Cirrus Logic CS42L52 - Manual

Copyright
 Cirrus Logic, Inc. 2013
(All Rights Reserved)
http://www.cirrus.com
MAR ’13
DS680F2
Low-Power, Stereo CODEC with Headphone and Speaker Amps
Stereo CODEC
 High Performance Stereo ADC and DAC
– 99 dB (ADC), 98 dB (DAC) Dyn. Range (A-wtd)
– -88 dB THD+N
 Flexible Stereo Analog Input Architecture
– 4:1 Analog Input MUX
– Analog Input Mixing
– Analog Passthrough with Volume Control
– Analog Programmable Gain Amplifier (PGA)
 Programmable Automatic Level Control (ALC)
– Noise Gate for Noise Suppression
– Programmable Threshold and Attack/Release
Rates
 Dual MIC Inputs
– Differential or Single-ended
– +16 dB to +32 dB with 1-dB step Mic Pre-
Amplifiers
– Programmable, Low-noise MIC Bias Levels
 Digital Signal Processing Engine
– Bass and Treble Tone Control, De-emphasis
– Master Vol. and Independent PCM SDIN + ADC
SDOUT Mix Volume Control
– Soft-Ramp and Zero-Cross Transitions
– Programmable Peak-detect and Limiter
– Beep Generator w/Full Tone Control
Class D Stereo/Mono Speaker Amplifier
 No External Filter Required
 High-power Stereo Output at 10% THD+N
– 2 x 1.00 W into 8
 @ 5.0 V
– 2 x 550 mW into 8
 @ 3.7 V
– 2 x 230 mW into 8
 @ 2.5 V
 High-power Mono Output at 10% THD+N
– 1 x 1.90 W into 4
 @ 5.0 V
– 1 x 1.00 W into 4
 @ 3.7 V
– 1 x 350 mW into 4
 @ 2.5 V
 Direct Battery-powered Operation
– Battery Level Monitoring and Compensation
 81% Efficiency at 800 mW
 Phase-aligned PWM Output Reduces Idle
Channel Current
 Spread Spectrum Modulation
 Low Quiescent Current
Stereo Headphone Amplifier
 Ground-centered Outputs
– No DC-Blocking Capacitors Required
– Integrated Negative Voltage Regulator
 High-power Output at -75 dB THD+N
– 2 x 23 mW Into 16
 @ 1.8 V
– 2 x 44 mW Into 16
 @ 2.5 V
(Features continued on page 2 )
Serial Audio
Input/Output
I 2 C Control
+1.65 V to +3.47 V
Interface Supply
Control Port Serial Audio Port
Level Shifter
Multi-bit
 ADC
Beep
+1.65 V to +2.63 V
Analog Supply
Multi-bit
 ADC
ALC
Left HP/Line
Output
Ground-Centered
Amps
Mono mix,
Limiter, Bass,
Treble Adjust
Volume, Mono
Swap, Mix
Right HP/Line
Output
Left
Inputs
Right
Inputs
+1.65 V to +2.63 V
Headphone Supply
Speaker/HP
Switch
+1.60 V to +5.25 V
Battery
Charge Pump
+VHP -VHP
+1.65 V to +2.63 V
Digital Supply
+1.65 V to +2.63 V
Analog Supply
Pulse-Width
Modulator
(PWM)
Stereo/Mono
Full-Bridge
Speaker
Outputs
Battery Level Monitoring & Compensation
Multi-bit
 DAC
MIC Bias
HPF
Selectable
Bias Voltage


ALC
Summing
Programmable
Gain Amps
+16 to +32 dB Diff./
S.E. MIC Pre-Amps
Class D Amps
1
2
3
4
1
2
3
4
+
-
+
-
Reset
CS42L52
DRAFTv1
3/1/13