STAC9721 Datasheet, PDF (41/48 Pages) List of Unclassifed Manufacturers – Stereo AC 97 Codec With Multi-Codec Option

SigmaTel, Inc.
Data Sheet
STAC9721
10.4
AC-Link Static Digital Specifications (T_ambient = 25 ^oC, DVdd = 5.0V or 3.3V ± 5%,
AVss=DVss=0V; 50pF external load)
Table 34. AC-Link Static Specifications
PARAMETER
Input Voltage Range
Low level input range
High level input voltage
High level output voltage
Low level output voltage
Input Leakage Current (AC-Link inputs)
Output Leakage Current (Hi-Z’d AC-Link
outputs)
Output buffer drive current
SYMBOL MIN TYP MAX UNITS
Vin
-0.30
DVdd +
V
0.30
Vil
-
- 0.35xDVdd V
Vih 0.65xDVd -
-
V
d
Voh 0.90xDVd -
-
V
d
Vol
-
- 0.1xDVdd V
-
-10
-
10
uA
-
-10
-
10
uA
-
-
5
mA
10.5 STAC9721 Analog Performance Characteristics (T_ambient = 25 ^oC, AVdd = 5.0V ± 5%, 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 35. Analog Performance Characteristics
PARAMETER
Full Scale Input Voltage:
Line Inputs
Mic Inputs¹
Full Scale Output Voltage:
Line Output 5V
Analog S/N:
CD to LINE_OUT 5V
Other to LINE_OUT 5V
Analog Frequency Response²
Digital S/N³
D/A 5V
A/D 5V
Digital S/N³
D/A 5V
A/D 5V
Total Harmonic Distortion:
Line Output⁴
D/A & A/D Frequency Response⁵
Transition Band
Stop Band
Stop Band Rejection⁶
MIN
-
-
-
90
-
20
85
75
85
75
-
20
19,200
28,800
+85
TYP
1.0
0.1
1.0
98
98
-
96
87
96
86
-
-
-
-
-
MAX
-
-
-
-
-
20,000
-
-
-
-
0.02
19,200
28,800
∞
−
UNITS
Vrms
Vrms
dB
Hz
dB
dB
%
Hz
Hz
Hz
dB
41
04/07/00
04/07/00