PTC PT3371
The PT3371 is a Class-AB audio power amplifier. When operating with a 5V supply voltage, it is capable of driving a 4Ω speaker load at a continuous average output of 3W with 10% THD+N. The external application circuit is simple, integrated internal feedback resistor, do without LC low-pass filter.DESCRIPTION
The PT3371 is a Class-AB audio power amplifier. Builtin over- temperature protection, package size is not occupied PCB space. Meanwhile, the PT3371 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 PT3371 3W Class-AB Audio Power Amplifier
FEATURES
● CMOS technology● Supply Voltage(VDD) from 2.5V to 5.5V
● Maximum output power:3W (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 SOP8 package FUNCTION BLOCK DIAGRAM VDD IN OUTP + - + - BYP BIAS SD XOR GND OUTN Tel: 886-2-66296288●Fax: 886-2-29174598● 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan APPLICATION CIRCUIT Cin Ri Input 4 IN 3 BYP CB VDD 0.1uF 100k 1 SD 10uF VDD VDD 6 1uF...