HWD4863 Headphone Function Datasheet

HWD4863 Datasheet, PDF, Equivalent


Part Number

HWD4863

Description

Dual 2.2W Audio Amplifier Plus Stereo Headphone Function

Manufacture

Chengdu Sino Microelectronics System

Total Page 22 Pages
Datasheet
Download HWD4863 Datasheet


HWD4863
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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.
1

HWD4863
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Connection Diagrams
01288128
Top View
Order Number HWD4863M, HWD4863N
See HWD Package Number M16B for SO
See HWD Package Number N16E for DIP
01288129
Top View
Order Number HWD4863MT
See HWD Package Number MTC20 for TSSOP
01288102
Top View
Order Number HWD4863MTE
See HWD Package Number MXA20A for Exposed-DAP
TSSOP
01288130
Top View
Order Number HWD4863LQ
See HWD Package Number LQA24A for Exposed-DAP LLP
2


Features www.DataSheet4U.com HWD4863 Dual 2.2W A udio Amplifier Plus Stereo Headphone Fu nction HWD4863 Dual 2.2W Audio Amplifi er Plus Stereo Headphone Function Gener al Description TheHWD4863 is a dual bri dge-connected audio power amplifier whi ch, when connected to a 5V supply, will deliver 2.2W to a 4Ω load (Note 1) o r 2.5W to a 3Ω load (Note 2) with les s than 1.0% THD+N. In addition, the hea dphone input pin allows the amplifiers to operate in single-ended mode when dr iving stereo headphones. Boomer audio p ower amplifiers were designed specifica lly to provide high quality output powe r from a surface mount package while re quiring few external components. To sim plify audio system design, theHWD4863 c ombines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip. TheHWD4863 features an externally controlled, low-power consumption shut down mode, a stereo headphone amplifier mode, and thermal shutdown protection. It also utilizes circuitry to reduce “clicks and pops” during devi.
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