Datasheet AD1937 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | Four ADCs/Eight DACs with PLL, 192 kHz, 24-Bit Codec |
| Pages / Page | 36 / 3 — AD1937. SPECIFICATIONS TEST CONDITIONS. Table 1. Parameter Value. ANALOG … |
| Revision | B |
| File Format / Size | PDF / 435 Kb |
| Document Language | English |
AD1937. SPECIFICATIONS TEST CONDITIONS. Table 1. Parameter Value. ANALOG PERFORMANCE SPECIFICATIONS
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AD1937 SPECIFICATIONS TEST CONDITIONS
Performance of all channels is identical, exclusive of the interchannel gain mismatch and interchannel phase deviation specifications.
Table 1. Parameter Value
Supply Voltages (AVDD, DVDD) 3.3 V Temperature As specified in Table 2 and Table 3 Master Clock 12.288 MHz (48 kHz fS, 256 × fS mode) Input Sample Rate 48 kHz Measurement Bandwidth 20 Hz to 20 kHz Word Width 24 bits Load Capacitance (Digital Output) 20 pF Load Current (Digital Output) ±1 mA or 1.5 kΩ to ½ DVDD supply Input Voltage High 2.0 V Input Voltage Low 0.8 V
ANALOG PERFORMANCE SPECIFICATIONS
Specifications guaranteed at a TA of 25°C.
Table 2. Parameter Conditions/Comments Min Typ Max Unit
ANALOG-TO-DIGITAL CONVERTERS ADC Resolution All ADCs 24 Bits Dynamic Range 20 Hz to 20 kHz, −60 dB input No Filter (RMS) 96 102 dB With A-Weighted Filter (RMS) 98 105 dB Total Harmonic Distortion + Noise −1 dBFS −96 −87 dB Full-Scale Input Voltage (Differential) 1.9 V rms Gain Error −10 +10 % Interchannel Gain Mismatch −0.25 +0.25 dB Offset Error −10 0 +10 mV Gain Drift 100 ppm/°C Interchannel Isolation −110 dB CMRR 100 mV rms, 1 kHz 55 dB 100 mV rms, 20 kHz 55 dB Input Resistance 14 kΩ Input Capacitance 10 pF Input Common-Mode Bias Voltage 1.5 V DIGITAL-TO-ANALOG CONVERTERS DAC Resolution All DACs 24 Bits Dynamic Range 20 Hz to 20 kHz, −60 dB input No Filter (RMS) 102 107 dB With A-Weighted Filter (RMS) 105 110 dB With A-Weighted Filter (Average) 112 dB Rev. B | Page 3 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
AD1937 SPECIFICATIONS TEST CONDITIONS
Performance of all channels is identical, exclusive of the interchannel gain mismatch and interchannel phase deviation specifications.
Table 1. Parameter Value
Supply Voltages (AVDD, DVDD) 3.3 V Temperature As specified in Table 2 and Table 3 Master Clock 12.288 MHz (48 kHz fS, 256 × fS mode) Input Sample Rate 48 kHz Measurement Bandwidth 20 Hz to 20 kHz Word Width 24 bits Load Capacitance (Digital Output) 20 pF Load Current (Digital Output) ±1 mA or 1.5 kΩ to ½ DVDD supply Input Voltage High 2.0 V Input Voltage Low 0.8 V
ANALOG PERFORMANCE SPECIFICATIONS
Specifications guaranteed at a TA of 25°C.
Table 2. Parameter Conditions/Comments Min Typ Max Unit
ANALOG-TO-DIGITAL CONVERTERS ADC Resolution All ADCs 24 Bits Dynamic Range 20 Hz to 20 kHz, −60 dB input No Filter (RMS) 96 102 dB With A-Weighted Filter (RMS) 98 105 dB Total Harmonic Distortion + Noise −1 dBFS −96 −87 dB Full-Scale Input Voltage (Differential) 1.9 V rms Gain Error −10 +10 % Interchannel Gain Mismatch −0.25 +0.25 dB Offset Error −10 0 +10 mV Gain Drift 100 ppm/°C Interchannel Isolation −110 dB CMRR 100 mV rms, 1 kHz 55 dB 100 mV rms, 20 kHz 55 dB Input Resistance 14 kΩ Input Capacitance 10 pF Input Common-Mode Bias Voltage 1.5 V DIGITAL-TO-ANALOG CONVERTERS DAC Resolution All DACs 24 Bits Dynamic Range 20 Hz to 20 kHz, −60 dB input No Filter (RMS) 102 107 dB With A-Weighted Filter (RMS) 105 110 dB With A-Weighted Filter (Average) 112 dB Rev. B | Page 3 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
