STAC9704 Datasheet, PDF (42/49 Pages) Hynix Semiconductor – Multimedia Audio Codec for AC97

SigmaTel, Inc.
STAC9704/7
Vrefout
Interchannel Gain Mismatch ADC
Interchannel Gain Mismatch DAC
Gain Drift
DAC Offset Voltage
Deviation from Linear Phase
External Load Impedance
Mute Attenuation (Vrms input)
-
0.41 x AVdd
−
V
0.5
dB
-
0.5
dB
100
ppm/ ^o C
10
50
mV
1
degree
10
K ohm
90
96
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.
42
10/02/98