CS42L51-CNZR datasheet(4/83 Pages) CIRRUS

No de pièce	CS42L51-CNZR

Description	Low Power, Stereo CODEC with Headphone Amp

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Fabricant	CIRRUS [Cirrus Logic]

Site Internet	http://www.cirrus.com

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4

DS679A2

CS42L51

4.5.3 High-Impedance Digital Output ........................................................................... 38

4.5.4 Quarter- and Half-Speed Mode ........................................................................... 39

4.6 Digital Interface Formats ................................................................................................. 39

4.7 Initialization ...................................................................................................................... 40

4.8 Recommended Power-Up Sequence .............................................................................. 40

4.9 Recommended Power-Down Sequence ......................................................................... 41

4.10 Software Mode .............................................................................................................. 42

4.10.1 SPI Control ........................................................................................................ 42

4.10.2 I²C Control ......................................................................................................... 42

4.10.3 Memory Address Pointer (MAP) ....................................................................... 44

4.10.3.1 Map Increment (INCR) .......................................................................... 44

5. REGISTER QUICK REFERENCE .......................................................................................... 45

6. REGISTER DESCRIPTION .................................................................................................... 47

6.1 Chip I.D. and Revision Register (Address 01h) (Read Only) ........................................... 47

6.2 Power Control 1 (Address 02h) ....................................................................................... 47

6.3 MIC Power Control & Speed Control (Address 03h) ...................................................... 48

6.4 Interface Control (Address 04h) ...................................................................................... 49

6.5 MIC Control (Address 05h) .............................................................................................. 51

6.6 ADC Control (Address 06h) ............................................................................................. 52

6.7 ADCx Input Select, Invert & Mute (Address 07h) ............................................................ 53

6.8 DAC Output Control (Address 08h) ................................................................................. 54

6.9 DAC Control (Address 09h) ............................................................................................. 55

6.10 ALCX & PGAX Control:

ALCA, PGAA (Address 0Ah) & ALCB, PGAB (Address 0Bh) ..................................... 56

6.11 ADCx Attenuator:

ADCA (Address 0Ch) & ADCB (Address 0Dh) ............................................................ 57

6.12 ADCx Mixer Volume Control:

ADCA (Address 0Eh) & ADCB (Address 0Fh) ............................................................. 58

6.13 PCMX Mixer Volume Control:

PCMA (Address 10h) & PCMB (Address 11h) ............................................................. 59

6.14 Beep Frequency & Timing Configuration (Address 12h) ............................................... 60

6.15 Beep Off Time & Volume (Address 13h) ....................................................................... 61

6.16 Beep Configuration & Tone Configuration (Address 14h) ............................................. 62

6.17 Tone Control (Address 15h) .......................................................................................... 63

6.18 AOUTx Volume Control:

AOUTA (Address 16h) & AOUTB (Address 17h) ......................................................... 64

6.20 Limiter Threshold SZC Disable (Address 19h) .............................................................. 65

6.21 Limiter Release Rate Register (Address 1Ah) ............................................................... 66

6.22 Limiter Attack Rate Register (Address 1Bh) .................................................................. 67

6.23 ALC Enable & Attack Rate (Address 1Ch) .................................................................... 67

6.24 ALC Release Rate (Address 1Dh) ................................................................................. 68

6.25 ALC Threshold (Address 1Eh) ....................................................................................... 69

6.26 Noise Gate Configuration & Misc. (Address 1Fh) .......................................................... 70

6.27 Status (Address 20h) (Read Only) ................................................................................ 71

6.28 Charge Pump Frequency (Address 21h) ....................................................................... 71

7. ANALOG PERFORMANCE PLOTS ...................................................................................... 72

7.1 Headphone THD+N versus Output Power Plots ............................................................. 72

7.2 ADC_FILT+ Capacitor Effects on THD+N ....................................................................... 74

8. EXAMPLE SYSTEM CLOCK FREQUENCIES ...................................................................... 75

8.1 Auto Detect Enabled ........................................................................................................75

8.2 Auto Detect Disabled .......................................................................................................76

9. PCB LAYOUT CONSIDERATIONS ....................................................................................... 77

9.1 Power Supply, Grounding ................................................................................................ 77

9.2 QFN Thermal Pad ........................................................................................................... 77

Numéro de pièce similaire - CS42L51-CNZR

Fabricant	No de pièce	Fiches technique	Description
Cirrus Logic	CS42L51-CNZR	1Mb / 88P	Low Power, Stereo CODEC with Headphone Amp

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Description similaire - CS42L51-CNZR

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CS42L51-CNZR Fiches technique(PDF) 4 Page - Cirrus Logic

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