MAX9851ETM 查看數據表（PDF） -
MAX9851ETM Datasheet PDF : 0 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
RECEIVER AMPLIFIER (Note 12)
CONDITIONS
MIN TYP MAX UNITS
RL = 16Ω, input signal
80
from LINEIN1
Output Power
f = 1kHz, THD < RL = 16Ω, input signal
POUT 1%, +5.5dB
is the sum of
105
mW
volume setting
LINEIN1+LINEIN2
RL = 32Ω, input signal
35
55
from LINEIN1
Maximum Output Voltage
+4.5dB volume setting, 0dB PGA setting,
input signal 0dBFS from DAC output, only 1 3.09 3.35 3.64
input selected
VP-P
Line In to REC Out Voltage Gain
Output Offset Voltage
Total Harmonic Distortion Plus
Noise
Dynamic Range
Power-Supply Rejection Ratio
Maximum Capacitive Load
Click-and-Pop Level
VOLUME CONTROL/PGAs
Headphone/Receiver Volume
Control Range
VOS
THD+N
DR
PSRR
CL
KCP
+4.5dB volume setting, 0dB PGA setting,
only 1 input selected
RL = 32Ω, POUT = 40mW, f = 1kHz, BW =
22Hz to 20kHz, +3dB volume setting
RL = 16Ω, POUT = 40mW, f = 1kHz, BW =
22Hz to 20kHz, +3dB volume setting
+6dB volume setting, A-weighted
AVDD = 2.6V to 3.3V
VRIPPLE = 100mVP-P, f = 217Hz
VRIPPLE = 100mVP-P, f = 20kHz
No sustained oscillations
Peak voltage, 32 samples per second,
A-weighted, RL = 16Ω (Note 11)
1.54 1.68 1.82
V/V
10
60
mV
0.03
%
0.04
92
dB
60
100
98
dB
65
150
pF
-44.6
dBV
-80
+6.1
dB
Headphone/Receiver Mute
Attenuation
f = 1kHz
100
dB
Speaker Volume Control Range
(MAX9851)
-72.4
+13.7 dB
Speaker Mute Attenuation
(MAX9851)
f = 1kHz
100
dB
Differential Line Output Gain
Control Range (MAX9853)
-78.4
+7.9
dB
Differential Line Output Mute
Attenuation (MAX9853)
f = 1kHz
100
dB
______________________________________________________________________________________ 11
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