MAX9851(2006) 데이터 시트보기 (PDF) - Maxim Integrated
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MAX9851
(Rev.:2006)
(Rev.:2006)
Maxim Integrated
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
DAC/ADC DATA RATE ACCURACY
CONDITIONS
fS = 8kHz (voice
mode)
MIN TYP MAX UNITS
0
fS = 16kHz (voice
0
mode)
LRCLK Output Sample Rate
Deviation From Ideal (Note 10)
Master mode with
ADC SDOUT enabled;
audio mode, unless
otherwise noted
fS = 8kHz
fS = 11.025kHz
fS = 12kHz
fS = 16kHz
fS = 22.05kHz
fS = 24kHz
fS = 32kHz
fS = 44.1kHz
fS = 48kHz
0.31
0.27
0.31
%
-0.43
-0.41
0.31
-0.43
-1.74
-0.43
LRCLK Input Sample Rate Range
Synchronous or asynchronous input (slave
mode with only DAC enabled)
7.8
50
kHz
DAC TRANSDUCER/VIBE OUTPUT
Vibe PGA Range
TGAIN 11 steps in 6dB increments
-30
+30
dB
0dBFS Output Voltage
1-bit DAC output externally filtered pullup
resistor to DVDD (TGAIN = 0dB)
DVDD /
2
VP-P
Output Offset Voltage
1-bit DAC output externally filtered, no
signal, pullup resistor to DVDD
DVDD /
V
2
Vibe PGA Output Resolution
PGAR
10
bits
fS = 8kHz, 16kHz, or 32kHz
483
LPF Passband -3dB Cutoff
fPBL fS = 11.025kHz, 22.05kHz, or 44.1kHz
665
Hz
fS = 12kHz, 24kHz, or 48kHz
724
LPF Stopband Attenuation
fSBL
f > 3.5xfPBL
27
dB
1-Bit DAC Digital Dynamic Range
DRV
Ideal dynamic range (0 to 8kHz or 0 to fS / 2
for fS < 16kHz)
48
dB
1-Bit DAC Operating Frequency
fV
OPEN-DRAIN DIGITAL OUTPUT (VIBE)
650
kHz
Output High Current
Output Low Voltage
IOH
VOUT = DVDD
VOL
IOL = 3mA
3
µA
0.4
V
8 _______________________________________________________________________________________
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