Datasheet AD74111 (Analog Devices) - 2
| Hersteller | Analog Devices |
| Beschreibung | Low Cost, Low Power Mono Audio Codec |
| Seiten / Seite | 20 / 2 — AD74111–SPECIFICATIONS (AVDD = 2.5 V. 5%, DVDD2 = 2.5 V. 5%, DVDD1 = 2.5 … |
| Dateiformat / Größe | PDF / 353 Kb |
| Dokumentensprache | Englisch |
AD74111–SPECIFICATIONS (AVDD = 2.5 V. 5%, DVDD2 = 2.5 V. 5%, DVDD1 = 2.5 V. 5%, fMCLK = 12.288 MHz,
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AD74111–SPECIFICATIONS (AVDD = 2.5 V
±
5%, DVDD2 = 2.5 V
±
5%, DVDD1 = 2.5 V
±
5%, fMCLK = 12.288 MHz, fS = 48 kHz, TA = TMIN to TMAX, unless otherwise noted.) Parameter Conditions Min Typ Max Unit
ANALOG-TO-DIGITAL CONVERTERS ADC Resolution 24 Bits Signal to Noise Ratio (SNR) fS = 16 kHz 70 77 dB Dynamic Range (20 Hz to 20 kHz, –60 dB Input) No Filter fS = 48 kHz 85 dB fS = 16 kHz 78 85 dB With A-Weighted Filter fS = 48 kHz 87 dB Total Harmonic Distortion + Noise fS = 48 kHz, PGA = 0 dB –67 dB fS = 16 kHz –75 dB Programmable Input Gain 12 dB Gain Step Size 3 dB Offset Error –55 +30 +80 mV Full-Scale Input Voltage 0.5 V rms Input Resistance 4 kΩ Input Capacitance 15 pF Common-Mode Input Volts 1.125 V Crosstalk ADC Input Signal = 1.0 kHz, 100 dB 0 dB; DAC Output = DC DIGITAL-TO-ANALOG CONVERTERS DAC Resolution 24 Bits Signal to Noise Ratio (SNR) fS = 16 kHz 80 89 dB Dynamic Range (20 Hz to 20 kHz, –60 dB Input) No Filter fS = 48 kHz 93 dB fS = 16 kHz 84 93 dB With A-Weighted Filter fS = 48 kHz 95 dB Total Harmonic Distortion + Noise fS = 48 kHz –88 dB fS = 16 kHz –88 –81 dB dB DC Accuracy Offset Error –75 –10 +50 mV Gain Error –0.9 +0.175 +0.8 dB Volume Control Step Size (1024 Linear Steps) 0.098 % Volume Control Range (Max Attenuation) –60 dB Mute Attenuation –100 dB De-emphasis Gain Error ±0.1 dB Full-Scale Output Voltage 0.5 V rms Output Resistance 145 Ω Common Mode Output Volts 1.125 V Crosstalk Signal Input ADC = AGND; 95 dB DAC Output Level = 1.0 kHz, 0 dB REFERENCE (Internal) Absolute Voltage, VREF 1.125 V VREF TC 50 ppm/°C –2– REV. 0 Document Outline FEATURES FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION SPECIFICATIONS TIMING CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS TEMPERATURE RANGE ORDERING GUIDE PIN CONFIGURATION PIN FUNCTION DESCRIPTIONS Typical Performance Characteristics FUNCTIONAL DESCRIPTION General Description ADC Section ADC, CAPP, and CAPN Pins Peak Readback Decimator Section Input Signal Swing DAC Section Output Signal Swing Low Group Delay Reference Master Clocking Scheme Selecting Sample Rates Resetting the AD74111 Power Supplies and Grounds Accessing the Internal Registers Serial Port Serial Port Operating Modes Mixed Mode Data Mode Data-Word Length Selecting Master or Slave Mode Master Mode Operation Slave Mode Operation OUTLINE DIMENSIONS
±
5%, DVDD2 = 2.5 V
±
5%, DVDD1 = 2.5 V
±
5%, fMCLK = 12.288 MHz, fS = 48 kHz, TA = TMIN to TMAX, unless otherwise noted.) Parameter Conditions Min Typ Max Unit
ANALOG-TO-DIGITAL CONVERTERS ADC Resolution 24 Bits Signal to Noise Ratio (SNR) fS = 16 kHz 70 77 dB Dynamic Range (20 Hz to 20 kHz, –60 dB Input) No Filter fS = 48 kHz 85 dB fS = 16 kHz 78 85 dB With A-Weighted Filter fS = 48 kHz 87 dB Total Harmonic Distortion + Noise fS = 48 kHz, PGA = 0 dB –67 dB fS = 16 kHz –75 dB Programmable Input Gain 12 dB Gain Step Size 3 dB Offset Error –55 +30 +80 mV Full-Scale Input Voltage 0.5 V rms Input Resistance 4 kΩ Input Capacitance 15 pF Common-Mode Input Volts 1.125 V Crosstalk ADC Input Signal = 1.0 kHz, 100 dB 0 dB; DAC Output = DC DIGITAL-TO-ANALOG CONVERTERS DAC Resolution 24 Bits Signal to Noise Ratio (SNR) fS = 16 kHz 80 89 dB Dynamic Range (20 Hz to 20 kHz, –60 dB Input) No Filter fS = 48 kHz 93 dB fS = 16 kHz 84 93 dB With A-Weighted Filter fS = 48 kHz 95 dB Total Harmonic Distortion + Noise fS = 48 kHz –88 dB fS = 16 kHz –88 –81 dB dB DC Accuracy Offset Error –75 –10 +50 mV Gain Error –0.9 +0.175 +0.8 dB Volume Control Step Size (1024 Linear Steps) 0.098 % Volume Control Range (Max Attenuation) –60 dB Mute Attenuation –100 dB De-emphasis Gain Error ±0.1 dB Full-Scale Output Voltage 0.5 V rms Output Resistance 145 Ω Common Mode Output Volts 1.125 V Crosstalk Signal Input ADC = AGND; 95 dB DAC Output Level = 1.0 kHz, 0 dB REFERENCE (Internal) Absolute Voltage, VREF 1.125 V VREF TC 50 ppm/°C –2– REV. 0 Document Outline FEATURES FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION SPECIFICATIONS TIMING CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS TEMPERATURE RANGE ORDERING GUIDE PIN CONFIGURATION PIN FUNCTION DESCRIPTIONS Typical Performance Characteristics FUNCTIONAL DESCRIPTION General Description ADC Section ADC, CAPP, and CAPN Pins Peak Readback Decimator Section Input Signal Swing DAC Section Output Signal Swing Low Group Delay Reference Master Clocking Scheme Selecting Sample Rates Resetting the AD74111 Power Supplies and Grounds Accessing the Internal Registers Serial Port Serial Port Operating Modes Mixed Mode Data Mode Data-Word Length Selecting Master or Slave Mode Master Mode Operation Slave Mode Operation OUTLINE DIMENSIONS