Datasheet

Overview

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1 Overview

Figure 1. DRV632EVM Top View

Figure 2. DRV632EVM Bottom View

The DRV632EVM customer evaluation module (EVM) demonstrates the capabilities and operation of the

DRV632 integrated circuit from Texas Instruments.

The DRV632 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 DRV632 is able to drive 2 V

RMS

into a 10-kΩ

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 DRV632 also has built-in shutdown control for pop-free, on/off control.

Using the DRV632 in audio product applications can reduce component counts considerably, compared to

traditional methods of generating a 2-V

RMS

output. The DRV632 does not require a power supply greater

than 3.3 V to generate its 5.6-V

output, nor does it require a split-rail power supply. The DRV632

integrates its own charge pump to generate a negative supply rail that provides a clean, pop-free,

ground-biased 2-V

RMS

output. The DRV632 is available in a 14-pin TSSOP package.

DRV632EVM Evaluation Module SLOU301–January 2010

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