MAX98400BEVKIT+ Maxim Integrated Products, MAX98400BEVKIT+ Datasheet

no-image

MAX98400BEVKIT+

Manufacturer Part Number
MAX98400BEVKIT+
Description
Audio Modules & Development Tools MAX98400B KIT MAX98400B KIT
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX98400BEVKIT+

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
19-5505; Rev 0; 9/10
The MAX98400B evaluation kit (EV kit) configures the
MAX98400B Class D amplifier to drive 2x12W into a pair
of 8I speakers in stereo mode for audio applications.
The EV kit operates from an 8V to 28V DC power supply.
The EV kit has a programmable gain and the jumper set-
tings default to a +20.1dB gain. The EV kit accepts a pair
of single-ended or differential input signals and provides
two sets of differential outputs for speakers.
The EV kit has two independent amplifier circuits, dem-
onstrating direct speaker driving (for low component
count) and filtered output driving (for ease of evaluation).
The EV kit comes with two MAX98400BETG+ devices
installed.
The EV kit provides an option to control the limiter,
thermal foldback, input configuration, gain, and shut-
down mode of the device. The EV kit includes convenient
audio input and output connectors.
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.
FILTERLESS EVALUATION (U1)
DESIGNATION
C102A, C102B
C103, C104
C105–C108
C111–C114
C101
FB1
_______________________________________________________________ Maxim Integrated Products 1
QTY
General Description
1
2
2
4
0
1
220FF Q20%, 35V electrolytic
capacitor (radial leaded,
5mm spacing), 10mm
diameter x 12.5mm high
Panasonic EEU-FM1V221
1FF Q10%, 50V X7R ceramic
capacitors (0805)
TDK C2012X7R1H105K
1FF Q10%, 10V X7R ceramic
capacitors (0603)
Murata GRM188R71A105K
1FF Q10%, 25V X7R ceramic
capacitors (0805)
Murata GRM21BR71E105K
Not installed, ceramic
capacitors (0603)
22I at 100MHz ferrite bead
(0805)
Murata BLM21PG220SN1D
DESCRIPTION
MAX98400B Evaluation Kit
S
S
S
S
S
S
S
S
S
S
+Denotes lead(Pb)-free and RoHS compliant.
MAX98400BEVKIT+
GAIN1_1, GAIN2_1,
R101, R103, R104,
L1+, L1-, R1+, R1-
8V to 28V Single DC Power-Supply Operation
Fully Differential Inputs and Outputs
Drives 2x12W into 8I Speakers in Stereo Mode
Limiter Control
Thermal Foldback
Shutdown Control
Evaluates the MAX98400B in a 24-Pin TQFN
Package with an Exposed Pad
U1 Configured for Filterless Output
U2 Configured for Filtered Output
Fully Assembled and Tested
SHDN_1, TEMP_1
SPKL1+, SPKL1-,
SPKR1+, SPRK1-
DESIGNATION
JU104, JU105,
R111–R114
LIM_1
PART
R105
R106
R107
INR1
INL1
U1
Ordering Information
QTY
3
1
1
4
0
0
0
1
4
4
1
3-pin headers
White phono jack
Red phono jack
2-pin headers
Not installed, multipurpose
test points
Not installed, resistors (0603)
Not installed, potentiometer
(3/8in)
100kI Q5% resistor (0603)
0I Q5% resistors (0805)
Binding posts
Stereo Class D audio
amplifier (24 TQFN-EP*)
Maxim MAX98400BETG+
Component List
DESCRIPTION
TYPE
EV Kit
Features

Related parts for MAX98400BEVKIT+

MAX98400BEVKIT+ Summary of contents

Page 1

... Evaluates the MAX98400B in a 24-Pin TQFN S Package with an Exposed Pad U1 Configured for Filterless Output S U2 Configured for Filtered Output S Fully Assembled and Tested S Ordering Information PART MAX98400BEVKIT+ +Denotes lead(Pb)-free and RoHS compliant. DESIGNATION QTY GAIN1_1, GAIN2_1, 3 LIM_1 INL1 1 INR1 1 JU104, JU105, ...

Page 2

MAX98400B Evaluation Kit DESIGNATION QTY 600I at 100MHz, 150mI — 10 DCR, 2A ferrite beads (0805) Würth Elektronik 742792040 330pF Q10%, 50V X7R — 10 ceramic capacitors (0603) TDK C1608X7R1H331K FILTERED EVALUATION (U2) 220FF Q20%, 35V electrolytic capacitor (radial leaded, ...

Page 3

Required Equipment • MAX98400B EV kit • 28V power supply • Audio source with volume control (e.g., CD player) • Two speakers Procedure—Filterless Evaluation (U1) The 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 ...

Page 4

MAX98400B Evaluation Kit Filterless Output (U1) The EV kit’s filterless outputs (SPKL1+/SPKL1- and SPKR1+/SPKR1-) can be connected directly to a pair of speaker loads without any filtering. Output Filtering Requirements (U1) The device can pass CE EN55022B regulations with only ...

Page 5

Table 2. Jumper Descriptions (U2) SHUNT JUMPER DESCRIPTION POSITION Normal operation; U2 SHDN = 1-2* DVDD (external logic high) SHDN_2 Open Shutdown; U2 SHDN = GND Thermal foldback enabled; U2 Open* TEMPLOCK = unconnected TEMP_2 Thermal foldback disabled; U2 1-2 ...

Page 6

MAX98400B Evaluation Kit Figure 1a. MAX98400B EV Kit Schematic (Sheet ______________________________________________________________________________________ ...

Page 7

Figure 1b. MAX98400B EV Kit Schematic (Sheet _______________________________________________________________________________________ MAX98400B Evaluation Kit 7 ...

Page 8

MAX98400B Evaluation Kit Figure 1c. MAX98400B EV Kit Schematic (Sheet ______________________________________________________________________________________ ...

Page 9

Figure 2. MAX98400B EV Kit Component Placement Guide—Component Side _______________________________________________________________________________________ MAX98400B Evaluation Kit 9 ...

Page 10

MAX98400B Evaluation Kit Figure 3. MAX98400B EV Kit PCB Layout—Component Side 10 _____________________________________________________________________________________ ...

Page 11

Figure 4. MAX98400B EV Kit PCB Layout—Solder Side ______________________________________________________________________________________ MAX98400B Evaluation Kit 11 ...

Page 12

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 12 2010 Maxim Integrated Products © ...

Related keywords