Audio Amplifier
Princeton Technology Corp. is a highly-qualified, Taiwan-based supplier and manufacturer of Audio Amplifier, encoder decoder, and GPS receivers. The supplier has been recognized as one of the most professional manufacturers in the industry since 1986. With both experience and innovation, the supplier is confident of providing buyers with quality Audio Amplifiers.
Audio Amplifier
Audio amplifiers developed by Princeton Technology Corp. offer high quality audio for mobile phones and various types of speakers. Princeton Technology’s excellent supply of world-class quality audio amplifiers is based in state-of-the-art facilities and under strict quality control.
Class D audio amplifier uses pulse-width modulated (PWM) signals instead of typical class-AB audio amplifiers linear signal.
Audio Amplifier Class D’s PWM signal has audio signal and PWM switching frequency with harmonics. Compared with class-AB audio amplifier, the class-D audio amplifier is much more efficient due to the output MOSFET switch from high impedance to low impedance operating at nanoseconds in the active regions, resulting in very little power loss during the output stage. Additionally, the inductive element of the LC filter stores energy from cycle-to-cycle, ensuring that switching power is not lost in the speakers.
PTC is a design expert in Class-D audio amplifier. PT2333 Audio Amplifier produces a maximum output power of up to 2.5W (VDD = 5V, RL = 4, THD = 10%) and can work reliably without a heat sink.
To support customers with limited PCB space, a simplified output filter stage may be used. PT2333 Audio Amplifiers offer different choices of small form-factor packaging (9-pin CSP for mobile phones and 10-pin MSOP for GPS PND, PMP, and PDA applications) which can meet the mechanical requirements for typical mobile phones.
PTC has accumulated many years of experience in the design and manufacture of Class-AB and Class-D audio amplifiers used in products such as PDA, electronic dictionaries, PC speakers, iPod speakers, LCD monitors, and LCD TVs. Audio amplifiers series were launched throughout the past 5 years, capable of delivering a range of powers from 1W to 20W.
Audio Amplifier (PT2333) is based on advanced CMOS process and utilizes Class-D audio amplifier circuitry exclusively designed by PTC in order to achieve its high efficiency performance.
- CMOS Technology
- Operating voltage range from 2.7V up to 5.5V
- Differential Analog Input
- Maximum output power 2.5W (4Ω) @ THD=10%
- Output low-pass LC Filter Not Required
- Voltage Gain Determinate by the External Resister
- Contains Shutdown Function
- POP Noises Free in Shutdown and Power ON/OFF Period
- Built-in Short Circuit Protection
- Built-in Overheat Protection
- High efficiency (8Ω load > 85%), Low Heat Dissipation
- MSOP-10 Pins and W-CSP 9 Pins Miniature Packages
Main Products:
Audio Amplifier, LCD Driver, Encoder Decoder, Remote Keyless Entry, Lighting Ballast, Multi-media Audio IC, Display (LED / VFD / LCD / OLED) Driver IC, RF IC, Encoder IC, Decoder IC, DSP IC, MCU IC, Remote Controller IC, AC3 Decoder IC, RDS IC, Dimming Ballast Controller IC, DVD Processor IC, Video
