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CDB42L55 Datasheet(PDF) 6 Page - Cirrus Logic |
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CDB42L55 Datasheet(HTML) 6 Page - Cirrus Logic |
6 / 73 page 6 DS773F1 CS42L55 6.30 ALC Release Rate (Address 25h) ................................................................................................ 63 6.30.1 ALC Release Rate ............................................................................................................... 63 6.31 ALC Threshold (Address 26h) ...................................................................................................... 64 6.31.1 ALC Maximum Threshold .................................................................................................... 64 6.31.2 ALC Minimum Threshold ..................................................................................................... 64 6.32 Noise Gate Control (Address 27h) ............................................................................................... 64 6.32.1 Noise Gate All Channels ..................................................................................................... 64 6.32.2 Noise Gate Enable .............................................................................................................. 65 6.32.3 Noise Gate Threshold and Boost ........................................................................................ 65 6.32.4 Noise Gate Delay Timing .................................................................................................... 65 6.33 ALC and Limiter Soft Ramp, Zero Cross Disables (Address 28h) ................................................ 65 6.33.1 ALCx Soft Ramp Disable ..................................................................................................... 65 6.33.2 ALCx Zero Cross Disable .................................................................................................... 65 6.33.3 Limiter Soft Ramp Disable ................................................................................................... 66 6.34 Status (Address 29h) (Read Only) ............................................................................................... 66 6.34.1 HPDETECT Pin Status (Read Only) ................................................................................... 66 6.34.2 Serial Port Clock Error (Read Only) .................................................................................... 66 6.34.3 DSP Engine Overflow (Read Only) ..................................................................................... 66 6.34.4 MIXx Overflow (Read Only) ................................................................................................. 66 6.34.5 ADCx Overflow (Read Only) ...............................................................................................67 6.35 Charge Pump Frequency (Address 2Ah) ..................................................................................... 67 6.35.1 Charge Pump Frequency .................................................................................................... 67 7. PCB LAYOUT CONSIDERATIONS ..................................................................................................... 68 7.1 Power Supply ................................................................................................................................. 68 7.2 Grounding ....................................................................................................................................... 68 7.3 QFN Thermal Pad .......................................................................................................................... 68 8. ANALOG VOLUME NON-LINEARITY (DNL & INL) ............................................................................ 69 9. ADC & DAC DIGITAL FILTERS .......................................................................................................... 70 10. PARAMETER DEFINITIONS .............................................................................................................. 71 11. PACKAGE DIMENSIONS .................................................................................................................. 72 THERMAL CHARACTERISTICS .......................................................................................................... 72 12. ORDERING INFORMATION .............................................................................................................. 73 13. REFERENCES .................................................................................................................................... 73 14. REVISION HISTORY .......................................................................................................................... 73 LIST OF FIGURES Figure 1.Typical Connection Diagram ....................................................................................................... 10 Figure 2.CMRR Test Configuration ........................................................................................................... 12 Figure 3.HP Output Test Configuration ..................................................................................................... 15 Figure 4.Line Output Test Configuration ................................................................................................... 15 Figure 5.Serial Port Timing (Slave Mode) ................................................................................................. 17 Figure 6.Serial Port Timing (Master Mode) ............................................................................................... 17 Figure 7.I²C Control Port Timing ............................................................................................................... 18 Figure 8.Power Consumption Test Configuration ..................................................................................... 19 Figure 9.Analog Input Signal Flow ............................................................................................................ 23 Figure 10.Stereo Pseudo-Differential Input ............................................................................................... 24 Figure 11.ALC Operation .......................................................................................................................... 25 Figure 12.DSP Engine Signal Flow ........................................................................................................... 26 Figure 13.Analog Output Stage ................................................................................................................. 27 Figure 14.Adaptive Mode 00 ..................................................................................................................... 28 Figure 15.VHPFILT Transitions ................................................................................................................. 30 Figure 16.VHPFILT Hysteresis ................................................................................................................. 30 Figure 17.Class H Power to Load vs. Power from VCP Supply ................................................................ 31 |
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Similar Description - CDB42L55 |
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