User manual
UM-DA7202 evaluation board
DA7202 10 W mono class D ampl i fi er for 2S
systems
Abstract
This user manual enables you to use the UM-DA7202 class D speaker driver evaluation board, 18901-A EVB, to carry out performance measurements and functional checks on the DA7202 class D
speaker driver.
DA7202 10 W mono class D amplifier for 2S systems
UM-DA7202 evaluation board
Contents
Abstract ................................................................................................................................................ 1
Contents ............................................................................................................................................... 2
Figures .................................................................................................................................................. 2
Tables ................................................................................................................................................... 2
1 Terms and definitions ................................................................................................................... 3
2 References ..................................................................................................................................... 3
3 Introduction.................................................................................................................................... 4
4 DA7202 EVB hardware description ............................................................................................. 5
4.1 Power suppl y ......................................................................................................................... 7
4.2 Analogue input ...................................................................................................................... 7
4.2.1 Lower gain configuration........................................................................................ 7
4.2.2 Single-ended input ................................................................................................. 7
4.3 Speaker output ...................................................................................................................... 7
4.3.1 Additional filtering .................................................................................................. 7
5 Schematic diagram ....................................................................................................................... 8
6 Bill of materials .............................................................................................................................. 9
7 Revision history .......................................................................................................................... 11
Figures
Figure 1: DA7202 performance EVB ..................................................................................................... 4
Figure 2: DA7202 performance EVB external connections ................................................................... 5
Figure 3: Schematic diagram................................................................................................................. 8
Tables
Table 1: Connector summary ................................................................................................................ 6
Table 2: Order BOM for a single EVB ................................................................................................... 9
Table 3: Build BOM - populated components...................................................................................... 10
Table 4: Document revision history ..................................................................................................... 11
User Manual Revision 2.0 28-Mar-16
CFR0012 2 of 12 © 2016 Dialog Sem iconductor
DA7202 10 W mono class D amplifier for 2S systems
UM-DA7202 evaluation board
1 Terms and definitions
GND Ground Reference
EVB Evaluation Board
EMI Electromagnetic Interference
PCB Printed Circuit Board
USB Universal Serial Bus
PSRR Power Supply Rejection Ratio
2 References
[1] DA7202, Datasheet, Dialog Semiconductor
User Manual Revision 2.0 28-Mar-16
CFR0012 3 of 12 © 2016 Dialog Sem iconductor
DA7202 10 W mono class D amplifier for 2S systems
UM-DA7202 evaluation board
3 Introduction
DA7202 is a powerful, highly efficient, low EMI Class D speaker driver that can drive 10 W into 4 Ω
loads directly from a 2S lithium-ion battery to power a variety of two cell portable applications such as
Ultrabooks™ and tablets.
The DA7202 performance evaluation board (189-01-A) has been produced to allow measurement
and evaluation of the DA7202 device.
The evaluation board (EVB) is supplied with a USB memory stick containing supporting collateral.
Figure 1: DA7202 performance EVB
User Manual Revision 2.0 28-Mar-16
CFR0012 4 of 12 © 2016 Dialog Sem iconductor
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