Specifications; Analog Performance Specifications, T A = 25°C - Analog Devices ADAU1961 Manual

SPECIFICATIONS

Supply voltage (AVDD) = 3.3 V, T
bandwidth = 20 Hz to 20 kHz, word width = 24 bits, C
unless otherwise noted. Performance of all channels is identical, exclusive of the interchannel gain mismatch and interchannel phase
deviation specifications.
ANALOG PERFORMANCE SPECIFICATIONS, T
IOVDD = 3.3 V ± 10%.
Table 1.
Parameter
ANALOG-TO-DIGITAL CONVERTERS
ADC Resolution
Digital Attenuation Step
Digital Attenuation Range
INPUT RESISTANCE
Single-Ended Line Input
PGA Inverting Inputs
PGA Noninverting Inputs
SINGLE-ENDED LINE INPUT
Full-Scale Input Voltage (0 dB)
Dynamic Range
With A-Weighted Filter (RMS)
No Filter (RMS)
Total Harmonic Distortion + Noise
Signal-to-Noise Ratio
With A-Weighted Filter (RMS)
No Filter (RMS)
Input Mixer Gain per Step
Mute Attenuation
Interchannel Gain Mismatch
Offset Error
Gain Error
Interchannel Isolation
Power Supply Rejection Ratio
PSEUDO-DIFFERENTIAL PGA INPUT
Full-Scale Input Voltage (0 dB)
Dynamic Range
With A-Weighted Filter (RMS)
No Filter (RMS)
Total Harmonic Distortion + Noise
Signal-to-Noise Ratio
With A-Weighted Filter (RMS)
No Filter (RMS)
PGA Boost Gain Error
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= 25°C, master clock = 12.288 MHz (48 kHz f
A
(digital output) = 20 pF, I
LOAD
= 25°C
A
Test Conditions/Comments
ADC performance excludes mixers
and PGA
All ADCs
−12 dB gain
0 dB gain
6 dB gain
−12 dB gain
0 dB gain
35.25 dB gain
All gains
20 Hz to 20 kHz, −60 dB input
−1 dBFS
−12 dB to +6 dB range
LINPG[2:0], LINNG[2:0] = 000,
RINPG[2:0], RINNG[2:0] = 000,
MX1AUXG[2:0], MX2AUXG[2:0] = 000
CM capacitor = 20 μF, 100 mV p-p @ 1 kHz
20 Hz to 20 kHz, −60 dB input
−1 dBFS
20 dB gain setting (RDBOOST[1:0],
LDBOOST[1:0] = 10)
Rev. 0 | Page 3 of 76
, 256 × f mode), input sample rate = 48 kHz, measurement
S S
(digital output) = 2 mA, V
LOAD
Min Typ
24
0.375
95
80.4
21
10.5
84.5
53
1.7
105
1.0 (2.83)
83.5 99
83 96
−90
99
96
2.89 3
−85.5
−0.3 +0.032
−5 0
−17 −12
68
67
1.0 (2.83)
94 98
91 95
−89
98
95
−8 +0.4
ADAU1961
= 2 V, V = 0.8 V,
IH IL
Max Unit
Bits
dB
dB
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
V rms (V p-p)
dB
dB
−71 dB
dB
dB
3.07 dB
−77 dB
+0.3 dB
+5 mV
−8 %
dB
dB
V rms (V p-p)
dB
dB
−83 dB
dB
dB
+8 dB