AD1985 Analog Devices, AD1985 Datasheet - Page 5

• Manufacturer Part Number: AD1985
• Description: AC'97 2.3 Soundmax Codec W/jack Sensing
• Manufacturer: Analog Devices

ANALOG MIXER—INPUT GAIN/AMPLIFIERS/ATTENUATORS
Parameter
Signal-to-Noise Ratio (SNR)
DIGITAL DECIMATION AND INTERPOLATION FILTERS
Parameter
Pass Band
Pass-Band Ripple
Transition Band
Stop Band
Stop-Band Rejection
Group Delay
Group Delay Variation over Pass Band
ANALOG-TO-DIGITAL CONVERTERS
Parameter
Resolution
Total Harmonic Distortion (THD)
Dynamic Range (–60 dB in THD+N; Referenced to Full-Scale;
Signal-to-Intermodulation Distortion
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, C/LFE
Total Harmonic Distortion (THD); HP_OUT
Dynamic Range (–60 dB in THD+N; Referenced to Full-Scale;
Signal-to-Intermodulation Distortion
Gain Error (Output Full-Scale Voltage Relative to Nominal Output
Interchannel Gain Mismatch (Difference of Gain Errors)
DAC Crosstalk
Total Out-of-Band Energy (Measured from 0.6 × f
1
2
Guaranteed, not tested.
C/LFE specified with 10 kΩ load.
CD to LINE_OUT
LINE, AUX, PHONE, to LINE_OUT
MIC1 or MIC2 to LINE_OUT
Step Size: All Mixer Inputs, except PC Beep
Input Gain/Attenuation Range (+12 dB to –34.5 dB):
All Mixer Inputs
A-Weighted)
Line Inputs
(Input L, Ground R, Read R; Input R, Ground L Read L)
LINE_IN to Other
A-Weighted)
Full-Scale Voltage)
(Input L, Zero R, Read R_OUT; Input R, Zero L, Read L_OUT
1
1
1
2
1
1
(CCIF Method)
(CCIF Method)
S
to 100 kHz)
1
Rev. 0 | Page 5 of 48
Min
Min
0
0.4 × F
0.6 × F
–74
Min
Min
1
S
S
Typ
90
85
80
1.5
46.5
Typ
16/F
0
Typ
16
–85
84
85
–85
–95
Typ
20
–90
–75
90
100
±10
–100
–85
s
Max
Max
0.4 × F
±0.09
0.6 × F
∞
Max
±10
±0.5
±5
Max
±0.7
S
S
Unit
dB
dB
dB
dB
dB
Unit
Hz
dB
Hz
Hz
dB
s
µs
Unit
Bits
dB
dB
dB
dB
dB
%
dB
mV
Unit
Bits
dB
dB
dB
dB
%
dB
dB
dB
AD1985