ADRF6518Data Sheet31108630ns)4ATCH ( M2dB)ST29N (0AI GLAY MI –2 P DE –4BANDWIDTH = 15MHz28OUBANDWIDTH = 7MHzGR –6–827–101112131415161 017 24681012141618202224 119 FREQUENCY (MHz) 11449- FREQUENCY (MHz) 11449- Figure 17. Gain vs. Frequency over BW Setting (Linear); Scaled to Show Figure 20. IQ Group Delay Mismatch vs. Frequency Peaking (BW = 7 MHz and BW = 15 MHz) 405354303ns)25220ATCH (1dB)SMN (150AI G10LAY MI –15P DE –2BANDWIDTH = 30MHzOUBANDWIDTH = 60MHz0GR –3–5–4–10–5110100 117 120 5152535455565FREQUENCY (MHz) 11449- FREQUENCY (MHz) 11449- Figure 18. Gain vs. Frequency over BW Setting (Log); Figure 21. IQ Group Delay Mismatch vs. Frequency VGN1 = 1 V, VGN2 = 0.7 V, VGN3 = 0.75 V (BW = 30 MHz and BW = 60 MHz) FREQUENCY (MHz)00.20.40.60.81.01.21000.50BANDWIDTH = 7MHz900.40800.30700.20(ns) 60dB)0.10LAY 500.00DEATCH (UPBANDWIDTH = 15MHz40SM –0.10BANDWIDTH = 63MHzROMIBANDWIDTH = 1MHzG 30–0.20BANDWIDTH = 30MHz20–0.30BANDWIDTH = 60MHz10–0.400–0.50220 118 0102030405060 121 FREQUENCY (MHz) 11449- FREQUENCY (MHz) 11449- Figure 19. Group Delay vs. Frequency; VGN1/VGN2/VGN3 = 0 V Figure 22. IQ Amplitude Mismatch vs. Frequency; VGN1/VGN2/VGN3 = 0 V Rev. A | Page 10 of 39 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS TIMING DIAGRAMS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS FILTER MODE BYPASS MODE MIXED POWER AND FILTER MODES CHARACTERIZATION NOISE FIGURE CALCULATION REGISTER MAP AND CODES THEORY OF OPERATION INPUT VGAs Driving ADRF6518 Single-Ended PEAK DETECTOR PROGRAMMABLE FILTERS Bypassing the Filters VARIABLE GAIN AMPLIFIERS (VGAs) OUTPUT BUFFERS/ADC DRIVERS DC OFFSET COMPENSATION LOOP PROGRAMMING THE ADRF6518 NOISE CHARACTERISTICS DISTORTION CHARACTERISTICS MAXIMIZING THE DYNAMIC RANGE KEY PARAMETERS FOR QUADRATURE-BASED RECEIVERS APPLICATIONS INFORMATION BASIC CONNECTIONS SUPPLY DECOUPLING INPUT SIGNAL PATH OUTPUT SIGNAL PATH DC OFFSET COMPENSATION LOOP ENABLED COMMON-MODE BYPASSING SERIAL PORT CONNECTIONS ENABLE/DISABLE FUNCTION GAIN PIN DECOUPLING PEAK DETECTOR CONNECTIONS ERROR VECTOR MAGNITUDE (EVM) PERFORMANCE EVM TEST SETUP EVM MEASUREMENT EVM SYSTEM MEASUREMENT EFFECT OF FILTER BW ON EVM PULL-DOWN RESISTORS FOR DISABLE FUNCTION INSTABILITY AT HIGH GAIN IN FILTER BYPASS MODE INSTABILITY AT LOW FILTER CORNERS AND LOW POWER MODE PEAK DETECTOR BANDWIDTH AND SLEW RATE LINEAR OPERATION OF THE ADRF6518 EVALUATION BOARD EVALUATION BOARD CONTROL SOFTWARE SCHEMATICS AND ARTWORK OUTLINE DIMENSIONS ORDERING GUIDE