2-9460-D1-1-0-0801
7
STAC9460/62
Two and Six-Channel, 24-Bit, 192 kHz Audio Codec
PRELIMINARY
INFORMATION
8/2 4 /0 1
3.5.
STAC9460 Analog Performance Characteristics
(Tambient = 25 °C, AVdd = 5.0V ± 5%, DVdd = 5.0V ± 5%, AVss=DVss=0V; 1 kHz
input sine wave; Sample Frequency = 48 kHz; 0 dB = 1 Vrms, 10 K
Ω/50 pF load,
Testbench Characterization BW: 20 Hz – 20 kHz, 0 dB settings on all gain stages)
Note:
1.
± 1 dB limits. If the sample rate is greater than or equal to 96 kHz the max frequency response becomes
40 kHz.
2.
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).
3.
0 dB gain, 20 kHz BW, 48 kHz Sample Frequency
4.
± 0.25 dB limits. The D/A freq. response becomes 40 kHz with sampling rates > 96 kHz. At ±3dB the
response range is from 20-22,500Hz at 48kHz, or 20-20,000Hz @ 44.1kHz or 20-45,000Hz @ 96kHz.
5.
Transition band is 40-60% of sample rate. Stop band begins at 60% of sample rate.
6.
Digital De-Emphasis OFF.
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.
PARAMETER
MIN
TYP
MAX
UNITS
Full Scale Input Voltage:
Differential Inputs
Mic Inputs
-
-
1.0
1.0
-
-
Vrms
Vrms
Full Scale Output Voltage: Line Output 5V
-
1.0
-
Vrms
Analog Frequency Response (Note 1)
20
-
20,000
Hz
Digital S/N (Note 2)
D/A 5V
A/D 5V
-
-
104
100
-
-
dB
dB
Total Harmonic Distortion: Line Output (Note 3)
-
90
-
dB
D/A Frequency Response (Note 4)
20
-
20,000
Hz
A/D Frequency Response (Note 4)
20
-
20,000
Hz
Transition Band(Note 6)
19,200
-
28,800
Hz
Stop Band(Note 6)
28,800
-
-
Hz
Deviation from Linear Phase (Note 6)
-
-
1
degree
Stop Band Rejection
-85
-
-
dB
Out-of-Band Rejection (Note 7)
-
-40
-
dB
Group Delay
-
-
1
ms
Power Supply Rejection Ratio (1kHz)
-
-40
-
dB
Crosstalk between Input channels
-
-
-85
dB
Spurious Tone Rejection
-
-100
-
dB
Mic Gain Step Size
-
1.5
-
dB
Mic Input Impedance
-
40
-
K
Ω
Differential Input Impedance
-
18
K
Ω
Input Capacitance
-
15
-
pF
VREFout
-
0.45 x AVdd
-
V
Interchannel Gain Mismatch ADC
-
-
0.5
dB
Interchannel Gain Mismatch DAC
-
-
0.5
dB
Gain Drift
-
100
-
ppm/ºC
DAC Offset Voltage
-
10
50
mV
External Load Impedance
10
-
-
K
Ω
Mute Attenuation (Vrms input)
90
96
-
dB
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