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参数资料
| 型号： | CMOD232+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 34/36页 |
| 文件大小： | 0K |
| 描述： | EVAL SYSTEM FOR MAX9850 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 系列： | * |
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MAX9850
Stereo Audio DAC with DirectDrive
Headphone Amplifier
_______________________________________________________________________________________
7
Note 5: DAC SNR measured from DAC inputs to OUTL and OUTR.
Note 6: Headphone amplifier SNR measured from line inputs to headphone outputs.
Note 7: GPIO is 100k
Ω to ground when DVDD < VOH < 3.6V.
Note 8: CB is in pF.
Note 9: fICLK derived by dividing fMCLK by 1, 2, 3, or 4. See the Registers and Bit Descriptions section.
TYPICAL POWER DISSIPATION AT AVDD = 1.8V (No Headphone/Line Output Load)
MODE
AVDD POWER
DVDD POWER
PVDD POWER
TOTAL POWER
Full Operation (Note 1)
4.93mW
3.76mW
5.00mW
13.70mW
DAC to Line Outputs, Headphones Disabled
3.11mW
3.76mW
3.22mW
10.10mW
Line Inputs to Line Outputs and Headphone
Outputs, DAC Disabled
3.22mW
0.085mW
3.40mW
6.71mW
Line Inputs to Line Outputs, DAC and
Headphones Disabled
1.39mW
0.085mW
1.61mW
3.08mW
Full Shutdown
2.7W
0.5W
<0.1W
3.2W
Typical Operating Characteristics
(DVDD = AVDD = PVDD = 3.0V, AGND = DGND = PGND = 0V, C1 = 0.47F, C2 = 2.2F, CNREG = CPREG = CREF = 1F, fS = 48kHz,
fMCLK = 12.288MHz, master integer mode, headphone volume set to +6dB, both channels driven in-phase, TA = +25°C, unless
otherwise noted. fIN = 984.375Hz, A-weighted THD+N.)
10
0.001
020
10
40
60
TOTAL HARMONIC DISTORTION PLUS NOISE
(DAC TO HP) vs. POWER OUT
0.01
0.1
1
MAX9850toc01
POWER OUT (mW)
THD+N
(%)
30
50
AVDD = 1.8V
RL = 16
Ω
fIN = 1kHz
fIN = 10kHz
fIN = 20Hz
10
0.001
020
10
40
60
TOTAL HARMONIC DISTORTION PLUS NOISE
(LINE IN TO HP) vs. POWER OUT
0.01
0.1
1
MAX9850toc02
POWER OUT (mW)
THD+N
(%)
30
50
AVDD = 1.8V
RL = 16
Ω
fIN = 1kHz
fIN = 10kHz
fIN = 20Hz
10
0.001
020
10
40
50
TOTAL HARMONIC DISTORTION PLUS NOISE
(DAC TO HP) vs. POWER OUT
0.01
0.1
1
MAX9850toc03
POWER OUT (mW)
THD+N
(%)
30
AVDD = 1.8V
RL = 32
Ω
fIN = 1kHz
fIN = 10kHz
fIN = 20Hz
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