STAC9766 Datasheet, PDF (12/97 Pages) Integrated Device Technology – TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING

STAC9766/9767
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
PC AUDIO
Note:
PCM (DAC) to LINE_OUT
Parameter
Min
Typ
Max
Unit
0.5
Vrms
MONO_OUT
-
0.5
-
Vrms
HEADPHONE_OUT (32 Ω load) (peak)
-
12.5
-
mW
Analog S/N: (Note 2)
CD to LINE_OUT
Other to LINE_OUT
-
97
-
dB
-
97
-
dB
D/A to LINE_OUT
LINE_IN to A/D with High pass filter enabled
-
95
-
dB
-
85
-
dB
Analog Frequency Response (Note 3)
20
-
20,000 Hz
Total Harmonic Distortion: (Note 4)
CD to LINE_OUT
Other to LINE_OUT
-
95
-
dB
-
95
-
dB
D/A to LINE_OUT (full scale)
LINE_IN to A/D with High pass filter enabled
-
84
-
dB
-
84
-
dB
HEADPHONE_OUT
74
80
-
dB
A/D & D/A Digital Filter Pass Band (Note 5)
A/D & D/A Digital Filter Transition Band
20
-
19,200 Hz
19,200
-
28,800 Hz
A/D & D/A Digital Filter Stop Band
A/D & D/A Digital Filter Stop Band Rejection (Note 6)
28,800
-
100
-
-
Hz
-
dB
DAC Out-of-Band Rejection (Note 7)
55
-
-
dB
Group Delay (48 KHz sample rate)
Any Analog Input to LINE_OUT Crosstalk (10 KHz Signal Frequency)
Any Analog Input to LINE_OUT Crosstalk (1 KHz Signal Frequency)
-
-
70
-
-
100
1
ms
-
dB
-
dB
Spurious Tone Rejection
-
100
-
dB
Attenuation, Gain Step Size
Input Impedance (Note 8)
-
1.5
-
dB
-
50
-
KΩ
Input Capacitance
VREFout
-
15
-
pF
-
0.5 X AVdd
-
V
Interchannel Gain Mismatch ADC
-
-
0.5
dB
Interchannel Gain Mismatch DAC
Gain Drift
-
-
0.5
dB
-
100
-
ppm/ºC
1. With +30 dB Boost on, 1.0Vrms with Boost off
2. Ratio of Full Scale signal to idle channel noise output is measured “A weighted” over a 20 Hz to a 20 KHz bandwidth.
(AES17-1991 Idle Channel Noise or EIAJ CP-307 Signal-to-noise Ratio).
3. ± 1dB limits for Line Output & 0 dB gain
4. 20 KHz BW, 48 KHz Sample Frequency
5. ± 0.25dB limits
6. Stop Band rejection determines filter requirements. Out-of-Band rejection determines audible noise.
7. The integrated Out-of-Band noise generated by the DAC process, during normal PCM audio playback, over a bandwidth
28.8 to 100 KHz, with respect to a 1 Vrms DAC output.
8. For all inputs except PC BEEP.
IDT™
12
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
STAC9766/9767
V 7.4 12/06