19-4666; Rev 0; 7/09
www.DataSheet4U.com
KIT ATION EVALU LE B A IL A AV
DirectDrive Headphone Amplifier with External ...
19-4666; Rev 0; 7/09
www.DataSheet4U.com
KIT ATION EVALU LE B A IL A AV
DirectDrive Headphone Amplifier with External Gain
General Description Features
o Clickless/Popless Operation o High RF Noise Rejection o Windows Vista Premium Mobile Compliant o 2.7V to 5.5V Single-Supply Operation o 95mW Output Power (32Ω, VDD = 5V) o Low-Current Shutdown Mode, < 1µA o Low 3mA (VDD = 3.3V) Quiescent Current o Space-Saving, 3mm x 3mm, 10-Pin TDFN Package
MAX9820
The MAX9820 Windows stereo headphone amplifier is designed for portable equipment where board space is at a premium. It features Maxim’s patented 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 under
voltage 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.
Vista®-compliant
Ordering Information
PART TEMP RANGE PINPACKAGE 10 TDFN-EP* TOP MARK AUU
Applications
Cell Phones MP3 P...