MAX97200AEVKIT+ Maxim Integrated Products, MAX97200AEVKIT+ Datasheet

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MAX97200AEVKIT+

Manufacturer Part Number
MAX97200AEVKIT+
Description
KIT EVALUATION FOR MAX97200
Manufacturer
Maxim Integrated Products
Datasheets

Specifications of MAX97200AEVKIT+

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
19-4981; Rev 2; 3/11
The MAX97200 is a 45mW Class H headphone amplifier
that runs from a single low 1.8V supply voltage and employs
Maxim’s second-generation DirectDrive
The MAX97200 features a Dual ModeK internal charge
pump to generate the power rails for the amplifier. The
charge-pump output can be QPVIN/2 or QPVIN depend-
ing on the amplitude of the output signal. When the out-
put voltage is low, the power-supply voltage is QPVIN/2.
When the output signal demands larger output voltage,
the charge pump switches modes so that a greater
power-supply voltage is realized and more output power
can be delivered to the load.
Second-generation DirectDrive technology improves
power consumption when compared to first-generation
DirectDrive amplifiers. The MAX97200 can be powered
from a regulated 1.8V and have similar power consump-
tion to a traditional DirectDrive amplifier that is powered
from 0.9V.
Maxim’s DirectDrive architecture uses an inverting
charge pump to derive a negative voltage supply. The
headphone amplifier is powered between the positive
supply and the generated negative rail. This scheme
allows the audio output signal to be biased about
ground, eliminating the need for large DC-blocking
capacitors between the amplifier output and the head-
phone load.
Low-output offset voltage provides very good click-and-
pop performance both into and out of shutdown. High
signal-to-noise ratio maintains system fidelity.
The MAX97200 is available in a tiny, 12-bump wafer
level packaging (WLP 1.27mm x 1.65mm) with a small,
0.4mm lead pitch and specified over the -40NC to +85NC
extended temperature range.
DirectDrive is a registered trademark of Maxim Integrated
Products, Inc.
Dual Mode is a trademark of Maxim Integrated Products, Inc.
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.
Cellular Phones
Smartphones
MP3 Players
VoIP Phones
Low-Power, Low-Offset, Dual Mode, Class H
_______________________________________________________________ Maxim Integrated Products 1
General Description
Applications
DirectDrive Headphone Amplifier
technology.
S Second-Generation DirectDrive Technology
S Dynamic, Class H, Dual Mode Charge Pump
S Low Voltage Operation, V
S Low Quiescent Current, 1.15mA (typ) at V
S Eliminates Large Output DC-Blocking Capacitors
S Industry-Leading Click-and-Pop Performance
S High-Fidelity, SNR 105dB (5.6µV Output Noise)
S Output Power 34mW into 32I (THD+N 1%)
S Output Power 45mW into 16I (THD+N 10%)
S Tiny, 12-Bump, 1.27mm x 1.65mm (0.4mm Lead
Note: All devices operate over the -40°C to +85°C tempera-
ture range.
+Denotes a lead(Pb)-free and RoHS-compliant package.
APPLICATIONS
MAX97200AEWC+
MAX97200BEWC+
PROCESSOR
1.8V
Pitch) WLP Package
PART
RIGHT AUDIO
LEFT AUDIO
INPUT
INPUT
SHDN
Typical Operating Circuit
MAX97200
Ordering Information/
GAIN
(dB)
3
0
CHARGE
PUMP
PVIN
Selector Guide
LEFT AUDIO OUTPUT
RIGHT AUDIO
PIN-
PACKAGE
12 WLP
12 WLP
OUTPUT
= 1.8V
Features
PVIN
MARK
TOP
ABG
ABF
=

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MAX97200AEVKIT+ Summary of contents

Page 1

... MP3 Players VoIP Phones DirectDrive is a registered trademark of Maxim Integrated Products, Inc. Dual Mode is a trademark of Maxim Integrated Products, Inc. _______________________________________________________________ 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. DirectDrive Headphone Amplifier ...

Page 2

Low-Power, Low-Offset, Dual Mode, Class H DirectDrive Headphone Amplifier ABSOLUTE MAXIMUM RATINGS PVIN or PVDD to PGND .......................................-0.3V to +2.2V GND to PGND ......................................................-0.3V to +0.3V PVSS to PGND .....................................................-2.2V to +0.3V OUT_ and IN_ to GND ............. (PVSS - ...

Page 3

Low-Power, Low-Offset, Dual Mode, Class H ELECTRICAL CHARACTERISTICS (continued 1.8V 0V, V PVIN PGND GND Typical values are +25NC) (Note 2) A PARAMETER SYMBOL Output Voltage Threshold t Charge-Pump Mode Transition ...

Page 4

Low-Power, Low-Offset, Dual Mode, Class H DirectDrive Headphone Amplifier ELECTRICAL CHARACTERISTICS (continued 1.8V 0V, V PVIN PGND GND Typical values are +25NC) (Note 2) A PARAMETER SYMBOL DIGITAL INPUT (SHDN) Input ...

Page 5

Low-Power, Low-Offset, Dual Mode, Class 1.8V 0V, V PVIN PGND GND unless otherwise noted.) OUTPUT POWER vs. LOAD RESISTANCE 10% THD + THD + N ...

Page 6

Low-Power, Low-Offset, Dual Mode, Class H DirectDrive Headphone Amplifier (V = 1.8V 0V, V PVIN PGND GND unless otherwise noted.) SUPPLY MODE SWITCHING R = 16I L 20ms/div 6 ______________________________________________________________________________________ Typical Operating Characteristics (continued) = 1.8V, ...

Page 7

Low-Power, Low-Offset, Dual Mode, Class H DirectDrive Headphone Amplifier BUMP NAME A1 OUTR Right Amplifier Output A2 PVSS Negative Charge-Pump Output. Connect a 1FF capacitor between PVSS and PGND. A3 C1N Charge-Pump Flying Cap Negative Connection. Connect 1FF capacitor between ...

Page 8

Low-Power, Low-Offset, Dual Mode, Class H DirectDrive Headphone Amplifier Detailed Description The MAX97200 is a 45mW Class H headphone ampli- fier that runs from a single low 1.8V supply voltage and employs Maxim’s second-generation DirectDrive technology. Maxim’s DirectDrive architecture uses ...

Page 9

Low-Power, Low-Offset, Dual Mode, Class H Dual Mode Charge Pump The MAX97200’s Dual Mode, charge pump outputs either QPVIN/2 in high-efficiency mode or QPVIN in high- power mode, resulting in a power-supply differential of 1.8V or 3.6V. The charge-pump mode ...

Page 10

Low-Power, Low-Offset, Dual Mode, Class H DirectDrive Headphone Amplifier R is the amplifier’s input resistance value. Choose C IN such that f is well below the lowest frequency of -3dB interest. Setting f too high affects the amplifier’s low -3dB ...

Page 11

Low-Power, Low-Offset, Dual Mode, Class H DirectDrive Headphone Amplifier Simplified Functional Diagram 1.8V C4 10µF PVIN C4 MAX97200 R FB PVDD INL C1 B1 OUTL R IN INR C2 A1 OUTR R IN PVSS SHDN PVSS ...

Page 12

Low-Power, Low-Offset, Dual Mode, Class H DirectDrive Headphone Amplifier For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may ...

Page 13

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2011 Maxim Integrated Products © ...

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