CS42L50
Low Voltage, Stereo CODEC with Headphone Amp
Features
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28-Pin CASON package
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1.8 to 3.3 Volt supply
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24-Bit conversion / 96 kHz sample rate
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96 dB ADC/DAC dynamic range at 3 V supply
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-88/-85 dB ADC/DAC THD+N
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19 mW playback power consumption @ 1.8 V
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Microphone or Line input amplifier with up to
Description
The CS42L50 is a highly integrated, 24-bit, 96 kHz audio
codec.
This device is based on delta-sigma modulation allowing
infinite adjustment of the sample rate between 8 kHz and
100 kHz simply by changing the master clock frequency.
The CS42L50 contains a 2:1 stereo mux, programmable
analog gain control, and digital attenuation on the analog
inputs. The output D/A converters include digital bass
and treble boost, dynamic range compression, limiting,
mixing, volume control and de-emphasis.
The CS42L50 operates from a +1.8 V to +3.3 V supply.
These features are ideal for portable MP3 and MD re-
corders, CD and DVD recorders, digital camcorders, and
other portable systems that require extremely low power
consumption in a minimal amount of space.
ORDERING INFORMATION
CS42L50-KN 28-pin CASON, -10 to 70 °C
CDB42L50
Evaluation Board
32dB of gain
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2:1 stereo mux
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Digital volume control on inputs and outputs
– 96 dB attenuation, 1 dB step size
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Digital bass and treble boost on outputs
– Selectable corner frequencies
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Dynamic range compression and limiting
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De-emphasis for 32 kHz, 44.1 kHz, and 48 kHz
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Headphone amplifier
– 26 mW power output into 16 W load @ 3.0V
supply
– -80 dB THD+N
– 34 dB analog attenuation and mute
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ATAPI mixing functions
II
SCL
RST
VA
SDA
Headphone
Amplifier
Control Port
VL
Analog
Volume
Control
Digital
Volume
Control
Bass/Treble
Boost
Compression
Limiting
∆Σ
DAC
∆Σ
DAC
Analog
Volume
Control
HP_A
Digital Filters
LRCK
De-emphasis
Analog
Filter
HP_B
Gain
Compensation
SCLK
Analog
Filter
Line
Amplifier
AOUT_A
SDIN
Serial Port
AOUT_B
SDOUT
Attenuator
0-96 dB
Attenuator
0-96 dB
ADC
Digital
Filters
MUX
MUX
Gain
AIN_L1
AIN_L2
AIN_R1
AIN_R2
12 dB
ADC
Gain
12 dB
MCLK
MUTEC
Preliminary Product Information
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright
ã
Cirrus Logic, Inc. 2001
(All Rights Reserved)
AUG ‘01
DS544PP1
1
CIRRUS [ CIRRUS LOGIC ]
