User Guide for ANALOG DEVICES models including: EVAL-ADN4620, EVAL-ADN4621, Evaluation Board Photographs, Evaluation Board, EVAL-ADN4620, Board
EVAL-ADN4621 Evaluation Board | Analog Devices
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DocumentDocumentUser Guide | EVAL-ADN4620/EVAL-ADN4621
UG-2046
Evaluating the ADN4620/ADN4621 3.75 kV RMS, Dual-Channel LVDS 2.5 Gigabit Isolators
FEATURES
Isolated ground planes (logic side and bus side) High speed layout supports 2.5 Gigabit operation and precision
jitter measurements (<1 ps rms for random jitter) Convenient connections through SMA terminals
1.8 V power on Side 1 (VDD1) and Side 2 (VDD2) 3.3 V power for LVDS receivers on Side 1 (VIO1) and Side 2
(VIO2, used with ADN4621 only) Ground on Side 1 (GND1) and ground on Side 2 (GND2) Side 1 LVDS signals: DIN1+, DIN1-, DIN2+ or DOUT2+, DIN2- or
DOUT2- Side 2 LVDS signals: DOUT1+, DOUT1-, DOUT2+ or DIN2+,
DOUT2- or DIN2- Jumper-selectable refresh mode Termination resistors on all LVDS receivers
EVALUATION KIT CONTENTS
EVAL-ADN4620EBZ or EVAL-ADN4621EBZ
DOCUMENTS NEEDED
ADN4620/ADN4621 data sheet
EQUIPMENT NEEDED
Signal generator Oscilloscope Power supply
GENERAL DESCRIPTION
The EVAL-ADN4620EBZ and EVAL-ADN4621EBZ allow quick and easy evaluation of the ADN4620/ADN4621 low voltage differential signaling (LVDS) isolators without the need for external components. The ADN4620/ADN4621 employ the Analog Devices, Inc., iCoupler® technology to combine a 2-channel isolator with LVDS receivers and drivers into a single, 20-lead SSOP package. The ADN4620/ADN4621 are capable of running at data rates of up to 2.5 Gbps with low jitter.
The EVAL-ADN4620EBZ/EVAL-ADN4621EBZ have separate ground and power planes for each side of the isolator, with individual 1.8 V power supplies required on each side of the ADN4620/ ADN4621. This separation enables the evaluation of the ADN4620/ ADN4621 with galvanic isolation between both sides of the devices. An additional power supply providing 3.3 V is required on Side 1 (and also Side 2 for the ADN4621).
For full details on the ADN4620/ADN4621, see the ADN4620/ ADN4621 data sheet, which must be consulted in conjunction
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS.
with this user guide when using the EVAL-ADN4620EBZ or EVALADN4621EBZ. EVALUATION BOARD PHOTOGRAPHS
Figure 1. EVAL-ADN4620EBZ Photograph
Figure 2. EVAL-ADN4621EBZ Photograph Rev. 0 | 1 of 9
User Guide
EVAL-ADN4620/EVAL-ADN4621
TABLE OF CONTENTS
Features................................................................ 1 Evaluation Kit Contents......................................... 1 Documents Needed...............................................1 Equipment Needed................................................1 General Description...............................................1 Evaluation Board Photographs..............................1
Evaluation Board Configuration.............................3 Setting Up the Evaluation Board........................ 3
Evaluation Board Schematics and Artwork........... 5 Ordering Information..............................................8
Bill of Materials .................................................. 8
REVISION HISTORY 6/2022--Revision 0: Initial Version
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User Guide
EVAL-ADN4620/EVAL-ADN4621
EVALUATION BOARD CONFIGURATION
SETTING UP THE EVALUATION BOARD
On the EVAL-ADN4620EBZ or EVAL-ADN4621EBZ, connect a 3.3 V power supply to the J18 subminiature Version A (SMA) connector and connect 1.8 V power supplies to the J17 or J21 SMA connectors for Side 1 and the J19 or J22 SMA connectors for Side 2 (see Table 2). For the EVAL-ADN4621EBZ, also connect another 3.3 V power supply to the J1 SMA connector. At 1.25 GHz, with a load resistance of 100 , the maximum operating current is 80 mA from each 1.8 V power supply, 14 mA from the 3.3 V supply on Side 1, and 7 mA from the 3.3 V supply on Side 2.
VDD1 (Pin 1 and Pin 10 on the ADN4620/ADN4621) is bypassed to GND1 and VDD2 (Pin 11 and Pin 20 on the ADN4620/ADN4621) is bypassed to GND2. Similarly, VIO1 (Pin 3 on the ADN4620/ ADN4621) is bypassed to GND1 and VIO2 (Pin 13 on the ADN4621 only) is bypassed to GND2. Bypass capacitors of 0.1 µF are used in all cases.
The ADN4620/ADN4621 integrates a refresh function to correct, if necessary, the output state in the absence of any input transitions. This function ensures the correct output state at power-up, for example. To reduce internal switching noise and provide even lower jitter, the refresh function can be disabled. This functionality is accessed on the EVAL-ADN4620EBZ or EVAL-ADN4621EBZ by changing the position of the P1 and P2 jumpers for Side 1 and Side 2, respectively, as described in Table 1.
Figure 4 shows an example operation of the EVAL-ADN4621EBZ. The EVAL-ADN4620EBZ is set up similarly with the exception of no connection to J1. The SMA connectors reveal all LVDS inputs and outputs for the EVAL-ADN4620EBZ or EVAL-ADN4621EBZ (see
Table 3). To evaluate Channel 1 on the EVAL-ADN4620EBZ or EVAL-ADN4621EBZ, connect a signal generator to the evaluation board using the J3 connector and J4 connector and set up a 1.25 GHz square wave clock with an amplitude of 200 mV (400 mV peak-to-peak) and an offset of 1.2 V. Connect the oscilloscope to the J11 connector and J12 connector to perform timing measurements, including propagation delay, skew, and jitter. A differential probe with an SMA connector is recommended, terminating each output trace to 50 connected to 1.24 V (providing 100 differential termination and matching the ADN4620/ADN4621 driver offset voltage (VOS)). Refer to Table 3 for the connectors to use to evaluate Channel 2 on the EVAL-ADN4620EBZ or EVAL-ADN4621EBZ. Figure 3 shows a plot of the oscilloscope connected via the J11 connector and J12 connector. The oscilloscope shows the differential voltage, that is, DOUT1+ - DOUT1-.
Figure 3. DOUT1- and DOUT1+ with a 1.25 GHz Clock, Differential
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Figure 4. Basic LVDS Isolator Evaluation Board Operation for the EVAL-ADN4621EBZ
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User Guide
EVALUATION BOARD CONFIGURATION
EVAL-ADN4620/EVAL-ADN4621
Table 1. Jumper Configuration for EVAL-ADN4620EBZ and EVAL-ADN4621EBZ
Jumper
Position
Description
P1
1 and 2
Side 1 refresh disabled (quiet operation): REFRESH1 shorted to VDD1.
2 and 3
Side 1 refresh enabled (normal operation): REFRESH1 shorted to GND1.
P2
1 and 2
Side 2 refresh disabled (quiet operation): REFRESH2 shorted to VDD2.
2 and 3
Side 2 refresh enabled (normal operation): REFRESH2 shorted to GND2.
Table 2. Power Supply Connector Descriptions for EVAL-ADN4620EBZ and EVAL-ADN4621EBZ
Connector
Description
Side 1
J17, J21 J18
Power supply, Side 1, connect 1.8 V to one connector option Input/output power supply, Side 1, connect 3.3 V
Side 2 J19, J22
Power supply, Side 2, connect 1.8 V to one connector option
J1
Input/output power supply, Side 2, connect 3.3 V (leave open for EVAL-ADN4620EBZ)
Table 3. Input and Output Connector Descriptions for EVAL-ADN4620EBZ
Connector
EVAL-ADN4620EBZ Description
J3
DIN1+, noninverted LVDS input for Channel 1
J4
DIN1-, inverted LVDS input for Channel 1
J13
DIN2+, noninverted LVDS input for Channel 2
J14
DIN2-, inverted LVDS input for Channel 2
J11
DOUT1+, noninverted LVDS output for Channel 1
J12
DOUT1-, inverted LVDS output for Channel 1
J5
DOUT2+, noninverted LVDS output for Channel 2
J6
DOUT2-, inverted LVDS output for Channel 2
Table 4. Input and Output Connector Descriptions for EVAL-ADN4621EBZ
Connector
EVAL-ADN4621EBZ Description
J3
DIN1+, noninverted LVDS input for Channel 1
J4
DIN1-, inverted LVDS input for Channel 1
J13
DOUT2+, noninverted LVDS output for Channel 2
J14
DOUT2-, inverted LVDS output for Channel 2
J11
DOUT1+, noninverted LVDS output for Channel 1
J12
DOUT1-, inverted LVDS output for Channel 1
J5
DIN2+, noninverted LVDS input for Channel 2
J6
DIN2-, inverted LVDS input for Channel 2
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User Guide
EVAL-ADN4620/EVAL-ADN4621
EVALUATION BOARD SCHEMATICS AND ARTWORK
Figure 5. EVAL-ADN4620EBZ and EVAL-ADN4621EBZ Schematic
Figure 6. EVAL-ADN4620EBZ or EVAL-ADN4621EBZ Component Side and Silkscreen
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User Guide
EVAL-ADN4620/EVAL-ADN4621
EVALUATION BOARD SCHEMATICS AND ARTWORK
Figure 7. EVAL-ADN4620EBZ or EVAL-ADN4621EBZ Inner Layer 2, Ground
Figure 8. EVAL-ADN4620EBZ or EVAL-ADN4621EBZ Inner Layer 3, Power
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User Guide
EVAL-ADN4620/EVAL-ADN4621
EVALUATION BOARD SCHEMATICS AND ARTWORK
Figure 9. EVAL-ADN4620EBZ or EVAL-ADN4621EBZ Solder Side
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User Guide
EVAL-ADN4620/EVAL-ADN4621
ORDERING INFORMATION
BILL OF MATERIALS
Table 5. EVAL-ADN4620EBZ Bill of Materials
Quantity
Reference Designator
5
C1, C5, C8, C9, C11
3
C2, C4, C14
8
C3, C6, C7, C10, C12, C13, C18,
C20
3
C15, C16, C19
1
C17
1
J1
11
J3 to J6, J11 to J14, J17 to J19
2
J21, J22
Description Capacitors, 0.1 µF, 0402 Capacitors, 100 pF, 0402 Capacitors, 0402
Capacitors, 0.1 µF, 0603 Capacitor, 0603 Connector, SMA, edge Connectors, SMA, edge Connectors, SMA
2
P1, P2
2
R1, R3
1
R2
9
TP1 to TP9
3-pin, header (and jumper) Resistors, 100 , 0201 Resistor, 0201 Test points
1
TP10
1
X1
Test point
ADN4620 3.75 kV rms, dual-channel LVDS, 2.5 Gigabit isolator
Manufacturer
Kemet Murata Not fitted
AVX Not fitted Not fitted Johnson - Cinch Pasternack Enterprises Molex (and Sullins) Panasonic Not fitted Components Corporation Not fitted Analog Devices
Part Number C0402C104K4RACTU GRM1555C1H101JA01D Not applicable
06035C104KAT2A Not applicable Not applicable 142-0701-851 PE4117
22-23-2031 (and QPC02SXGN-RC) ERJ-1GNF1000C Not applicable TP104-01-01
Not applicable ADN4620BRSZ
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User Guide
ORDERING INFORMATION
EVAL-ADN4620/EVAL-ADN4621
Table 6. EVAL-ADN4621EBZ Bill of Materials
Quantity
Reference Designator
6
C1, C5, C8, C9, C11, C18
4
C2, C4, C13, C14
6
C3, C6, C7, C10, C12, C20
4
C15, C16, C17, C19
12
J1, J3 to J6, J11 to J14, J17 to J19
2
J21, J22
2
P1, P2
2
R1, R2
1
R3
10
TP1 to TP10
1
X1
Description
Manufacturer
Capacitors, 0.1 µF, 0402
Kemet
Capacitors, 100 pF, 0402 Capacitors, 0402
Murata Not fitted
Capacitors, 0.1 µF, 0603 Connectors, SMA, edge
AVX Johnson - Cinch
Connectors, SMA
Pasternack Enterprises
3-pin, header (and jumper) Resistors, 100 , 0201
Molex (and Sullins) Panasonic
Resistor, 0201 Test points
Not fitted
Components Corporation
ADN4621 3.75 kV rms, dual-channel LVDS 2.5 Analog Devices Gigabit isolator
Part Number C0402C104K4RACTU GRM1555C1H101JA01D Not applicable 06035C104KAT2A 142-0701-851 PE4117
22-23-2031 (and QPC02SXGN-RC) ERJ-1GNF1000C Not applicable TP104-01-01
ADN4621BRSZ
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 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.
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Mixed-signal and digital signal processing ICs | Analog DevicesEVAL-ADN4620 Evaluation Board | Analog DevicesEVAL-ADN4621 Evaluation Board | Analog DevicesADN4620 Datasheet and Product Info | Analog DevicesADN4621 Datasheet and Product Info | Analog Devices