CS43L42 Datasheet, PDF (1/40 Pages) Cirrus Logic – Low Voltage,Stereo DAC With Headphone Amp

CS43L42
Low Voltage, Stereo DAC with Headphone Amp
Features
Description
‰1.8 to 3.3 Volt supply
‰24-Bit conversion / 96 kHz sample rate
‰96 dB dynamic range at 3 V supply
‰-85 dB THD+N
‰Low power consumption
‰Digital volume control
• 96 dB attenuation, 1 dB step size
‰Digital bass and treble boost
• Selectable corner frequencies
• Up to 12 dB boost in 1 dB increments
‰Peak signal limiting to prevent clipping
‰De-emphasis for 32 kHz, 44.1 kHz, and 48 kHz
‰Headphone amplifier
• up to 25 mW_rms power output into 16 Ω load*
• 25 dB analog attenuation and mute
• Zero crossing click free level transitions
‰ATAPI mixing functions
‰24-Pin TSSOP package
* 1 kHz sine wave at 3.3V supply
The CS43L42 is a complete stereo digital-to-analog out-
put system including interpolation, 1-bit D/A conversion,
analog filtering, volume control, line level outputs, and a
headphone amplifier, in a 24-pin TSSOP package.
The CS43L42 is based on delta-sigma modulation,
where the modulator output controls the reference volt-
age input to an ultra-linear analog low-pass filter. This
architecture allows infinite adjustment of the sample rate
between 2 kHz and 100 kHz simply by changing the
master clock frequency.
The CS43L42 contains on-chip digital bass and treble
boost, peak signal limiting, and de-emphasis. The
CS43L42 operates from a +1.8 V to +3.3 V supply and
consumes only 16 mW of power with a 1.8 V supply with
the line amplifier powered-down. These features are
ideal for portable CD, MP3 and MD players and other
portable playback systems that require extremely low
power consumption.
ORDERING INFORMATION
CS43L42-KZ
-10 to 70 °C
CS43L42-KZZ, Lead Free -10 to 70 °C
CDB43L42
24-pin TSSOP
24-pin TSSOP
Evaluation Board
RST
VA
VL
LRCK
SCLK/DEM1
SDATA
SCL/CCLK/DIF1 SDA/CDIN/DIF0 AD0/CS/DEM0
MUTEC
Control Port
External
Mute Control
Digital
Volume
Control
Bass/Treble
Boost
Limiting
∆Σ
DAC
∆Σ
DAC
Analog
Filter
Analog
Filter
VQ_HP
VA_HP
Analog
Volume
Control
Analog
Volume
Control
HP_A
HP_B
AOUTA
AOUTB
GND
MCLK
FILT+ REF_GND
VQ_LINE VA_LINE
Preliminary 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. 2004
(All Rights Reserved)
Sep ‘04
DS481PP2