MAX9890EVKIT+ [MAXIM]
Fully Assembled and Tested;
| 型号： | MAX9890EVKIT+ |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Fully Assembled and Tested |
| 文件： | 总4页 (文件大小：98K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-4095; Rev 0; 4/08
MAX9890 Evaluation Kit
Evluates:MAX890
General Description
The MAX9890 evaluation kit (EV kit) provides a proven
design to evaluate the MAX9890 stereo click-pop
suppressor.
Features
♦ 2.7V to 5.5V Single-Supply Operation
♦ 3.5mm Stereo Input and Output Jacks
♦ Lead-Free and RoHS-Compliant
♦ Proven PCB Layout
The MAX9890 EV kit printed-circuit board (PCB) comes
with a MAX9890AETA+ installed (200ms switch turn-on
time). To evaluate the 330ms switch turn-on time version,
request a free sample of the MAX9890BETA+.
♦ Fully Assembled and Tested
Ordering Information
PART
TYPE
MAX9890EVKIT+
EV Kit
+Denotes lead-free and RoHS-compliant.
Component List
DESIGNATION
J1, J2
QTY
DESCRIPTION
DESIGNATION
QTY
DESCRIPTION
1µF 20%, 6.3V X5R ceramic
capacitor (0603)
TDK C1608X5R0J105M
Surface-mount, 1/8in stereo
headset jacks
2
1
C1
1
JU1
3-pin header
0.1µF 20%, 16V ceramic
capacitor (0603)
Murata GRM188R71C104K
Audio click-pop suppressor
(8 TDFN-EP*)
Maxim MAX9890AETA+
(Top Mark: AHA)
C2
1
U1
1
100µF, 6.3V tantalum capacitors
(T case)
Nichicon F950J107MTAAQ2
C3, C4
C5, C6
2
0
—
—
1
1
Shunt
PCB: MAX9890 Evaluation Kit+
Not installed, capacitors
(T case)
*EP = Exposed pad.
Component Suppliers
SUPPLIER
PHONE
WEBSITE
Murata Electronics North America, Inc.
Nichicon USA
770-436-1300
858-824-1515
847-803-6100
www.murata-northamerica.com
www.nichicon-us.com
TDK Corp.
www.component.tdk.com
Note: Indicate that you are using the MAX9890 when contacting these component suppliers.
________________________________________________________________ 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.
MAX9890 Evaluation Kit
5) Connect power supply between VCC and GND.
6) Enable audio source.
Quick Start
Recommended Equipment
Before beginning, the following equipment is needed:
7) Enable headphone amplifier.
8) Verify that audio is passed to headphones without
any audible clicks or pops.
•
•
•
•
•
MAX9890 EV kit
5V DC power supply
Detailed Description of Hardware
The MAX9890 EV kit provides a proven layout for the
MAX9890.
Stereo audio source
Single-ended stereo headphone amplifier
Stereo headphones
Table 1. MAX9890 EV Kit Jumper
Descriptions
Procedure
The MAX9890 is fully assembled and tested. Follow the
steps below to verify board operation:
SHUNT
POSITION
JUMPER
DESCRIPTION
1) Verify that jumper JU1 is in its default position, as
shown in Table 1.
1-2*
2-3
SHDN = VCC, normal operation
SHDN = GND, shutdown mode
JU1
2) Connect headphones to J2.
3) Connect headphone amplifier output to J1.
*Default position.
4) Connect audio source to single-ended stereo head-
phone amplifier.
Evluates:MAX890
Figure 1. MAX9890 EV Kit Schematic
2
_______________________________________________________________________________________
MAX9890 Evaluation Kit
Evluates:MAX890
Figure 2. MAX9890 EV Kit Component Placement Guide—
Component Side
Figure 3. MAX9890 EV Kit PCB Layout—Component Side
_______________________________________________________________________________________
3
MAX9890 Evaluation Kit
Evluates:MAX890
Figure 4. MAX9890 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.
4 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2008 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products, Inc.
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