19-5221; Rev 0; 5/10
MAX98500 Evaluation Kit
General Description
Features
S 2.5V to 5.5V Single-Supply Operation
S Output Power: 2.2W into 8ω, 10% THD+N
S Selectable Gain Settings (6dB, 15.5dB, and 20dB)
S Boosted Class D Output
The MAX98500 evaluation kit (EV kit) is a fully assembled
and tested circuit board that uses the MAX98500 boost-
ed 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 delivers 2.2W into an 8I load. The EV kit accepts
differential or single-ended input signals, features three
selectable gain settings (6dB, 15.5dB, and 20dB), and
provides separate speaker and boost shutdown inputs.
S Differential or Single-Ended Input Signals
S Boost Converter Shutdown
S Speaker Output Shutdown
S Fully Assembled and Tested
Ordering Information
PART
TYPE
MAX98500EVKIT+
EV Kit
+Denotes lead(Pb)-free and RoHS compliant.
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
REQUIRED COMPONENTS
0.22FF Q10%, 25V X7R ceramic
capacitors (0603)
Murata GRM188R71E224K
TDK C1608X7R1E224K
10FF Q10%, 6.3V X7R ceramic
capacitor (0805)
Murata GRM21BR70J106K
TDK C2012X7R0J106K
C14–C18
5
C1
C2
1
1
2
1
1
FB1
1
0
0I resistor (0603)
FB2, FB3
Not installed, ferrite beads (0603)
22FF Q20%, 16V X5R ceramic
capacitor (1206)
Murata GRM31CR61226M
Taiyo Yuden EMK316BJ226M
Phono jack, black (side-entry
PCB mount)
J1
1
JU1, JU2, JU3
JU4
3
1
3-pin headers
2-pin header
1FF Q10%, 25V X7R ceramic
capacitors (0603)
Murata GRM188R71E105K
Murata GRM188R71E105M
2.2FH, 34mI, 4.5A inductor
TOKO FDV0530S-2R2M
(5mm x 5mm x 3mm)
TDK LTF5022T-2R2N3R2-LC
(5mm x 5mm x 2.2mm)
NEC MPLC0525L2R2
C3, C4
C5
L1
1
22FF Q10%, 6.3V X5R ceramic
capacitor (0805)
Murata GRM21BR60J226M
TDK C2012X5R0J226K
(5.2mm x 6.2mm x 2.5mm)
Not installed, inductors
TOKO A916CY-220M (provided
with EV kit)
0.1FF Q10%, 16V X7R ceramic
capacitor (0402)
Murata GRM155R71C104K
TDK C1005X7R1C104K
L2, L3
0
4
C8
OUT-, OUT+,
PGND, RKNEE
Test points
Not installed, ceramic capacitors
(0402)
C9, C10
0
0
R1
1
2
27.4kω Q1% resistor (0603)
22ω Q5% resistors (0603)
R2, R3
Not installed, ceramic capacitors
(0603)
C12, C13
_______________________________________________________________ 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.