User Manual
Table Of Contents
- 1. Pin Descriptions
- 2. Typical Connection Diagram
- 3. Characteristic and Specifications
- Recommended Operating Conditions
- Absolute Maximum Ratings
- Analog Input Characteristics
- ADC Digital Filter Characteristics
- Analog Output Characteristics
- Analog Passthrough Characteristics
- PWM Output Characteristics
- Headphone Output Power Characteristics
- Line Output Voltage Level Characteristics
- Combined DAC Interpolation and onChip Analog FIlter Response
- Switching Specifications - Serial Port
- Switching Specifications - I²C Control Port
- DC Electrical Characteristics
- Digital Interface Specifications and Characteristics
- Power Consumption
- 4. Applications
- 4.1 Overview
- 4.2 Analog Inputs
- 4.3 Analog Outputs
- 4.4 Analog In to Analog Out Passthrough
- 4.5 PWM Outputs
- 4.6 Serial Port Clocking
- 4.7 Digital Interface Formats
- 4.8 Initialization
- 4.9 Recommended Power-up Sequence
- 4.10 Recommended Power-Down Sequence
- 4.11 Required Initialization Settings
- 4.12 Control Port Operation
- 5. Register Quick Reference
- 6. Register Description
- 6.1 Chip I.D. and Revision Register (Address 01h) (Read Only)
- 6.2 Power Control 1 (Address 02h)
- 6.3 Power Control 2 (Address 03h)
- 6.4 Power Control 3 (Address 04h)
- 6.5 Clocking Control (Address 05h)
- 6.6 Interface Control 1 (Address 06h)
- 6.7 Interface Control 2 (Address 07h)
- 6.8 Input x Select: ADCA and PGAA (Address 08h), ADCB and PGAB (Address 09h)
- 6.9 Analog and HPF Control (Address 0Ah)
- 6.10 ADC HPF Corner Frequency (Address 0Bh)
- 6.11 Misc. ADC Control (Address 0Ch)
- 6.12 Playback Control 1 (Address 0Dh)
- 6.13 Miscellaneous Controls (Address 0Eh)
- 6.14 Playback Control 2 (Address 0Fh)
- 6.15 MICx Amp Control:MIC A (Address 10h) and MIC B (Address 11h)
- 6.16 PGAx Vol. and ALCx Transition Ctl.: ALC, PGA A (Address 12h) and ALC, PGA B (Address 13h)
- 6.17 Passthrough x Volume: PASSAVOL (Address 14h) and PASSBVOL (Address 15h)
- 6.18 ADCx Volume Control: ADCAVOL (Address 16h) and ADCBVOL (Address 17h)
- 6.19 ADCx Mixer Volume: ADCA (Address 18h) and ADCB (Address 19h)
- 6.20 PCMx Mixer Volume: PCMA (Address 1Ah) and PCMB (Address 1Bh)
- 6.21 Beep Frequency and On Time (Address 1Ch)
- 6.22 Beep Volume and Off Time (Address 1Dh)
- 6.23 Beep and Tone Configuration (Address 1Eh)
- 6.24 Tone Control (Address 1Fh)
- 6.25 Master Volume Control: MSTA (Address 20h) and MSTB (Address 21h)
- 6.26 Headphone Volume Control: HPA (Address 22h) and HPB (Address 23h)
- 6.27 Speaker Volume Control: SPKA (Address 24h) and SPKB (Address 25h)
- 6.28 ADC and PCM Channel Mixer (Address 26h)
- 6.29 Limiter Control 1, Min/Max Thresholds (Address 27h)
- 6.30 Limiter Control 2, Release Rate (Address 28h)
- 6.31 Limiter Attack Rate (Address 29h)
- 6.32 ALC Enable and Attack Rate (Address 2Ah)
- 6.33 ALC Release Rate (Address 2Bh)
- 6.34 ALC Threshold (Address 2Ch)
- 6.35 Noise Gate Control (Address 2Dh)
- 6.36 Status (Address 2Eh) (Read Only)
- 6.37 Battery Compensation (Address 2Fh)
- 6.38 VP Battery Level (Address 30h) (Read Only)
- 6.39 Speaker Status (Address 31h) (Read Only)
- 6.40 Charge Pump Frequency (Address 34h)
- 7. Analog Performance Plots
- 8. Example System Clock Frequencies
- 9. PCB Layout Considerations
- 10. ADC and DAC Digital Filters
- 11. Parameter Definitions
- 12. Package Dimensions
- 13. Ordering Information
- 14. References
- 15. Revision History

DS680F2 23
CS42L52
3/1/13
POWER CONSUMPTION See (Note 20).
20. Unless otherwise noted, test conditions are as follows: All zeros input, slave mode, sample
rate = 48 kHz; No load. Digital (VD) and logic (VL) supply current will vary depending on speed mode
and master/slave operation. “Required Initialization Settings” on page 37 written on power up.
21. RESET
pin 25 held LO, all clocks and data lines are held LO.
22. RESET
pin 25 held HI, all clocks and data lines are held HI.
23. VL current will slightly increase in master mode.
Power Ctl. Registers Typical Current (mA)
Operation
02h 03h 04h
PDN_PGAB
PDN_PGAA
PDN_ADCB
PDN_ADCA
PDN
PDN_MICB
PDN_MICA
PDN_MICBIAS
PDN_HPB[1:0]
PDN_HPA[1:0]
PDN_SPKB[1:0]
PDN_SPKA[1:0]
V
i
VHP
i
VA
i
VD
i
VL
VL=3.3V
(Note 23)
i
VP
VP=3.7V
Total
Power
(mW
rms
)
1
Off
(Note 21)
xxxxxxxxx x x x
1.8 0.00 0.00 0.00
0.00 0.00
0.00
2.5 0.00 0.00 0.00 0.00
2
Standby (Note 22) xxxx1xxxx x x x
1.8 0.00 0.00 0.01
0.00 0.00
0.02
2.5 0.00 0.00 0.02 0.05
3
Mono Record ADC 1 110011111111111
1.8 0.00 1.67 2.32
0.03 0.00
7.24
2.5 0.00 1.87 3.72 14.05
PGA to ADC1010011111111111
1.8 0.00 2.1 2.31
0.03 0.00
7.99
2.5 0.00 2.3 3.72 15.13
MIC to PGA to ADC
(with Bias)
1010010011111111
1.8 0.00 3.48 2.32
0.03 0.00
10.49
2.5 0.00 3.71 3.72 18.65
MIC to PGA to ADC
(no Bias)
1010010111111111
1.8 0.00 3.15 2.32
0.03 0.00
9.90
2.5 0.00 3.37 3.73 17.83
4
Stereo Record ADC1100011111111111
1.8 0.00 2.31 2.37
0.03 0.00
8.48
2.5 0.00 2.53 3.82 15.95
PGA to ADC0000011111111111
1.8 0.00 3.18 2.37
0.03 0.00
10.04
2.5 0.00 3.42 3.81 18.15
MIC to PGA to ADC
(no Bias)
0000000111111111
1.8 0.00 5.32 2.37
0.03 0.00
13.90
2.5 0.00 5.57 3.81 23.53
5
Mono Playback to Headphone 1 111011110111111
1.8 1.59 1.99 2.72
0.01 0.00
11.36
2.5 2.07 2.62 4.27 22.43
6
Mono Playback to Speaker 1 111011111111010
1.8 0.00 0.20 4.42
0.01 1.00
12.05
2.5 0.00 0.22 6.77 21.21
7
Stereo Playback to Headphone 1 111011110101111
1.8 2.77 2.00 2.91
0.01 0.00
13.84
2.5 3.27 2.63 4.28 25.48
8
Stereo Playback to Speaker 1111011111111010
1.8 0.00 0.20 4.38
0.01 1.00
11.98
2.5 0.00 0.22 6.80 21.28
9
Stereo Passthrough to Head-
phone
1111011110101111
1.8 2.79 1.91 1.06
0.01 0.00
10.39
2.5 3.18 2.14 1.81 17.85
10
Mono Record and Playback
PGA in (no MIC) to Mono HP
1010011111101111
1.8 1.77 3.95 4.28
0.03 0.00
18.05
2.5 2.13 4.77 6.63 33.90
11
Phone Monitor
MIC (w/bias) in to Mono Out
1010010011101111
1.8 1.76 5.33 4.28
0.03 0.00
20.52
2.5 2.15 6.19 6.69 37.65
12
Stereo Record and Playback
PGA in (no MIC) to St. HP Out
0000011110101111
1.8 2.76 5.05 4.64
0.03 0.00
22.46
2.5 3.21 5.90 7.17 40.78
13
Stereo Rec. and Full Playback
PGA (no MIC) to St. HP and SPK
0000011110101010
1.8 3.49 5.24 7.20
0.03 1.00
32.47
2.5 3.95 6.10 10.46 55.07