MAX9820
DirectDrive Headphone Amplifier with External Gain
95mW Stereo Headphone Amplifier with Clickless Operation
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Overview
Features and Benefits
- 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
Product Details
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
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Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.