19-3248; Rev 0; 4/04
MAX9700B Evaluation Kit
General Description
Features
The MAX9700B evaluation kit (EV kit) is a fully assembled
and tested circuit board that uses the MAX9700B filter-
less class D amplifier to drive a mono bridge-tied-load
(BTL) speaker in portable audio applications. Designed to
operate from a 2.5V to 5.5V DC power supply, the EV kit
is capable of delivering 1.2W into an 8Ω load.
♦ Filterless Operation Passes FCC Radiated
Emissions
♦ Evaluates the MAX9700A/B/C/D or MAX9712 (with
IC Replacement)
♦ 2.5V to 5.5V Single-Supply Operation
♦ Up to 94% Efficiency
♦ Drives 1.2W into 8Ω Speaker at 1% THD+N
♦ Differential or Single-Ended Inputs
♦ Selectable Switching Frequency
♦ 0.1µA Shutdown Current
The EV kit accepts differential or single-ended input
signals. The EV kit provides an option to select between
different switching frequency modes of operation. The
MAX9700B EV kit also evaluates the MAX9700A/
MAX9700C/MAX9700D and the MAX9712.
♦ Small 10-Pin TDFN Package
Ordering Information
♦ Also Available in 10-Pin µMAX and 12-Bump
PART
MAX9700BEVKIT
TEMP RANGE
0°C to +70°C
IC PACKAGE
10 TDFN-EP*
UCSP™ Packages
*EP = Exposed paddle.
♦ Fully Assembled and Tested
UCSP is a trademark of Maxim Integrated Products, Inc.
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
3-pin header
JU1
JU2
JU3
1
1
1
Not installed, MAX9700BEUB
(10-pin µMAX)
A1
A2
0
0
5-pin header
2-pin header
Not installed, MAX9700BEBC-T
(12-bump UCSP)
Not installed, inductors
recommended
TOKO D53LC series
L1, L2
0
3
0.1µF 10ꢀ, 25V X7ꢁ ceramic
capacitors (0603)
TDK C1608X7ꢁ1E104K
C1, C2
2
Ferrite beads 100Ω at 100MHz,
50mΩ DCꢁ, 3A (0603)
TDK MPZ1608S101A
L3, L4, L5
10µF 20ꢀ, 6.3V X5ꢁ ceramic
capacitor (0805)
TDK C2012X5ꢁ0J106M
C3
C4
1
0
2
ꢁ1
1
0
49.9Ω 1ꢀ resistor (0603)
Not installed, capacitor (0805)
ꢁ2, ꢁ3
Not installed, resistors (0603)
1µF 10ꢀ, 10V X5ꢁ ceramic
capacitors (0603)
TDK C1608X5ꢁ1A105K
Not installed, common-mode choke
50VDC, 1ADC 800Ω at 100MHz
recommended
C5, C6
T1
0
TDK ACM4532-801-2P-X
C7, C8, C9,
C11–C14
0
1
Not installed, capacitors (0603)
MAX9700BETB
(10-pin TDFN, 3mm x 3mm x 0.8mm))
U1
1
100pF 5ꢀ, 50V C0ꢂ ceramic
capacitor (0603)
TDK C1608C0ꢂ1H101J
None
None
3
1
Shunts (JU1, JU2, JU3)
MAX9700B PC board
C10
________________________________________________________________ Maxim Integrated Products
1
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.