MAXM22510EVKIT#

Click here for production status of specific part numbers. MAXM22510/MAXM22511 Evaluation Kit Evaluates: MAXM22510/MAXM22511 General Description Startup Procedure The MAXM22510/MAXM22511 evaluation kit (EV kit) is a fully assembled and tested PCB that demonstrates the functionality of the MAXM22510/MAXM22511 isolated RS-485/RS-422 transceiver module. The EV kit operates from a single 3.3V supply. Features ●● Operates From a Single 3.3V Supply ●● Terminal Block Connectors for Easy RS-485/RS-422 Evaluation ●● Up to 2500VRMS Isolation for 60s ●● Fully Assembled and Tested Quick Start Required Equipment ●● MAXM22510/MAXM22511 EV kit ●● 3.3V, 300mA DC power supply ●● Signal/function generator ●● Oscilloscope Ordering Information appears at end of data sheet. 319-100244; Rev 1; 1/19 The EV kit is fully assembled and tested. Follow the steps below to verify board operation. 1) Set the DC power supply to 3.3V and connect the DC power supply between the EV kits VDDA and GNDA connectors. 2) Ensure that all jumpers are in their default positions (see Table 1). 3) Turn on the power supply. 4) Set the signal/function generator to output a 100kHz 0-to-3.3V square wave. NOTE: Set the signal/function generator to operate with a high-impedance load. If needed, the R1 pad is available to add a 50Ω impedance to ground. 5) Connect the signal/function generator to the TXD test point. 6) Using the oscilloscope, verify that the Y, Z, and RXD outputs switch as the TXD signal toggles. MAXM22510/MAXM22511 Evaluation Kit Detailed Description of Hardware The EV kit is a fully assembled and tested circuit board for evaluating the MAXM22510/MAXM22511 isolated RS-485/RS-422 transceiver module (U1). The EV kit is designed to evaluate the MAXM22510/MAXM22511 alone or in a standard RS-485 configuration. Powering the Board The MAXM22510/MAXM22511 operates from a single supply. Connect an external 3.3V supply to the VDDA test point (TP6). Connect the ground terminal of the supply to the GNDA test point (TP7). The integrated DC/DC in the MAXM22510/MAXM22511 generates the isolated power for the B-side/isolated side of the board. Evaluating the Isolated RS-485 Interface Driver and Receiver Enable Selection The EV kit features two jumpers (J2 and J4) to enable/ disable the driver and receiver outputs. To enable the driver outputs (Y and Z), set the J4 jumper to 1-2 (‘H’). Set J4 to 2-3 to disable the Y and Z outputs. To enable the receiver on the MAXM22510/MAXM22511, set the J2 jumper to 2-3 (‘L’). Set J2 to 1-2 to disable the receiver. Enabling/Disabling Shutdown Mode In shutdown mode, the internal DC/DC is disabled and no power is generated on the isolated side of the board. The J3 jumper is available to enable/disable shutdown mode for the MAXM22510/MAXM22511. Set the J3 jumper to 2-3 for normal operation. Set J3 to 1-2 to enter shutdown mode. The SBA output is high impedance during shutdown and is not pulled high. The R6 pad on the board is available to add a pull-up resistor to SBA if SBA must be high when the MAXM22510/MAXM22511 is in shutdown mode. Evaluates: MAXM22510/MAXM22511 On-Board Resistor Configurations To evaluate the MAXM22510/MAXM22511 at the endof-the-line in a RS-485/RS-422 bus, close J6 to connect a 120Ω termination resistor (R3) between the A and B RS-485 receiver inputs. Close J5 to connect a 120Ω termination resistor (R2) between the Y and Z driver outputs. Pullup and pulldown resistors are generally used on the receiver inputs to guarantee a known state in the event that all nodes on the bus are in receive mode, or the cable becomes disconnected. The exact value for these resistors varies with the application. R7 and R9 pads are provided for pullup and pulldown resistors on the Y and Z lines. R10 and R12 pads provide for pullup and pulldown resistors on the A and B lines, if needed. The use of any of these resistors is purely optional. Note that the MAXM22510/MAXM22511 features true fail-safe receiver inputs, which ensures that RXD is high when the receiver inputs are shorted, open, or connected to an idle bus. RS-485 Interface Protection The MAXM22510/MAXM22511 RS-485 interface pins (Y, Z, A and B) feature internal ESD protection up to ±35kV ESD (HBM), ±18kV ESD (Air gap), ±8kV ESD (Contact). SM712 TVS diodes have been added to the I/O lines for added protection up to ±30kV ESD (Air) and ±30kV ESD (Contact). The SMT712 is also rated for protection against EFT up to 40A (5/50ns). Optimized EMI Layout The MAXM22510/MAXM22511 EV kit has been designed for easy evaluation and is not optimized for EMI performance/evaluation. See the Design Resources tab on the MAXM22510/MAXM22511 web page for more information about best design practices for optimum EMI performance. Loopback Configuration The MAXM22510/MAXM22511 features one drive channel and one receive channel. Driver outputs are Y and Z and receiver inputs are A and B. To configure the device for loopback testing, close J7 and J8 to connect B to Z and A to Y, respectively. www.maximintegrated.com Maxim Integrated │  2 Evaluates: MAXM22510/MAXM22511 MAXM22510/MAXM22511 Evaluation Kit Table 1. Jumper Table (J2–J8) JUMPER SHUNT POSITION J2 J3 J4 1-2 RE is high. The RS-485 receiver is disabled. 2-3* RE is low. The RS-485 receiver is enabled. 1-2 SD is high. The MAXM22510/MAXM22511 is in shutdown mode. 2-3* SD is low. The MAXM22510/MAXM22511 is not in shutdown mode. 1-2* DE is high. The RS-485 driver outputs are enabled. 2-3 DE is low. The RS-485 driver outputs are disabled. Open J5 Closed* Open J6 Closed* J7 J8 DESCRIPTION Y and Z are not connected through the on-board 120Ω termination resistor. Y and Z are connected through the on-board 120Ω termination resistor. A and B are not connected through the on-board 120Ω termination resistor. A and B are connected through the on-board 120Ω termination resistor. Open* B is not connected to Z. Closed B is connected to Z. Open* A is not connected to Y. Closed A is connected to Y. *Default position. Ordering Information PART TYPE MAXM22510EVKIT# EV Kit MAXM22511EVKIT# EV Kit #Denotes RoHS compliant. www.maximintegrated.com Maxim Integrated │  3 Evaluates: MAXM22510/MAXM22511 MAXM22510/MAXM22511 Evaluation Kit MAXM22510/MAXM22511 EV Kit Bill of Materials ITEM REF_DES DNI/DNP QTY MFG PART # MANUFACTURER VALUE 1 C7 - 1 EEE-HA1A470WR PANASONIC 47UF 2 J2-J4 3 J5-J8 - 3 PCC03SAAN 4 PEC02SAAN SULLINS SULLINS PCC03SAAN PEC02SAAN 4 J9 - 1 5 J10, J11 6 R2, R3 - 2 142-0701-851 2 CRCW0603120RJN 1935200 PHOENIX CONTACT JOHNSON COMPONENTS VISHAY DALE 1935200 142-0701-851 120 7 TP1, TP2, TP3, TP13-TP16 - 7 5014 N/A 5014 8 TP4, TP7, TP8, TP10, TP11 - 5 5011 N/A 5011 9 TP6, TP9, TP12 5010 KEYSTONE N/A MAXM22510GLH+ OR MAXM22511GLH+ - 3 10 U1 - 1 MAXM22510GLH+ OR MAXM22511GLH+ 11 U2, U3 12 PCB - 13 C1, C4, C6 DNP SM712.TCT 2 SM712.TCT SEMTECH PCB 1 MAXM22510/MAXM22511 MAXIM GRM188R71E105KA12;CGA3E1X7R1E105K;TM K107B7105KA;06033C105KAT2A;GCM188R71E 0 105KA64 MURATA;TDK;TAIYO YUDEN;AVX;MURATA 1UF 14 C2, C3, C5 15 C10 16 C11 DNP DNP DNP 0 C1608X7R1E104K080AA 0 VJ2220Y332KXUSTX1 0 GA352QR7GF102KW01 17 18 19 20 21 TOTAL J1 R1, R5 R4 R6 R7, R9, R10, R12 DNP DNP DNP DNP DNP 0 0 0 0 0 32 www.maximintegrated.com PBC08SAAN CRCW060349R9FK CRCW12100000Z0 CRCW060310K0FK;ERJ-3EKF1002 CRCW06031K00FK;ERJ-3EKF1001 MAXIM TDK VISHAY VITRAMON MURATA 0.1UF 3300PF 1000PF SULLINS ELECTRONICS CORP. VISHAY DALE VISHAY DALE VISHAY DALE;PANASONIC VISHAY DALE;PANASONIC PBC08SAAN 10K 1K DESCRIPTION CAPACITOR; SMT (CASE_C); ALUMINUM-ELECTROLYTIC; 47UF; 10V; TOL=20%; MODEL=HA SERIES; TG=-40 DEGC to +105 DEGC; TC= CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT THROUGH; 3PINS; 65 DEGC TO +125 DEGC CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT; 2PINS CONNECTOR; FEMALE; THROUGH HOLE; GREEN TERMINAL BLOCK; STRAIGHT; 6PINS CONNECTOR; END LAUNCH JACK RECEPTACLE; BOARDMOUNT; STRAIGHT THROUGH; 2PINS; RESISTOR; 0603; 120 OHM; 5%; 200PPM; 0.10W; THICK FILM TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.445IN; BOARD HOLE=0.063IN; YELLOW; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH; 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; RED; PHOSPHOR BRONZE WIRE SIL; IC; TXRXMOD; 2.5KVRMS COMPLETE ISOLATED RS-485/RS-422 MODULE TRANSCEIVER + POWER; LGA44 IC; PROT; ASYMMETRICAL TVS DIODE FOR EXTENDED COMMON-MODE RS-485; SOT23-3 PCB:MAXM22510/MAXM22511 CAPACITOR; SMT (0603); CERAMIC CHIP; 1UF; 25V; TOL=10%; TG=-55 DEGC TO +125 DEGC; TC=X7R CAPACITOR; SMT (0603); CERAMIC CHIP; 0.1UF; 25V; TOL=10%; MODEL=C SERIES; TG=-55 DEGC TO +125 DEGC; TC=X7R CAP; SMT (2220); 3300PF; 10%; 250V; X7R; CERAMIC CHIP CAP; SMT (2211); 1000PF; 10%; 250V; X7R; CERAMIC CHIP CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT; 8PINS; -65 DEGC TO +125 DEGC 49.9 RESISTOR; 0603; 49.9 OHM; 1%; 100PPM; 0.10W; THICK FILM 0 RESISTOR; 1210; 0 OHM; 0%; JUMPER; 0.5W; THICK FILM RESISTOR; 0603; 10K; 1%; 100PPM; 0.10W; THICK FILM RESISTOR; 0603; 1K; 1%; 100PPM; 0.10W; THICK FILM Maxim Integrated │  4 1 2 3 4 5 6 7 8 1 J10 142-0701-851 1 TXD RXD SD /SBA RXD REB DE TXD J4 J3 J2 2 R1 VDDA DNI TP3 VDDA 2 2 DE SD TXD REB DNI R5 RXD TP2 VDDA /SBA TP1 DNI 10K R6 VDDA TP6 C1 DNI VDDA TP8 TP7 VDDA DNI C2 1 + 2 VDDA J11 142-0701-851 J1 DNI 2 4 3 5 2 4 3 5 1 3 1 3 1 3 C7 47UF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 GNDB GNDB GNDB GNDB GNDA GNDA GNDA GNDA R4 GNDB GNDA DNI GNDB GNDA DNI C11 DNI VLDO DE TP4 VRECT SD Z Y GNDB TXD RXD RE VDDB A SBA B I.C. VDDB GNDA VDDA GNDB GNDA NC GNDB GNDA NC GNDB GNDA NC GNDB GNDA NC GNDB GNDA C10 MAXM22510GLH+ MAXM22511GLH+ U1 TP11 TP10 TP9 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 VRECT VDDB DNI C3 A B DNI C4 VDDB Y Z TP12 TP16 TP15 TP14 TP13 VRECT 3 R2 120 J5 2 2 REVISION - B DATE - 01/2019 1 3 SM712.TCT U3 R12 DNI R10 DNI VDDB 2 2 R3 120 J6 MAXM22510EVKIT_B MAXM22511EVKIT_B 1 DNI C6 PROJECT TITLE: R9 DNI R7 VDDB 1 DNI 1 SM712.TCT U2 DNI C5 3 www.maximintegrated.com 3 J7 J8 6 5 4 3 2 1 J9 MAXM22510/MAXM22511 Evaluation Kit Evaluates: MAXM22510/MAXM22511 MAXM22510/MAXM22511 EV Kit Schematic Maxim Integrated │  5 MAXM22510/MAXM22511 Evaluation Kit Evaluates: MAXM22510/MAXM22511 MAXM22510/MAXM22511 EV Kit PCB Layout Diagrams MAXM22510/MAXM22511 EV Kit—Top Silkscreen MAXM22510/MAXM22511 EV Kit—Top MAXM22510/MAXM22511 EV Kit—Bottom MAXM22510/MAXM22511 EV Kit—Bottom Silkscreen www.maximintegrated.com Maxim Integrated │  6 MAXM22510/MAXM22511 Evaluation Kit Evaluates: MAXM22510/MAXM22511 Revision History REVISION NUMBER REVISION DATE PAGES CHANGED 0 8/18 Initial release 1 1/19 Update the Title on all pages to add MAXM22510 and to all sections where MAXM22511 is also mentioned; updated Table 1, the Bill of Materials, Schematic, PCB Layout, and added MAXM22510EVKIT# to the Ordering Information table DESCRIPTION — 1–7 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2019 Maxim Integrated Products, Inc. │  7