BL6312
BL6312 is 2.7W/CH Stereo Filter-Free Class-D Audio Power Amplifier manufactured by BELLING.
2.7 W/CH Stereo Filter-Free Class-D Audio Power Amplifier
Features
Output power: 2.7W/Ch with 4Ω loader at VDD=5V 1.5W/Ch with 8Ω loader at VDD=5V
Low supply current (Typical 7m A quiescent current) Low shutdown current (Typical 0.4µA shutdown current) Thermal protection and output over current protection are designed Optimized PWM output stage eliminates LC output filter Independent shutdown control for each channel Select gain of 6, 12, 18, 24 d B Internally generated 300-k Hz switching frequency eliminates capacitor and resistor Internal pull-down resistor on shutdown terminal
General Description
The BL6312 is a 2.7-W high efficiency, stereo, filter-free class-D audio power amplifier in QFN20 package that requires only two external ponents.
Features like 88% efficiency, improved RF-rectification immunity make the BL6312 ideal for cellular handsets. In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the BL6312.
Applications
Mobile phone、PDA MP3/4、PMP Portable electronic devices USB Speakers Educational toys Notebook PC http://.belling..cn
- Page 1 of 8
- Ver1.0
Pin Diagrams
QFN20 PACKAGE (Top View)
20 19 18 17 16
INL+ INLAGND INRINR+
1 G1 2 VOL+ 3 PVDD 4 PGND 5 VOL-
G0 15 VOR+ 14 PVDD 13 PGND 12 VOR- 11
NC SDBL SDBR AVDD
Pin Description
6 7 8 9 10
Pin #
Name
1 G1
2 VOL+
3 PVDD
4 PGND
5 VOL-
6 NC
7 SDBL
8...
