CRD42L51 Datasheet: Stereo CODEC





CRD42L51 Stereo CODEC Datasheet

Part Number CRD42L51
Description Stereo CODEC
Manufacture Cirrus Logic
Total Page 30 Pages
PDF Download Download CRD42L51 Datasheet PDF

Features: www.DataSheet4U.com CS42L51 Low Power, Stereo CODEC with Headphone Amp DIGITAL to ANALOG FEATURES ! 98 dB Dynamic Ran ge (A-wtd) ! -86 dB THD+N ! Headphone A mplifier - GND Centered ANALOG to DIGI TAL FEATURES ! 98 dB Dynamic Range (A-w td) ! -88 dB THD+N – – +32 dB or + 16 dB MIC Pre-Amplifiers Analog Program mable Gain Amplifier (PGA) ! Analog Ga in Controls – – – – – – – – ! On-Chip Charge Pump Provid es -VA_HP No DC-Blocking Capacitor Requ ired 46 mW Power Into Stereo 16 Ω @ 1 .8 V 88 mW Power Into Stereo 16 Ω @ 2 .5 V -75 dB THD+N Bass & Treble Tone Co ntrol, De-Emphasis PCM + ADC Mix w/Inde pendent Vol Control Master Digital Volu me Control Soft Ramp & Zero Cross Trans itions ! +20 dB Digital Boost ! Progra mmable Automatic Level Control (ALC) ! Digital Signal Processing Engine – – Noise Gate for Noise Suppression P rogrammable Threshold and Attack/Releas e Rates ! Independent Channel Control ! Digital Volume Control ! High-Pass Filter Disable for DC Measurements ! Stereo 3:1 Analog I.

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www.DataSheet4U.com
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
– On-Chip Charge Pump Provides -VA_HP
– No DC-Blocking Capacitor Required
– 46 mW Power Into Stereo 16 @ 1.8 V
– 88 mW Power Into Stereo 16 @ 2.5 V
– -75 dB THD+N
! Digital Signal Processing Engine
– Bass & Treble Tone Control, De-Emphasis
– PCM + ADC Mix w/Independent Vol Control
– Master Digital Volume Control
– Soft Ramp & Zero Cross Transitions
! Beep Generator
– Tone Selections Across Two Octaves
– Separate Volume Control
– Programmable On & Off Time Intervals
– 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
– +32 dB or +16 dB MIC Pre-Amplifiers
– Analog Programmable Gain Amplifier
(PGA)
! +20 dB Digital Boost
! Programmable Automatic Level Control (ALC)
– Noise Gate for Noise Suppression
– 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
– Programmable, Low Noise MIC Bias Levels
– 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
∆Σ 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
Advance Product Information
http://www.cirrus.com
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright © Cirrus Logic, Inc. 2005
(All Rights Reserved)
SEPTEMBER '05
DS679A2

                    
                    






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