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ADL5725-EVALZ

ADL5725-EVALZ

  • 厂商:

    AD(亚德诺)

  • 封装:

    -

  • 描述:

    EVALUATIONBOARDFORADL5725

  • 数据手册
  • 价格&库存
ADL5725-EVALZ 数据手册
FEATURES FUNCTIONAL BLOCK DIAGRAM Frequency range: 17.7 GHz to 19.7 GHz Typical gain of >25.1 dB Low noise input Noise figure: 2.4 dB typical High linearity input >−1.5 dBm typical input third-order intercept (IIP3) −11.5 dBm input 1 dB compression point (P1dB) at 19.7 GHz Matched 50 Ω single-ended input Matched 100 Ω differential outputs 8-lead, 2.00 mm × 2.00 mm LFCSP microwave packaging VCC1 ADL5725 VCC2 OUTN 50Ω GND SINGLE-ENDED INPT OUTP RBIAS 100Ω DIFFERENTIAL DNC DNC = DO NOT CONNECT. DO NOT CONNECT TO THIS PIN. 14318-001 Data Sheet 17.7 GHz to 19.7 GHz, Low Noise Amplifier ADL5725 Figure 1. APPLICATIONS Point to point microwave radios Instrumentation Satellite communications (SATCOM) Phased arrays GENERAL DESCRIPTION The ADL5725 is a narrow-band, high performance, low noise amplifier (LNA) targeting microwave radio link receiver designs. The monolithic silicon germanium (SiGe) design is optimized for microwave radio link bands ranging from 17.7 GHz to 19.7 GHz. The unique design offers a single-ended 50 Ω input impedance and provides a 100 Ω balanced differential output that is ideal for driving Analog Devices, Inc., differential downconverters and radio frequency (RF) sampling analog-to-digital converters (ADCs). Rev. 0 This low noise amplifier provides noise figure performance that, in the past, required more expensive three-five (III-V) compounds process technology to achieve. The ADL5721 and ADL5723 to ADL5726 family of narrow-band LNAs are each packaged in a tiny, thermally enhanced, 2.00 mm × 2 mm LFCSP package. The ADL5721 and ADL5723 to ADL5726 family operates over the temperature range of −40°C to +85°C. Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, 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 subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2016 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com ADL5725 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Typical Performance Characteristics ..............................................6 Applications ....................................................................................... 1 Theory of Operation .........................................................................8 Functional Block Diagram .............................................................. 1 Applications Information .................................................................9 General Description ......................................................................... 1 Layout .............................................................................................9 Revision History ............................................................................... 2 Differential vs. Single-Ended Output .........................................9 Specifications..................................................................................... 3 Evaluation Board ............................................................................ 10 AC Specifications.......................................................................... 3 Initial Setup ................................................................................. 10 DC Specifications ......................................................................... 3 Results .......................................................................................... 10 Absolute Maximum Ratings ............................................................ 4 Basic Connections for Operation ............................................. 11 Thermal Resistance ...................................................................... 4 Outline Dimensions ....................................................................... 12 ESD Caution .................................................................................. 4 Ordering Guide .......................................................................... 12 Pin Configuration and Function Descriptions ............................. 5 REVISION HISTORY 4/16—Revision 0: Initial Version Rev. 0 | Page 2 of 12 Data Sheet ADL5725 SPECIFICATIONS AC SPECIFICATIONS VCC1 = 1.8 V, VCC2 = 3.3 V, RBIAS = 357 Ω, T = 25°C, ZSOURCE = 50 Ω, ZLOAD = 100 Ω differential, unless otherwise noted. Table 1. Parameter FREQUENCY RANGE FREQUENCY = 17.7 GHz Gain (S21) Noise Figure Input Third-Order Intercept (IIP3) Input 1 dB Compression Point (P1dB) Input Return Loss (S11) Output Return Loss (S22) FREQUENCY = 19.7 GHz Gain (S21) Noise Figure Input Third-Order Intercept (IIP3) Input 1 dB Compression Point (P1dB) Input Return Loss (S11) Output Return Loss (S22) Test Conditions/Comments Min 17.7 Δf = 1 MHz, input power (PIN) = −30 dBm per tone Δf = 1 MHz, PIN = −30 dBm per tone Typ Max 19.7 Unit GHz 27.8 2.4 −1.5 −14 7 8 dB dB dBm dBm dB dB 25.1 2.4 2.0 −11.5 10 10 dB dB dBm dBm dB dB DC SPECIFICATIONS Table 2. Parameter POWER INTERFACE Voltage VCC1 VCC2 Quiescent Current vs. Temperature VCC1 VCC2 Test Conditions/Comments TA = 25°C −40°C ≤ TA ≤ +85°C TA = 25°C −40°C ≤ TA ≤ +85°C Rev. 0 | Page 3 of 12 Min Typ Max Unit 1.65 3.1 1.8 3.3 1.95 3.5 V V 18 19 88 89 mA mA mA mA ADL5725 Data Sheet ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE Table 3. Parameter Supply Voltages VCC1 VCC2 Maximum Junction Temperature Operating Temperature Range Storage Temperature Range Lead Temperature Range (Soldering, 60 sec) Rating 2.25 V 4.1 V 150°C −40°C to +85°C −55°C to +125°C −65°C to +150°C Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability. θJA is thermal resistance, junction to ambient (°C/W), θJB is thermal resistance, junction to board (°C/W), and θJC is thermal resistance, junction to case (°C/W). Table 4. Thermal Resistance Package Type 8-Lead LFCSP 1 θJA1 39.90 θJB1 23.88 θJC1 3.71 Unit °C/W See JEDEC standard JESD51-2 for additional information on optimizing the thermal impedance for a printed circuit board (PCB) with 3 × 4 vias. ESD CAUTION Rev. 0 | Page 4 of 12 Data Sheet ADL5725 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS VCC1 1 INPT 3 RBIAS 4 8 VCC2 ADL5725 TOP VIEW (Not to Scale) 7 OUTN 6 OUTP 5 DNC NOTES 1. DNC = DO NOT CONNECT. DO NOT CONNECT TO THIS PIN. 2. THE EXPOSED PAD MUST BE SOLDERED TO A LOW IMPEDANCE GROUND PLANE. 3. THE DEVICE NUMBER ON THE FIGURE DOES NOT INDICATE THE LABEL ON THE PACKAGE. REFER TO THE PIN 1 INDICATOR FOR THE PIN LOCATIONS. 14318-002 GND 2 Figure 2. Pin Configuration Table 5. Pin Function Descriptions Pin No. 1 2 3 4 Mnemonic VCC1 GND INPT RBIAS 5 6, 7 8 DNC OUTP, OUTN VCC2 EPAD (EP) Description 1.8 V Power Supply. It is recommended to place the decoupling capacitors as close to this pin as possible. Ground. RF Input. This is a 50 Ω single-ended input. Resistor Bias. For typical operation, connect a 357 Ω resistor from RBIAS to GND. It is recommended to place the RBIAS resistor as close to the pin as possible. Do Not Connect. Do not connect to this pin. RF Outputs. These pins are 100 Ω differential outputs. 3.3 V Power Supply. It is recommended to place the decoupling capacitors as close to this pin as possible. Exposed Pad. The exposed pad must be soldered to a low impedance ground plane. Rev. 0 | Page 5 of 12 ADL5725 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 10 35 9 30 3.1V/1.65V 3.3V/1.8V 3.5V/1.95V 8 NOSIE FIGURE (dB) GAIN (dB) 25 20 15 10 7 6 5 4 3 2 17.9 18.1 1 18.3 18.5 18.7 18.9 19.1 19.3 19.5 19.7 FREQUENCY (GHz) 0 17.7 18.5 18.7 18.9 19.1 19.3 19.5 19.7 15 10 TA = –40°C TA = +25°C TA = +85°C 5 INPUT P1dB (dBm) 25 20 15 10 0 –5 –10 –15 5 –20 17.9 18.1 18.3 18.5 18.7 18.9 19.1 19.3 19.5 19.7 FREQUENCY (GHz) –25 17.7 14318-004 0 17.7 9 18.1 18.3 18.5 18.7 18.9 19.1 19.3 19.5 19.7 FREQUENCY (GHz) Figure 4. Gain vs. Frequency for Various Supply Voltages 10 17.9 14318-007 GAIN (dB) 18.3 Figure 6. Noise Figure vs. Frequency for Various Supply Voltages 3.1V/1.65V 3.3V/1.8V 3.5V/1.95V 30 18.1 FREQUENCY (GHz) Figure 3. Gain vs. Frequency for Various Temperatures 35 17.9 14318-006 0 17.7 TA = –40°C TA = +25°C TA = +85°C 14318-003 5 Figure 7. Input P1dB vs Frequency for Various Temperatures 15 TA = –40°C TA = +25°C TA = +85°C 10 3.1V/1.65V 3.3V/1.8V 3.5V/1.95V 8 INPUT P1dB (dBm) 6 5 4 0 –5 –10 3 –15 2 0 17.7 17.9 18.1 18.3 18.5 18.7 18.9 19.1 19.3 19.5 19.7 FREQUENCY (GHz) –25 17.7 17.9 18.1 18.3 18.5 18.7 18.9 19.1 19.3 19.5 19.7 FREQUENCY (GHz) Figure 8. Input P1dB vs. Frequency for Various Supply Voltages Figure 5. Nosie Figure vs. Frequency for Various Temperatures Rev. 0 | Page 6 of 12 14318-008 –20 1 14318-005 NOISE FIGURE (dB) 5 7 Data Sheet 10 0 TA = –40°C TA = +25°C TA = +85°C –5 INPUT RETURN LOSS (dB) 15 ADL5725 INPUT IP3 (dBm) 5 0 –5 –10 –15 TA = –40°C TA = +25°C TA = +85°C –10 –15 –20 –25 17.9 18.1 18.3 18.5 18.7 18.9 19.1 19.3 19.5 19.7 FREQUENCY (GHz) –30 17.7 14318-009 –25 17.7 10 18.1 18.3 18.5 18.7 18.9 19.1 19.3 19.5 19.7 FREQUENCY (GHz) Figure 9. Input IP3 vs. Frequency for Various Temperatures 15 17.9 14318-011 –20 Figure 11. Input Return Loss vs. Frequency for Various Temperatures 0 3.1V/1.65V 3.3V/1.8V 3.5V/1.95V TA = –40°C TA = +25°C TA = +85°C OUTPUT RETURN LOSS (dB) –5 0 –5 –10 –15 –10 –15 –20 –25 –25 17.7 17.9 18.1 18.3 18.5 18.7 18.9 19.1 19.3 19.5 19.7 FREQUENCY (GHz) Figure 10. Input IP3 vs. Frequency for Various Supply Voltages –30 17.7 17.9 18.1 18.3 18.5 18.7 18.9 FREQUENCY (GHz) 19.1 19.3 19.5 19.7 14318-012 –20 14318-010 INPUT IP3 (dB) 5 Figure 12. Output Return Loss vs. Frequency for Various Temperatures Rev. 0 | Page 7 of 12 ADL5725 Data Sheet THEORY OF OPERATION The ADL5725 is a narrow-band, high performance, low noise amplifier targeting microwave radio link receiver designs. The monolithic SiGe design is optimized for microwave radio link bands ranging from 17.7 GHz to 19.7 GHz. The unique design of the ADL5725 offers a single-ended 50 Ω input impedance via the INPT pin, and provides a 100 Ω balanced differential output via the OUTP and OUTN pins. This LNA is ideal for driving Analog Devices differential downconverters and RF sampling ADCs. The ADL5725 provides cost-effective noise figure performance without requiring more expensive III-V compounds process technology. The ADL5725 is available in a 2.00 mm × 2.00 mm LFCSP package, and operates over the temperature range of −40°C to +85°C. Rev. 0 | Page 8 of 12 Data Sheet ADL5725 APPLICATIONS INFORMATION 10 LAYOUT 9 8 NOISE FIGURE (dB) Solder the exposed pad on the underside of the ADL5725 to a low thermal and electrical impedance ground plane. This pad is typically soldered to an exposed opening in the solder mask on the evaluation board. Connect the ground vias to all other ground layers on the evaluation board to maximize heat dissipation from the device package. 7 6 5 4 3 2 18.1 18.3 18.5 18.7 18.9 19.1 19.3 19.5 19.7 14318-016 17.9 19.5 19.7 14318-019 0 17.7 19.5 19.7 14318-018 1 FREQUENCY (GHz) Figure 15. Noise Figure vs. Frequency 14318-014 15 10 5 DIFFERENTIAL vs. SINGLE-ENDED OUTPUT This section provides the test results that compare the ADL5725 using a differential vs. single-ended output. When using the device as a single-ended output, use the RFOP output of the evaluation board and terminate RFON to 50 Ω. Note that the converse can be done as well; however, doing so produces slightly different results from the plots shown in this section because there is some amplitude imbalance between the two differential ports, RFOP and RFON. The output trace and connector loss were not deembedded for these measurements. INPUT IP3 (dBm) Figure 13. Evaluation Board Layout for the ADL5725 Package –5 –10 –15 –20 –25 17.7 18.1 18.3 18.5 18.7 18.9 19.1 19.3 Figure 16. Input IP3 vs. Frequency 35 15 30 10 5 INPUT P1dB (dBm) 20 15 10 0 –5 –10 –15 5 –20 17.9 18.1 18.3 18.5 18.7 18.9 19.1 FREQUENCY (GHz) 19.3 19.5 19.7 –25 17.7 14318-015 0 17.7 17.9 FREQUENCY (GHz) 25 GAIN (dB) 0 17.9 18.1 18.3 18.5 18.7 18.9 19.1 19.3 FREQUENCY (GHz) Figure 17. Input P1dB vs. Frequency Figure 14. Gain vs. Frequency Rev. 0 | Page 9 of 12 ADL5725 Data Sheet EVALUATION BOARD The ADL5725-EVALZ comes with an ADL5725 chip. It supports a single 5 V supply for ease of use. For 5 V operation, use the 3.3 V and 1.8 V test loops for evaluation purposes only. When using a 3.3 V or 1.8 V supply, remove the R1 and R2 resistors from the evaluation board. Figure 19 shows the ADL5725EVALZ evaluation board lab bench setup. RESULTS INITIAL SETUP Figure 18 shows the results of the differential output for an input of 17.7 GHz at −15 dBm. The hybrid and board loss were not deembedded. Figure 18 shows the expected results when testing the ADL5725-EVALZ using the Rev. A version of the evaluation board and its software. Note that future iterations of the software may produce different results. See the ADL5725 product page for the most recent software version. To set up the ADL5725-EVALZ, take the following steps: 4. RESOLUTION BANDWIDTH = 20kHz VIDEO BANDWIDTH = 20kHz 10 SWEEP = 301ms (1001pts) 1 0 –10 –20 –30 –40 –50 –60 See Figure 19 for the ADL5725-EVALZ lab bench setup. –70 –80 17.65 17.66 17.67 17.68 17.69 17.70 17.71 17.72 17.73 17.74 17.75 FREQUENCY (GHz) Figure 18. Test Results at 17.7 GHz +5V DC GND RFON SPECTRUM ANALYZER INPUT RFOP RF FREQUENCY GENERATOR 180° HYBRID FOR DIFFERENTIAL TO SINGLE ENDED OUTPUT Figure 19. ADL5725-EVALZ Lab Bench Setup Rev. 0 | Page 10 of 12 14318-021 3. 20 14318-020 2. Power up the ADL5725-EVALZ with a 5 V dc supply. The supply current of the evaluation board is approximately 111 mA, which is a combination of the VCC1 (1.8 V) and the VCC2 (3.3 V) currents. Connect the signal generator to the input of the ADL5725EVALZ. Connect RFOP and RFON to a 180° hybrid that works within the 17.7 GHz to 19.7 GHz frequency range. Connect the difference output of the hybrid to the spectrum analyzer. The sum port of hybrid must be terminated to 50 Ω. POWER OUTPUT (dBm) 1. Data Sheet ADL5725 BASIC CONNECTIONS FOR OPERATION Figure 20 shows the basic connections for operating the ADL5725 as it is implemented on the evaluation board of the device. 3.3V 1.8V C5 0.1UF C1 4.7NF C2 33PF C3 33PF C4 4.7NF C6 0.1UF AGND AGND AGND AGND AGND AGND OUTN 1 572X_RFON 25-146-1000-92 4 3 2 CNSRI2516100092_SW109201A5 DUTA RFIN 25-146-1000-92 CNSRI2516100092_SW109201A5 1 1 VCC1 2 GND 3 INPT 4 RBIAS RFIN 2 3 4 AGND AGND 8 VCC2 7 OUTN 6 OUTP 5 DNC AGND PAD PAD ADL5725 RBIAS 357 OUTP AGND 1.8V AGND 572X_RFOP 25-146-1000-92 4 3 2 CNSRI2516100092_SW109201A5 AGND R4 10K DNI R3 1 1 1 2 0 AGND U1 0 C7 4.7UF AGND 1 VOUT 2 VOUT VIN VIN EN SS SENSE EP GND PAD 6 3P3V RED 1 1P8V RED 1 GND BLK 5V 3.3V 1.8V AGND 69157-102HLF 5V 8 7 5 4 3 C9 4.7UF AGND C8 1000PF AGND 3.3V R2 0 C10 4.7UF AGND ADM7172ACPZ-3.3 1 VOUT1 VIN1 2 VOUT2 VIN2 EN SS SENSE EP GND PAD 6 5V 8 7 5 4 3 C12 4.7UF AGND C11 1000PF AGND AGND AGND 14318-013 R1 1 U2 ADM7170ACPZ-1.8 1.8V 5V RED P1 Figure 20. Evaluation Board Schematic Table 6. Evaluation Board Configuration Options Component 3P3V, 1P8V, GND, 5V RFIN, 572X_RFOP, 572x_RFON RBIAS R1, R2 R3 R4 C1 to C12 Function Power supplies and ground. Input, output, and data. 357 Ω for RBIAS. 1.8 V and 3.3 V regulator connections. Do not install (DNI). Pull-up or pull-down resistor. The capacitors provide the required decoupling for the supply related pins. P1 U1 U2 DUTA Jumper to change bands, 2-pin jumper. ADM7170ACPZ-1.8 1.8 V regulator. ADM7172ACPZ-3.3 3.3 V regulator. ADL5725 device under test (DUT). Rev. 0 | Page 11 of 12 Default Condition Not applicable Not applicable RBIAS = 357 Ω (0402) R1, R2 = 0 Ω (0402) R3 = DNI (0402) R4 = 10 kΩ (0402) C1,C4 = 4.7 nF (0402), C2, C3 = 33 pF (0402), C5, C6 = 0.1 µF (0402), C7, C9, C10, C12 = 4.7 µF (0603), C8, C11 = 1000 pF (0603) Not applicable Not applicable Not applicable Not applicable ADL5725 Data Sheet OUTLINE DIMENSIONS 1.70 1.60 1.50 2.10 2.00 SQ 1.90 0.50 BSC 8 5 1.10 1.00 0.90 EXPOSED PAD 0.425 0.350 0.275 1 4 TOP VIEW 0.60 0.55 0.50 BOTTOM VIEW 0.05 MAX 0.02 NOM SEATING PLANE 0.30 0.25 0.20 PIN 1 INDICATOR (R 0.15) FOR PROPER CONNECTION OF THE EXPOSED PAD, REFER TO THE PIN CONFIGURATION AND FUNCTION DESCRIPTIONS SECTION OF THIS DATA SHEET. 0.20 REF 01-14-2013-C PIN 1 INDEX AREA 0.15 REF Figure 21. 8-Lead Lead Frame Chip Scale Package [LFCSP] 2.00 mm × 2.00 mm Body, and 0.55 mm Package Height (CP-8-10) Dimensions shown in millimeters ORDERING GUIDE Model 1 ADL5725ACPZN-R7 ADL5725-EVALZ 1 Temperature Range −40°C to +85°C Package Description 8-Lead Lead Frame Chip Scale Package [LFCSP] Evaluation Board Z = RoHS-Compliant Part. ©2016 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D14318-0-4/16(0) Rev. 0 | Page 12 of 12 Package Option CP-8-10
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