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PDF BL6311B Data sheet ( Hoja de datos )
| Número de pieza | BL6311B | |
| Descripción | 3 Watt Mono Filter-Free Class-D Audio Power Amplifier | |
| Fabricantes | BELLING | |
| Logotipo |  |
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BL6311B
3 Watt Mono Filter-Free Class-D Audio Power Amplifier
Features
Efficiency With an 8-Ω Speaker:
88% at 400 mW
80% at 100 mW
2.6mA Quiescent Current
0.4µA Shutdown Current
Optimized PWM Output Stage Eliminates LC Output Filter
Internally Generated 250-kHz Switching Frequency Eliminates Capacitor and Resistor
Improved PSRR (−75 dB) and Wide Supply Voltage (2.8 V to 5.5 V) Eliminates Need
a Voltage Regulator
Fully Differential Design Reduces RF Rectification and Eliminates Bypass Capacitor
Improved CMRR Eliminates Two Input Coupling Capacitors
Available in space-saving package: 9-bump WLCSP
for
General Description
The BL6311B is a 3-W high efficiency filter-free class-D audio power amplifier in a wafer
chip scale package (WCSP) that requires only three external components.
Features like 88% efficiency, −75dB PSRR, and improved RF-rectification immunity make
the BL6311B ideal for cellular handsets. In cellular handsets, the earpiece, speaker phone, and
melody ringer can each be driven by the BL6311B.
Applications
Mobile phone、PDA
MP3/4、PMP
Portable electronic devices
Pin Diagrams
http://www.belling.com.cn
- Page 1 of 8 -
Ver1.2
1 page  
Operating Characteristics
VDD = 5V, RI = 150kΩ, TA = 25 , unless otherwise specified.
Symbol Parameter
Conditions
PO Output Power
THD+N=10%, f=1KHz, RL = 4Ω
THD+N=1%, f=1KHz, RL = 4Ω
THD+N=10%, f=1KHz, RL = 8Ω
THD+N=1%, f=1KHz, RL = 8Ω
Total Harmonic
THD+N
Po=1.0Wrms, f=1kHz, RL = 8Ω
Distortion + Noise
SNR Signal-to-Noise ratio VDD=5V, Po=1.0Wrms, RL = 8Ω
BL6311B
Min.
Spec
Typ.
3.0
2.4
1.7
1.4
Units
Max.
W
0.1 %
97 dB
VDD = 3.6V, RI = 150kΩ, TA = 25 , unless otherwise specified.
Symbol Parameter
Conditions
THD+N=10%, f=1KHz, RL = 4Ω
PO Output Power
Total Harmonic
THD+N
Distortion + Noise
THD+N=1%, f=1KHz, RL = 4Ω
THD+N=10%, f=1KHz, RL = 8Ω
THD+N=1%, f=1KHz, RL = 8Ω
Po=0.5Wrms, f=1kHz, RL = 8Ω
KSVR
Vn
Supply ripple
VDD = 3.6V, input ac-grounded with CI = 2uF
rejection ratio
f=217Hz, V(Ripple)=200mVPP
VDD = 3.6V, input ac-grounded No weighting
Output voltage noise
with CI = 2uF, f=20~20kHz A weighting
Common Mode
CMRR
Rejection Ratio
VDD = 3.6V, VIC = 1 VPP, f=217Hz
Min.
Spec
Typ.
1.5
1.2
0.9
0.7
0.1
-68
48
36
-70
Units
Max.
W
%
dB
uVRMS
dB
VDD = 2.8V, RI = 150kΩ, TA = 25 , unless otherwise specified.
Symbol Parameter
Conditions
PO Output Power
Total Harmonic
THD+N
Distortion + Noise
THD+N=10%, f=1KHz, RL = 4Ω
THD+N=1%, f=1KHz, RL = 4Ω
THD+N=10%, f=1KHz, RL = 8Ω
THD+N=1%, f=1KHz, RL = 8Ω
Po=0.2Wrms, f=1kHz, RL = 8Ω
Min.
Spec
Typ.
0.92
0.75
0.52
0.41
0.1
Units
Max.
W
%
http://www.belling.com.cn
- Page 5 of 8 -
Ver1.2
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet BL6311B.PDF ] | |
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