Imagine a cutting-edge piece of audio tech crafted with an audiophile's precision in mind - the seven-band graphic equalizer integrated circuit (IC). Designed with Complementary Metal-Oxide-Semiconductor (CMOS) technology, this IC boasts an ability to deconstruct the audio spectrum into seven unique bands, covering frequencies from the low rumble of 63Hz up to the high-end sizzle of 16kHz.
What sets this IC apart is the convenience and accuracy it provides. Each of these seven frequencies undergoes peak detection and then gets multiplexed to the output. The result? A precise DC representation of the amplitude of each band. No need for external components to tailor the filter responses. A simple off-chip resistor and capacitor are all you require to set the on-chip clock oscillator frequency. Plus, the filter center frequencies smoothly track this frequency.
Operating between a power supply of 2.7 and 5.5 volts, this IC delivers optimal performance at 5 volts. Moreover, it is designed to be incredibly energy efficient, ideal for portable audio devices, with an impressively low quiescent current of less than 1 milliampere.
But it doesn't stop there. Beyond the coupling and decoupling capacitors, you won't need any additional external components. The IC incorporates an intelligent multiplexer controlled by a reset and a strobe, reducing the pin count needed for multiplexer readout to just two. Furthermore, the multiplexer readout rate determines the decay time, with a 10% decay per read, removing the need for external pins for this function.Features: