2024年2月25日发(作者：祭碧琳)

现货库存、技术资料、百科信息、热点资讯，精彩尽在鼎好!19-3552; Rev 0; 2/05MAX2056 Evaluation KitGeneral DescriptionFeaturesThe MAX2056 evaluation kit (EV kit) simplifies evalua-tion of the MAX2056 general-purpose, high-perfor-♦Analog Gain Controlmance, variable-gain amplifier with analog gain control.♦Up to 44dB Gain-Control RangeThe EV kit is fully assembled and tested at the rd 50ΩSMA connectors are included at the♦800MHz to 1000MHz Frequency Rangeinput and output of the EV kit to allow quick and easy♦Fully Assembled and Testedevaluation on the test bench.♦Input and Output Internally Matched to 50ΩOverThis data sheet provides a list of equipment required toevaluate the device, a straightforward test procedure toEntire Band Of Operationverify functionality, a circuit schematic for the kit, a bill♦50ΩSMA Inputs and Outputs for Easy Testing ofof materials (BOM) for the kit, and artwork for eachAll MAX2056 Featureslayer of the PC ent SuppliersOrdering InformationSUPPLIERPHONEWEBSITEPARTTEMP RANGEIC 2056EVKIT-40°C to +85°C36 Thin QFN-EP**EP = Exposed ent ListDESIGNATIONQTYDESCRIPTIONDESIGNATIONQTYDESCRIPTIONC1, C3, C5,47pF ±5%, 50V C0G ceramicR213.92kΩ ±1% resistor (0402)C104capacitors (0402)R3, R420Ω resistors (0402)Murata GRP1555C1H470JLarge test point for 0.062in PCC2, C4, C6,1000pF ±10%, 50V X7R ceramicTP11board (red)C8, C95capacitors (0402)Mouser 151-107 or equivalentMurata GRP155R71H102KLarge test point for 0.062in PC3.9pF ±0.1pF, 50V C0G ceramicTP21board (black)C71capacitor (0402)Mouser 151-103 or equivalentMurata GRP1555C1H3R9BAnalog VGA ICC11, C12, C160Not installed (0603)(36-pin, 6mm x 6mm thin QFN-EP)Maxim MAX2056ETX0.1µF ±10%, 16V X7R ceramicNOTE: U1 HAS AN EXPOSEDC13, C14, C153capacitors (0603)Murata GRM188R71C104KU11PADDLE CONDUCTOR THATREQUIRES IT TO BE SOLDERC170Not installed (0402)ATTACHED TO A GROUNDED PADON THE PC BOARD TO ENSURE APC board edge-mount SMA RFconnectors (flat-tab launch)PROPER ELECTRICAL/THERMALJ1–n 142-0741-856R111.2kΩ ±1% resistor (0402)________________________________________________________________Maxim Integrated Products1For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at

1-888-629-4642, or visit Maxim’s website at tes: MAX2056

MAX2056 Evaluation KitEvaluates:

MAX2056

Quick StartThe MAX2056 EV kit is fully assembled and factory the instructions in the Connections and Setupsection for proper device evaluation.2)With its supply output disabled, set the voltage on theother DC supply to 1V and connect to the gain-controlconnector VCNTL (J3) on the EV kit. If available, setthe current limit to 1mA.3)With the generator output disabled, connect the RFsignal generator to J1. Set the generator to a900MHz output frequency, and set the power levelto -13dBm.4)Connect the spectrum analyzer to J2. Set the spec-trum analyzer to a center frequency of 900MHz anda total span of 1MHz. Set the reference level on thespectrum analyzer to +10dBm.5)Enable the VCCsupply. Next, enable the gain-controlsupply. Finally, enable the RF generator’s output. A900MHz signal with a magnitude of approximately3dBm should be displayed on the spectrum sure to account for external cable losses.6)Vary the gain-control supply voltage between +1.0Vand +4.5V. The output power should vary byapproximately 22dB.7)Gain can also be determined with a network has the advantage of displaying gain over aswept frequency band, in addition to displayinginput and output return loss. Refer to the networkanalyzer manufacturer’s user manual for setupdetails (optional).Test Equipment••••••One DC power supply capable of supplying 5V

and 0.3AOne DC power supply that can be adjusted from 1Vto 4.5V for gain controlTwo digital multimeters (DMM) to monitor VCCandICC, if desiredHP 8648 (or equivalent) signal sourceHP 8561E (or equivalent) spectrum analyzerHP 8753D (or equivalent) network analyzer to mea-sure return loss and gain over frequency (optional)Connections and SetupThis section provides a step-by-step guide to testingthe basic functionality of the EV kit. To prevent damag-ing the device, do not turn on DC power or RF signalgenerators until all connections are made. Do notapply VCNTL without VCCpresent (see the VCNTLsection).1)2)Testing the Supply CurrentConnect 50Ωterminations to J1 and its output disabled, set the voltage on one ofthe DC supplies to +5.0V (through a low internalresistance ammeter, if desired) and connect to the+5.0V (TP1) and GND (TP2) terminals on the EV the power supply has a current-limiting feature,set the current limit to its output disabled, set the voltage on the sec-ond DC supply to 1V and connect to the gain-controlconnector VCNTL (J3) on the EV kit. This configuresthe device for its maximum gain setting. If the powersupply has a current-limiting feature, set the currentlimit to the VCCsupply, then enable the gain-controlsupply; the VCCsupply current should read approxi-mately ed DescriptionFigure 1 shows the schematic for the MAX2056 EV kit.C1, C3, C5, and C7 are DC-blocking capacitors for theIN_A, IN, AMP_IN, and OUT pins. To reduce the possi-bility of noise pickup from the power supply, capacitorsC2, C4, C6, C8, C9, C10, C13, C14, and C15 are usedto decouple VCC. Resistors R1 and R2 are used to biasthe amplifier’s first and second stages, respectively.3)Current-Setting ResistorsThe MAX2056 amplifier section is a two-stage designwhose input stage current is set by the external resistorR1, while the output stage current is set by resistor resistors were optimized at the factory to pro-duce the highest OIP3 for a given current. The currentof the device can be reduced by increasing theseresistor values (see the Modifying the EV Kitsection),but linearity performance degrades.4)Testing the Power Gain1)With its supply output disabled, set the voltage on oneof the DC supplies to +5.0V (through a low internalresistance ammeter, if desired) and connect to the+5.0V (TP1) and GND (TP2) terminals on the EV kit. Ifavailable, set the current limit to 200mA.2_______________________________________________________________________________________

MAX2056 Evaluation KitVCNTLConfiguration C) To use only the attenuator between ICThe VCNTL pin is used to control the gain of the amplifi-pins 35 and 29: Move capacitor C5 to connect the pin 29er. The nominal operating range for the VCNTL pin istrace of the IC to the trace of connector J5. Apply the RFfrom 1V to 4.5V. Limiting VCNTL to this range ensuresinput signal to SMA J1 and take the output signal fromreliability of the to on-chip ESD diodes, doSMA apply VCNTL without VCC(+5V) present. If this con-dition is unavoidable, then change R4 on the EV kit to aConfiguration D) To use only the amplifier: Move capaci-resistor no smaller than 200Ω. This resistor will limit thetor C5 to connect the pin 26 trace of the IC to the trace ofcurrent into the VCNTL pin for cases where Vconnector J5. Apply the RF input signal to SMA J5 andgrounded or left ke the output signal from SMA ing the EV KitConfiguration E) To insert a function between one attenu-ator and an output amplifier, configure the board for bothIncreasing the value of the external current-settingconfiguration B and D. Insert the desired functionresistors, R1 (first amp stage) and R2 (second ampbetween SMA connectors J1 and J5. Apply the input sig-stage), can reduce the current draw of the amplifiernal to SMA J4 and take the output signal from SMA n of the device. Doubling the values of each ofthese external resistors cuts the DC current drainLayout Considerationsapproximately in half but at the expense of approxi-The MAX2056 evaluation boards can be used as amately 5.4dB lower OIP3. Since the linearity of theguide for board layout. Pay close attention to thermalamplifier is set by the cascaded performance of the twodesign and placement of components on the PC ier stages, one must be careful to balance theThe exposed paddle (EP) on the MAX2056 packagecurrent distribution of the two stages to optimize OIP3conducts heat away from the die and provides a low-at the lowest nce electrical connection. The EP mustbeThe MAX2056 EV kit has been designed and assembledattached to the PC board ground plane with a low ther-to add the flexibility of measuring the device in differentmal and electrical impedance contact. Ideally, this isconfigurations. The kit has been assembled to cascadeprovided by soldering the backside package contactone attenuator section followed by the output ly to a metal ground plane on the PC other configurations can be set as atively, the EP can be connected to a groundplane using an array of plated vias directly below theConfiguration A) To use two attenuators followed by anEP. The MAX2056 EV kit uses nine evenly spaced,output amplifier: Move capacitor C3 on the EV kit to con-0.016in-diameter, plated through holes to connect thenect pin 2 trace to pin 35 trace of the IC. Apply the RFEP to the lower ground signal to SMA J4 and take the output signal fromSMA uration B) To use only the attenuator between ICpins 2 and 8: Move capacitor C3 to connect the pin 2trace of the IC to the trace of connector J1. Apply the RFinput signal to SMA J4 and take the output signal fromSMA J1._______________________________________________________________________________________3Evaluates: MAX2056

MAX2056 Evaluation KitEvaluates:

MAX2056

RF_INJ1*SEE THE MODIFYING THE EV KIT SECTION FOR CONNECTION CONFIGURATIONS.+5VC5*47pFC41000pFC12OPENC3*47pFJ5GNDC3*47pFGND136IN35GND34GND33VCC32GND31GND30ATTN_OUT29GND28GNDC5*47pFC5*47pF27OUT_A226AMP_IN+5VGND325VCCC61000pFC130.1µFGND+5VVCCC11OPENC21000pFGND4U1524GNDMAX2056EXPOSEDPADDLE23GND622GNDGNDC147pF721GNDC73.9pFC17OPENJ4IN_A820OUTJ2RF_OUTGND919GND10R40ΩGND11VCNTL12GND13VCC14GND15RSET1R11.2kΩ16VCC17RSET2R23.92kΩ18GNDJ3VCNTLC16OPENC1047pF+5VGNDR30ΩC150.1µFC91000pFC81000pF+5VTP2TP1C140.1µFFigure 1. MAX2056 EV Kit Schematic4_______________________________________________________________________________________

MAX2056 Evaluation Kit1.0"1.0"Figure 2. MAX2056 EV Kit PC Board Layout—Top SilkscreenFigure 3. MAX2056 EV Kit PC Board Layout—Top Soldermask1.0"1.0"Figure 4. MAX2056 EV Kit PC Board Layout—Top Layer MetalFigure 5. MAX2056 EV Kit PC Board Layout—Inner Layer 2 (GND)_______________________________________________________________________________________5Evaluates: MAX2056

MAX2056 Evaluation KitEvaluates:

MAX20561.0"Figure 6. MAX2056 EV Kit PC Board Layout—Inner Layer 3(Routing)1.0"Figure 7. MAX2056 EV Kit PC Board Layout—Bottom LayerMetal1.0"Figure 8. MAX2056 EV Kit PC Board Layout—Bottom Soldermask1.0"Figure 9. MAX2056 EV Kit PC Board Layout—Bottom SilkscreenMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses areimplied. Maxim reserves the right to change the circuitry and specifications without notice at any time.6_____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©2005 Maxim Integrated Products Printed USAis a registered trademark of Maxim Integrated Products, Inc.

2024年2月25日发(作者：祭碧琳)

现货库存、技术资料、百科信息、热点资讯，精彩尽在鼎好!19-3552; Rev 0; 2/05MAX2056 Evaluation KitGeneral DescriptionFeaturesThe MAX2056 evaluation kit (EV kit) simplifies evalua-tion of the MAX2056 general-purpose, high-perfor-♦Analog Gain Controlmance, variable-gain amplifier with analog gain control.♦Up to 44dB Gain-Control RangeThe EV kit is fully assembled and tested at the rd 50ΩSMA connectors are included at the♦800MHz to 1000MHz Frequency Rangeinput and output of the EV kit to allow quick and easy♦Fully Assembled and Testedevaluation on the test bench.♦Input and Output Internally Matched to 50ΩOverThis data sheet provides a list of equipment required toevaluate the device, a straightforward test procedure toEntire Band Of Operationverify functionality, a circuit schematic for the kit, a bill♦50ΩSMA Inputs and Outputs for Easy Testing ofof materials (BOM) for the kit, and artwork for eachAll MAX2056 Featureslayer of the PC ent SuppliersOrdering InformationSUPPLIERPHONEWEBSITEPARTTEMP RANGEIC 2056EVKIT-40°C to +85°C36 Thin QFN-EP**EP = Exposed ent ListDESIGNATIONQTYDESCRIPTIONDESIGNATIONQTYDESCRIPTIONC1, C3, C5,47pF ±5%, 50V C0G ceramicR213.92kΩ ±1% resistor (0402)C104capacitors (0402)R3, R420Ω resistors (0402)Murata GRP1555C1H470JLarge test point for 0.062in PCC2, C4, C6,1000pF ±10%, 50V X7R ceramicTP11board (red)C8, C95capacitors (0402)Mouser 151-107 or equivalentMurata GRP155R71H102KLarge test point for 0.062in PC3.9pF ±0.1pF, 50V C0G ceramicTP21board (black)C71capacitor (0402)Mouser 151-103 or equivalentMurata GRP1555C1H3R9BAnalog VGA ICC11, C12, C160Not installed (0603)(36-pin, 6mm x 6mm thin QFN-EP)Maxim MAX2056ETX0.1µF ±10%, 16V X7R ceramicNOTE: U1 HAS AN EXPOSEDC13, C14, C153capacitors (0603)Murata GRM188R71C104KU11PADDLE CONDUCTOR THATREQUIRES IT TO BE SOLDERC170Not installed (0402)ATTACHED TO A GROUNDED PADON THE PC BOARD TO ENSURE APC board edge-mount SMA RFconnectors (flat-tab launch)PROPER ELECTRICAL/THERMALJ1–n 142-0741-856R111.2kΩ ±1% resistor (0402)________________________________________________________________Maxim Integrated Products1For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at

1-888-629-4642, or visit Maxim’s website at tes: MAX2056

MAX2056 Evaluation KitEvaluates:

MAX2056

Quick StartThe MAX2056 EV kit is fully assembled and factory the instructions in the Connections and Setupsection for proper device evaluation.2)With its supply output disabled, set the voltage on theother DC supply to 1V and connect to the gain-controlconnector VCNTL (J3) on the EV kit. If available, setthe current limit to 1mA.3)With the generator output disabled, connect the RFsignal generator to J1. Set the generator to a900MHz output frequency, and set the power levelto -13dBm.4)Connect the spectrum analyzer to J2. Set the spec-trum analyzer to a center frequency of 900MHz anda total span of 1MHz. Set the reference level on thespectrum analyzer to +10dBm.5)Enable the VCCsupply. Next, enable the gain-controlsupply. Finally, enable the RF generator’s output. A900MHz signal with a magnitude of approximately3dBm should be displayed on the spectrum sure to account for external cable losses.6)Vary the gain-control supply voltage between +1.0Vand +4.5V. The output power should vary byapproximately 22dB.7)Gain can also be determined with a network has the advantage of displaying gain over aswept frequency band, in addition to displayinginput and output return loss. Refer to the networkanalyzer manufacturer’s user manual for setupdetails (optional).Test Equipment••••••One DC power supply capable of supplying 5V

and 0.3AOne DC power supply that can be adjusted from 1Vto 4.5V for gain controlTwo digital multimeters (DMM) to monitor VCCandICC, if desiredHP 8648 (or equivalent) signal sourceHP 8561E (or equivalent) spectrum analyzerHP 8753D (or equivalent) network analyzer to mea-sure return loss and gain over frequency (optional)Connections and SetupThis section provides a step-by-step guide to testingthe basic functionality of the EV kit. To prevent damag-ing the device, do not turn on DC power or RF signalgenerators until all connections are made. Do notapply VCNTL without VCCpresent (see the VCNTLsection).1)2)Testing the Supply CurrentConnect 50Ωterminations to J1 and its output disabled, set the voltage on one ofthe DC supplies to +5.0V (through a low internalresistance ammeter, if desired) and connect to the+5.0V (TP1) and GND (TP2) terminals on the EV the power supply has a current-limiting feature,set the current limit to its output disabled, set the voltage on the sec-ond DC supply to 1V and connect to the gain-controlconnector VCNTL (J3) on the EV kit. This configuresthe device for its maximum gain setting. If the powersupply has a current-limiting feature, set the currentlimit to the VCCsupply, then enable the gain-controlsupply; the VCCsupply current should read approxi-mately ed DescriptionFigure 1 shows the schematic for the MAX2056 EV kit.C1, C3, C5, and C7 are DC-blocking capacitors for theIN_A, IN, AMP_IN, and OUT pins. To reduce the possi-bility of noise pickup from the power supply, capacitorsC2, C4, C6, C8, C9, C10, C13, C14, and C15 are usedto decouple VCC. Resistors R1 and R2 are used to biasthe amplifier’s first and second stages, respectively.3)Current-Setting ResistorsThe MAX2056 amplifier section is a two-stage designwhose input stage current is set by the external resistorR1, while the output stage current is set by resistor resistors were optimized at the factory to pro-duce the highest OIP3 for a given current. The currentof the device can be reduced by increasing theseresistor values (see the Modifying the EV Kitsection),but linearity performance degrades.4)Testing the Power Gain1)With its supply output disabled, set the voltage on oneof the DC supplies to +5.0V (through a low internalresistance ammeter, if desired) and connect to the+5.0V (TP1) and GND (TP2) terminals on the EV kit. Ifavailable, set the current limit to 200mA.2_______________________________________________________________________________________

MAX2056 Evaluation KitVCNTLConfiguration C) To use only the attenuator between ICThe VCNTL pin is used to control the gain of the amplifi-pins 35 and 29: Move capacitor C5 to connect the pin 29er. The nominal operating range for the VCNTL pin istrace of the IC to the trace of connector J5. Apply the RFfrom 1V to 4.5V. Limiting VCNTL to this range ensuresinput signal to SMA J1 and take the output signal fromreliability of the to on-chip ESD diodes, doSMA apply VCNTL without VCC(+5V) present. If this con-dition is unavoidable, then change R4 on the EV kit to aConfiguration D) To use only the amplifier: Move capaci-resistor no smaller than 200Ω. This resistor will limit thetor C5 to connect the pin 26 trace of the IC to the trace ofcurrent into the VCNTL pin for cases where Vconnector J5. Apply the RF input signal to SMA J5 andgrounded or left ke the output signal from SMA ing the EV KitConfiguration E) To insert a function between one attenu-ator and an output amplifier, configure the board for bothIncreasing the value of the external current-settingconfiguration B and D. Insert the desired functionresistors, R1 (first amp stage) and R2 (second ampbetween SMA connectors J1 and J5. Apply the input sig-stage), can reduce the current draw of the amplifiernal to SMA J4 and take the output signal from SMA n of the device. Doubling the values of each ofthese external resistors cuts the DC current drainLayout Considerationsapproximately in half but at the expense of approxi-The MAX2056 evaluation boards can be used as amately 5.4dB lower OIP3. Since the linearity of theguide for board layout. Pay close attention to thermalamplifier is set by the cascaded performance of the twodesign and placement of components on the PC ier stages, one must be careful to balance theThe exposed paddle (EP) on the MAX2056 packagecurrent distribution of the two stages to optimize OIP3conducts heat away from the die and provides a low-at the lowest nce electrical connection. The EP mustbeThe MAX2056 EV kit has been designed and assembledattached to the PC board ground plane with a low ther-to add the flexibility of measuring the device in differentmal and electrical impedance contact. Ideally, this isconfigurations. The kit has been assembled to cascadeprovided by soldering the backside package contactone attenuator section followed by the output ly to a metal ground plane on the PC other configurations can be set as atively, the EP can be connected to a groundplane using an array of plated vias directly below theConfiguration A) To use two attenuators followed by anEP. The MAX2056 EV kit uses nine evenly spaced,output amplifier: Move capacitor C3 on the EV kit to con-0.016in-diameter, plated through holes to connect thenect pin 2 trace to pin 35 trace of the IC. Apply the RFEP to the lower ground signal to SMA J4 and take the output signal fromSMA uration B) To use only the attenuator between ICpins 2 and 8: Move capacitor C3 to connect the pin 2trace of the IC to the trace of connector J1. Apply the RFinput signal to SMA J4 and take the output signal fromSMA J1._______________________________________________________________________________________3Evaluates: MAX2056

MAX2056 Evaluation KitEvaluates:

MAX2056

RF_INJ1*SEE THE MODIFYING THE EV KIT SECTION FOR CONNECTION CONFIGURATIONS.+5VC5*47pFC41000pFC12OPENC3*47pFJ5GNDC3*47pFGND136IN35GND34GND33VCC32GND31GND30ATTN_OUT29GND28GNDC5*47pFC5*47pF27OUT_A226AMP_IN+5VGND325VCCC61000pFC130.1µFGND+5VVCCC11OPENC21000pFGND4U1524GNDMAX2056EXPOSEDPADDLE23GND622GNDGNDC147pF721GNDC73.9pFC17OPENJ4IN_A820OUTJ2RF_OUTGND919GND10R40ΩGND11VCNTL12GND13VCC14GND15RSET1R11.2kΩ16VCC17RSET2R23.92kΩ18GNDJ3VCNTLC16OPENC1047pF+5VGNDR30ΩC150.1µFC91000pFC81000pF+5VTP2TP1C140.1µFFigure 1. MAX2056 EV Kit Schematic4_______________________________________________________________________________________

MAX2056 Evaluation Kit1.0"1.0"Figure 2. MAX2056 EV Kit PC Board Layout—Top SilkscreenFigure 3. MAX2056 EV Kit PC Board Layout—Top Soldermask1.0"1.0"Figure 4. MAX2056 EV Kit PC Board Layout—Top Layer MetalFigure 5. MAX2056 EV Kit PC Board Layout—Inner Layer 2 (GND)_______________________________________________________________________________________5Evaluates: MAX2056

MAX2056 Evaluation KitEvaluates:

MAX20561.0"Figure 6. MAX2056 EV Kit PC Board Layout—Inner Layer 3(Routing)1.0"Figure 7. MAX2056 EV Kit PC Board Layout—Bottom LayerMetal1.0"Figure 8. MAX2056 EV Kit PC Board Layout—Bottom Soldermask1.0"Figure 9. MAX2056 EV Kit PC Board Layout—Bottom SilkscreenMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses areimplied. Maxim reserves the right to change the circuitry and specifications without notice at any time.6_____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©2005 Maxim Integrated Products Printed USAis a registered trademark of Maxim Integrated Products, Inc.