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General Description

The MAX9788 evaluation kit (EV kit) is a fully assembled

and tested PCB that uses the MAX9788 Class G ampli-

fier to drive a bridge-tied-load (BTL) ceramic 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 and provides a

fully differential output capable of delivering greater

than 14V

P-P

into a ceramic speaker.

Features

♦ 5V Single-Supply Operation

♦ Fully Differential Output

♦ Delivers Greater than 14V

P-P

into a Ceramic

Speaker

♦ Evaluates the MAX9788 in a 20-Bump UCSP

(2mm x 2.5mm) Package

♦ The MAX9788 IC Also Available in 28-Pin

(4mm x 4mm) TQFN Package

♦ Fully Assembled and Tested

Evaluates: MAX9788

MAX9788 Evaluation Kit

________________________________________________________________

Maxim Integrated Products

19-0714; Rev 2; 8/07

Component List

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.

Ordering Information

Component Suppliers

PART TEMP RANGE IC PACKAGE

MAX9788EVKIT+ 0°C to +70°C*

20 UCSP-20

(2mm x 2.5mm)

Denotes a lead-free and RoHS-compliant EV kit.

This limited temperature range applies to the EV kit PCB only.

The MAX9788 IC temperature range is -40°C to +85°C.

DESIGNATION QTY DESCRIPTION

C1, C2, C3 3

0.1µF ±10%, 6.3V X5R ceramic

capacitors (0402)

Murata GRM155R60J104K

C5, C6 2

1µF ±10%, 6.3V X5R ceramic

capacitors (0402)

Murata GRM155R60J105K

C7 1

4.7µF ±10%, 6.3V X5R ceramic

capacitor (0603)

Murata GRM188R60J475K

C8, C9, C10 3

10µF ±20%, 6.3V X5R ceramic

capacitors (0603)

Murata GRM188R60J106M

C11, C12 0 Not installed, capacitors (0603)

JU1 1 3-pin header

OUT 1

3.5mm stereo phone jack

(3-position, non-switch)

R1–R4 4

10k

±0.5% precision thick-film chip

resistors (0603)

Panasonic ERJ3RBD1002V

R5 1 100k

±1% resistor (0603)

R6, R7 2 5.1

±5% resistors (0805)

U1 1

MAX9788EBP+ (20-bump, 4 x 5

UCSP, 2mm x 2.5mm)

— 1 Shunt

— 1 PCB: MAX9788EVKIT+

SUPPLIER PHONE WEBSITE

Murata Mfg. Co., Ltd. 770-436-1300 www.murata.com

Panasonic Corp. 714-373-7366 www.panasonic.com

Note: Indicate that you are using the MAX9788 when contact-

ing these component suppliers.

Summary of content (4 pages)

PAGE 1
9-0714; Rev 2; 8/07 MAX9788 Evaluation Kit The MAX9788 evaluation kit (EV kit) is a fully assembled and tested PCB that uses the MAX9788 Class G amplifier to drive a bridge-tied-load (BTL) ceramic 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 and provides a fully differential output capable of delivering greater than 14VP-P into a ceramic speaker.
PAGE 2
Evaluates: MAX9788 MAX9788 Evaluation Kit Quick Start Recommended Equipment • 5V, 1A power supply • Audio source (i.e., CD player, MP3 player) • One ceramic speaker (recommended suppliers: Murata, Taiyo Yuden) Procedure The MAX9788 EV kit is fully assembled and tested. Follow the steps 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).
PAGE 3
MAX9788 Evaluation Kit VCC D1 C8 10μF GND C2 0.1μF C1 0.1μF D5 D3 VCC CPVDD VCC GND CPGND U1 PVSS VCC 1 2 SHDN MAX9788 B2 JU1 R2 10kΩ 0.5% 3 B4 SHDN SVSS SVSS C1P IN+ R1 10kΩ 0.5% C11 OPEN IN- B5 A5 C6 1μF R3 10kΩ 0.5% A4 R4 10kΩ 0.5% A3 C9 10μF A1 C1 C10 10μF C2 C3 0.1μF C4 A2 C7 4.7μF FB+ C1N C5 1μF Evaluates: MAX9788 VCC VCC OUT+ B1 R6 5.1Ω D2 OUT 3 1 IN+ OUT- D4 2 R7 5.1Ω INFB- OUT+ FS OUT- C5 R5 100kΩ 1% C12 OPEN Figure 1.
PAGE 4
Evaluates: MAX9788 MAX9788 Evaluation Kit Figure 2. MAX9788 EV Kit Component Placement Guide— Component Side Figure 3. MAX9788 EV Kit PCB Layout—Component Side Figure 4. MAX9788 EV Kit PCB Layout—Solder Side Revision History Pages changed at Rev 2: 1, 3, 4 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.