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.
| 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 |
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