MAX9719 Datasheet | Maxim Integrated

Description The MAX9718/MAX9719 differential input audio power amplifiers are ideal for portable audio devices with internal speakers. The differential input structure improves noise rejection and provides mon-mode rejection. A bridge-tied load (BTL) architecture minimizes external ponent count, while providing highquality, power audio amplification. The MAX9718 is a .. single-channel amplifier while the MAX9719 is a dualchannel amplifier for stereo systems. Both devices deliver 1.4W continuous average power per channel to a 4Ω load with less than 1% THD+N while operating from a single +5V supply. The devices are available as adjustable gain amplifiers or with internally fixed gains of 0d B, 3d B, and 6d B to reduce ponent count. A shutdown input disables the bias generator and amplifiers and reduces quiescent current consumption to less than 100n A. The MAX9718 shutdown input can be set as active high or active low. These devices feature Maxim’s prehensive click-and-pop suppression circuitry that reduces audible clicks and pops during startup and shutdown. The MAX9718 is pin patible with the LM4895, and is available in 9-bump UCSP™, 10-pin TDFN, and 10-pin µMAX packages. The MAX9719 is available in 16-pin TQFN, 16-pin TSSOP, and 16-bump UCSP packages. Both devices operate over the -40°C to +85°C extended temperature range. o Very High -93d B PSRR at 217Hz o 1.4W into 4Ω at 1% THD+N (per Channel) o Differential Input o Internal Fixed Gain to Reduce ponent Count o Adjustable Gain Option (MAX9718A/MAX9719A) o 100n A Low-Power Shutdown Mode o No Audible Clicks or Pops at Power-Up/Down o Improved Performance Pin-patible Upgrade to LM4895 (MAX9718D) Features o 2.7V to 5.5V Single-Supply Operation MAX9718/MAX9719 Ordering Information PART TEMP RANGE PINPACKAGE GAIN (d B) Adj Adj Adj MAX9718AEBL-T- -40°C to +85°C 3 x 3 UCSP MAX9718AETB- MAX9718AEUB -40°C to +85°C 10 TDFN-EP- - -40°C to +85°C 10 µMAX-EP- - - Future product- contact factory for availability. - - EP = Exposed...