GK2171 Rev.1.0
GK2171 ——
3W Audio Power Amplifier with Shutdown Mode
z General Description
--- The GK2171 is a mono bridged audio power amplifier capable of delivering 3W of
continuous average power into a 3Ωload with less than 10% THD when powered by a
5Vpower supply .
--- The GK2171 does not require output coupling capacitors, bootstrap capacitors, or
snubber networks, it is ideally suited for low-power portable systems that require
minimum volume and weight.
--- The GK2171 features include thermal shutdown protection, unity-gain stability, and
extrnal gain set.
z Key Specifications
·PO (5.0V & 10% THD+N)
SOP:into 8Ω
1.5W (typ)
SOP/PP:into 4Ω
2.6W (typ)
SOP/PP:into3Ω
3.0W (typ)
·Shutdown current
0.1 uA (typ)
·THD at 1kHz at 1W continuous average output power into 8Ω load.
0.25% (max)
z Features
·No output coupling capacitors, bootstrap capacitors, orsnubber circuits required
·Unity-gain stable
·SOP packaging
·External gain configuration capability
·Pin compatible with the HWD2171M
z Applications
·Portable computers
·Desktop computers
·Low voltage audio systems
z Operating Ratings
·Temperature Range
·Supply Voltage
﹣40℃~85℃
2.0V≤VDD≤5.5V
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