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DirectDrive Headphone Amplifier with External Gain

95mW Stereo Headphone Amplifier with Clickless Operation

Product Details

Key Features

Parametric specs for Headphone Amplifiers
Headphone Amplifier VCC (V) (min) 2.7
Headphone Amplifier VCC (V) (max) 5.5
Headphone Amplifier ICC (mA) (typ) 3
Hdph. Amp. POUT into 32Ω (mW) (@ 1% THD+N) 95
Headphone Amplifier Half-Power THD+N (%) 0.005
PSRR (dB) (min) 105
Headphone Amplifier External Gain Yes
Package/Pins TDFN/10
Budgetary
Price (See Notes)
0.61
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Simplified Block Diagram

Technical Docs

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Parameters

Parametric specs for Headphone Amplifiers
Headphone Amplifier VCC (V) (min) 2.7
Headphone Amplifier VCC (V) (max) 5.5
Headphone Amplifier ICC (mA) (typ) 3
Hdph. Amp. POUT into 32Ω (mW) (@ 1% THD+N) 95
Headphone Amplifier Half-Power THD+N (%) 0.005
PSRR (dB) (min) 105
Headphone Amplifier External Gain Yes
Package/Pins TDFN/10
Budgetary
Price (See Notes)
0.61

Key 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

Applications/Uses

  • Cell Phones
  • MP3 Players
  • Notebook PCs
  • PDAs

Description

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.

Simplified Block Diagram

MAX9820: Simplified Block Diagram MAX9820: Simplified Block Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.