AD1937−40°C<TC < +125°C, AVDD = 3.3 V ± 10%Parameter Conditions/CommentsMinMaxUnits Full-Scale Output Voltage 1.6 1.9 V rms (V p-p) Gain Error −10 +10 % Interchannel Gain Mismatch −0.2 +0.2 dB Offset Error −30 +25 mV Gain Drift −30 +30 ppm/°C Interchannel Isolation −95 dB Interchannel Phase Deviation By design Degrees Volume Control Step By design dB Volume Control Range By design dB De-emphasis Gain Error By design dB Output Resistance at Each Pin By design Ω REFERENCE Internal Reference Voltage FILTR pin 1.46 1.57 V dc External Reference Voltage FILTR pin 1.32 1.68 V dc Common-Mode Reference Output CM pin 1.45 1.56 V dc REGULATOR Input Supply Voltage VSUPPLY pin 4.5 5.5 V dc Regulated Output Voltage VSENSE pin 3.05 3.71 V dc CRYSTAL OSCILLATOR SPECIFICATIONSTable 4. ParameterMinTypMaxUnit Transconductance 3.5 mmhos Rev. B | Page 5 of 36 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TEST CONDITIONS ANALOG PERFORMANCE SPECIFICATIONS CRYSTAL OSCILLATOR SPECIFICATIONS DIGITAL SPECIFICATIONS POWER SUPPLY SPECIFICATIONS DIGITAL FILTERS TIMING SPECIFICATIONS TIMING DIAGRAMS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION ANALOG-TO-DIGITAL CONVERTERS (ADCs) DIGITAL-TO-ANALOG CONVERTERS (DACs) CLOCK SIGNALS RESET AND POWER-DOWN I2C CONTROL PORT POWER SUPPLY AND VOLTAGE REFERENCE SERIAL DATA PORTS—DATA FORMAT TIME-DIVISION MULTIPLEXED (TDM) MODES DAISY-CHAIN MODE ADDITIONAL MODES CONTROL REGISTERS DEFINITIONS PLL AND CLOCK CONTROL REGISTERS DAC CONTROL REGISTERS ADC CONTROL REGISTERS APPLICATIONS CIRCUITS OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS