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User Guide for ANALOG DEVICES models including: MAX33049E, MAX33049E Datasheet and Product Info, MAX33049E, Datasheet and Product Info, Product Info, Info
5 days ago — Connect an oscilloscope probe to RO (TP5) and verify that the signal matches the DI input . EV Kit Photo. 001. Page 2. Evaluation Board User Guide.
3 days ago — Evaluation Board User Guide. MAX33049E Evaluation Kit. Evaluates: MAX33049E ... Ordering Information appears at end of data sheet. Quick Start. Required ...
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DocumentDocumentEvaluation Board User Guide MAX33049E Evaluation Kit Evaluates: MAX33049E General Description The MAX33049E evaluation kit is a fully assembled and tested board. It demonstrates the functionality of the MAX33049E full-duplex 20Mbps RS-485 transceiver with ±25V fault protection and ±40kV ESD Human Body Model (HBM) for A/B and Y/Z data lines. Features · Easy Evaluation of the MAX33049E · Power/Ground Connections Through Screw Terminal Blocks · Screw Terminal Blocks for RS-485 Signals · Test Points for Measuring All Signals · Resistors and TVS Footprints for External Protection Devices · Proven PCB Layout · Fully Assembled and Tested Ordering Information appears at end of data sheet. EV Kit Photo Quick Start Required Equipment · MAX33049E EV kit · +5V, 500mA DC power supply · Signal/function generator that can generate a 10MHz square wave signal (Note: The EV kit can accept input signals up to 20Mbps. Ensure the signal swing does not exceed the Absolute Maximum Limits.) · Oscilloscope Procedure 1. Verify all jumpers are in their default setting. See Table 1. 2. With the +5V power supply disabled, connect the positive terminal to the VCC test point. Connect the negative terminal to one of the GND test points. 3. Set the signal/function generator to output a 2.5MHz (5Mbps) square wave between 0V to 5V. 4. Connect the positive terminal of the signal/function generator to DI (TP6) and negative terminal to any GND test point on the board. 5. Turn on the +5V DC power supply, and then enable the signal/function generator output. 6. Connect an oscilloscope probe to RO (TP5) and verify that the signal matches the DI input . 001 319-101090; Rev 0; 12/24 One Analog Way, Wilmington, MA 01887-2356, U.S.A. DOCUMENT FEEDBACK Tel: 781.329.4700 TECHNICAL SUPPORT ©2024 Analog Devices, Inc. All rights reserved. Evaluation Board User Guide MAX33049E Evaluation Kit Table 1. MAX33049E EV Kit Jumper Position Description JUMPER SHUNT POSITION 1-2 J3 2-3 1-2 J4 2-3 Closed J5 Open Closed J6 Open Default options are bold. FEATURE DE = VCC, driver enabled DE = GND, driver disabled RE = VCC, receiver disabled RE = GND, receiver enabled A is connected to Y (loopback configuration) A is not connected to Y B is connected to Z (loopback configuration) B is not connected to Z Table 2. MAX33049E EV Kit Test Points Description REFERENCE DESIGNATOR TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 SIGNAL VCC GND GND GND RO DI A B Z Y Table 3. MAX33049E EV Kit Terminal Blocks and Headers Description REFERENCE DESIGNATOR J1 J2 J7 PIN NUMBER 1 2 1 2 3 4 1 2 3 4 5 SIGNAL VCC GND VCC RO DI GND GND Y Z B A analog.com Rev 0 2 of 11 Evaluation Board User Guide MAX33049E Evaluation Kit Detailed Description of Hardware The MAX33049E EV kit is a fully assembled and tested circuit board for evaluating the MAX33049E full-duplex RS485/RS-422 transceiver with ±25V fault protection and ±40kV ESD Human Body Model (HBM) protection. The EV kit can be powered with a +3.0V to +5.5V supply. The EV kit allows all the input and output functions to be exercised without the need for additional external components. Jumper configurations are shown in Table 1, test points are listed in Table 2, and screw terminal blocks and headers are listed in Table 3. Decoupling Capacitors The MAX33049E EV kit can be powered by connecting a +3.0V to +5.5V power supply to the screw terminals or adjacent test points for VCC and GND at the top of the evaluation board. A 0.1µF decoupling capacitor is next to the VCC pin of the RS-485 transceiver (U1). Additionally, the EV kit includes a 22µF tantalum capacitor installed next to the J1 terminal block in case of unfiltered supplies. Input/Output Connections The MAX33049E EV kit includes connections for data input (DI) and receiver output (RO). Logic I/O is connected through a 0.1in header, J2, on the left side of the board to allow wire connections to a microcontroller. Connections to an RS-485 bus are made with screw terminal block J7 on the right side of the board. There are two input bus signals, A and B, for noninverting and inverting signals, respectively, and two corresponding output signals, Y and Z. Test points are available on the board and appropriately labeled for all digital and bus I/O signals. On-Board Termination A properly terminated RS-485 bus is terminated at each end, and the characteristic impedance of the twisted pair the cable is typically 120. The MAX33049E EV kit provides on-board 120 termination (R2) between the Y and Z driver outputs and 120 (R1) between the A and B receiver inputs. If the EV kit is evaluated with an already terminated system, remove the on-board 120 terminations. External Protection The MAX33049E has integrated high ESD protection with a ±40kV Human Body Model (HBM), ±15kV Air-Gap Discharge, and ±10kV Contact Discharge. The MAX33049E EV kit provides options for added external protection. Swap out the 0 series resistors R3R6 on the A, B, Y and/or Z lines for other protection components and/or install TVS diodes on D1D4 footprints. For applications that require high-voltage transient protection, such as surge transients, external protection is needed on the bus lines. Choose TVS diodes with a clamp voltage below ±30V and ensure external protection added to the bus lines does not slew the signals at required operating data rate. analog.com Rev 0 3 of 11 Evaluation Board User Guide MAX33049E Evaluation Kit Evaluating ESD Protection The MAX33049E EV kit can be used to evaluate ESD performance for the MAX33049E, based on the IEC 61000-4-2 standard. Without added external protection, the EV kit can verify the ESD performance up to ±10kV Contact Discharge and ±15kV Air-Gap Discharge. Follow the IEC 61000-4-2 guidelines for a proper test setup. Apply ESD stresses on the terminal block J7 for signal A, B, Y, and Z. Place a bleeding resistor cable and an earth ground return as close as possible to where the stress is applied. See Figure 1. ESD GUN HORIZONTAL COUPLING PLANE INSULATION SUPPORT 470k 470k 470k POWER SUPPLY GROUND REFERENCE PLANE Figure 1. IEC 61000-4-2 ESD Test Setup 470k 002 analog.com Rev 0 4 of 11 Evaluation Board User Guide MAX33049E Evaluation Kit Lab Connection To evaluate the full-duplex functionality using only the MAX33049E EV kit, set the EV kit in the loopback configuration by closing J5 (which connects A and Y) and J6 (which connects B and Z). A signal generator connected to DI allows verification of the bus signals and the receiver output. See Figure 2. OSCILLOSCOPE DC POWER SUPPLY +3.3V OR +5V DC 003 SIGNAL GENERATOR + Figure 2. Connection Diagram Ordering Information PART MAX33049EEVKIT# #Denotes RoHS compliance. TYPE EV Kit analog.com Rev 0 5 of 11 Evaluation Board User Guide MAX33049E Evaluation Kit MAX33049E EV Kit Bill of Materials REF DES C1 C2 QTY 1 1 MFG PART # GCM155L81E104 KE02 GRM21BD71A22 6ME44 MANUFACTURER MURATA MURATA J1 1 1727010 PHOENIX CONTACT SULLINS J2 1 PBC04SAAN ELECTRONICS CORP. VALUE 0.1UF 22UF 1727010 PBC04SAAN J3, J4 2 PBC03SAAN SULLINS PBC03SAAN J5, J6 J7 R1, R2 R3R6 TP1 2 PCC02SAAN SULLINS PCC02SAAN 1 1727049 PHOENIX CONTACT 1727049 2 CRCW0805120R FK VISHAY DALE 120 RC1608J000CS;C SAMSUNG 4 R0603-J/- ELECTRONICS;B 000ELF;RC0603J OURNS;YAGEO 0 R-070RL PH 1 5010 KEYSTONE N/A TP2TP4 3 5011 KEYSTONE N/A TP5, TP6 2 5012 KEYSTONE N/A TP7 TP10 U1 PCB D1D4 4 5127 KEYSTONE N/A 1 MAX33049EASD+ ANALOG DEVICES MAX33049EA SD+ 1 MAX33049E 4 SM30T26CAY MAXIM ST MICROELECTRON ICS PCB 25.7V DESCRIPTION CAP; SMT (0402); 0.1UF; 10%; 25V; X8L; CERAMIC CAP; SMT (0805); 22UF; 20%; 10V; X7T; CERAMIC CONNECTOR; FEMALE; THROUGH HOLE; GREEN TERMINAL BLOCK; RIGHT ANGLE; 2PINS CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT; 4PINS; -65 DEGC TO +125 DEGC CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT; 3PINS; -65 DEGC TO +125 DEGC CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT THROUGH; 2PINS; -65 DEGC TO +125 DEGC CONNECTOR; THROUGH HOLE; GREEN TERMINAL BLOCK; RIGHT ANGLE; 5PINS RES; SMT (0805); 120; 1%; +/100PPM/DEGC; 0.1250W RES; SMT (0603); 0; 5%; JUMPER; 0.1000W TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.445IN; BOARD HOLE=0.063IN; RED; PHOSPHOR BRONZE WIRE SIL; TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.445IN; BOARD HOLE=0.063IN; BLACK; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH; TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.445IN; BOARD HOLE=0.063IN; WHITE; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH; TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.445IN; BOARD HOLE=0.063IN; BLUE; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH; EVKIT PART - IC; MAX33049EASD; PACKAGE CODE: SOIC_N; PACKAGE OUTLINE DRAWING: R-14; SOIC14 PCB:MAX33049E DIODE; TVS; SMC (DO-214AB); PIV=25.7V; IF=0.2UA; analog.com Rev 0 6 of 11 Rev 0 7 of 11 analog.com VCC C1 0.1UF C2 22UF GND TP5 RO VCC J2 PBC04SAAN VCC 1 2 RO 3 DI 4 GND J3 PBC03SAAN VCC DE 1 2 3 GND J4 PBC03SAAN VCC 1 2 RE 3 GND GND GND GND TP6 DI 2 RO 3 RE 4 DE 5 DI 14 U1 MAX33049EASD+ VCC A 12 B 11 Z 10 Y9 13 NC 8 NC 1 NC 7 GND 6 GND GND TP1 J1 VCC 1727010 1 VCC 2 GND VCC TP2 TP3 TP4 GND GND GND GND R3 0 R1 120 R4 0 J5 PCC02SAAN A Y R5 0 R2 120 R6 0 1 2 J6 PCC02SAAN B Z 1 2 TP7 A D1 25.7V DNI TP8 B GND D2 25.7V DNI GND J7 1727049 5 4 3 2 1 A B Z Y GND D3 25.7V DNI GND TP9 Z GND D4 25.7V DNI TP10 Y GND 004 Evaluation Board User Guide MAX33049E EV Kit Schematic MAX33049E Evaluation Kit Evaluation Board User Guide MAX33049E EV Kit PCB Layout MAX33049E Evaluation Kit 006 005 MAX33049E EV Kit--Top Silkscreen MAX33049E EV Kit PCB Layout--Top Layer 008 007 MAX33049E EV Kit PCB Layout--Layer 2 (GND Layer) MAX33049E EV Kit PCB Layout--Layer 3 (VCC Layer) analog.com Rev 0 8 of 11 Evaluation Board User Guide MAX33049E Evaluation Kit MAX33049E EV Kit PCB Layout (continued) 009 010 MAX33049E EV Kit PCB Layout--Bottom Layer MAX33049E EV Kit--Bottom Silkscreen analog.com Rev 0 9 of 11 Evaluation Board User Guide Revision History REVISION NUMBER 0 REVISION DATE 12/24 Initial release MAX33049E Evaluation Kit DESCRIPTION PAGES CHANGED -- analog.com Rev 0 10 of 11 Evaluation Board User Guide Notes MAX33049E Evaluation Kit ALL INFORMATION CONTAINED HEREIN IS PROVIDED "AS IS" WITHOUT REPRESENTATION OR WARRANTY. NO RESPONSIBILITY IS ASSUMED BY ANALOG DEVICES FOR ITS USE, NOR FOR ANY INFRINGEMENTS OF PATENTS OR OTHER RIGHTS OF THIRD PARTIES THAT MAY RESULT FROM ITS USE. SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE. NO LICENSE, EITHER EXPRESSED OR IMPLIED, IS GRANTED UNDER ANY ADI PATENT RIGHT, COPYRIGHT, MASK WORK RIGHT, OR ANY OTHER ADI INTELLECTUAL PROPERTY RIGHT RELATING TO ANY COMBINATION, MACHINE, OR PROCESS, IN WHICH ADI PRODUCTS OR SERVICES ARE USED. TRADEMARKS AND REGISTERED TRADEMARKS ARE THE PROPERTY OF THEIR RESPECTIVE OWNERS. ALL ANALOG DEVICES PRODUCTS CONTAINED HEREIN ARE SUBJECT TO RELEASE AND AVAILABILITY. analog.com Rev 0 11 of 11