|
CS42L51_07 Datasheet, PDF (1/88 Pages) Cirrus Logic – Low Power, Stereo CODEC with Headphone Amp | |||
|
CS42L51
Low Power, Stereo CODEC with Headphone Amp
DIGITAL to ANALOG FEATURES
 98 dB Dynamic Range (A-wtd)
 -86 dB THD+N
 Headphone Amplifier - GND Centered
â On-Chip Charge Pump Provides -VA_HP
â No DC-Blocking Capacitor Required
â 46 mW Power Into Stereo 16 ⦠@ 1.8 V
â 88 mW Power Into Stereo 16 ⦠@ 2.5 V
â -75 dB THD+N
 Digital Signal Processing Engine
â Bass & Treble Tone Control, De-Emphasis
â PCM + ADC Mix w/Independent Vol Control
â Master Digital Volume Control
â Soft Ramp & Zero Cross Transitions
 Beep Generator
â Tone Selections Across Two Octaves
â Separate Volume Control
â Programmable On & Off Time Intervals
â Continuous, Periodic or One-Shot Beep
Selections
 Programmable Peak-Detect and Limiter
 Pop and Click Suppression
ANALOG to DIGITAL FEATURES
 98 dB Dynamic Range (A-wtd)
 -88 dB THD+N
 Analog Gain Controls
â +32 dB or +16 dB MIC Pre-Amplifiers
â Analog Programmable Gain Amplifier
(PGA)
 +20 dB Digital Boost
 Programmable Automatic Level Control (ALC)
â Noise Gate for Noise Suppression
â Programmable Threshold and
Attack/Release Rates
 Independent Channel Control
 Digital Volume Control
 High-Pass Filter Disable for DC Measurements
 Stereo 3:1 Analog Input MUX
 Dual MIC Inputs
â Programmable, Low Noise MIC Bias Levels
â Differential MIC Mix for Common Mode
Noise Rejection
 Very Low 64 Fs Oversampling Clock Reduces
Power Consumption
1.8 V to 3.3 V
1.8 V to 2.5 V
1.8 V to 2.5 V
1.8 V to 2.5 V
Serial Audio
Input
Hardware
Mode or I2C &
SPI Software
Mode
Control Data
Reset
Serial Audio
Output
Beep
Generator
Digital
Signal
Processing
Engine
MUX
Switched
Capacitor DAC
Multibit
and Filter
âΣ Modulator
Switched
Capacitor DAC
MUX
and Filter
Headphone
Amp - GND
Centered
Headphone
Amp - GND
Centered
ALC
High Pass
Filters
Volume
Controls
Register
Configuration
ALC
Charge
Pump
Multibit
Oversampling
ADC
MUX
Multibit
Oversampling
ADC
MUX
PGA
PGA
MUX
+32 dB
+32 dB
MIC
Bias
Left HP Out
Right HP Out
Stereo Input 1
Stereo Input 2
Stereo Input 3 /
Mic Input 1 & 2
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2006
(All Rights Reserved)
JULY '06
DS679F1
|
▷ |