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CS43131 Fiches technique(PDF) 35 Page - Cirrus Logic

No de pièce CS43131
Description  130-dB, 32-Bit High-Performance DAC with Integrated Headphone Driver and Impedance Detection
PDF  156 Pages
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Fabricant  CIRRUS [Cirrus Logic]
Site Internet  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS43131 Fiches technique(HTML) 35 Page - Cirrus Logic

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DS1155F1
35
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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