Datasheet ADL5725 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | 17.7 GHz to 19.7 GHz, Low Noise Amplifier |
| Pages / Page | 12 / 10 — ADL5725. Data Sheet. EVALUATION BOARD. RESULTS. INITIAL SETUP. 20 … |
| File Format / Size | PDF / 332 Kb |
| Document Language | English |
ADL5725. Data Sheet. EVALUATION BOARD. RESULTS. INITIAL SETUP. 20 RESOLUTION BANDWIDTH = 20kHz. VIDEO BANDWIDTH = 20kHz
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ADL5725 Data Sheet EVALUATION BOARD
The ADL5725-EVALZ comes with an ADL5725 chip. It supports
RESULTS
a single 5 V supply for ease of use. For 5 V operation, use the Figure 18 shows the expected results when testing the 3.3 V and 1.8 V test loops for evaluation purposes only. When ADL5725-EVALZ using the Rev. A version of the evaluation using a 3.3 V or 1.8 V supply, remove the R1 and R2 resistors board and its software. Note that future iterations of the software from the evaluation board. Figure 19 shows the ADL5725- may produce different results. See the ADL5725 product page EVALZ evaluation board lab bench setup. for the most recent software version.
INITIAL SETUP
Figure 18 shows the results of the differential output for an input To set up the ADL5725-EVALZ, take the following steps: of 17.7 GHz at −15 dBm. The hybrid and board loss were not 1. Power up the ADL5725-EVALZ with a 5 V dc supply. The deembedded. supply current of the evaluation board is approximately
20 RESOLUTION BANDWIDTH = 20kHz VIDEO BANDWIDTH = 20kHz 1
111 mA, which is a combination of the VCC1 (1.8 V) and
10 SWEEP = 301ms (1001pts)
the VCC2 (3.3 V) currents.
0
2. Connect the signal generator to the input of the ADL5725-
–10
EVALZ.
Bm) (d –20
3. Connect RFOP and RFON to a 180° hybrid that works
UT P
within the 17.7 GHz to 19.7 GHz frequency range.
UT –30
4. Connect the difference output of the hybrid to the
R O E –40
spectrum analyzer. The sum port of hybrid must be
W O P –50
terminated to 50 Ω.
–60
See Figure 19 for the ADL5725-EVALZ lab bench setup.
–70
1
–80
-02
17.65 17.66 17.67 17.68 17.69 17.70 17.71 17.72 17.73 17.74 17.75
318
FREQUENCY (GHz)
14 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
20 0 8- 31 14 Figure 19. ADL5725-EVALZ Lab Bench Setup Rev. 0 | Page 10 of 12 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS AC SPECIFICATIONS DC SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION LAYOUT DIFFERENTIAL vs. SINGLE-ENDED OUTPUT EVALUATION BOARD INITIAL SETUP RESULTS BASIC CONNECTIONS FOR OPERATION OUTLINE DIMENSIONS ORDERING GUIDE
ADL5725 Data Sheet EVALUATION BOARD
The ADL5725-EVALZ comes with an ADL5725 chip. It supports
RESULTS
a single 5 V supply for ease of use. For 5 V operation, use the Figure 18 shows the expected results when testing the 3.3 V and 1.8 V test loops for evaluation purposes only. When ADL5725-EVALZ using the Rev. A version of the evaluation using a 3.3 V or 1.8 V supply, remove the R1 and R2 resistors board and its software. Note that future iterations of the software from the evaluation board. Figure 19 shows the ADL5725- may produce different results. See the ADL5725 product page EVALZ evaluation board lab bench setup. for the most recent software version.
INITIAL SETUP
Figure 18 shows the results of the differential output for an input To set up the ADL5725-EVALZ, take the following steps: of 17.7 GHz at −15 dBm. The hybrid and board loss were not 1. Power up the ADL5725-EVALZ with a 5 V dc supply. The deembedded. supply current of the evaluation board is approximately
20 RESOLUTION BANDWIDTH = 20kHz VIDEO BANDWIDTH = 20kHz 1
111 mA, which is a combination of the VCC1 (1.8 V) and
10 SWEEP = 301ms (1001pts)
the VCC2 (3.3 V) currents.
0
2. Connect the signal generator to the input of the ADL5725-
–10
EVALZ.
Bm) (d –20
3. Connect RFOP and RFON to a 180° hybrid that works
UT P
within the 17.7 GHz to 19.7 GHz frequency range.
UT –30
4. Connect the difference output of the hybrid to the
R O E –40
spectrum analyzer. The sum port of hybrid must be
W O P –50
terminated to 50 Ω.
–60
See Figure 19 for the ADL5725-EVALZ lab bench setup.
–70
1
–80
-02
17.65 17.66 17.67 17.68 17.69 17.70 17.71 17.72 17.73 17.74 17.75
318
FREQUENCY (GHz)
14 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
20 0 8- 31 14 Figure 19. ADL5725-EVALZ Lab Bench Setup Rev. 0 | Page 10 of 12 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS AC SPECIFICATIONS DC SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION LAYOUT DIFFERENTIAL vs. SINGLE-ENDED OUTPUT EVALUATION BOARD INITIAL SETUP RESULTS BASIC CONNECTIONS FOR OPERATION OUTLINE DIMENSIONS ORDERING GUIDE
