Texas Instruments LM4910
The LM4910 is an audio power amplifier primarily designed for headphone applications in portable device applications. It is capable of delivering 35mW of continuous average power to a 32Ω load with less than 1% distortion (THD+N) from a 3.3VDC power supply. The LM4910 utilizes a new circuit topology that eliminates output coupling capacitors and half-supply bypass capacitors.- Min Voltage : 2.2V
- Max Voltage : 5.5V
- Channels : 2
- Max Operating Temp : 85°C
- Min Operating Temp : -40°C
Source:
Octopart
| Part No. | LM4910 |
|---|---|
| Datasheet | LM4910 Download |
| Manufacturer |  Texas Instruments |
| Description | Output Capacitor-less Stereo 35mW Headphone Amplifier |
| Buy | Stock & Price |
FEATURES
1●2 Eliminates headphone amplifier output coupling capacitors
● Eliminates half-supply bypass capacitor
● Advanced pop & click circuitry eliminates noises during turn-on and turn-off
● Ultra-low current shutdown mode
● Unity-gain stable
● 2.2V - 5.5V operation
● Available in space-saving MSOP, LLP, and SOIC packages
APPLICATIONS
● Mobile Phones● PDAs
● Portable electronics devices
● Portable MP3 players
DESCRIPTION
The LM4910 contains advanced pop & click circuitry which eliminates noises caused by transients that would otherwise occur during turn-on and turn-off. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4910 does not require any output coupling capacitors, half-supply bypass capacitors, or bootstrap capacitors, it is ideally suited for low-power portable applications where minimal space and power consumption are primary requirements. The LM4910 features a low-power consumption shutdown mode, activated by driving the shutdown pin with logic low.
