CS42L52 Datasheet, PDF (1/82 Pages) Cirrus Logic – Low Power, Stereo CODEC w/Headphone & Speaker Amps

CS42L52
Low Power, Stereo CODEC w/Headphone & Speaker Amps
Stereo CODEC
 High Performance Stereo ADC & DAC
– 98 dB Dynamic Range (A-wtd)
– -88 dB THD+N
 Flexible Stereo Analog Input Architecture
– 4:1 Analog Input MUX
– Analog Input Mixing
– Analog Passthru with Volume Control
– Analog Programmable Gain Amplifier (PGA)
 Programmable Automatic Level Control (ALC)
– Noise Gate for Noise Suppression
– Programmable Threshold & Attack/Release
Rates
 Dual MIC Inputs
– Differential or Single-Ended
– +16 dB to +32 dB w/1dB step MIC Pre-
Amplifiers
– Programmable, Low Noise MIC Bias Levels
 Digital Signal Processing Engine
– Bass & Treble Tone Control, De-Emphasis
– Master Vol. and Independent PCM SDIN + ADC
SDOUT Mix Volume Control
– Soft-Ramp & 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 Stereo Output Power at 10% THD+N
– 2 x 1.00 W into 8 Ω @ 5.0 V
– 2 x 550 mW into 8 Ω @ 3.7 V
– 2 x 230 mW into 8 Ω @ 2.5 V
 High Mono Output Power at 10% THD+N
– 1 x 1.90 W into 4 Ω @ 5.0 V
– 1 x 1.00 W into 4 Ω @ 3.7 V
– 1 x 350 mW into 4 Ω @ 2.5 V
 Direct Battery Powered Operation
– Battery Level Monitoring & Compensation
 82% 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 Ω @ 1.8 V
– 2 x 44 mW Into 16 Ω @ 2.5 V
(Features continued on page 2)
+1.65 V to +2.63 V
Analog Supply
Summing
Programmable
Gain Amps
Σ
Left
1
2
Inputs
3
4
Right
1
2
Inputs
3
4
Multi-bit
ΔΣ ADC
Σ
+16 to +32 dB Diff./
S.E. MIC Pre-Amps
MIC Bias
+1.65 V to +2.63 V
Digital Supply
+1.60 V to +5.25 V
Battery
Battery Level Monitoring & Compensation
Temperature Monitor
ALC
Beep
Pulse-Width
Modulator
(PWM)
Volume, Mono
Swap, Mix
Mono mix,
Limiter, Bass,
Treble Adjust
HPF
ALC
Multi-bit
ΔΣ DAC
Control Port
Serial Audio Port
Level Shifter
+ Stereo/Mono
- _Full-Bridge
+
-
Speaker
Outputs
Class D Amps
Left HP/Line
Output
Ground-Centered
Amps
-VHP
+VHP
Charge Pump
Right HP/Line
Output
Speaker/HP
Switch
+1.65 V to +2.63 V
Headphone Supply
Selectable
Bias Voltage
+1.65 V to +3.47 V
Interface Supply
I²C Control
Reset
Serial Audio
Input/Output
+1.65 V to +2.63 V
Analog Supply
Advance Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2006
(All Rights Reserved)
DECEMBER '06
DS680A1