PAM8403 , 3 Watt Class D Amplifier
PAM8403 , 3 Watt Class D Amplifier
Daftar Isi
Description
The PAM8403 is a 3W, class-D audio amplifier. It offers low THD+N,
allowing it to achieve high-quality sound reproduction. The new
filterless architecture allows the device to drive the speaker directly,
requiring no low-pass output filters, thus saving system cost and PCB
area.
With the same numbers of external components, the efficiency of the
PAM8403 is much better than that of Class-AB cousins. It can extend
the battery life, which makes it well-suited for portable applications.
The PAM8403 is available in SOP-16 package.
Features
- 3W Output at 10% THD with a 4Ω Load and 5V Power Supply
- Filterless, Low Quiescent Current and Low EMI
- Low THD+N
- Superior Low Noise
- Efficiency up to 90%
- Short Circuit Protection
- Thermal Shutdown
- Few External Components to Save the Space and Cost
- Pb-Free Package
Application
What is PAM8403 for?
- LCD Monitors / TV Projectors
- Notebook Computers
- Portable Speakers
- Portable DVD Players, Game Machines
- Cellular Phones/Speaker Phones
Typical Application Circuit
Pin List
| Pin number | Pin name | Pin Function |
| 1 | +OUT_L | Left Channel Positive Output |
| 2 | PGND | Power GND |
| 3 | -OUT_L | Left Channel Negative Output |
| 4 | PVDD | Power VDD |
| 5 | MUTE | Mute Control Input (active low) |
| 6 | VDD | Analog VDD |
| 7 | INL | Left Channel Input |
| 8 | VREF | Internal analog reference, connect a bypass capacitor from VREF to GND. |
| 9 | NC | No Connact |
| 10 | INR | Right Channel Input |
| 11 | GND | Analog GND |
| 12 | SHND | Shutdown Control Input (active low) |
| 13 | PVDD | Power VDD |
| 14 | -OUT_R | Right Channel Negative Output |
| 15 | PGND | Power GND |
| 16 | +OUT_R | Right Channel Positive Output |
Functional Block Diagram
Absolute Maximum Rating
These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may
affect device reliability. All voltages are with respect to ground.
| Parameter | Rating | Unit |
| Supply Voltage | 6.0 | V |
| Input Voltage | V -0.3 to VDD +0.3V | V |
| Operation Temperature Range | -40 to +85 | °C |
| Maximum Junction Temperature | 150 | °C |
| Operation Junction Temperature | -40 to +125 | °C |
| Storage Temperature | -65 to +150 | °C |
| Soldering Temperature | 300, 5 sec | °C |