Datasheet

REV. 0–2–
AD74111–SPECIFICATIONS
(AVDD = 2.5 V ± 5%, DVDD2 = 2.5 V ± 5%, DVDD1 = 2.5 V ± 5%, f
MCLK
= 12.288 MHz,
f
S
= 48 kHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
Parameter Conditions Min Typ Max Unit
ANALOG-TO-DIGITAL CONVERTERS
ADC Resolution 24 Bits
Signal to Noise Ratio (SNR) f
S
= 16 kHz 70 77 dB
Dynamic Range
(20 Hz to 20 kHz, –60 dB Input)
No Filter f
S
= 48 kHz 85 dB
f
S
= 16 kHz 78 85 dB
With A-Weighted Filter f
S
= 48 kHz 87 dB
Total Harmonic Distortion + Noise f
S
= 48 kHz, PGA = 0 dB –67 dB
f
S
= 16 kHz –75 dB
Programmable Input Gain 12 dB
Gain Step Size 3dB
Offset Error –55 +30 +80 mV
Full-Scale Input Voltage 0.5 V rms
Input Resistance 4kΩ
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) f
S
= 16 kHz 80 89 dB
Dynamic Range
(20 Hz to 20 kHz, –60 dB Input)
No Filter f
S
= 48 kHz 93 dB
f
S
= 16 kHz 84 93 dB
With A-Weighted Filter f
S
= 48 kHz 95 dB
Total Harmonic Distortion + Noise f
S
= 48 kHz –88 dB
f
S
= 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, V
REF
1.125 V
V
REF
TC 50 ppm/°C