Loud sound speaker amplifier
Description
ML2620 is speaker amplifier with circuit that enables louder sound from small speaker.
ML2620 integrates digital volume, ALC(automatic level controller), and fade-in and fade-out
function.
ML2620 is suitable for portable applications such as mobile phone, portable TV and other thin and small playback devices that is difficult to generate enough volume.
Specification
- CPU interface
- 2 wire serial slave mode
- 3 wire serial
- Loud sound technology for small speaker
- Automatic Level Controller (ALC)
- Fade in and fade out function
- Speaker amplifier
- 8Ω 800mW monaural BTL speaker amplifier
- Volume function
- Clock
- 32kHz to 20MHz
- Power-supply voltage range:
- IO: 1.65 to 3.60V
- Core(LVDD): 2.25 to 2.75V
- Speaker(HVDD): 2.70 to 5.50V
- Package
- 20QFN (4mm×4mm, 0.5mm pitch)
- 20WCSP (2.54mm×2.42mm, 0.5mm pitch)
| Parameter | Symbol | Rating | Unit |
|---|---|---|---|
| Power-supply voltage |
HVDD | 2.7-5.5 | V |
| LVDD | 2.25-2.75 | ||
| IOVDD | 1.65-3.6 | ||
| Clock frequency |
Fc | 0.032-20 | MHz |
| Sperker output |
Po | 800 | ｍW |
| Output load resistor |
RLOAD | 8 | Ω |
Block Diagram
Typical Application Example
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