stac9251h5taea1xr Integrated Device Technology, stac9251h5taea1xr Datasheet - Page 14

• Manufacturer Part Number: stac9251h5taea1xr
• Description: Two-channel High Definition Audio Codec With Modem And Dual Digital Microphone Interfaces
• Manufacturer: Integrated Device Technology

IDT™
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
STAC9250/9251
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
2.4.
2.5.
Attenuation, Gain Step Size ANALOG
Attenuation, Gain Step Size DIGITAL
Input Impedance
Input Capacitance
VREFout
VREF
Interchannel Gain Mismatch ADC
Interchannel Gain Mismatch DAC
Gain Drift
DAC Offset Voltage
Deviation from Linear Phase
All Analog Outputs Load Resistance
All Analog Outputs Load Capacitance
HEADPHONE_OUT Load Resistance
HEADPHONE_OUT Load Capacitance
Mute Attenuation
PLL lock time
PLL (or HD Audio Bit CLK) 24.576 MHz clock jitter
1. With +30dB Boost on, 1.00 Vrms with Boost off.
2. Ratio of Full Scale signal to noise output with -60dB signal, measured “A weighted” over a 20 Hz to a 20 KHz
3. ± 1dB limits for Line Output & 0dB gain, at -20dBV
4. Amplitude of THD+N, measured with A-weighting filter, over 20 Hz to 20 KHz bandwidth.
5. Ratio of Full Scale signal to idle channel noise output is measured “A weighted” over a 20 Hz to a 20 KHz
6. Peak-to-Peak Ripple over Passband meets ± 0.25dB limits, 48 KHz Sample Frequency.
7. Stop Band rejection determines filter requirements. Out-of-Band rejection determines audible noise.
8. The integrated Out-of-Band noise generated by the DAC process, during normal PCM audio playback, over a
bandwidth.
bandwidth. (AES17-1991 Idle Channel Noise or EIAJ CP-307 Signal-to-noise Ratio).
bandwidth 28.8 to 100 KHz, with respect to a 1 Vrms DAC output.
STAC9250/9251 4V Analog Performance Characteristics
STAC9250/9251 3.3V Analog Performance Characteristics
If you are interested in using the STAC9250/9251 at 4V Analog, please contact IDT for more infor-
mation.
If you are interested in using the STAC9250/9251 at 3.3V Analog, please contact IDT for more infor-
mation.
Parameter
14
Min
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
STAC9250/9251
0.45 X AVdd
0.5 X AVdd
0.75
Typ
100
100
100
1.5
50
15
10
10
32
96
5
-
-
-
-
Max
200
300
0.5
0.5
10
50
1
-
-
-
-
-
-
-
-
-
-
-
PC AUDIO
V 1.2 01/08
ppm/ºC
μsec
psec
Unit
deg.
KW
mV
KΩ
dB
dB
pF
dB
dB
pF
pF
dB
V
Ω
V