link to page 10 link to page 10 link to page 10 link to page 10 ADL5723Data SheetEVALUATION BOARD The ADL5723-EVALZ comes with an ADL5723 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 ADL5723-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 ADL5723- may produce different results. See the ADL5723 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 ADL5723-EVALZ, take the following steps: of 10.1 GHz at −15 dBm. The hybrid and board loss have not 1. Power up the ADL5723-EVALZ with a 5 V dc supply. The been deembedded. supply current of the evaluation board is approximately 20 RESOLUTION BANDWIDTH = 20kHzVIDEO BANDWIDTH = 20kHz 111 mA, which is a combination of the VCC1 (1.8 V) and 101SWEEP = 301ms (1001pts) the VCC2 (3.3 V) currents. 0 2. Connect the signal generator to the input of the ADL5723- –10 EVALZ. Bm) d ( –20 3. Connect RFOP and RFON to a 180° hybrid that works UT P within the 10.1 GHz to 11.7 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 the hybrid must be W O P –50 terminated to 50 Ω. –60 See Figure 19 for the ADL5723-EVALZ lab bench setup. –70 3 –80 01 6- 10.95 10.96 10.97 10.98 10.99 10.10 10.11 10.12 10.13 10.14 10.15 31 14 FREQUENCY (GHz) Figure 18. Test Results at 10.1 GHz +5V DCGNDRFONSPECTRUMANALYZERINPUTRFOPRF FREQUENCY GENERATOR180° HYBRID FOR DIFFERENTIAL 014 6- TO SINGLE ENDED OUTPUT 431 1 Figure 19. ADL5723-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