CS43131 datasheet(35/156 Pages) CIRRUS

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CS43131 데이터시트(PDF) 35 Page - Cirrus Logic

부품명	CS43131

상세설명	130-dB, 32-Bit High-Performance DAC with Integrated Headphone Driver and Impedance Detection

PDF	156 Pages

Scroll/Zoom	100%

제조업체	CIRRUS [Cirrus Logic]

홈페이지	http://www.cirrus.com

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35 / 156 page

DS1155F1

CS43131

4.3 Class H Amplifier Output

When the charge pump transitions from the higher to the lower set of rail voltages, there is an approximate 5.5-s delay

before the charge pump supplies the lower rail voltages to the amplifiers. This hysteresis ensures that the charge pump

does not toggle between the two rail voltages as signals approach the clip threshold. It also prevents clipping in the

instance of repetitive high-level transients in the input signal. Fig. 4-5 shows examples of this transitional behavior.

Figure 4-5. VCP_FILT Hysteresis

Output Level

+VCP

Output Stage

Rail Voltage

Time

–VCP

5.5 s

–11 dB

+VP_LDO

–VP_LDO

–11.5 dB

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