ad1881a Analog Devices, Inc., ad1881a Datasheet - Page 3

• Manufacturer Part Number: ad1881a
• Description: Ac?97 Soundmax Codec
• Manufacturer: Analog Devices, Inc.

DIGITAL DECIMATION AND INTERPOLATION FILTERS
Parameter
Passband
Passband Ripple
Transition Band
Stopband
Stopband Rejection
Group Delay
Group Delay Variation Over Passband
ANALOG-TO-DIGITAL CONVERTERS
Parameter
Resolution
Total Harmonic Distortion (THD)
Dynamic Range (–60 dB Input THD+N Referenced to Full Scale, A-Weighted)
Signal-to-Intermodulation Distortion (CCIF Method)
ADC Crosstalk
Gain Error (Full-Scale Span Relative to Nominal Input Voltage)
Interchannel Gain Mismatch (Difference of Gain Errors)
ADC Offset Error
DIGITAL-TO-ANALOG CONVERTERS
Parameter
Resolution
Total Harmonic Distortion (THD) LINE_OUT, LNLVL_OUT
Dynamic Range (–60 dB Input THD+N Referenced to Full Scale, A-Weighted)
Signal-to-Intermodulation Distortion (CCIF Method)
Gain Error (Full-Scale Span Relative to Nominal Input Voltage)
Interchannel Gain Mismatch (Difference of Gain Errors)
DAC Crosstalk (Input L, Zero R, Measure R_OUT; Input R, Zero L,
Total Audible Out-of-Band Energy (Measured from 0.6 × F
ANALOG OUTPUT
Parameter
Full-Scale Output Voltage
(LINE_OUT, LNLVL_OUT)
Output Impedance
External Load Impedance
Output Capacitance
External Load Capacitance
V
V
Mute Click (Muted Output Minus Unmuted Midscale DAC Output)
Specifications subject to change without notice.
Guaranteed, not tested.
Line Inputs (Input L, Ground R, Read R; Input R, Ground L, Read L)
LINE_IN to Other
REF
REF_OUT
Measure L_OUT)
S
to 20 kHz)
Min
0
0.4 × F
0.6 × F
–74
Min
Min
Min
10
2.0
S
S
Typ
Typ
16
87
85
–100
–90
Typ
16
90
85
± 10
–40
Typ
1
2.83
15
2.2
2.2
± 5
Max
0.4 × F
± 0.09
0.6 × F
∞
12/F
0.0
Max
0.02
–74
–90
–85
± 10
± 0.5
± 10.5
Max
0.02
–74
± 0.7
–80
Max
500
100
2.5
S
AD1881A
S
S
Unit
Hz
dB
Hz
Hz
dB
sec
µs
Unit
Bits
%
dB
dB
dB
dB
dB
%
dB
mV
Unit
Bits
%
dB
dB
dB
%
dB
dB
dB
Unit
V rms
V p-p
Ω
kΩ
pF
pF
V
V
mV