Data SheetADRF6516PIN CONFIGURATION AND FUNCTION DESCRIPTIONS111MNBLCMIENPINMIVPSCOVOFSVPS3231302928272625VPSD 124 OPP1COMD 223 OPM1LE 322 COMCLK 4ADRF651621 GAINDATA 5TOP VIEW20 VOCMSDO(Not to Scale)619 COMCOM 718 OPM2VPS 817 OPP2910111213141516M22MS2CONPINMIVPSCOVPSOFDOFSNOTES 002 1. CONNECT THE EXPOSED PADDLE TOA LOW IMPEDANCE GROUND PAD. 09422- Figure 4. Pin Configuration Table 3. Pin Function Descriptions Pin No.MnemonicDescription 1 VPSD Digital Positive Supply Voltage: 3.15 V to 3.45 V. 2 COMD Digital Common. Connect to external circuit common using the lowest possible impedance. 3 LE Latch Enable. SPI programming pin. TTL levels: VLOW < 0.8 V, VHIGH > 2 V. 4 CLK SPI Port Clock. TTL levels: VLOW < 0.8 V, VHIGH > 2 V. 5 DATA SPI Data Input. TTL levels: VLOW < 0.8 V, VHIGH > 2 V. 6 SDO SPI Data Output. TTL levels: VLOW < 0.8 V, VHIGH > 2 V. 7, 9, 13, 19, 22, 28 COM Analog Common. Connect to external circuit common using the lowest possible impedance. 8, 12, 16, 25, 29 VPS Analog Positive Supply Voltage: 3.15 V to 3.45 V. 10, 11, 30, 31 INP2, INM2, Differential Inputs. 1600 Ω input impedance. INM1, INP1 14 OFDS Offset Compensation Loop Disable. Pull high to disable the offset compensation loop. 15, 26 OFS2, OFS1 Offset Compensation Loop Capacitors. Connect capacitors to circuit common. 17, 18, 23, 24 OPP2, OPM2, Differential Outputs. 30 Ω output impedance. Common-mode range is 0.7 V to 2.8 V; default is VPS/2. OPM1, OPP1 20 VOCM Output Common-Mode Setpoint. Defaults to VPS/2 if left floating. 21 GAIN Analog Gain Control. 0 V to 1 V, 15.5 mV/dB gain scaling. 27 VICM Input Common-Mode Voltage. VPS/2 V reference. Use to reference the optimal common-mode drive to the differential inputs. 32 ENBL Chip Enable. Pull high to enable. EP Exposed Paddle. Connect the exposed paddle to a low impedance ground pad. Rev. C | Page 7 of 29 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING DIAGRAMS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS REGISTER MAP AND CODES THEORY OF OPERATION INPUT BUFFERS PROGRAMMABLE FILTERS VARIABLE GAIN AMPLIFIERS (VGAs) OUTPUT BUFFERS/ADC DRIVERS DC OFFSET COMPENSATION LOOP PROGRAMMING THE FILTERS AND GAINS 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 ERROR VECTOR MAGNITUDE (EVM) PERFORMANCE EVM TEST SETUP EFFECT OF FILTER BANDWIDTH ON EVM EFFECT OF OUTPUT VOLTAGE LEVELS ON EVM EFFECT OF COFS VALUE ON EVM EVALUATION BOARD EVALUATION BOARD CONTROL SOFTWARE SCHEMATICS AND ARTWORK OUTLINE DIMENSIONS ORDERING GUIDE