(function(){
let w = window.innerWidth;
function setHeaderCssVar() {
const headerEle = document.getElementById('shoplaza-section-header');
if(!headerEle){ return };
document.body.style.setProperty('--window-height', `${window.innerHeight}px`);
document.body.style.setProperty('--header-height', `${headerEle.clientHeight}px`);
const mdScorllHideEle = headerEle.querySelector('.header__mobile .header__scroll_hide');
if (mdScorllHideEle) {
document.body.style.setProperty('--header-scroll-hide-height-md', `${mdScorllHideEle.clientHeight}px`);
}
const pcScorllHideEle = headerEle.querySelector('.header__desktop .header__scroll_hide');
if (pcScorllHideEle) {
document.body.style.setProperty('--header-scroll-hide-height-pc', `${pcScorllHideEle.clientHeight}px`);
}
}
function handlResize() {
if(w == window.innerWidth){return};
w = window.innerWidth;
setHeaderCssVar();
};
function init(){
setHeaderCssVar();
window.removeEventListener('resize', window._theme_header_listener)
window._theme_header_listener = handlResize;
window.addEventListener('resize', window._theme_header_listener);
}
init();
})();
${data.index + 1}/5
Description
TDA7377 Audio Power Amplifier with NE5532 Operational Pre-Amplifier Module DC Audio Amplifier Speaker Power 35w+35w
Product Description
Using the new 7377 power amplifier chip, with the NE5532 pre-amplifier, the power output of the 7377 power amplifier chip is stronger.
Specification
item
value
Output power
35W X 35W
Working voltage
DC 9-16V
Board size
length 50mm width 33mm
Installation Instructions
Note
1, R8, R10 are the magnification setting resistors (the default is about 2 times magnification, you can change the magnification according to your own needs, the resistance can be selected from 10k-68k, the larger the resistance, the higher the magnification, if you use a plug-in resistor, you can Remove the original chip resistor, and solder the plug-in resistor to the pads at both ends of the chip position)
2, This power amplifier board is sold without a heat sink, and a large enough heat sink must be added to the power amplifier board before the test machine (78xx voltage regulator IC does not need to add a heat sink).
