MAX9851 데이터 시트보기 (PDF) - Maxim Integrated
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MAX9851 Datasheet PDF : 71 Pages
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Stereo Audio CODECs with Microphone, DirectDrive
Headphones, Speaker Amplifiers, or Line Outputs
ELECTRICAL CHARACTERISTICS (continued)
(AVDD = CPVDD = +3V, DVDD = DVDDS2 = +1.8V, PVDD = +3.3V, RHP = 32Ω, ZSPK = 8Ω + 10µH, RREC = 32Ω, ROUTL+ to ROUTL- =
10kΩ, ROUTR+ to ROUTR- = 10kΩ, C1 = 0.22µF, C2 = CNREG = CPREG = CINTMICBIAS, CMBIAS = CREF = 1µF, MCLK = 13MHz, all
PGAs = 0dB, HP/REC volume = -20.0dB, SPK volume = -20.4dB, line output gain = -0.4dB, TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25°C.) (See Functional Diagrams/Typical Operating Circuits).
PARAMETER
SYMBOL
CONDITIONS
ADC DIGITAL FILTER PATH (Stereo Audio Modes)
Passband Cutoff
fPBL
Passband Ripple
f < fPBL
Stopband Cutoff
Stopband Attenuation
fSBL
f > fSBL
Attenuation at fS/2
ADC VOICEBAND HIGHPASS FILTER (S1 Mono Voice Input Path, fS = 8kHz)
Passband Cutoff
fPH
Passband -3dB Cutoff
fP3_H
Passband Ripple
Stopband Cutoff
Stopband Attenuation
f > fPH
fSH
f < fSH
ADC VOICEBAND HIGHPASS FILTER (S1 Mono Voice Input Path, fS = 16kHz)
Passband Cutoff
fPH
Passband -3dB Cutoff
fP3_H
Passband Ripple
f > fPH
Stopband Cutoff
Stopband Attenuation
fSH
f < fSH
ADC VOICEBAND LOWPASS FILTER (S1 Mono Voice Input Path, fS = 8kHz)
Passband Cutoff
fPL
Passband Ripple
Stopband Cutoff
f < fPL
fSL
Stopband Attenuation
f > fSL
ADC VOICEBAND LOWPASS FILTER (S1 Mono Voice Input Path, fS = 16kHz)
Passband Cutoff
fPL
Passband Ripple
f < fPL
Stopband Cutoff
fSL
Stopband Attenuation
ADC DC-BLOCKING FILTER
f > fSL
MIN TYP MAX UNITS
0.44
fS
±0.5
dB
0.58
fS
53
dB
-6.02
dB
175
Hz
130
Hz
±0.2
dB
77
Hz
28
dB
350
Hz
260
Hz
±0.2
dB
154
Hz
28
dB
3500
75
Hz
±0.05
dB
3900
Hz
dB
7000
75
Hz
±0.05
dB
7800
Hz
dB
DC-Blocking Filter -3dB Corner
fC
As a fraction of output sample rate
fS /
1608
Hz
DC Attenuation
Maximum DC Input
DAC/ADC DATA RATE ACCURACY
120
dB
0.125
V
LRCLK Output Sample Rate
Deviation From Ideal (Note 10)
fS = 8kHz to 48kHz (master mode with DAC
only enabled) (See Table 1 for details)
-0.025
+0.025 %
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