Datasheet AD1939 (Analog Devices) - 4

AD1939 Data Sheet Parameter Conditions/Comments Min Typ Max Unit
Interchannel Phase Deviation 0 Degrees Volume Control Step 0.375 dB Volume Control Range 95 dB De-emphasis Gain Error ±0.6 dB Output Resistance at Each Pin 100 Ω REFERENCE Internal Reference Voltage FILTR pin 1.50 V External Reference Voltage FILTR pin 1.32 1.50 1.68 V Common-Mode Reference Output CM pin 1.50 V REGULATOR Input Supply Voltage VSUPPLY pin 4.5 5 5.5 V Regulated Output Voltage VSENSE pin 3.19 3.37 3.55 V Specifications measured at a case temperature of 125°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) 93 102 dB With A-Weighted Filter (RMS) 96 104 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 DIGITAL-TO-ANALOG CONVERTERS Dynamic Range 20 Hz to 20 kHz, −60 dB input No Filter (RMS) 101 107 dB With A-Weighted Filter (RMS) 104 110 dB With A-Weighted Filter (Average) 112 dB Total Harmonic Distortion + Noise 0 dBFS Two channels running −94 dB Eight channels running −86 −70 dB Full-Scale Output Voltage 1.76 (4.96) V rms (V p-p) Gain Error −10 +10 % Interchannel Gain Mismatch −0.2 +0.2 dB Offset Error −25 −6 +25 mV Gain Drift −30 +30 ppm/°C REFERENCE Internal Reference Voltage FILTR pin 1.50 V External Reference Voltage FILTR pin 1.32 1.50 1.68 V Common-Mode Reference Output CM pin 1.50 V REGULATOR Input Supply Voltage VSUPPLY pin 4.5 5 5.5 V Regulated Output Voltage VSENSE pin 3.2 3.43 3.65 V
CRYSTAL OSCILLATOR SPECIFICATIONS Table 3. Parameter Min Typ Max Unit
Transconductance 3.5 mmhos Rev. E | Page 4 of 32 Document Outline Features Applications General Description Functional Block Diagram Revision History Specifications Test Conditions Analog Performance Specifications Crystal Oscillator Specifications Digital Input/Output Specifications Power Supply Specifications Digital Filters Timing Specifications 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 Serial Control Port Power Supply and Voltage Reference Serial Data Ports—Data Format Time-Division Multiplexed (TDM) Modes Daisy-Chain Mode Control Registers Definitions PLL and Clock Control Registers DAC Control Registers ADC Control Registers Additional Modes Application Circuits Outline Dimensions Ordering Guide Automotive Products