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MAX97000 Datasheet(PDF) 1 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
Logo MAXIM - Maxim Integrated Products

MAX97000 Datasheet(HTML) 1 Page - Maxim Integrated Products

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_______________________________________________________________ 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.
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).
Applications
Cell Phones
Portable Multimedia Players
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
19-5004; Rev 0; 11/09
Ordering Information
Simplified Block Diagram
+Denotes a lead(Pb)-free/RoHS-compliant package.
EVALUATION
KIT
AVAILABLE
PART
TEMP RANGE
PIN-PACKAGE
MAX97000EWA+
-40NC to +85NC
25 WLP
STEREO/
MONO
INPUT
STEREO/
MONO
INPUT
VOLUME
CLASS D
AMPLIFIER
CLASS H
AMPLIFIER
CHARGE
PUMP
VOLUME
POWER SUPPLY
BATTERY
2.7V TO 5.5V
CONTROL
I2C
SWITCH
LIMITER
MAX97000


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