STAC9460 Datasheet, PDF (7/21 Pages) List of Unclassifed Manufacturers – Two and Six-Channel, 24-Bit, 192 kHz Audio Codec

PRELIMINARY INFORMATION 8/24/01
STAC9460/62
Two and Six-Channel, 24-Bit, 192 kHz Audio Codec
3.5. STAC9460 Analog Performance Characteristics
(T_ambient = 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 KΩ/50 pF load,
Testbench Characterization BW: 20 Hz – 20 kHz, 0 dB settings on all gain stages)
PARAMETER
Full Scale Input Voltage:
Differential Inputs
Mic Inputs
Full Scale Output Voltage: Line Output 5V
Analog Frequency Response (Note 1)
Digital S/N (Note 2)
D/A 5V
A/D 5V
Total Harmonic Distortion: Line Output (Note 3)
D/A Frequency Response (Note 4)
A/D Frequency Response (Note 4)
Transition Band(Note 6)
Stop Band(Note 6)
Deviation from Linear Phase (Note 6)
Stop Band Rejection
Out-of-Band Rejection (Note 7)
Group Delay
Power Supply Rejection Ratio (1kHz)
Crosstalk between Input channels
Spurious Tone Rejection
Mic Gain Step Size
Mic Input Impedance
Differential Input Impedance
Input Capacitance
VREFout
Interchannel Gain Mismatch ADC
Interchannel Gain Mismatch DAC
Gain Drift
DAC Offset Voltage
External Load Impedance
Mute Attenuation (Vrms input)
MIN
-
-
-
20
-
-
-
20
20
19,200
28,800
-
-85
-
-
-
-
-
-
-
-
-
-
-
-
-
-
10
90
TYP
1.0
1.0
1.0
-
104
100
90
-
-
-
-
-
-
-40
-
-40
-
-100
1.5
40
18
15
0.45 x AVdd
-
-
100
10
-
96
MAX
-
-
-
20,000
-
-
-
20,000
20,000
28,800
-
1
-
-
1
-
-85
-
-
-
-
-
0.5
0.5
-
50
-
-
UNITS
Vrms
Vrms
Vrms
Hz
dB
dB
dB
Hz
Hz
Hz
Hz
degree
dB
dB
ms
dB
dB
dB
dB
KΩ
KΩ
pF
V
dB
dB
ppm/ºC
mV
KΩ
dB
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.
2-9460-D1-1-0-0801
7