STAC9750 Datasheet, PDF (11/73 Pages) Integrated Device Technology – VALUE-LINE TWO-CHANNEL AC’97 CODECS

STAC9750/9751
VALUE-LINE TWO-CHANNEL AC’97 CODECS
PC AUDIO
2.1.6.
STAC9750 Analog Performance Characteristics
(T_ambient = 25 ºC, AVdd = 5.0 V ± 5%, DVdd = 3.3 V ± 5%, AVss=DVss=0 V; 1 KHz input sine wave;
Sample Frequency = 48 KHz; 0dB = 1 Vrms, 10 KΩ / 50 pF load, Testbench Characterization BW:
20 Hz – 20 KHz, 0dB settings on all gain stages)
Parameter
Full Scale Input Voltage:
All Analog Inputs except Microphone
Microphone Inputs (Note 1)
Full Scale Output:
Line Output
PCM (DAC) to LINE_OUT
MONO_OUT
HEADPHONE_OUT (32 Ω load) (peak)
Analog S/N: (Note 2)
CD to LINE_OUT
Other to LINE_OUT
D/A to LINE_OUT
LINE_IN to A/D with High pass filter enabled
Analog Frequency Response (Note 3)
Total Harmonic Distortion: (Note 4)
CD to LINE_OUT
Other to LINE_OUT
D/A to LINE_OUT (full scale)
LINE_IN to A/D with High pass filter enabled
HEADPHONE_OUT
A/D & D/A Digital Filter Pass Band (Note 5)
A/D & D/A Digital Filter Transition Band
A/D & D/A Digital Filter Stop Band
A/D & D/A Digital Filter Stop Band Rejection (Note 6)
DAC Out-of-Band Rejection (Note 7)
Group Delay (48KHz sample rate)
Any Analog Input to LINE_OUT Crosstalk (10 KHz Signal Frequency)
Any Analog Input to LINE_OUT Crosstalk (1 KHz Signal Frequency)
Spurious Tone Rejection
Attenuation, Gain Step Size
Input Impedance (Note 8)
Input Capacitance
VREF_OUT
Min
-
-
-
-
-
-
-
-
-
-
20
-
-
-
84
74
20
19,200
28,800
100
55
-
-
-
-
-
-
-
-
Typ
1.0
0.03
1.0
1.0
1.0
50
90
90
89
85
-
89
89
89
-
80
-
-
-
-
-
70
100
100
1.5
50
15
0.5 X AVdd
Max
Unit
-
Vrms
-
Vrms
-
Vrms
Vrms
-
Vrms
-
mW
-
dB
-
dB
-
dB
-
dB
20,000
Hz
-
dB
-
dB
-
dB
-
dB
-
dB
19,200
Hz
28,800
Hz
-
Hz
-
dB
-
dB
1
ms
-
dB
-
dB
-
dB
-
dB
-
KΩ
-
pF
-
V
IDT™
VALUE-LINE TWO-CHANNEL AC’97 CODECS
11
STAC9750/9751
V 5.8 103106