AS3675 datasheet(59/81 Pages) AMSCO

номер детали	AS3675

подробное описание детали	Flexible Lighting Management Unit

PDF	81 Pages

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производитель	AMSCO [ams AG]

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Datasheet - D e ta i l e d D e s c r i p t i o n

Figure 27. Audio controlled LED internal circuit

The audio controlled LED block is enabled if any of the registers curr30_aud_src[1:0]...curr33_aud_src[1:0],

curr126_aud_on, rgbx_aud_on or curr4x_aud_on not equal zero.

The audio input amplifier (enabled by aud_buf_on=1) is used to allow the attenuation (or amplification of the input sig-

nal) and has the following parameters:

The signal is converted with the ADC (If the audio controlled LED is active, the internal ADC is continuously running at

a sample frequency of 45.4kHz. In this case the ADC cannot be used for any other purpose). The digital processing

converts this signal into 3 channels (ch1, ch2, ch3):

Table 81. Audio input Parameters

Symbol

Parameter

Condition

Min

Typ

Max

Unit

VIN

Input Voltage Range

2.5

Rin_min

min. Input Impedance

at max. input gain (30dB)

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AS3675

AS3675 датащи(PDF) 59 Page - ams AG