PAM8905：Audio
| Part Number | Data Sheet | SPICE Model | VDD (V) | IQ (mA) | Efficiency (%) | Volume/ Gain | Gain Min (dB) | Gain Max (dB) | SNR (dB) | PSRR (dB) |
|---|---|---|---|---|---|---|---|---|---|---|
| PAM8905 | PAM8905.pdf | - | - | - | 85 | AGC | - | +20 | 95 | -70 |
Description
|
The PAM8905 is a high efficiency Class-D audio power amplifier with an integrated boost converter. It drives up to 1.9W (1% THD+N) into an 8Ω speaker. With 85% typical efficiency, the PAM8905 helps extend battery life when playing audio. The built-in boost converter generates the voltage rail for the output stage. This provides a louder audio output than a stand-alone amplifier connected directly to the battery. It also maintains a consistent loudness, regardless of battery voltage. The PAM8905 features battery tracking AGC function which adjusts the Class-D gain to limit battery current at lower battery voltage. PAM8905 features DC input protection and all outputs are fully protected against output-to-output shorts. The PAM8905 is available in tiny WCSP12 (1.5mm x 2.0mm) packages. |
Application
- Cell Phones
- PDA
- GPS
- Portable Electronics
- Speakers
Features
- Built-In Battery Tracking Automatic Gain Control (AGC)
- High Efficiency Integrated Boost Converter Over 85%
- 1.9W into an 8Ω Load from a 3.6V Supply
- Operates from 2.8V to 5.2V
- Efficient Class-D Prolongs Battery Life
- Minimized ON/OFF Pop Noise
- Superior Low Noise
- High PSRR
- DC Input Protection
- Auto-Recovery Short-Circuit Protection
- Thermal Shutdown
- Available in U-WLB1520-12 Package
Ordering Information
- PAM8905PZR
U-WLB1520-12
- PAM8905.pdf PAM8905
