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PDF BL4863 Data sheet ( Hoja de datos )
| Número de pieza | BL4863 | |
| Descripción | Dual 2.2W Audio Amplifier Plus Stereo Headphone Function | |
| Fabricantes | BELLING | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de BL4863 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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BL4863
Dual 2.2W Audio Amplifier Plus Stereo Headphone Function
Features
Stereo headphone amplifier mode
Unity-gain stable
Power output at 5.0V, 1% THD+N, 3Ω
2.50 W (typ.)
Power output at 5.0V, 1% THD+N, 4Ω
2.20 W (typ.)
Power output at 5.0V, 1% THD+N, 8Ω
1.25 W (typ.)
Single-ended mode TND+N at 75mW into 32 Ω load 0.5% (max)
Ultra-low shutdown current
0.1 uA (typ.)
2.0V – 5.5V power operation range
Improved circuitry eliminates pop-click noise during turn-on and turn-off transitions
Thermal shutdown protection circuitry
External gain configuration capability
Exposed-DAP TSSOP20 package , DIP16 package SOP16 package
General Description
The BL4863 is a dual BTL connected Class-AB audio power amplifier designed for multimedia
monitors and other portable applications. It is capable of delivering 2.5 watts of continuous
average power to a 3Ω BTL load or 2.2 watts to a 4Ω BTL load with less than 1% distortion
(THD+N) from a 5VDC power supply. In addition, the HP-IN input pin allows the BL4863 to
operate in single-ended mode and drive stereo headphones.
The BL4863 was designed specifically to provide high quality output power with a minimal
amount of external components. With dual bridge speaker amplifiers and stereo headphone
amplifiers on one chip, it simplifies audio system design.
The BL4863 features an externally controlled shutdown mode, a stereo headphone driver mode,
and thermal shutdown protection. With special pop-click eliminating circuit, the BL4863
provides perfect pop-click characteristic during turn-on and turn-off transitions.
The BL4863 is unity-gain stable and can be configured by external gain-setting resistors.
Applications
Multimedia monitors
Portable and desktop computers
Portable televisions
http://www.belling.com.cn
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Total 11 Pages
1 page  
BL4863
Electrical Characteristics for Single-Ended Operation (VDD = 5V, TA = 25℃)
Symbol Parameter
Conditions
VOS Output Offset Voltage
VIN = 0V
THD+N<=0.5%, f=1KHz, 32Ω Load
PO Output Power
THD+N<=1%, f=1KHz, 8Ω Load
THD+N<=10%, f=1KHz, 8ΩLoad
Total Harmonic
THD+N
Distortion + Noise
20Hz≤f≤20kHz, AVD = -1,
PO = 75mW, RL =32Ω
Power Supply Rejection
PSRR
VDDRIPPLE=0.2VRMS , f=1KHz, CB=1μ F
Ratio
XTALK Channel Separation
SNR Signal to Noise Ratio
f=1KHz, CB=1μ F
PO =340mW, RL = 8Ω
Min.
-50
75
Spec
Typ.
5
92
350
450
0.1
70
80
97
Units
Max.
50 mV
mW
%
dB
dB
dB
http://www.belling.com.cn
-5-
Total 11 Pages
5 Page 
BL4863
16 - 引脚模式的 SOP 封装
http://www.belling.com.cn
- 11 -
Total 11 Pages
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet BL4863.PDF ] | |
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