THS4541RGTEVM

User's Guide SLOU392 – July 2014 THS4541RGT EVM User's Guide The THS4541RGT EVM is an evaluation module for the single THS4541 amplifier in the RGT package. This evaluation module is designed to quickly and easily demonstrate the functionality and versatility of the amplifier. The EVM is ready to connect to power, signal source, and test instruments through the use of onboard connectors. The EVM comes configured for easy connection with common 50-Ω laboratory equipment on its inputs and outputs. The amplifier is configured for single-ended input with gain of 2 V/V to differential output at the device pins, which is converted to single-ended via a transformer to the output. It can be easily configured for other functions, gains, and single- or split-supply operation. The THS4541RGT EVM has an on board load for the amplifier of 500 Ω. The output transformer and resistor network converts this to a 50 Ω single ended output. 1 2 3 4 5 1 Contents Features ....................................................................................................................... EVM Specifications .......................................................................................................... Power Connections .......................................................................................................... 3.1 Split-Supply Operation ............................................................................................. 3.2 Single-Supply Operation ........................................................................................... Input and Output Connections ............................................................................................. 4.1 Vocm Input Conections ............................................................................................ 4.2 PD Input Connections .............................................................................................. 4.3 Using the Optional Differential Otputs (J8, J9) .................................................................. THS4541RGT EVM Schematic, Layout, and Bill of Materials ......................................................... 5.1 Schematic ............................................................................................................ 5.2 THS4541RGT EVM Layers ........................................................................................ 5.3 Bill of Materials ...................................................................................................... Glossary ....................................................................................................................... 1 1 2 2 2 2 2 3 3 4 4 5 9 9 List of Figures 1 THS4541RGT EVM Schematic ............................................................................................ 4 2 THS4541RGT EVM Top Layer, Signal 3 THS4541RGT EVM Layer 2, Ground ..................................................................................... 6 4 THS4541RGT EVM Layer 3, Power 5 THS4541RGT EVM Bottom Layer ......................................................................................... 8 ................................................................................... ...................................................................................... 5 7 List of Tables 1 1 Features • • • • 2 THS4541RGT EVM Bill of Materials ...................................................................................... 9 Configured for split-supply operation and easily modified for single supply Default gain of 2 configuration can easily be reconfigured for other gains Designed for easy connection to standard 50-Ω input/output impedance test equipment Inputs and outputs include SMA connectors EVM Specifications SLOU392 – July 2014 Submit Documentation Feedback THS4541RGT EVM User's Guide Copyright © 2014, Texas Instruments Incorporated 1 Power Connections Single-supply voltage range (VS– = ground) 2.7 to 5.4 V VS± Split-supply voltage range ±1.35 to ±2.7 V IS± Supply current (no load) 10 mA Input voltage VS±, Max Output drive ±100 mA IOUT 3 www.ti.com Power Connections The THS4541RGT EVM is equipped with banana jacks for easy connection of power. The positive supply input is red and is labeled VS+. The negative supply input is green and is labeled VS–. Ground is black and is labeled GND. 3.1 Split-Supply Operation To operate as split supply, apply the positive supply voltage to VS+, negative supply voltage to VS– , and the ground reference from supply to GND. 3.2 Single-Supply Operation To operate as single supply, connect the VS– connector and the GND connector both to ground, and apply the positive supply voltage to VS+. Inputs and outputs must be biased per data-sheet specifications for proper operation. The THS4541 output common mode voltage will default to mid supply if the Vocm connector is left floating. Make sure that R12 is not installed if the default Vocm is desired. 4 Input and Output Connections The THS4541RGT EVM is equipped with SMA connectors for easy connection of signal generators and analysis equipment. As shipped, the EVM is configured for a gain of 2, split supply, single-ended input and output with 50-Ω termination. For best results, signals must be routed to and from the EVM with cables having 50-Ω characteristic impedance. Either VIN+ (J1) or VIN-(J2) can be used for the input. The unused connector should be terminated with a 50 Ohm resistive SMA load. If no SMA load is available the spaces marked C12 or C13 can be loaded with a 0-Ω resistor to terminate the unused input. VOUT+ (J10) is the output connector for single-ended output signals. The amplifier converts the single-ended input to a differential signal at its output pins. A resistor network (R13, R14, R15) and transformer on the amplifier's output convert the differential signal to single-ended, and provides 500-Ω load to the amplifier when terminated in 50 Ω. A 50-Ω line impedance match at VOUT+ should be preserved. This results in an output measurement loss, and the overall gain is approximately –20 dB. See the following THS4541 data-sheet applications section, schematics, and layouts for more detail and how to reconfigure the EVM. 4.1 Vocm Input Conections The Vocm input (J7) is optional. This input will set the common mode of the output pins. The THS4541 will automatically self bias the output pins to the mid supply voltage if the Vocm pin is not connected. This is the optimal voltage for maximum output swing and best linearity. It's valid range is 0.9V above the negative supply to 1.2V below the positive supply. For example, on a ±2.5V split supply the Vocm pin can be set anywhere from -1.6V to 1.3V. With a single 5V supply the valid range would be 0.9V to 3.8V. One thing to keep in mind is that the outputs of the THS4541 can swing from rail to rail, however the maximum output swing available will be reduced when the Vocm pin is set to a voltage other than mid supply . The resistor R12 is used only when it is desired to provide a load for the Vocm input signal source. It should not be used otherwise. The board is shipped with R12 unpopulated. 2 THS4541RGT EVM User's Guide SLOU392 – July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Input and Output Connections www.ti.com 4.2 PD Input Connections The PD connector (J6) allows the THS4541 to be disabled. A signal for the power down function can be applied through the SMA connector for high speed testing. Normally the jumper JP1 is used to enable or disable (Power Down) the amplifier. When the shorting block is connected to Vs+ the amplifier is NOT Powered Down, so it is enabled. When the shorting block is connected to Vs- the amplifier is powered down. For high speed testing the resistor R9 is provided to terminate the PD SMA. If R9 is installed the shorting block should be removed from JP1. Because R9 terminates to the ground and not to the supplies the state of the amplifier will be undefined when the signal source is disconnected. For this reason R9 should only be used when driving the SMA connector with a high speed, controlled impedance source. 4.3 Using the Optional Differential Otputs (J8, J9) The THS4541RGT EVM can be reconfigured for fully differential outputs. By removing resistors R13 and R14 the balun circuit is disconnected from the amplifier output. If 50-Ω resistors are loaded in the R16 and R17 resistor positions the J8 and J9 connectors can be used for fully differential output signals. If 50-Ω test equipment is connected to J8 and J9 the total load to the amplifier is 200 Ohms. The datasheet specifications were produced with a 500-Ω load. In order to match a 500-Ω load, R16 and R17 should be loaded with 221-Ω resistors, and then 60.4-Ω resistors need to be soldered to ground on the SMA side of the output transmission line. There are no spaces for these resistors, so the green solder mask must be scraped from the transmission line and the ground layer in order to make a space to solder these resistors. The resistors should be soldered near the "R" for R16 and near the "7" for R17. Placement is not critical but it should be close to the THS4541 outputs instead of near the SMA connectors SLOU392 – July 2014 Submit Documentation Feedback THS4541RGT EVM User's Guide Copyright © 2014, Texas Instruments Incorporated 3 THS4541RGT EVM Schematic, Layout, and Bill of Materials www.ti.com 5 THS4541RGT EVM Schematic, Layout, and Bill of Materials 5.1 Schematic J3 J4 Vs- Vs+ GREEN J5 RED FB1 GND FB2 BLK 120 OHM @ 100MHz 120 OHM @ 100MHz VsC7 .1uF C9 0.1uF C3 10uF Vs+ C1 10uF C2 10uF C4 10uF 0 1 C14 0.1uF C6 .1uF C8 .1uF PD JP1 1 2 3 1 END SMA J6 5 4 3 2 C5 .1uF C10 R10 10K Vs- R11 10K Vs+ TP2 GND TP3 GND SHUNT 2-3 0.1uF R9 J1 DNI C12 1 SMA R23 49.9 END J8 1 R16 S R7 1 17 DNI R27 5 2 4 3 DNI R2 R28 DNI DNI R4 R5 402 R6 402 R22 DNI R8 DNI 0 R25 60.4 191 R31 DNI C15 1 2 3 4 PAD FBVIN+ VINFB+ THS4541RGT 4 3 2 5 DNI T2 R13 6 237 P S R18 1 J10 SMA END PD VOUTVOUT+ Vocm 12 11 10 9 R15 56 R14 R29 5 2 4 3 R30 DNI DNI J11 R19 237 J9 Vs+ DNI 1 R17 DNI DNI 1 SMA END WBC1-1TL SMA R20 R20 POPULATED WITH 0.1uF CAP .1uF END 4 3 2 5 J2 SMA R21 16 15 14 13 U1 191 VSVSVSVS- P DNI VS+ VS+ VS+ VS+ T1 6 R1 SMA END Vs- 4 3 2 5 R26 60.4 0 5 6 7 8 R3 4 3 2 5 4 3 2 5 DNI 1 C13 R24 49.9 4 3 2 5 END DNI R12 Vocm J7 SMA 1 END DNI C11 4 3 2 5 0.1uF TP1 Vocm Z_STANDOFF SCREW1 Z_STANDOFF SCREW2 Z_STANDOFF SCREW3 Z_STANDOFF SCREW4 1 1 PANHEAD SCREW 4-40 x 3/8 Z_STANDOFF1 PANHEAD SCREW 4-40 x 3/8 Z_STANDOFF2 PANHEAD SCREW 4-40 x 3/8 Z_STANDOFF3 PANHEAD SCREW 4-40 x 3/8 Z_STANDOFF4 1 1 STANDOFF ALUM HEX 4-40 x .750STANDOFF ALUM HEX 4-40 x .750STANDOFF ALUM HEX 4-40 x .750STANDOFF ALUM HEX 4-40 x .750 Figure 1. THS4541RGT EVM Schematic 4 THS4541RGT EVM User's Guide SLOU392 – July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated THS4541RGT EVM Schematic, Layout, and Bill of Materials www.ti.com 5.2 THS4541RGT EVM Layers Figure 2. THS4541RGT EVM Top Layer, Signal SLOU392 – July 2014 Submit Documentation Feedback THS4541RGT EVM User's Guide Copyright © 2014, Texas Instruments Incorporated 5 THS4541RGT EVM Schematic, Layout, and Bill of Materials www.ti.com Figure 3. THS4541RGT EVM Layer 2, Ground 6 THS4541RGT EVM User's Guide SLOU392 – July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated www.ti.com THS4541RGT EVM Schematic, Layout, and Bill of Materials Figure 4. THS4541RGT EVM Layer 3, Power SLOU392 – July 2014 Submit Documentation Feedback THS4541RGT EVM User's Guide Copyright © 2014, Texas Instruments Incorporated 7 THS4541RGT EVM Schematic, Layout, and Bill of Materials www.ti.com Figure 5. THS4541RGT EVM Bottom Layer 8 THS4541RGT EVM User's Guide SLOU392 – July 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated THS4541RGT EVM Schematic, Layout, and Bill of Materials www.ti.com 5.3 Bill of Materials Table 1. THS4541RGT EVM Bill of Materials Ite m Manufacturer Quantit y Part Reference Value Part Number Footprint 1 2 Kemet 4 C1, C2, C3, C4 10uF C0805C106K8RACTU 0805 MURATA 4 C5, C6, C7, C8 .1uF GRM155R61A104KA01D 0402 3 AVX 2 C9, C14 0.1uF 08055C104KAT2A 0805 4 AVX 2 C10, C11 0.1uF 0603YC104KAT2A 0603 5 MURATA 3 C12, C13, C15 .1uF GRM155R61A104KA01D_ DNI 0402 6 MURATA 2 FB1, FB2 BLM31PG121SN1 1206 7 Johnson Components 8 J1, J2, J6, J7, J8, J9, J10, J11 142-0701-801 SMA_SMEL_373x312 8 SPC Technology 1 J3 GREEN 845-G CON_THVT_BANANA_JACK _250DIA 9 SPC Technology 1 J4 RED 845-R CON_THVT_BANANA_JACK _250DIA 10 SPC Technology 1 J5 BLK 845-B CON_THVT_BANANA_JACK _250DIA 11 SAMTEC 1 JP1 HEADER_1x3_ 100_430L HMTSW-103-07-G-S-.240 HDR_THVT_1x3_100_M MTG125_PTH 12 120 OHM @ 100MHz SMA_END_JAC K_RND Note DNI SHUNT 2-3 4 MTG1, MTG2, MTG3, MTG4 13 PANASONIC 8 R1, R2, R21, R22, R27, R28, R30, R31 14 PANASONIC 3 R3, R4, R18 15 PANASONIC 2 R5, R6 16 PANASONIC 2 R7, R8 191 17 PANASONIC 1 R9 18 PANASONIC 2 R10, R11 10K ERJ-3EKF1002V 0603 19 PANASONIC 1 R12 49.9 ERJ-3EKF49R9V_DNI 0603 20 PANASONIC 2 R13. R14 237 ERJ-2RKF2370X 0402 21 PANASONIC 1 R15 56 ERJ-2RKF56R0X 0402 22 PANASONIC 4 R16, R17, R18, R19 49.9 ERJ-2RKF49R9X_DNI 0402 DNI 23 MURATA 1 R20 .1uF GRM155R61A104KA01D 0402 CAP PLACE FOR R20 24 PANASONIC 2 R23, R24 49.9 ERJ-2RKF49R9X 0402 25 PANASONIC 2 R25, R26 60.4 ERJ-2RKF60R4X 0402 26 Coilcraft 1 T1 WBC1-1TL WBC1-1TL_DNI XFMR_6_165X175_60 27 Coilcraft 1 T2 WBC1-1TL WBC1-1TL XFMR_6_165X175_60 28 Keystone 1 TP1 TP_THVT_060_ RND-RED 5000 TP_THVT_060_RND 29 Keystone 2 TP2, TP3 TP_THVT_060_ RND-BLK 5001 TP_THVT_060_RND 30 Texas Instruments 1 U1 THS4541RGT QFN_16_124x124_pwrpad 31 Keltron 1 Z_SHUNT-H1 32 Building Fasteners 4 Z_STANDOFF SCREW1Z_STANDOFF SCREW4 33 Keystone 4 Z_STANDOFF1-Z_STANDOFF4 1 MTG125_PTH 0 ERJ-2GE0R00X_DNI 0402 0 ERJ-2GE0R00X 0402 402 ERJ-2RKF4020X 0402 ERJ-2RKF1910X 0402 Res_0603_Zero _H_DNI THS4541RGT SHUNTHEADER 0603 DNI DNI DNI DNI MJ-5.97-G or equivalent SHUNT FOR HEADER PANHEAD SCREW 4-40 x 3/8 PMS 440 0038 PH SCREW FOR STANDOFF STANDOFF ALUM HEX 440 x .750 2204 STANDOFF Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. SLOU392 – July 2014 Submit Documentation Feedback THS4541RGT EVM User's Guide Copyright © 2014, Texas Instruments Incorporated 9 ADDITIONAL TERMS AND CONDITIONS, WARNINGS, RESTRICTIONS, AND DISCLAIMERS FOR EVALUATION MODULES Texas Instruments Incorporated (TI) markets, sells, and loans all evaluation boards, kits, and/or modules (EVMs) pursuant to, and user expressly acknowledges, represents, and agrees, and takes sole responsibility and risk with respect to, the following: 1. User agrees and acknowledges that EVMs are intended to be handled and used for feasibility evaluation only in laboratory and/or development environments. Notwithstanding the foregoing, in certain instances, TI makes certain EVMs available to users that do not handle and use EVMs solely for feasibility evaluation only in laboratory and/or development environments, but may use EVMs in a hobbyist environment. All EVMs made available to hobbyist users are FCC certified, as applicable. Hobbyist users acknowledge, agree, and shall comply with all applicable terms, conditions, warnings, and restrictions in this document and are subject to the disclaimer and indemnity provisions included in this document. 2. Unless otherwise indicated, EVMs are not finished products and not intended for consumer use. EVMs are intended solely for use by technically qualified electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components, systems, and subsystems. 3. User agrees that EVMs shall not be used as, or incorporated into, all or any part of a finished product. 4. User agrees and acknowledges that certain EVMs may not be designed or manufactured by TI. 5. User must read the user's guide and all other documentation accompanying EVMs, including without limitation any warning or restriction notices, prior to handling and/or using EVMs. Such notices contain important safety information related to, for example, temperatures and voltages. For additional information on TI's environmental and/or safety programs, please visit www.ti.com/esh or contact TI. 6. User assumes all responsibility, obligation, and any corresponding liability for proper and safe handling and use of EVMs. 7. Should any EVM not meet the specifications indicated in the user’s guide or other documentation accompanying such EVM, the EVM may be returned to TI within 30 days from the date of delivery for a full refund. THE FOREGOING LIMITED WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY TI TO USER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. TI SHALL NOT BE LIABLE TO USER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES RELATED TO THE HANDLING OR USE OF ANY EVM. 8. No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, or combination in which EVMs might be or are used. TI currently deals with a variety of customers, and therefore TI’s arrangement with the user is not exclusive. TI assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or services with respect to the handling or use of EVMs. 9. User assumes sole responsibility to determine whether EVMs may be subject to any applicable federal, state, or local laws and regulatory requirements (including but not limited to U.S. Food and Drug Administration regulations, if applicable) related to its handling and use of EVMs and, if applicable, compliance in all respects with such laws and regulations. 10. 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User shall operate EVMs within TI’s recommended specifications and environmental considerations per the user’s guide, accompanying documentation, and any other applicable requirements. Exceeding the specified ratings (including but not limited to input and output voltage, current, power, and environmental ranges) for EVMs may cause property damage, personal injury or death. If there are questions concerning these ratings, user should contact a TI field representative prior to connecting interface electronics including input power and intended loads. Any loads applied outside of the specified output range may result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or interface electronics. Please consult the applicable EVM user's guide prior to connecting any load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative. During normal operation, some circuit components may have case temperatures greater than 60°C as long as the input and output are maintained at a normal ambient operating temperature. These components include but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors which can be identified using EVMs’ schematics located in the applicable EVM user's guide. When placing measurement probes near EVMs during normal operation, please be aware that EVMs may become very warm. As with all electronic evaluation tools, only qualified personnel knowledgeable in electronic measurement and diagnostics normally found in development environments should use EVMs. Agreement to Defend, Indemnify and Hold Harmless. User agrees to defend, indemnify, and hold TI, its directors, officers, employees, agents, representatives, affiliates, licensors and their representatives harmless from and against any and all claims, damages, losses, expenses, costs and liabilities (collectively, "Claims") arising out of, or in connection with, any handling and/or use of EVMs. User’s indemnity shall apply whether Claims arise under law of tort or contract or any other legal theory, and even if EVMs fail to perform as described or expected. Safety-Critical or Life-Critical Applications. If user intends to use EVMs in evaluations of safety critical applications (such as life support), and a failure of a TI product considered for purchase by user for use in user’s product would reasonably be expected to cause severe personal injury or death such as devices which are classified as FDA Class III or similar classification, then user must specifically notify TI of such intent and enter into a separate Assurance and Indemnity Agreement. RADIO FREQUENCY REGULATORY COMPLIANCE INFORMATION FOR EVALUATION MODULES Texas Instruments Incorporated (TI) evaluation boards, kits, and/or modules (EVMs) and/or accompanying hardware that is marketed, sold, or loaned to users may or may not be subject to radio frequency regulations in specific countries. General Statement for EVMs Not Including a Radio For EVMs not including a radio and not subject to the U.S. Federal Communications Commission (FCC) or Industry Canada (IC) regulations, TI intends EVMs to be used only for engineering development, demonstration, or evaluation purposes. EVMs are not finished products typically fit for general consumer use. EVMs may nonetheless generate, use, or radiate radio frequency energy, but have not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or the ICES-003 rules. Operation of such EVMs may cause interference with radio communications, in which case the user at his own expense will be required to take whatever measures may be required to correct this interference. 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U.S. Federal Communications Commission Compliance For EVMs Annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant Caution This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications could void the user's authority to operate the equipment. FCC Interference Statement for Class A EVM devices This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at its own expense. FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Industry Canada Compliance (English) For EVMs Annotated as IC – INDUSTRY CANADA Compliant: This Class A or B digital apparatus complies with Canadian ICES-003. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Concerning EVMs Including Radio Transmitters This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Concerning EVMs Including Detachable Antennas Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Canada Industry Canada Compliance (French) Cet appareil numérique de la classe A ou B est conforme à la norme NMB-003 du Canada Les changements ou les modifications pas expressément approuvés par la partie responsable de la conformité ont pu vider l’autorité de l'utilisateur pour actionner l'équipement. Concernant les EVMs avec appareils radio Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur. 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Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for Enforcement of Radio Law of Japan, Use EVMs only after user obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to EVMs, or Use of EVMs only after user obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to EVMs. Also, do not transfer EVMs, unless user gives the same notice above to the transferee. 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