STAC9721 Datasheet, PDF (43/48 Pages) List of Unclassifed Manufacturers – Stereo AC 97 Codec With Multi-Codec Option

SigmaTel, Inc.
Data Sheet
STAC9721
10.6 STAC9723 Analog Performance Characteristics (T_ambient = 25 ^oC, AVdd = DVdd = 3.3V ±
5%, AVss=DVss=0V; 1 kHz input sine wave; Sample Frequency = 48 kHz; 0 dB = 1 Vrms, 10KΩ/50pF load,
Testbench Characterization BW: 20 Hz – 20 kHz, 0 dB settings on all gain stages)
Table 36. Analog Performance Characteristics
PARAMETER
MIN TYP
Full Scale Output Voltage:
Line Inputs to line output 3.3V
Line Inputs to LINE_OUT 3.3V @ Line In =
1 Vrms and @ Gain setting of 4.5-6 dB
Line Inputs to LINE_OUT 3.3V @ Line In =
0.6 5 Vrms and @ gain setting of 0dB
PCM to LINE_OUT 3.3V @ full scale PCM input
@PCM gain setting of 0dB
PCM to Line Output 3.3V
MIC Inputs to LINE_OUT 3.3V @ MIC In
= 1 Vrms and @ gain setting of 0dB
Full Scale Output Voltage:
Line Inputs to line output 3.3V
Line Inputs to LINE_OUT 3.3V @ Line In =
1 Vrms and @ Gain setting of -6 dB
Line Inputs to LINE_OUT 3.3V @ Line In =
0.5 Vrms and @ gain setting of 0dB
PCM to LINE_OUT 3.3V @ full scale PCM input
@PCM gain setting of 0dB
PCM to Line Output 3.3V
MIC Inputs to LINE_OUT 3.3V @ MIC In
= 1 Vrms and @ gain setting of 0dB
Analog S/N:
CD to LINE_OUT 3.3V
Other to LINE_OUT 3.3V
Analog Frequency Response²
Digital S/N³
D/A 3.3V
A/D 3.3V
Total Harmonic Distortion:
Line Output⁴
D/A & A/D Frequency Response⁵
Transition Band
Stop Band
Stop Band Rejection⁶
Out-of-Band Rejection⁷
Group Delay
Power Supply Rejection Ratio (1kHz)
Crosstalk between Input channels
Spurious Tone Rejection
Attenuation, Gain Step Size
Input Impedance
Input Capacitance
-
-
-
20
85
75
-
20
19,200
28,800
+85
-
-
-
-
-
-
10
-
0.65
0.65
0.65
0.555
0.5
0.5
0.5
0.5
0.5
0.5
90
90
-
90
85
-
-
-
-
-
+40
-
+40
-
+100
1.5
-
15
MAX
-
-
-
20,000
-
-
0.02
19,200
28,800
∞
−
−
1
−
-70
−
−
−
−
UNITS
Vrms
Vrms
Vrms
Vrms
Vrms
Vrms
Vrms
Vrms
Vrms
Vrms
Hz
%
Hz
Hz
Hz
dB
dB
ms
dB
dB
dB
dB
KΩ
pF
43
04/07/00
04/07/00