2024年1月3日 · Here, I will elucidate the datasheet of the IC LM3915, its pinout functions, its main electrical specifications, and also a few useful application circuits. The LM3915 is a monolytthic IC designed to sense analogue voltage signals, and produce an incremental or sequential logic switching across its 10 output.

The LM3915 is a monolithic integrated circuit that senses analog voltage levels and drives ten LEDs, LCDs or vacuum fluorescent displays, providing a logarithmic 3 dB/step analog display. …

2019年4月20日 · The LM3915 is a Logarithmic Display Driver IC commonly used in visualizing audio signals. It can drive both 10-segment Bar LED and Dot Matrix LED. The IC also allows the reference voltage and LED current to be easily programmed based on the application by selecting the right value of resistors.

Part #: LM3915. Download. File Size: 1MbKbytes. Page: 25 Pages. Description: Dot/Bar Display Driver. Manufacturer: National Semiconductor (TI).

The LM3915 is a monolithic integrated circuit (IC) designed to function as a linear analog display driver. It's commonly used in various applications where analog voltage levels need to be visually represented, such as audio level meters, VU meters, battery charge indicators, and more.

2020年5月8日 · lm3915是一个单片集成电路，可以感应模拟电压电平并驱动10个ledslcd或真空荧光显示器，提供3分贝/步进模拟显示。一种方法是将显示从条形图调整为移动点显示。

LM3915 is a single-chip integrated circuit that can drive ten LED, LCD or vacuum fluorescent displays by sensing an analog voltage volume into a digital amount. It provides an analog display of order 3dB/, which can be set to a dot or bar display through the MODE foot.

这个简单的led音量电平表采用一块lm3915集成电路，只有很少的外围元件。 从电平表的输入信号被置于ic1的管脚5。ic1的引脚9是显示模式选择（线或点显示）。当9脚悬空ic1工作在点模式。当引脚9连接到引脚3，ic1工作在线模式。

2020年5月8日 · 使用 lm3915 单片集成电路可以设计一个非常简单的音频功率电平表，该电平计可感测模拟电压电平并驱动十个led、lcd或真空荧光显示器，提供对数3db/步模拟显示。

该电路采用了lm3915音量电平指示器集成电路。 该电路直接连接到放大器的扬声器端子，R1需根据扬声器阻抗选择不同的值。 R1 = 10K（4Ω），18K（8Ω），30K（16Ω） 括号内是扬声器阻抗