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IT2012 －
2.5W/CH Stereo Filter-free Class-D Audio Power Amplifier
Description
The IT2012 is a high efficiency stereo filter-free class-D audio
amplifier which can deliver maximum 2.5W/CH RMS power to 4Ω load with
5.5V supply in a Bridge Tied Load (BTL) configuration.
The IT2012 features independent
shutdown controls for each channel. The gain can be selected to 6, 12,
18, or 24dB utilizing the G0 and G1 gain select pins. Fully
differential design eliminates two input coupling capacitors and
provides increased immunity to noise.
The IT2012 contains Over Current and
Over Temperature Protection, preventing IT2012 from damages of short
current and overheating. It also features good THD+N and self
gain-adjusting depop scheme, achieving high sound quality.
The high performance, low cost
characteristics make IT2012 well suitable for cellular phones, portable
electronic devices, PDAs, smart phones and portable computers.
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Features
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Filterless
Capability
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Only Two
External Component Required
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Fully
Differential Design Eliminates Two Input Coupling Capacitors
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Internally
Generated 300kHz Switching Frequency Eliminates Capacitor and Resistor
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Independent
Shutdown Control for Each Channel
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Selectable
Gain of 6, 12, 18, and 24dB
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2.5V to
5.5V Wide Supply Voltage Range
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Ultra-Low
Distortion: 0.025% THD+N at Po=1W and 8Ω Load
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OCP (Over
Current Protection)
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Large
Output Power Capability: 2W with 4Ω Load and THD<1%
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Low Supply
Current and Shutdown Current
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Self
Gain-adjusting Depop Mechanism
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External
Gain Configuration Capability
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OCP (Over
Current Protection)
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OTP (Over
Temperature Protection)
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Technology
Information:
 Data Sheet
Package:
WCSP-16
QFN-16
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