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MAX97000 Datasheet(PDF) 6 Page - Maxim Integrated Products

Part No. MAX97000
Description  Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX97000 Datasheet(HTML) 6 Page - Maxim Integrated Products

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Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifier
6
ELECTRICAL CHARACTERISTICS (continued)
(VLDOIN = VPVDD = VSHDN = 3.7V, VGND = VPGND = 0V. Input signal applied at INA configured single-ended, preamp gain = 0dB,
HPLVOL = HPRVOL= SPKVOL = 0dB, speaker loads (ZSPK) connected between OUTP and OUTN. Headphone loads (RHP) con-
nected from HPL or HPR to GND. SDA and SCL pullup voltage = 1.8V. ZSPK = J, RHP = J. CC1P-C1N = CHPVDD = CHPVSS = CBIAS
= 1FF. TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Maximum Input Signal Swing
Preamp = 0dB
2.3
VP-P
Preamp = +18dB
0.29
Preamp = external gain
2.3 x RIN,EX/
RF
Common-Mode Rejection Ratio
CMRR
f = 1kHz (differential
input mode)
Gain = 0dB
55
dB
Gain = +18dB
32
Input DC Voltage
IN__ inputs
1.125
1.2
1.275
V
Bias Voltage
VBIAS
1.13
1.2
1.27
V
SPEAKER AMPLIFIER
Output Offset Voltage
VOS
TA = +25NC, SPKM = 1
Q
0.5
Q
4
mV
TA = +25NC, SPKVOL = 0dB, SPKMIX = 0x01,
IN_DIFF = 0V
Q
1.5
Click-and-Pop Level
KCP
Peak voltage, TA =
+25NC, A-weighted,
32 samples per
second, volume at
mute (Note 2)
Into shutdown
-70
dBV
Out of shutdown
-70
Power-Supply Rejection Ratio
PSRR
TA = +25NC (Note 2)
VPVDD = 2.7V to 5.5V
50
75
dB
f = 217Hz,
VRIPPLR = 200mVP-P
65
f = 1kHz,
VRIPPLR = 200mVP-P
65
f = 20kHz,
VRIPPLR = 200mVP-P
59
Output Power
THD+N P 1%,
f = 1kHz,
ZSPK = 8I + 68FH
(Note 3)
VPVDD = 4.2V
930
mW
VPVDD = 3.7V
725
VPVDD = 3.3V
562
Total Harmonic Distortion +
Noise
THD+N
f = 1kHz, POUT = 360mW, TA = +25NC,
ZSPK = 8I + 68FH
0.05
0.6
%
Signal-to-Noise Ratio
SNR
A-weighted, SPKMIX
= 0x03, referenced to
725mW
IN_DIFF = 0
(single-ended)
93
dB
IN_DIFF = 1 (differential)
93
Oscillator Frequency
fOSC
250
kHz
Spread-Spectrum Bandwidth
Q
20
kHz
Gain
11.5
12
12.5
dB
Current Limit
1.5
A
Efficiency
E
POUT = 725mW, f = 1kHz, ZSPK = 8I + 68FH
87
%
Output Noise
A-weighted, (SPKMIX = 0x01), IN_DIFF = 1,
SPKVOL = 0dB
50
F
VRMS


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