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Chengdu Sino Microelectronics System - Dual 2.2W Audio Amplifier Plus Stereo Headphone Function

Numéro de référence HWD4863
Description Dual 2.2W Audio Amplifier Plus Stereo Headphone Function
Fabricant Chengdu Sino Microelectronics System 
Logo Chengdu Sino Microelectronics System 





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HWD4863 fiche technique
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HWD4863
Dual 2.2W Audio Amplifier Plus Stereo Headphone
Function
General Description
Key Specifications
TheHWD4863 is a dual bridge-connected audio power ampli- n PO at 1% THD+N
fier which, when connected to a 5V supply, will deliver 2.2W n HWD4863LQ, 3, 4loads
2.5W(typ), 2.2W(typ)
to a 4load (Note 1) or 2.5W to a 3load (Note 2) with less
than 1.0% THD+N. In addition, the headphone input pin
allows the amplifiers to operate in single-ended mode when
driving stereo headphones.
Boomer audio power amplifiers were designed specifically to
provide high quality output power from a surface mount
package while requiring few external components. To sim-
plify audio system design, theHWD4863 combines dual bridge
n HWD4863MTE, 3, 4loads
n HWD4863MTE, 8load
n HWD4863, 8
2.5W(typ), 2.2W(typ)
1.1W(typ)
1.1W(typ)
n Single-ended mode THD+N at 75mW into
320.5%(max)
n Shutdown current
0.7µA(typ)
n Supply voltage range
2.0V to 5.5V
speaker amplifiers and stereo headphone amplifiers on one
chip.
Features
TheHWD4863 features an externally controlled, low-power n Stereo headphone amplifier mode
consumption shutdown mode, a stereo headphone amplifier n “Click and pop” suppression circuitry
mode, and thermal shutdown protection. It also utilizes cir- n Unity-gain stable
cuitry to reduce “clicks and pops” during device turn-on.
n Thermal shutdown protection circuitry
Note 1: AnHWD4863MTE or HWD4863LQ that has been properly mounted to n SOIC, DIP, TSSOP and exposed-DAP TSSOP and LLP
a circuit board will deliver 2.2W into 4. The other package options for the
HWD4863 will deliver 1.1W into 8. See the Application Information sections
packages
for further information concerning theHWD4863MTE and HWD4863LQ.
ApplicationsNote 2: AnHWD4863MTE or HWD4863LQ that has been properly mounted to a
circuit board and forced-air cooled will deliver 2.5W into 3.
n Multimedia monitors
n Portable and desktop computers
n Portable televisions
Typical Application
Note: Pin out shown for DIP and SO packages. Refer to the Connection Diagrams for the pinout of the TSSOP, Exposed-DAP TSSOP, and Exposed-DAP
LLP packages.
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