CDB43L43 Ver la hoja de datos (PDF) - Cirrus Logic
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CDB43L43 Datasheet PDF : 36 Pages
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CS43L43
Low Voltage, Stereo DAC with Headphone Amp
Features
16-Pin TSSOP Package
1.8 to 3.3 Volt Supply
24-Bit Conversion / 96 kHz Sample Rate
94 dB Dynamic Range at 3 V Supply
-85 dB THD+N at 1.8 V Supply
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 22 mWrms Power Output into 16 Ω Load*
• 25 dB Analog Attenuation and Mute
• Zero Crossing Click-free Level Transitions
ATAPI Mixing Functions
* 1 kHz sine wave at 3.3V supply
Description
The CS43L43 is a complete stereo digital-to-analog out-
put system including interpolation, 1-bit D/A conversion,
analog filtering, volume control, and a headphone ampli-
fier, in a 16-pin TSSOP package.
The CS43L43 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 CS43L43 contains on-chip digital bass and treble
boost, peak signal limiting and de-emphasis. The
CS43L43 operates from a +1.8 V to +3.3 V supply and
consumes only 16 mW of power with a 1.8 V supply.
These features are ideal for portable CD, MP3 and MD
players and other portable playback systems that require
extremely low power consumption.
ORDERING INFORMATION
CS43L43-KZ
-10 to 70 °C 16-pin TSSOP
CS43L43-KZZ, Lead Free -10 to 70 °C 16-pin TSSOP
CDB43L43
Evaluation Board
RST
DIF1/SDA
DIF0/SCL
CONTROL PORT INTERFACE
LRCK
SCLK/DEM
SDATA
SERIAL
AUDIO
INTERFACE
DE-
EMPHASIS
DIGITAL
VOLUME
CONTROL
BASS/TREBLE
BOOST
LIMITING
DIGITAL
FILTER
∆Σ
DAC
∆Σ
DAC
ANALOG
FILTER
ANALOG
VOLUME
CONTROL
ANALOG
FILTER
ANALOG
VOLUME
CONTROL
HEAD-
PHONE
AMPLIFIER
HP_A
HP_B
MCLK
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)
JUL ‘04
DS479PP3
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