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REV. 0
–2–
AD1812–SPECIFICATIONS
STANDARD TEST CONDITIONS UNLESS OTHERWISE NOTED
DAC Test Condition
s
Calibrated
0 dB Attenuation
Input Full Scale
16-Bit Linear Mode
10 k
Output Load
Mute Off
ADC Test Conditions
Calibrated
0 dB Gain
Input –1.0 dB Relative to Full Scale
Line Input Selected
16-Bit Linear Mode
Temperature
Digital Supply (V
DD
)
Analog Supply (V
CC
)
0
5.0
5.0
°
C
V
V
Sample Rate (F
S
)
Input Signal
Analog Output Passband
V
IH
48
1008
20 Hz to 20 kHz
2.0
kHz
Hz
V
V
IL
V
OH
V
OL
0.8
2.4
0.4
V
V
V
ANALOG INPUT
Parameter
Min
Typ
Max
Units
Input Voltage (RMS Values Assume Sine Wave Input)
LINE, AUX1, MONO_IN, AUX2, DACIN
1
2.83
0.1
0.283
1
2.83
17
V rms
V rms
V p-p
V rms
V p-p
k
pF
2.55
3.11
MIC with +20 dB Gain (MGE = 1)
0.250
0.316
MIC with 0 dB Gain (MGE = 0)
2.55
10
3.11
Input Impedance*
Input Capacitance*
15
PROGRAMMABLE GAIN AMPLIFIER—ADC
Parameter
Min
Typ
Max
Units
Step Size (0 dB to 22.5 dB)
(All Steps Tested)
PGA Gain Range Span
1.3
1.5
1.7
dB
21.5
22.5
23.5
dB
AUXILIARY, LINE, MICROPHONE AND MONO INPUT ANALOG GAIN/AMPLIFIERS/ATTENUATORS
Parameter
Min
Typ
Max
Units
Step Size: AUX1, AUX2, DACIN, LINE, MIC (All Steps Tested)
(+12 dB to –30 dB)
(–31.5 dB to –34.5 dB)
Input Gain/Attenuation Range: AUX1, AUX2, DACIN, LINE, MIC
Step Size: MONO_IN (All Steps Tested)
(0 dB to –39 dB)
(–42 dB to –45 dB)
Input Gain/Attenuation Range: MONO_IN
1.25
1
45.0
1.5
1.5
46.5
1.75
2.0
47.5
dB
dB
dB
2.5
2.2
43
3.0
3.0
45
3.6
3.85
46
dB
dB
dB
DIGITAL DECIMATION AND INTERPOLATION FILTERS*
Parameter
Min
Typ
Max
Units
Passband
Passband Ripple
Transition Band
Stopband
Stopband Rejection
Group Delay
Group Delay Variation Over Passband
0
0.4
×
F
S
±
0.1
0.6
×
F
S
∞
Hz
dB
Hz
Hz
dB
sec
μ
s
0.4
×
F
S
0.6
×
F
S
74
15/F
S
0.0
*Guaranteed not tested.
Specifications subject to change without notice.