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3.2W Class-F Audio Power Amplifier Tel: 886-2-66296288‧Fax: 886-2-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian Dist,, New Taipei City, 23145, Taiwan

DESCRIPTION

The PT3300 is a Class -F audio power amplifier with high efficiency and high quality. It has two modes of operation, Class-D mode and Class-F(Class-AB) mode, so can avoid FM radio interference. When operating with a 5V supply voltage, it is capa ble of driving a 4Ω speaker load at a continuous average output of 3.2W with 10% THD+N. The external application circuit is simple, integrated internal feedback resistor, do without LC low -pass filter. The PT3300 has HSOP8 (with heat sink) package, and has low EMI. It is ve ry suitable for small volume, convenient portable audio products with FM radio. Built-in over-temperature protection, package size is not occupied PCB space. Meanwhile, the PT33 00 offers built -in and shut -down control circuitry for optimal pop-free performance.

APPLICATIONS

 Portable speaker  LCD TV or Monitor  Laptop or MID  Portable DVD

FEATURES

 CMOS technology  Supply Voltage(VDD) from 2.5V to 5.0V  Avoid FM radio interference  Maximum output power:3.2W (VDD=5V, RL=4Ω, THD=10%)  Integrated low-pass filter for out-of-band noise rejection  Gv can be adjusted by adjusting the input resistance  Shutdown function, turn on can into save mode  Built-in pop and click noise suppress  Built-in over-temperature protection  Available in HSOP8 package FUNCTION BLOCK DIAGRAM MODE BIAS XOR IN MODE BYP SD VDD GND OUTN OUTP

VER1.1 2 August 2018 APPLICATION CIRCUIT MODE: 0-Class-F 1-Class-D Input Cin 0.39uF Ri MODE 1uFVDD 100k 470uF GND OUTN VDDSD OUTP 1uF VDD MODE IN BYP 6 7

VER1.1 3 August 2018

ORDERING INFORMATION

Valid part Number Package Type Top Code PT3300-HS 8-pin HSOP PT3300-HS PIN CONFIGURATION HSOP-8 PACKAGE SD BYP MODE IN OUTP GND VDD OUTN TOP VIEW PIN DESCRIPTION PIN NUMBER I/O SYMBOL DESCRIPTION

1 I SD Shutdown pin

Entire IC into the shutdown mode when this pin connected to the VDD

2 I BYP Internal bias reference bypassing

3 I MODE Class-F/ Class-D mode selection

4 I IN Channel input

5 O OUTN Channel output(-)

6 P VDD Supply voltage

7 G GND Ground

8 O OUTP Channel output(+)

VER1.1 11 August 2018 IMPORTANT NOTICE Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied. Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian Dist., New Taipei City 23145, Taiwan Tel : 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw