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PDF ( 数据手册 , 数据表 ) HWD2038

零件编号 HWD2038
描述 Mono 2W Audio Power Amplifiers
制造商 ETC
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HWD2038 数据手册, 描述, 功能
CS2 DATA SHEET
HWD2038 ——
Mono 2W Audio Power Amplifiers with DC Volume
Control
z General Description
---The HWD2038 is a monolithic integrated circuit that provides DC volume control,
and mono bridged audio power amplifiers capable of producing 2W into 4Ωwith less
than1.0% THD or 2.2W into 3Ω with less than 1.0%THD.
---The HWD2038 is designed specifically to provide high quality audio from a surface
mount package while requiring few external components. It incorporates a DC volume
control that consists of 31 steps that are individually selected by a variable DC voltage
level on the volume control pin. The range of the steps are from 0dB - 78dB. Each gain
step corresponds to a specific input voltage range.
---The HWD2038 features an externally controlled, low-power consumption shutdown
mode, and thermal shutdown protection. It also utilizes circuitry to reduce “clicks and
pops” during device turn-on.
z Key Specifications
·PO at1THDN
·Shutdown current
z Features
into 3Ω
into 4Ω
into 8Ω
2.2W typ
2.0W typ
1.1W typ
0.7 uAtyp
·DC Volume Control Interface
·Stereo switchable bridged
·No output coupling capacitors, or snubber circuits required
·“Click and pop” suppression circuitry
·Thermal shutdown protection circuitry
·TSSOP-20 packaging
z Applications
·Portable and Desktop Computers
·Multimedia Monitors
·Portable Radios, PDAs, and Portable TVs
Rev1.1 -1- 100524







HWD2038 pdf, 数据表
CS2 DATA SHEET
20-Lead Molded TSSOP, Exposed Pad
Order Number HWD2038MTE
----------------------------------------------------------------------------------------------------------------------
Rev1.1 -8- 100524














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