0x 70
I2C- MUX, DEFAULT CHANNEL-CH0,
ISOCHANNEL-CH7
12
2
21
0Ω
0Ω
R25
3
R26
10kΩ
R1
22
23
T12
1
DNI
R18
0Ω
R24
J1
PCGND
USB-SDP-CABLEZ
DNI
R17
PC_3V3
10WAY-SOCKET-SMD-MICROMATCH
Rev. 0 | Page 5 of 9
R27
Figure 4. ISO-CABLEZ, PC Side
100kΩ
T15
GND
S1
D
S2
U17
ADG849
VDD
IN
3
2
1
IN
4
5
6
GND
VDD
R48
PCGND
SD0
S1
D
PC_GPIO_ON
C22
100nF
PCGND
PWRGD_ISO
GND
NC
A4
A3
A2
A1
VCCA
U15
EN
NC
Y4
Y3
Y2
Y1
VCCY
PC_GPIO_ON
8
9
10
11
12
13
14
PCGND
C21
100nF
PC_3V3
PC_ISOPWRGD
PC_GPIO_SELECT
PC_GPIO_OUT
PC_GPIO_IN
PC_VBUS_5V
ADG3304BRUZ
LEVEL TRANSALTOR
7
6
5
4
3
2
1
PC_3V3
I2C_STATE
PC_GPIO_ON
PCGND
T24
PC_GPIO_SEL
T21
PC_3V3
PC_GPIO
4
5
6
T20
PC_SDA
T19
S2
U12
ADG849
DNI
R52
ISOLATE THE PC_GPIO WHEN
THE CH1 OF PCF8574 IS HIGH.
3
2
1
PCGND
100nF
C18
PC_VBUS_5V
PCGND
C7
100nF
100kΩ
10kΩ
R14
PC_3V3
ISO-CABLEZ User Guide
UG-733
EVALUATION BOARD SCHEMATICS AND ARTWORK
12485-004
Figure 5. ISO-CABLEZ, PC Side and Isolated Side
Rev. 0 | Page 6 of 9
C5
PCGND
8
0Ω
R30
8
7
6
5
4
3
2
1
PCGND
PCGND
10
9
7
6
0Ω
PC_SPI_CS_A
R31
5
PC_SPI_MISO
2
1
4
PC_GPIO_MON
U2
GND1
SCL1
SDA1
U3
GND1
VOC
VIB
VIA
MSS
MI
MO
MCLK
GND1
VDD1
U7
GND1
RCOUT
VOD
VOC
VIB
VIA
GND1
VDD1
5
6
7
9
10
11
12
13
14
15
GND2
VIC
VOB
VOA
SSS
SO
SI
SCLK
GND2
VDD2
ADUM3152
GNDISO
VSEL
VID
VIC
VOB
VOA
GNDISO
ADuM5402
16
VISO
GND2
SCL2
SDA2
VDD2
8
SCL1
10µF
C1
ISO_5V
R20
2.2kΩ
T7
T8
ISO_MOSI
ISO_MISO
ISO_CS_A
16
15
11
12
13
14
ISO_SCLK
ISO_PWR
1.8kΩ
R46
C23
C12
1µF
3
IN
GND
1
7
6
5
4
3
2
C13
1µF
2
ISO_GND
OUT
ISO_3V3
ISO_GND
GND
NC
A4
A3
A2
A1
1
100nF
C24
VCCA
U6
ADP3338-3.3V
EN
NC
Y4
Y3
Y2
Y1
VCCY
ISO_5V
8
9
10
11
12
13
14
ISO_GND
ISO_GND
U11
ADG3304BRUZ
100nF
ISO_5V
RY 6
TY 5
GND 4
ISO_GND
100nF
C10
ISOLATED SIDE
ISO_5V
VCC 8
RX 2
TX 3
P82B96_0
ISO_3V3
7 SY
1 SX
U10
17
ISO_GPIO1
ISO_PWRGD
ISO_5V_GPIO_IN
ISO_5V_GPIO_OUT
ISO_GPIO_SELECT
100nF
ISO_GND
ISO_3V3
ISO_GND
T22
C2
100nF
C19
R21
2.2kΩ
SDA1
ISO_GND
100nF
C3
ISO_3V3
18
19
20
ISO_3V3
ADuM1250
ISOLATION
BARRIER
VDD1
PCGND
3
DNI
R43
100nF 10µF
C4
4
3
2
1
PC_VBUS_5V
100nF
C6
PC_SPI_SCLK
PCGND
PC_3V3
R42
DNI
PCGND
T10 T9
R4
100kΩ
PC_3V3
PC_SPI_MOSI
PCGND
C20
100nF
PC_ISOPWRGD
PC_GPIO_IN
PC_GPIO_OUT
PC_GPIO_SELECT
PC_SCL
PC_SDA
R5
100kΩ
PC SIDE
ISO_GND
T1
T3
ISO_GPIO_IN
ISO_GPIO_OUT
ISO_GPIO_SEL
U13 USBLC6-2
USBLC6-2P6
1
6
I/O1A I/O1B
2
5
GND VBUS
3
4
I/O2A I/O2B
ISO_3V3
T18
C11
100nF
T2
ISO_5V
100nF
C17
ISO_5V
100Ω
100Ω
S1
4
5
6
T4
R47
T23
5
3
VCC
MR
RST IN
GND
2
RESET
1
4
ISO_MISO
R50
ISO_SDA
ISO_SCL
ISO_GND
R29
0Ω
T6
10
9
8
7
6
5
4
3
2
1
J2
100kΩ
ISO_3V3
R51
1kΩ
R53
11kΩ
ISO_5V
ISO_GPIO_OUT
ISO_GPIO1
ISO_GPIO_IN
ISO_GND
T5
ISO_PWRGD
100Ω
ISO_CS_A
ISO_MOSI
ISO_SCLK
ISO_GPIO1
ISO_SCL
ISO_SDA
U9
ADM6306D131ARJZ1R7
GND
D
S2
U4
ADG849
VDD
IN
C25
1µF
ISO_3V3
3
2
1
ISO_GND
D1
1SMB5919BT3G
5.6V
R13
R12
R11
2.2kΩ
ISO_GND
100kΩ
R49
ISO_5V
R6
2.2kΩ
ISO_3V3
10WAY-SOCKET-SMD-MICROMATCH
PC_3V3
UG-733
ISO-CABLEZ User Guide
12485-005
EVAL-BOARD
UG-733
Figure 6. ISO-CABLEZ Layer 1
12485-009
12485-006
ISO-CABLEZ User Guide
12485-010
12485-007
Figure 9. ISO-CABLEZ Layer 4
Figure 10. ISO-CABLEZ Assembly Top
12485-008
Figure 7. ISO-CABLEZ Layer 2
Figure 8. ISO-CABLEZ Layer 3
Rev. 0 | Page 7 of 9
UG-733
ISO-CABLEZ User Guide
ORDERING INFORMATION
BILL OF MATERIALS
Table 5.
Designator
C1, C5
C2 to C4, C6 to C11, C16 to C24, C26
C12 to C15, C25
D1
ISO_PWR
J1, J2
R1
R2 to R5, R7 to R10
R6
R11, R20, R21
R12, R13
R14, R16, R22
R15, R28, R50, R52
R17, R18
R19, R23 to R26, R30, R31
R27, R48, R49
R29
R42, R43
R46
R47
R51
R53
T1
T2
T3
T4
T5, T6, T11, T13, T14, T19 to T21, T24, T26, T27
T7
T8
T9
T10
T12
T15
T16, T17
T18
T22, T23
U1
U2
U3
U4, U12, U17
U5
U6, U8
U7
U9
U10
U11, U15
U13
U14
U16
Description
SMD capacitor
SMD capacitor
SMD capacitor
Zener diode, 5.6 V, 3 W
LED, yellow, 0603, SMD
10-way, female SMD Micro-MaTch
Resistor, 10 kΩ, 0.063 W, 1%, 0603
Resistor, 100 kΩ, 0.063 W, 1%, 0402
SMD resistor
Resistor, 2.2 kΩ, 0.063 W, 1%, 0402
Resistor, 100 Ω, 0.063 W, 1%, 0402
Resistor, 10 kΩ, 0.063 W, 1%, 0402
Resistor, 0805, 1%, 0 Ω
Resistor, 0 Ω, 0603
Resistor, 0603, 1%, 0 Ω
Resistor, 100 kΩ, 0.1 W, 1%, 0805
Resistor, 100 kΩ, 0.063 W, 1%, 0603
Resistor, 0 Ω, 0603
Resistor, 1.8 kΩ, 0.063 W, 1%, 0603
Resistor, 100 Ω, 0.1 W, 1%, 0805
Resistor, 1.1 kΩ, 0.063 W, 1%, 0603
Resistor, 11 kΩ, 0.1 W, 1%, 0805
Test point, ISO_GPIO_IN
Test point, ISO_GPIO_SEL
Test point, ISO_GPIO_OUT
Test point, ISO_GPIO1
Test point, keep free of solder
Test point, SCL1
Test point, SDA1
Test point, SDA_IN
Test point, SCL_IN
Test point, PC_I2C_SCL
Test point, PC_GPIO_SEL
Test point, PCGND
Test point, ISO_3V3
Test point, ISO_GND
PCF8574, input/output expander, 8-bit, 16-lead SOIC
Digital isolator
Digital isolator
Analog switch; single; single-pole, double throw (SPDT); 6-lead SC70
IC, EEPROM, serial 64 kb, SMD, MSOP8
Voltage regulator
Digital isolator
Programmable supervisory IC
I2C bus buffer
Bidirectional, logic level translator
Low capacitance ESD protection
8-channel, I2C bus multiplexer with reset
Bidirectional, I2C buffer with enable/ready signals
Rev. 0 | Page 8 of 9
Stock Code
FEC 1288204
FEC 1692286
FEC 1833845
FEC 1431162
FEC 1685069
FEC 3784745
FEC 9330399
FEC 1358096
FEC 2059231RL
FEC 1358051
FEC 1358015
FEC 1358069
FEC 9333681
Do not insert
FEC 9331662
FEC 9332405
FEC 9330402
Do not insert
FEC 9330712
FEC 9332375
FEC 9330445
FEC 9332456
Do not insert
Do not insert
Do not insert
Do not insert
Do not insert
Do not insert
Do not insert
Do not insert
Do not insert
Do not insert
Do not insert
Do not insert
Do not insert
Do not insert
FEC 1690393
ADuM1250ARZ
ADuM5402ARWZ
ADG849YKSZ-REEL7
FEC 1331335
ADP3338AKCZ-3.3RL7
ADuM3152ARSZ
ADM6306D131ARJZ1R7
FEC 8906068
ADG3304BRUZ
FEC 1295310RL
FEC 2212121
FEC 1627455 (US)
ISO-CABLEZ User Guide
UG-733
NOTES
I2C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors).
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.
©2014 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
UG12485-0-8/14(0)
Rev. 0 | Page 9 of 9