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
CONDITIONS
Line In to Speaker Out Voltage
Gain
+12.1dB volume setting, PVDD = +5V
Output Offset Voltage
VOS
Total Harmonic Distortion Plus
Noise
THD+N
RL = 8Ω, POUT = 125mW, f = 1kHz, BW =
22Hz to 20kHz, +10.1dB volume setting
Dynamic Range
DR
+12.1dB volume setting, A-weighted
PVDD = 2.6V to 5.5V
Power-Supply Rejection Ratio
PSRR VRIPPLE = 100mVP-P, f = 217Hz
VRIPPLE = 100mVP-P, f = 10kHz
Crosstalk
RL = 8Ω, POUT = 100mW, f = 1kHz
Channel Gain Matching
AVMATCH
Class D Switching Frequency
Click-and-Pop Level
Efficiency
Peak voltage, 32-
KCP
samples per second,
A-weighted
RL = 8Ω (Note 11)
Into shutdown
Out of shutdown
POUT = 1W per channel, RL = 8Ω
LINE OUTPUT AMPLIFIERS (MAX9853) (Note 12)
Line Output Common-Mode
Voltage
MIN
4.0
50
1.13
TYP
4.2
10
0.03
90
70
70
55
60
±4
1100
-35
-35
75
1.23
MAX
4.4
100
UNITS
V/V
mV
%
dB
dB
dB
%
kHz
dBV
%
1.33
V
Line Output Differential Offset
Voltage
-90
+90
mV
Maximum Differential Output
Voltage
3.16 4.16 4.74
VP-P
Dynamic Range
DR
1.4mVRMS (-60dB) output voltage,
A-weighted
88
dB
Total Harmonic Distortion Plus
Noise
Power-Supply Rejection Ratio
Line Input to Line Output Gain
Accuracy
THD+N
PSRR
fIN = 1kHz, VOUT = 2VP-P, BW = 22Hz to
20kHz
AVDD = 2.6V to 3.6V
VRIPPLE = 100mVP-P, f = 217Hz
VRIPPLE = 100mVP-P, f = 20kHz
0.004
%
57
100
95
dB
55
-0.4
+0.6
dB
10 ______________________________________________________________________________________
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