19-5156; Rev 0; 2/10
MAX97200A Evaluation Kit
General Description
The MAX97200A evaluation kit (EV kit) is a fully
assembled and tested circuit board that evaluates the
MAX97200A. The MAX97200A is a 20mW Class G head-
phone amplifier that employs Maxim’s second-generation
DirectDrive
M
technology.
The MAX97200A EV kit provides 3dB gain, is powered
from a 1.8V single power supply, and includes a shut-
down input. The MAX97200A EV kit also evaluates the
MAX97200B. Request a free MAX97200B IC sample
from the factory when ordering the MAX97200B EV kit.
S
1.8V Single-Supply Operation
S
20mW Class G Headphone Amplifier
S
3dB Gain
S
Low-Quiescent Current, 1.15mA at PVIN = 1.8V
S
Low-Power Shutdown Input
S
Evaluates the MAX97200B (with IC Replacement)
S
Fully Assembled and Tested
Features
Evaluates: MAX97200A/MAX97200B
Ordering Information
PART
MAX97200AEVKIT+
TYPE
EV Kit
+Denotes
lead(Pb)-free and RoHS compliant.
Component List
DESIGNATION
QTY
DESCRIPTION
10FF
Q20%,
6.3V X5R
ceramic capacitor (0603)
Murata GRM188R60J106M
TDK C1608X5R0J106M
0.1FF
Q10%,
25V X7R
ceramic capacitor (0603)
Murata GRM188R71E104K
TDK C1608X7R1E104K
1FF
Q10%,
10V X7R
ceramic capacitors (0603)
Murata GRM188R71C105K
TDK C1608X7R1C105K
DESIGNATION
GND, OUTL,
OUTR, PVDD,
PVSS
J1
JU1
R1
U1
—
—
QTY
5
1
1
1
1
1
1
DESCRIPTION
Test points
3.5mm stereo headphone jack
2-pin header
10kI
Q5%
resistor (0603)
Class G headphone amplifier
(12 WLP)
Maxim MAX97200AEWC+T
Shunt
PCB MAX97200A
EVALUATION KIT+
C1
1
C2
1
C3–C7
5
Component Suppliers
SUPPLIER
Murata Electronics North America, Inc.
TDK Corp.
PHONE
770-436-1300
847-803-6100
WEBSITE
www.murata-northamerica.com
www.component.tdk.com
Note:
Indicate that you are using the MAX97200A when contacting these component suppliers.
DirectDrive is a registered 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.
MAX97200A Evaluation Kit
Evaluates: MAX97200A/MAX97200B
Quick Start
•
•
•
1.8V DC supply
7)
8)
9)
Connect the left channel of the stereo audio source
to INL.
Connect the right channel of the stereo audio
source to INR.
Connect the ground of the stereo audio source to
GND.
Recommended Equipment
Stereo audio signal source
Pair of stereo headphones
The MAX97200A EV kit is fully assembled and test-
ed. Follow the steps below to verify board operation.
Caution: Do not turn on the power supply until all
connections are completed.
1)
2)
3)
4)
Verify that shunts are installed as follows:
JU1: Installed (device enabled)
Set the power-supply output to 1.8V.
Disable the power-supply output.
Connect the power-supply ground to the GND pad
and the power-supply positive output to the VIN pad
on the EV kit.
Connect the headphones to the stereo headphone
jack (J1) provided on the EV kit.
Verify that the audio source output is disabled.
Procedure
10) Enable the stereo audio source.
11) Enable the power-supply output.
12) Verify that the headphones are playing the audio
source signal.
Jumper Configuration
Jumper JU1 enables or disables the headphone ampli-
fier. See Table 1 for jumper JU1 configuration.
Headphone Amplifier Shutdown
Table 1. Shutdown Input (JU1)
SHUNT POSITION
Installed*
Not installed
*Default
position.
SHDN
PIN
Connected to VIN
Connected to GND
AMPLIFIER
Enabled
Disabled
5)
6)
2
______________________________________________________________________________________
MAX97200A Evaluation Kit
Evaluates: MAX97200A/MAX97200B
Figure 1. MAX97200A EV Kit Schematic
_______________________________________________________________________________________
3
MAX97200A Evaluation Kit
Evaluates: MAX97200A/MAX97200B
1.0”
Figure 2. MAX97200A EV Kit Component Placement
Guide—Component Side
1.0”
Figure 3. MAX97200A EV Kit PCB Layout—Component Side
1.0”
Figure 4. MAX97200A EV Kit PCB Layout—Layer 2
4
______________________________________________________________________________________
MAX97200A Evaluation Kit
Evaluates: MAX97200A/MAX97200B
1.0”
Figure 5. MAX97200A EV Kit PCB Layout—Layer 3
1.0”
Figure 6. MAX97200A EV Kit PCB Layout—Solder Side
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
©
5
2010 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
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