STAC9271 Datasheet, PDF (17/223 Pages) Integrated Device Technology – 10-CHANNEL HIGH DEFINITION AUDIO CODEC

STAC9271/9272/9273/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC
PC AUDIO
2.3. STAC927x Family 5 V, 4.5 V, 4.0 V and 3.3 V Analog Performance Characteristics
(T_ambient = 25 ºC, AVdd = Supply ± 5%, DVdd = 3.3 V ± 5%, AVss=DVss=0 V; 1 kHz input sine wave; Sample Fre-
quency = 48 kHz; 0 dB = 1 VRMS, 10 KΩ/50 pF load, Testbench Characterization BW: 20 Hz – 20 kHz, 0 dB settings
on all gain stages)
Parameter
Conditions
AVdd Min Typ Max
Unit
Digital to Analog Converters
Resolution
All
24
Bits
SNR - DAC to All Line-Out Ports
(Note 4)
5V
105
Analog Mixer Disabled, PCM data
4.5 V
4.0 V
101
100
dB
3.3 V
98
5V
90
THD+N - DAC to All Line-Out Ports
(Note 3)
Analog Mixer Disabled, -3dB Signal, 4.5 V
88
PCM data
4.0 V
86
dB
3.3 V
84
SNR - DAC to All Line-Out Ports
(Note 4)
5V
90
Analog Mixer Enabled, PCM data
4.5 V
4.0 V
88
87
dB
3.3 V
85
5V
80
THD+N - DAC to All Line-Out Ports
(Note 3)
Analog Mixer Enabled, -3dB Signal, 4.5 V
78
PCM data
4.0 V
77
dB
3.3 V
75
Dynamic Range: DAC to All Line Out Ports
(Note2)
-60dB Signal Level
5V
95
4.5 V
4.0 V
-
93
92
-
dB
3.3 V
90
5V
105
SNR - DAC to All Headphone Ports
(Note 4)
Analog Mixer Disabled, 10 KΩ load, 4.5 V
101
PCM data
4.0 V
100
dB
3.3 V
98
5V
85
THD+N - DAC to All Headphone Ports
Analog Mixer Disabled, -3dB Signal, 4.5 V
83
(Note 3)
10 KΩ load, PCM data
4.0 V
82
dB
3.3 V
80
SNR - DAC to All Headphone Ports with 2
Headphone Outputs Operating
(Note 4)
Analog Mixer Disabled, 32 Ω load, PCM
data
5V
4.5 V
4.0 V
3.3 V
100
98
97
95
dB
THD+N - DAC to All Headphone Ports with 2
Headphone Outputs Operating
(Note 3)
Analog Mixer Disabled, -3dB Signal,
32 Ω load, PCM data
5V
4.5 V
4.0 V
3.3 V
82
80
79
77
dB
5V
100
SNR - DAC to All Headphone Ports
Analog Mixer Disabled, 32 Ω load, PCM 4.5 V
98
(Note 4)
data
4.0 V
97
dB
3.3 V
95
IDT™ 10-CHANNEL HIGH DEFINITION AUDIO CODEC
17
IDT CONFIDENTIAL
STAC9271/9272/9273/9274 V 1.0 MARCH2007