MAX9820EVKIT Datasheet, PDF (1/4 Pages) Maxim Integrated Products – Evaluation Kit

19-4948; Rev 0; 9/09
MAX9820 Evaluation Kit
General Description
The MAX9820 evaluation kit (EV kit) demonstrates the
MAX9820 stereo headphone amplifier with external
gain and DirectDrive^® outputs for portable applications.
Maxim’s DirectDrive technology eliminates the need for
bulky DC-blocking capacitors at the output of the
amplifier.
The MAX9820 EV kit is configured for a -1V/V gain and
is designed to operate from a 2.7V to 5.5V DC power
supply. The EV kit is capable of delivering up to 95mW
into a 32Ω load and achieves 0.005% THD+N.
Features
♦ No DC-Blocking Output Capacitors Required
♦ 2.7V to 5.5V Operation
♦ Adjustable -1V/V Gain
♦ 95mW Into a 32Ω Load
♦ 0.005% THD+N
♦ Lead(Pb)-Free and RoHS Compliant
♦ Fully Assembled and Tested
DirectDrive is a registered trademark of Maxim Integrated
Products, Inc.
Ordering Information
PART
MAX9820EVKIT+
TYPE
EV Kit
+Denotes lead(Pb)-free and RoHS compliant.
DESIGNATION QTY
DESCRIPTION
C1, C2
1µF ±10%, 50V X7R ceramic
2 capacitors (0805)
Murata GRM21BR71H105K
10µF ±10%, 10V X5R ceramic
C3
1 capacitor (0805)
Murata GRM21BR61A106K
0.1µF ±10%, 16V X7R ceramic
C4
1 capacitor (0603)
Murata GRM188R71C104K
C5, C6
1µF ±10%, 10V X5R ceramic
2 capacitors (0603)
Murata GRM188R61A105K
C1P, VSS
0 Not installed, miniature PCB test points
HPOUT
1 Stereo headphone jack (3.5mm)
Component List
DESIGNATION QTY
DESCRIPTION
JU1
1 2-pin header
OUTL
1 White miniature PCB test point
OUTR
1 Red miniature PCB test point
PGND
1 Black miniature PCB test point
R1–R4
4 40.2kΩ ±1% resistors (0603)
R5
1 10kΩ ±5% resistor (0603)
External gain headphone amplifier
U1
1
(10 TDFN-EP*)
Maxim MAX9820ETB+
(Top Mark: AAU)
—
1 Shunt (JU1)
—
1 PCB: MAX9820 EVALUATION KIT+
*EP = Exposed pad.
Component Supplier
SUPPLIER
Murata Electronics North America, Inc.
PHONE
770-436-1300
WEBSITE
www.murata-northamerica.com
Note: Indicate that you are using the MAX9820 when contacting this component supplier.
________________________________________________________________ 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.