The MAX9730 evaluation kit (EV kit) is a fully assembled
and tested PCB that uses the MAX9730 Class G power
amplifier to drive a bridge-tied-load (BTL) speaker in
portable audio applications. Designed to operate from
a 2.7V to 5.5VDC power supply, the EV kit accepts a
single-ended or differential input signal. The EV kit pro-
vides a fully differential output capable of delivering
2.4W into an 8Ω speaker.
19-0751; Rev 0; 2/07
Note: Indicate that you are using the MAX9730 when
contacting these component suppliers.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Murata Mfg. Co., Ltd.
Panasonic Corp.
DESIGNATION
C8, C9, C10
C1–C4
C5, C6
R1–R4
SUPPLIER
JU1
C7
R5
U1
—
—
QTY
________________________________________________________________ Maxim Integrated Products
4
2
1
3
1
4
1
1
1
1
Component Suppliers
770-436-1300 www.murata.com
714-373-7366 www.panasonic.com
General Description
0.1µF ±10%, 6.3V X5R ceramic
capacitors (0402)
Murata GRM155R60J104K
1µF ±10%, 6.3V X5R ceramic
capacitors (0402)
Murata GRM155R60J105K
4.7µF ±10%, 6.3V X5R ceramic
capacitor (1206)
Murata GRM31CR60J475K
10µF ±20%, 6.3V X5R ceramic
capacitors (0603)
Murata GRM188R60J106M
3-pin header
10kΩ ±0.5% precision-thick
film-chip resistors (0603)
Panasonic ERJ3RBD1002V
100kΩ ±1% resistor (0603)
MAX9730ETI+ (28-pin TQFN, 4mm
x 4mm x 0.8mm)
Shunt
PCB: MAX9730 evaluation kit
PHONE
Component List
DESCRIPTION
WEBSITE
MAX9730 Evaluation Kit
o 5V Single-Supply Operation
o Fully Differential Output
o Delivers 2.4W into an 8Ω Speaker
o Configurable Switching Frequency
o Evaluates the MAX9730 in a 28-Pin TQFN (4mm x
o MAX9730 IC Available in a 20-Bump UCSP (2mm x
o Fully Assembled and Tested
+ Denotes a lead-free and RoHS-compliant EV kit.
* This limited temperature range is for the EV kit PCB only. The
MAX9730 IC temperature range is -40°C to +85°C.
** EP = Exposed paddle.
•
•
•
The MAX9730 EV kit is fully assembled and tested.
Follow the steps listed below to verify board operation.
Caution: Do not turn on the power supply until all
connections are completed.
1) Install a shunt across pins 1-2 of jumper JU1 (EV kit ON).
2) Connect the 8Ω speaker across the OUT- and
3) Connect the ground terminal of the power supply to
4) Connect the positive terminal of the audio source to
5) Connect the negative terminal of the audio source
6) Connect the ground terminal of the audio source to
7) Turn on the audio source.
8) Turn on the power supply.
MAX9730EVKIT+
4mm x 0.8mm) Package
2.5mm) Package
5V, 2A power supply
Audio source (i.e., CD player, MP3 player, etc.)
One 8Ω speaker
OUT+ pads.
the GND pad and the positive terminal to the VCC pad.
the IN+ pad.
to the IN- pad. Connect the IN- pad to the GND
pad if the audio source is single-ended.
the GND pad.
PART
TEMP RANGE
0°C to +70°C*
Recommended Equipment
Ordering Information
(4mm x 4mm x 0.8mm)
Quick Start
IC PACKAGE
28 TQFN-EP**
Features
Procedure
1