ADSP-1981BL AD [Analog Devices], ADSP-1981BL Datasheet - Page 4

• Manufacturer Part Number: ADSP-1981BL
• Description: AC 97 SoundMAX Codec
• Manufacturer: AD [Analog Devices]

AD1981BL
Parameter
DIGITAL DECIMATION AND INTERPOLATION FILTERS
ANALOG-TO-DIGITAL CONVERTERS
DIGITAL-TO-ANALOG CONVERTERS
ANALOG OUTPUT
STATIC DIGITAL SPECIFICATIONS
Step Size (+12 dB to −34.5 dB) (All Steps Tested):
Input Gain/Attenuation Range:
Pass Band
Pass-Band Ripple
Transition Band
Stop Band
Stop-Band Rejection
Group Delay
Group Delay Variation over Pass Band
Resolution
Total Harmonic Distortion (THD)
Dynamic Range (−60 dB Input THD + N Referenced to Full Scale, A-Weighted)
Signal-to-Intermodulation Distortion
ADC Crosstalk
Gain Error
Interchannel Gain Mismatch (Difference of Gain Errors)
ADC Offset Error
Resolution
Total Harmonic Distortion (THD) LINE_OUT
Total Harmonic Distortion (THD) HP_OUT
Dynamic Range (−60 dB Input THD + N Referenced to Full Scale, A-Weighted)
Signal-to-Intermodulation Distortion
Gain Error
Interchannel Gain Mismatch (Difference of Gain Errors)
DAC Crosstalk
Full-Scale Output Voltage; LINE_OUT and MONO_OUT
Output Impedance
External Load Impedance
Output Capacitance
External Load Capacitance
Full-Scale Output Voltage; HP_OUT (0 dB Gain)
External Load Impedance
V
V
V
Mute Click (Muted Output Minus Unmuted Midscale DAC Output)
High Level Input Voltage (V
Low Level Input Voltage (V
High Level Output Voltage (V
REF
REFOUT
REFOUT
MIC_IN, LINE_IN, CD, AUX, PHONE_IN, DAC
MIC_IN, LINE_IN, CD, AUX, PHONE_IN, DAC
Line Inputs (Input L, Ground R, Read R; Input R, Ground L, Read L)
Line_In to Other
L_OUT)
Current Drive
2
2
(Full-Scale Span Relative to Nominal Input Voltage)
(Output FS Voltage Relative to Nominal Output FS Voltage)
1
1
(Input L, Zero R, Measure R_OUT; Input R, Zero L, Measure
1
1
1
1
1
1
IL
IH
)
): Digital Inputs
OH
), I
OH
= 2 mA
1
1
CCIF Method)
(CCIF Method)
1
Rev. A | Page 4 of 32
Min
0
0.4 × f
0.6 × f
−74
78
82
10
32
1
0.65 × DV
0.9 × DV
S
S
DD
DD
1.5
46.5
−87
83
−80
−88
−81
87.5
Typ
16/f
0
16
85
−100
20
−100
0.707
2.0
15
1
1.12
2.25
±5
S
Max
0.4 × f
±0.09
0.6 × f
∞
−80
±10
± 0.5
±5
±10
±0.7
−80
800
100
1.225
5
0.35 × DV
S
S
DD
dB
dB
dB
µs
Bits
dB
dB
dB
dB
dB
mV
Bits
dB
dB
dB
%
dB
V rms
Ω
kΩ
pF
pF
V rms
Ω
V
V
mV
Unit
Hz
dB
Hz
Hz
sec
dB
%
dB
dB
V p-p
mA
V
V
V