MAX9820
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MAX9820

DirectDrive Headphone Amplifier with External Gain

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95mW Stereo Headphone Amplifier with Clickless Operation

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $0.61
Features
  • Clickless/Popless Operation
  • High RF Noise Rejection
  • Windows Vista Premium Mobile Compliant
  • 2.7V to 5.5V Single-Supply Operation
  • 95mW Output Power (32Ω, VDD = 5V)
  • Low-Current Shutdown Mode, < 1µA
  • Low 3mA (VDD = 3.3V) Quiescent Current
  • Space-Saving, 3mm x 3mm, 10-Pin TDFN Package
Additional Details
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The MAX9820 Windows Vista®-compliant stereo headphone amplifier is designed for portable equipment where board space is at a premium. It features Maxim's DirectDrive® architecture to produce a ground-referenced output from a single supply, eliminating the large output-coupling capacitors required by conventional single-supply headphone amplifiers.

The MAX9820 features an undervoltage lockout that prevents over discharging of the battery during brownout conditions, click-and-pop suppression that eliminates audible transients on startup, a low-power shutdown mode, and thermal-overload and short-circuit protection. Additionally, the MAX9820 suppresses RF radiation received by input and supply traces acting as antennas and prevents the amplifier from demodulating the coupled noise.

The MAX9820 is available in a 10-pin TDFN package (3mm x 3mm x 0.8mm) and specified over the -40°C to +85°C extended temperature range.

Applications

  • Cell Phones
  • MP3 Players
  • Notebook PCs
  • PDAs
Part Models 2
1ku List Price Starting From $0.61

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX9820ETB+
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MAX9820ETB+T
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Product Lifecycle

PCN

Jun 20, 2016

- 1612

ASSEMBLY

MAX9820ETB+

PRODUCTION

MAX9820ETB+T

PRODUCTION

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Part Models

Product Lifecycle

PCN

Jun 20, 2016

- 1612

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ASSEMBLY

MAX9820ETB+

PRODUCTION

MAX9820ETB+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX9820EVKIT

Evaluation Kit for the MAX9820

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MAX9820EVKIT

Evaluation Kit for the MAX9820

Evaluation Kit for the MAX9820

Features and Benefits

  • No DC-Blocking Output Capacitors Required
  • 2.7V to 5.5V Operation
  • Adjustable -1V/V Gain
  • 95mW Into a 32Ω Load
  • 0.005% THD+N
  • Lead(Pb)-Free and RoHS Compliant
  • Fully Assembled and Tested

Product Detail

The MAX9820 evaluation kit (EV kit) demonstrates the MAX9820 stereo headphone amplifier with external gain and DirectDrive® outputs for portable applications. Maxim's DirectDrive technology eliminates the need for bulky DC-blocking capacitors at the output of the amplifier.

The MAX9820 EV kit is configured for a -1V/V gain and is designed to operate from a 2.7V to 5.5V DC power supply. The EV kit is capable of delivering up to 95mW into a 32Ω load and achieves 0.005% THD+N.

Applications

  • Cell Phones
  • MP3 Players
  • Notebook PCs
  • PDAs

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