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PDF MAX97000 Data sheet ( Hoja de datos )
| Número de pieza | MAX97000 | |
| Descripción | Audio Subsystem | |
| Fabricantes | Maxim Integrated Products | |
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Hay una vista previa y un enlace de descarga de MAX97000 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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19-5004; Rev 0; 11/09
EVAALVUAAILTAIOBNLEKIT
Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifier
General Description
The MAX97000 audio subsystem combines a mono
speaker amplifier with a stereo headphone amplifier and
an analog DPST switch. The headphone and speaker
amplifiers have independent volume control and on/off
control. The four inputs are configurable as two differen-
tial inputs or four single-ended inputs.
The entire subsystem is designed for maximum efficiency.
The high-efficiency 725mW Class D speaker amplifier
operates directly from the battery and consumes no more
than 1FA in shutdown mode. The Class H headphone
amplifier utilizes a dual-mode charge pump to maximize
efficiency while outputting a ground-referenced signal
that does not require output coupling capacitors.
The speaker amplifier incorporates a distortion limiter to
automatically reduce the volume level when excessive
clipping occurs. This allows high gain for low-level sig-
nals without compromising the quality of large signals.
All control is performed using the 2-wire, I2C interface.
The MAX97000 operates in the extended -40NC to +85NC
temperature range, and is available in the 2mm x 2mm,
25-bump WLP package (0.4mm pitch).
Features
S 2.7V to 5.5V Single Supply Voltage
S 725mW Speaker Output (VPVDD = 3.7V, ZSPK = 8I
+ 68µH)
S 40mW/Channel Headphone Output (RHP = 16I)
S Low-Emission Class D Amplifier
S Efficient Class H Headphone Amplifier
S Ground-Referenced Headphone Outputs
S Two Stereo Single-Ended/Mono Differential Inputs
S Integrated Distortion Limiter (Speaker Outputs)
S Integrated DPST Analog Switch
S No Clicks and Pops
S TDMA Noise Free
S 2mm x 2mm, 25-Bump 0.4mm Pitch WLP Package
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX97000EWA+ -40NC to +85NC
25 WLP
+Denotes a lead(Pb)-free/RoHS-compliant package.
Applications
Cell Phones
Portable Multimedia Players
www.DataSheet4U.com
Simplified Block Diagram
BATTERY
2.7V TO 5.5V
I2C
POWER SUPPLY
STEREO/
MONO
INPUT
CONTROL
LIMITER
VOLUME
MAX97000
CLASS D
AMPLIFIER
STEREO/
MONO
INPUT
VOLUME
SWITCH
CLASS H
AMPLIFIER
CHARGE
PUMP
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1 page  
Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifier
ABSOLUTE MAXIMUM RATINGS
(Voltages with respect to GND.)
VDD, HPVDD........................................................-0.3V to +2.2V
PVDD, LDOIN.......................................................-0.3V to +6.0V
PGND....................................................................-0.1V to +0.1V
HPVSS..................................................................-2.2V to + 0.3V
C1N...................................... (HPVSS - 0.3V) to (HPVDD + 0.3V)
C1P..........................................................- 0.3V to (VDD + 0.3V)
HPL, HPR.............................. (HPVSS - 0.3V) to (HPVDD +0.3V)
INA1, INA2, INB1, INB2, BIAS..............................-0.3V to +6.0V
SDA, SCL, SHDN..................................................-0.3V to +6.0V
COM1, COM2, NC1, NC2,
OUTP, OUTN.......................................-0.3V to (PVDD + 0.3V)
Continuous Current In/Out of PVDD, PGND, OUT_....... Q800mA
Continuous Current In/Out of HPR, HPL,
VDD, LDOIN............................................................... Q140mA
Continuous Current In/Out of COM1,
COM2, NC1, NC2...................................................... Q150mA
Continuous Input Current (all other pins)........................ Q20mA
Duration of OUT_ Short Circuit to GND
or PVDD.................................................................Continuous
Duration of Short Circuit Between OUTP
and OUTN..............................................................Continuous
Duration of HP_ Short Circuit to GND or VDD...........Continuous
Continuous Power Dissipation (TA = +70NC) Multilayer Board
25 WLP (derate 19.2mW/NC above +70NC).................850mW
Junction Temperature......................................................+150NC
Operating Temperature Range........................... -40NC to +85NC
Storage Temperature Range............................ -65NC to +150NC
Lead Temperature (soldering, 10s).................................+260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(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
Speaker Amplifier Supply-
Voltage Range
SYMBOL
CONDITIONS
VPVDD Guaranteed by PSRR test
MIN TYP MAX UNITS
2.7 5.5 V
LDO Input Supply-Voltage
Range
VLDOIN Guaranteed by PSRR test
2.5 5.5 V
www.DataSheet4U.com
Quiescent Supply Current
Shutdown Current
ISHDN
Low-power mode, TA = +25NC, ILDOIN
LPMODE = 0x01
IPVDD
HP mode, TA = +25NC, stereo
SE input on INA, INB disabled
SPK mode, TA = +25NC mono
differential input on INB, INA
disabled
SPK + HP mode, TA = +25NC
stereo SE input on INA, INB
disabled
ILDOIN
IPVDD
ILDOIN
IPVDD
ILDOIN
IPVDD
TA = +25NC, internal gain,
software
IPVDD
ILDOIN
TA = +25NC, internal gain, IPVDD + ILDOIN,
hardware
1.45
0.4
1.45
0.79
0.42
1.38
1.45
1.8
90
60
2
0.7
2
1.2
0.75
2.2
2
2.7
175
110
1
mA
FA
Turn-On Time
tON
Time from power-on to full operation
including soft-start
8 ms
Input Resistance
Feedback Resistance
RIN
TA = +25NC,
internal gain
Gain = -6dB, -3dB
Gain = 0dB to +9dB
Gain = +18dB
16
5.5
41.2
20.6
7.2
27
9.5
RF TA = +25NC, external gain
19 20 21
kI
kI
5
5 Page 
Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifier
Typical Operating Characteristics (continued)
(VLDOIN = VPVDD = 3.7V, VGND = VPGND = 0V. Single-ended inputs, preamp gain = 0dB, HPLVOL = HPRVOL = SPKVOL = 0dB. Speaker
loads (ZSPK) connected between OUTP and OUTN. Headphone loads (RHP) connected from HPL or HPR to GND. ZSPK = ∞, RHP = ∞.
CC1P-C1N = CHPVDD = CHPVSS = CBIAS = 1μF. TA = +25°C, unless otherwise noted.)
SPEAKER AMPLIFIER
THD+N vs. FREQUENCY
10
VPVDD = 3.7V
ZSPRK = 8I + 68µF
1
THD+N vs. FREQUENCY
10
VPVDD = 3.7V
ZSPRK = 4I + 33µF
1
THD+N vs. FREQUENCY
10
VPVDD = 3.7V
ZSPRK = 8I + 68µF
1
0.1 POUT = 500mW
0.01
POUT = 200mW
0.1 POUT = 1000mW
0.01 POUT = 200mW
0.001
0.01
0.1 1 10
FREQUENCY (kHz)
100
THD+N vs. OUTPUT POWER
100
VPVDD = 5.0V
ZSPRK = 8I + 68µF
10
1 fIN = 6kHz
www.DataSh0.e1et4UfIN.c=o1mkHz
0.01
fIN = 100Hz
0.001
0
0.5 1.0 1.5 2.0
POUT (mW)
THD+N vs. OUTPUT POWER
100
VPVDD = 4.2V
ZSPRK = 4I + 33µF
10
fIN = 6kHz
1
0.1 fIN = 1kHz
2.5
0.001
0.01
0.1 1 10
FREQUENCY (kHz)
100
THD+N vs. OUTPUT POWER
100
VPVDD = 5.0V
ZSPRK = 4I + 33µF
10
1 fIN = 6kHz
0.1 fIN = 1kHz
0.01
0.001
0
fIN = 100Hz
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
POUT (mW)
THD+N vs. OUTPUT POWER
100
VPVDD = 3.7V
ZSPRK = 8I + 68µF
10
fIN = 6kHz
1
0.1 fIN = 1kHz
0.1
SSM
0.01
FFM
0.001
0.01
0.1 1 10
FREQUENCY (kHz)
100
THD+N vs. OUTPUT POWER
100
VPVDD = 4.2V
ZSPRK = 8I + 68µF
10
1 fIN = 6kHz
0.1 fIN = 1kHz
0.01 fIN = 100Hz
0.001
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
POUT (mW)
THD+N vs. OUTPUT POWER
100
VPVDD = 3.7V
ZSPRK = 4I + 33µF
10
fIN = 6kHz
1
fIN = 1kHz
0.1
0.01
0.001
0
fIN = 100Hz
0.5 1.0 1.5 2.0 2.5 3.0
POUT (mW)
0.01 fIN = 100Hz
0.001
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4
POUT (mW)
0.01
0.001
0
fIN = 100Hz
0.5 1.0 1.5 2.0 2.5
POUT (mW)
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MAX97000.PDF ] | |
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