SSM2250RM-R2

Product Summary

The SSM2250RM-R2 is a 250 mW Power Amplifier intended for use in desktop computers that have basic audio functions. It is also ideal for any audio system that needs to provide both an internal monaural speaker and a stereo line or headphone output. Combined with an AC97 codec, the SSM2250RM-R2 provides a PC audio system that meets the PC99 requirements. The SSM2250RM-R2 is compact and requires a mini-mum of external components. The SSM2250RM-R2 features an audio amplifier capable of delivering 1.5 W of low distortion power into a mono 4 Ω bridge-tied load (BTL) or 2×90 mW into stereo 32 Ω single-ended load (SE)headphones. The SSM2250RM-R2 provides rail-to-rail outputs for maximum dynamic range from a single supply. The balanced output provides maximum output from a 5 V supply and eliminates the need for a coupling capacitor. The SSM2250RM-R2 can automatically switch between an internal mono speaker and external headphones. The SSM2250RM-R2 can run from a single supply, ranging from 2.7 V to 6 V, with an active supply current of 9 mA typical. The ability to shut down the amplifiers (60μA shutdown current) makes the SSM2250RM-R2 an ideal speaker amplifier for battery-powered applications. The applications include: Desktop, portable, and palmtop computers, Sound cards, Communication headsets, 2-way communications, Hand-held games.

Parametrics

SSM2250RM-R2 absolute maximum ratings: (1)Supply Voltage: 6 V; (2)Differential Input Voltage: ±5 V; (3)Common-Mode Input Voltage: ±6 V; (4)ESD Susceptibility: 2000 V; (5)Storage Temperature Range, All Packages: -65℃ to +150℃; (6)Operating Temperature Range, All Packages: -40℃ to +85℃; (7)Junction Temperature Range, All Packages: -65℃ to +165℃; (8)Lead Temperature Range (Soldering, 60 sec): 300℃.

Features

SSM2250RM-R2 features: (1)Part of SoundMAX audio solution for desktop computers; (2)Mono 1.5 W differential or stereo 250 mW output; (3)Single-supply operation: 2.7 V to 6 V; (4)Low shutdown current = 60 μA; (5)PC99 compliant; (6)Low distortion: 0.2% THD at 1.5 W; (7)Wide bandwidth: 4 MHz; (8)Unity-gain stable.

Diagrams