Datasheet

1 Overview
Overview www.ti.com
11 Pop/Click (Disable) ......................................................................................................... 11
12 DRV602EVM2 Schematic: DRV602 ..................................................................................... 12
13 DRV602EVM2 Schematic: On/Off and Regulator ..................................................................... 12
14 DRV602EVM2 PCB Component Placement ............................................................................ 15
15 DRV602EVM2 PCB Top Layer ........................................................................................... 16
16 DRV602EVM2 PCB Bottom Layer ....................................................................................... 16
List of Tables
1 Key Parameters .............................................................................................................. 3
2 Recommended Supply Voltage ............................................................................................ 4
3 DRV602EVM2 Filter Specifications ....................................................................................... 5
4 General Test Conditions .................................................................................................... 7
5 Electrical Data ................................................................................................................ 7
6 Audio Performance Analog Input .......................................................................................... 8
7 Physical Specifications ...................................................................................................... 8
8 Related Documentation.................................................................................................... 12
9 Bill of Materials ............................................................................................................. 13
10 PCB Specifications ......................................................................................................... 14
The DRV602EVM2 customer evaluation module (EVM) demonstrates the capabilities and operation of the
DRV602 integrated circuit from Texas Instruments.
The DRV602 is a 2-V
RMS
pop-free stereo line driver designed to allow removal of the output dc-blocking
capacitors in audio applications to reduce component count and overall cost. The device is ideal for
single-supply electronics where size and cost are critical design parameters.
Designed using TI’s patented DirectPath™ technology, the DRV602 is able to drive 2 V
RMS
into a 2.5-k Ω
load with 3.3-V supply voltage. The device has differential inputs and uses external gain-setting resistors
that support a gain range of ± 1 V/V to ± 10 V/V, and line outputs that have ± 8 kV IEC electrostatic
discharge (ESD) protection. The DRV602 also has built-in shutdown control for pop-free on/off control.
Using the DRV602 in audio product applications can reduce component counts considerably compared to
traditional methods of generating a 2-V
RMS
output. The DRV602 does not require a power supply greater
than 3.3 V to generate its 5.6-V
PP
output, nor does it require a split-rail power supply. The DRV602
integrates its own charge pump to generate a negative supply rail that provides a clean, pop-free,
ground-biased 2-V
RMS
output. The DRV602 is available in a 14-pin TSSOP package.
This EVM is configured with two RCA phono input connectors for analog input; the output signal is
available on two RCA phono connectors. The power supply is connected via a two-pin, 2,54-mm header.
This evaluation board is designed for testing applications such as set-top boxes, LCD/PDP TVs, Blu-ray
Disc™ DVD players, DVD mini-component systems, home theater-in-a-box (HTIB) systems, or
soundcards.
This document presents EVM specifications, audio performance measurements graphs, and design
documentation that includes complete circuit descriptions, schematic diagrams, a parts list, and PCB
layout design. Gerber (layout) files are available from the TI web site at www.ti.com .
Throughout this document, the abbreviation EVM and the term evaluation module are synonymous with
the DRV602EVM2.
2 DRV602EVM2 SLOU248A – December 2008 – Revised January 2009
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