STAC9721 Datasheet, PDF (44/48 Pages) List of Unclassifed Manufacturers – Stereo AC 97 Codec With Multi-Codec Option

SigmaTel, Inc.
Data Sheet
STAC9721
Vrefout
Interchannel Gain Mismatch ADC
Interchannel Gain Mismatch DAC
Gain Drift
DAC Offset Voltage
Deviation from Linear Phase
External Load Impedance
Mute Attenuation (0 dB)
-
0.5 x
AVdd
-
100
10
10
90
96
−
V
0.5
dB
0.5
dB
ppm/ ^oC
50
mV
1
degree
KΩ
dB
Notes:
1. With +20 dB Boost on, 1.0Vrms with Boost off
2. ± 1 dB limits
3. The ratio of the rms output level with 1 kHz full scale input to the rms output level with all
zeros into the digital input. 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).
4. 0 dB gain, 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.
44
04/07/00
04/07/00