Product Summary

The MAX9718FEBL+TG45 is a differential input audio power amplifier ideal for portable audio devices with internal speakers. The differential input structure improves noise rejection and provides common-mode rejection. A bridge-tied load (BTL) architecture minimizes external component count, while providing high-quality, power audio amplification. The MAX9718FEBL+TG45 is a single-channel amplifier. The MAX9718FEBL+TG45 delivers 1.4W continuous average power per channel to a 4W load with less than 1% THD+N while operating from a single +5V supply. The MAX9718FEBL+TG45 is available as adjustable gain amplifiers or with internally fixed gains of 0dB, 3dB, and 6dB to reduce component count. The MAX9718FEBL+TG45 is suitable for Mobile Phones, PDAs, Portable Devices.

Parametrics

MAX9718FEBL+TG45 absolute maximum ratings: (1)Supply Voltage (VCC to GND): -0.3V to +6V; (2)Any Other Pin to GND: -0.3V to (VCC + 0.3V); (3)IN_, BIAS, SHDM, SHDN, SHDN Continuous Current: 20mA; (4)OUT_ Short-Circuit Duration to GND or VCC: Continuous; (5)Continuous Power Dissipation: 1067mW; (6)Operating Temperature Range: -40 to +85℃; (7)Junction Temperature: +150℃; (8)Storage Temperature Range: -65 to +150℃; (9)Lead Temperature (soldering, 10s): +300℃; (10)Soldering Temperature (reflow): +260℃.

Features

MAX9718FEBL+TG45 features: (1)2.7V to 5.5V Single-Supply Operation; (2)Very High -93dB PSRR at 217Hz; (3)1.4W into 4? at 1% THD+N (per Channel); (4)Differential Input; (5)Internal Fixed Gain to Reduce Component Count; (6)Adjustable Gain Option (MAX9718A/H/MAX9719A); (7)100nA Low-Power Shutdown Mode; (8)No Audible Clicks or Pops at Power-Up/Down; (9)Improved Performance Pin-Compatible Upgrade to LM4895; (10)1.8V Logic Compatible.

Diagrams

MAX9718FEBL+TG45 simplified block diagram

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