PAM8901：音频
| Part Number | Data Sheet | SPICE Model | VDD (V) | IQ (mA) | Efficiency (%) | Volume/ Gain | Gain Min (dB) | Gain Max (dB) | SNR (dB) | PSRR (dB) |
|---|---|---|---|---|---|---|---|---|---|---|
| PAM8901 | PAM8901_8.pdf | - | 2.5 to 5.5 | 4 | - | Four Settings | -6 | 6 | 100 | -75 |
Description
The PAM8901 stereo headphone driver is designed for portable equipment where board space is at a premium. The PAM8901 uses a unique, patent pending architecture to produce a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors, saving cost, board space, and component height. The PAM8901 delivers up to 25mW per channel into a 16Ω load and has low 0.03% THD+N. A high power-supply rejection ratio (80dB at 1kHz) allows this device to operate from noisy digital supplies without an additional linear regulator. The PAM8901 operates from a single supply from 2.5V t o 5.5V, has short-circuit and over temperature protection. Shutdown mode reduces supply current to less than 1μA.
Application
- Smart Phones/Cellular Phones
- Notebook Computers
- Portable DVD Player
- Personal Digital Assistants (PDAs )
- Electronic Dictionaries
- Digital Still Cameras
- Portable Gaming
Features
- Patent Pending 3 phase power line shift
- charge pump Eliminates Need for DC-Blocking Capacitors
- TrueCapFree Architecture, Output Biased at 0V (System Ground)
- Excellent Low Frequency Fidelity
- 80dB PSRR at 1kHz
- Less than 1uA Shutdown current
- Support both Fully differential and Single-Ended Inputs
- Short Circuit and Over Temperature Protection
- Selectable Gain settings:-6dB,0dB,3dB and 6dB
- Available in Space Saving Packages: TQFN3x3-16L
U-QFN3030-16
- PAM8901_8.pdf PAM8908
