SSM2305-EVALZ: 2.8 W @ 4 Ω, 2.7 ~ 5.5 V

Summary

The SSM2305 is a fully integrated, single-chip, mono Class-D audio amplifier that is designed to maximize performance for mobile phone applications. The application circuit operates from a single 2.5 V to 5.5 V supply and is capable of delivering 2.8 W of continuous output power with less than 10% THD + N driving a 4 Ω load from a single 5.0 V supply.

The SSM2305 comes with a differential mode input port and a high efficiency, full H-bridge at the output that enables direct coupling of the audio power signal to the loudspeaker. The differential mode input stage allows for canceling of common-mode noise.

The SSM2305 evaluation board carries a complete application circuit for driving a loudspeaker.

Specifications

Manufacturer	Analog Devices Inc.
Category	Audio Amplifiers
Eval Board Part Number	SSM2305-EVALZ-ND
Eval Board Supplier	Analog Devices Inc.
Eval Board	Normally In Stock
Amplifier Type	Class D
Number of Outputs	Mono
Output Power (RMS) @ Load	2.8 W @ 4 Ω (5V)
Voltage In	2.7 ~ 5.5 V
THD+N (1kHz) @ Conditions	< 1% @ 1.34 W (8 Ω, 5V) < 1% @ 2.22 W (4 Ω, 5V)
Features	Filterless Output Short Circuit Protection Shutdown, Enable, Standby Thermal Protection Turn On/Off Depop
Efficiency @ Conditions	>88%, 5V in, 1.3W @ 8 Ω
Standby Current [Typical]	20 nA
Quiescent Current [Typical]	2.4 mA
Component Count + Extras	17 + 6
Application / Target Market	Audio: MP3 Players Cell Phones
Design Author	Analog Devices
Main I.C. Base Part	SSM2305
Quiescent Current [Maximum]	3.2 mA
Standby Current [Maximum]	30 nA
Date Created By Author
Date Added To Library	2011-03