stac9272 Integrated Device Technology, stac9272 Datasheet - Page 20

• Manufacturer Part Number: stac9272
• Description: 10-channel High Definition Audio Codec
• Manufacturer: Integrated Device Technology

IDT™
Power Supply
Power Supply Rejection Ratio
Power Supply Rejection Ratio
D0 Didd
D0 Aidd
D1 Didd
D1 Aidd
D2 Didd
D2 Aidd
D3 Didd
D3 Aidd
One Stereo ADC Didd
One Stereo ADC Aidd
One Stereo DAC Didd
One Stereo DAC Aidd
CD Input
CD Common Mode Rejection (CMR)
Voltage Reference Outputs
VREFout (Note 8)
VREFILT (VAG)
Phased Locked Loop
PLL lock time
PLL (or Azalia Bit CLK) 24 MHz clock jitter
STAC9271/9272/9273/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC
40dB Mic Boost Enabled THD+N
10-CHANNEL HIGH DEFINITION AUDIO CODEC
1. Ratio of Full Scale signal to noise output with -60dB signal, measured “A weighted” over a 20 Hz to a 20 KHz
2. ± 3dB limits for Line Output and 0dB gain, at -20dBV
3. Amplitude of THD+N, measured with A-weighting filter, over 20 Hz to 20 KHz bandwidth.
4. Ratio of Full Scale signal to idle channel noise output is measured “A weighted” over a 20 Hz to a 20 KHz
5. Peak-to-Peak Ripple over Passband meets ± 0.25dB limits, 48 KHz Sample Frequency.
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
8. Can be set to 0.5 or 0.8 AVdd.
bandwidth.
bandwidth. (AES17-1991 Idle Channel Noise or EIAJ CP-307 Signal-to-noise Ratio.)
bandwidth 28.8 KHz to 100 KHz, with respect to a 1 Vrms DAC output.
Parameter
5.0 V, 4.5 V, & 4.0 V, 3.3 V
5.0 V, 4.5 V, & 4.0 V, 3.3 V
5.0 V, 4.5 V, & 4.0 V, 3.3 V
5.0 V, 4.5 V, & 4.0 V, 3.3 V
5.0 V, 4.5 V, & 4.0 V, 3.3 V
5.0 V, 4.5 V, & 4.0 V, 3.3 V
IDT CONFIDENTIAL
Conditions
5 mV Input
20 KHz
1 KHz
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
20
AVdd
All
All
All
All
All
All
All
All
STAC9271/9272/9273/9274 V 1.0 MARCH2007
Min
50
-
-
-
0.45X
AVdd
AVdd
0.5 X
Typ
150
-70
-40
55
75
85
75
85
23
58
23
37
10
55
96
8
3
2
Max
200
500
10
90
90
30
30
5
-
-
-
PC AUDIO
Psec
psec
Unit
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
dB
dB
dB
dB
V
V