EMP202 Datasheet, PDF (25/28 Pages) List of Unclassifed Manufacturers – Single-Chip Dual-Channel AC’97 Audio Codec for PC Audio Systems

Single-Chip Dual-Channel AC’97 Audio Codec
EMP202
EMPIA Technology
7. Analog Performance Characteristics
Standard test condition:
Tambient=25 0 C, Dvdd=5.0 or 3.3V ±5%,Avdd=5.0V ±5%
Input Voltage Level: Logic Low=0.35*Vdd, Logic High=0.65Vdd
1KHz input sine wave; Sampling frequency=48KHz; 0dB=1Vrms
10K §Ù/50pF load; Testbench Characterization BW:20Hz~20KHz
0dB attenuation; tone and 3D disabled
Parameter
Full scale input voltage
Mixer (except for MIC)
Mic input (gain=0dB)
Mic input (gain=20dB)
ADC
Full scale output voltage
DAC
S/N (A weighted)
CD to LINE_OUT
Other to LINE_OUT
ADC DAC
Total Harmonic Distortion + Noise
ADC
DAC
Frequency Response
Mixers
ADC & DAC
Power Supply Rejection (DAC,ADC)
Total Out-of-Band Noise (28.8K~100KHz)
Mic 20dB gain is selected
Crosstalk between inputs channels
Attenuation, Gain Step Size
Input impedance (gain=0dB)
PC_BEEP only
Others (PHONE,LINE,CD,AUX,VIDEO)
MIC1 and MIC2
Power Supply Current (normal operation)
VA=5v
VD=3.3v
Power Supply Current (power down mode)
VA=5v
VD=3.3v
VREFOUT
Digital Filter Characteristics
ADC Low pass Filter
Pass band
Stop band
Stop band Rejection
Pass band Frequency Response
DAC Low pass Filter
Pass band
Stop band
Stop band Rejection
Pass band Frequency Response
Min
Typical
-
1.6
-
1.6
-
0.16
-
1.0
-
1.0
-
95
-
92
-
85
-
88
-
-80
-
-80
20
-
20
-
-
-68
-
-63
18
20
-
-
-
1.5
-
32
-
32
-
16
-
50
-
20
-
1
-
2
2.25
2.50
0
-
28.8
-
-
-76.0
-
+- 0.15
0
-
28.8
-
-
-78.5
-
+- 0.15
Max
-
-
-
-
1.41
-
-
-
-
-
-
20,000
19,200
-
-
22
-70
-
-
-
-
-
-
mA
mA
2.75
19.2
-
-
-
19.2
-
-
-
Units
Vrms
Vrms
Vrms
Vrms
Vrms
dB FSA
dB FSA
dB FSA
dB FSA
dB FS
dB FS
Hz
dB
dB
dB
dB
dB
K
mA
mA
V
KHz
KHz
dB
dB
KHz
KHz
dB
dB
7/15/2002
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