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PT2001 Datasheet(PDF) 1 Page - Princeton Technology Corp |
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PT2001 Datasheet(HTML) 1 Page - Princeton Technology Corp |
1 / 4 page Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT2001 PRE1.0 - 1 - October , 2007 2.2W×2 Class-D Audio Power Amp. with Headphone Output Preliminary PT2001 DESCRIPTION The PT2001 is a Class-D power amplifier designed for audio equipments, maximum output power can reach up to 2.2W x 2 (VDD= 5V, RL= 4Ω, THD= 10%). The PT2001 composed of exclusively designed Class-D circuitry (patented) by PTC, along with the most advanced semi-conductor technology. When compared to the traditional Class-AB amplifiers, the PT2001’s has a much higher efficiency ( >85%), low heat dissipation, and produces superior audio quality. PT2001’s external circuitry is simple and easily accessible, and consists of flawless self-protection capabilities. The chip’s packaging is small, thus it occupies an insignificant amount of space on the circuit board; therefore, making it the predominant choice when it comes to audio amplifiers. FEATURES • CMOS technology • Stereo, differential input for improved CMRR. • Maximum output power 2.2W (4Ω) x 2 @ THD=10% • Operating on Both BTL (Bridged Tight Loaded) and SE (Single Ended) configuration • No LC filter needed when driving speakers in BTL configuration. • Driving 32Ω headphone on SE configuration. • Highly Improved PSRR (>70dB) for powered from noisy PC-BUS power. • Automatic gain-reduced during headphone attached to the amplifier. • Shutdown function • POP noiseless in shutdown and power ON/OFF period • Built-in short circuit protection • Built-in overheat protection • High efficiency (8Ω load>85%), low heat dissipation • TSSOP 20 pins miniature packages for saving PCB size. APPLICATIONS • Portable media player • Portable DVD player • LCD monitor • Small multimedia speakers • Hand-free phone • Laptop • Other audio applications |
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