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Product details

Parameters

Gain (V/V) Adjustable Iq (Typ) (mA) 14 Number of channels (#) 2 THD + N @ 1 kHz (%) 0.002 Noise floor (RTO, 20 kHz BW) (dBu) 110.9 Slew rate (Typ) (V/us) 4.5 Small-Signal bandwidth (Typ) (MHz) 8 Operating temperature range (C) -40 to 85 open-in-new Find other Audio line drivers

Package | Pins | Size

TSSOP (PW) 14 32 mm² 5 x 6.4 open-in-new Find other Audio line drivers

Features

  • Stereo DirectPath™ Audio Line Driver
    • 2 Vrms Into 10 kΩ With 3.3-V Supply
  • Low THD+N < 0.01% at 2 Vrms Into 10 kΩ
  • High SNR, >90 dB
  • 600-Ω Output Load Compliant
  • Differential Input and Single-Ended Output
  • Adjustable Gain by External Gain-Setting Resistors
  • Low DC Offset, <1 mV
  • Ground-Referenced Outputs Eliminate DC-Blocking Capacitors
    • Reduce Board Area
    • Reduce Component Cost
    • Improve THD+N Performance
    • No Degradation of Low-Frequency Response Due to Output Capacitors
  • Short-Circuit Protection
  • Click- and Pop-Reduction Circuitry
  • External Undervoltage Mute
  • Active Mute Control for Pop-Free Audio On/Off Control
  • Space-Saving TSSOP Package

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Description

The DRV632 is a 2-VRMS pop-free stereo line driver designed to allow the removal of the output dc-blocking capacitors for reduced component count and 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 capable of driving 2 VRMS into a 10-kΩ load with 3.3-V supply voltage. The device has differential inputs and uses external gain-setting resistors to support a gain range of ±1 V/V to ±10 V/V, and gain can be configured individually for each channel. Line outputs have ±8-kV IEC ESD protection, requiring just a simple resistor-capacitor ESD protection circuit. The DRV632 has built-in active-mute control for pop-free audio on/off control. The DRV632 has an external undervoltage detector that mutes the output when the power supply is removed, ensuring a pop-free shutdown.

Using the DRV632 in audio products can reduce component count considerably compared to traditional methods of generating a 2-VRMS output. The DRV632 does not require a power supply greater than 3.3 V to generate its 5.6-Vpp 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-VRMS output.

The DRV632 is available in a 14-pin TSSOP.

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Technical documentation

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Type Title Date
* Datasheet DRV632 DirectPath™, 2-VRMS Audio Line Driver With Adjustable Gain datasheet (Rev. C) Aug. 15, 2019
Application note DAC Post-Filter Design Based on DRV6xx Family (Rev. A) Nov. 23, 2010
User guide DRV632EVM Evaluation Module Jan. 04, 2010

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
99
Description

The DRV632EVM customer evaluation module (EVM) demonstrates the capabilities and operation of the DRV632 integrated circuit from Texas Instruments.

The DRV632 is a 2Vrms, stereo line driver aimed at replacing line driver circuits created with an op amp and passives. These solutions have poor click (...)

Features
  • Two-channel evaluation module (double-sided, plated-through PCB layout)
  • 2-VRMS line output
  • Single-ended or balanced analog input
  • No output capacitor required
  • Mute button

Design tools & simulation

SIMULATION MODEL Download
SLOM206C.ZIP (49 KB) - PSpice Model
SIMULATION MODEL Download
SLOM207C.ZIP (6 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLOM208C.TSC (749 KB) - TINA-TI Reference Design
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
TSSOP (PW) 14 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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