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CDB43L42 数据表(PDF) 1 Page - Cirrus Logic

部件名 CDB43L42
功能描述  Low Voltage,Stereo DAC With Headphone Amp
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制造商  CIRRUS [Cirrus Logic]
网页  http://www.cirrus.com
标志 CIRRUS - Cirrus Logic

CDB43L42 数据表(HTML) 1 Page - Cirrus Logic

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Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright
© Cirrus Logic, Inc. 2004
(All Rights Reserved)
http://www.cirrus.com
Features
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 mWrms 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
Description
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
24-pin TSSOP
CS43L42-KZZ, Lead Free
-10 to 70 °C
24-pin TSSOP
CDB43L42
Evaluation Board
SCL/CCLK/DIF1 SDA/CDIN/DIF0 AD0/CS/DEM0
MUTEC
Control Port
Digital
Volume
Control
Bass/Treble
Boost
Limiting
Analog
Filter
Analog
Filter
HP_A
HP_B
AOUTA
AOUTB
RST
LRCK
SCLK/DEM1
SDATA
∆Σ
DAC
∆Σ
DAC
External
Mute Control
Analog
Volume
Control
MCLK
Analog
Volume
Control
VA_HP
VA_LINE
VA
VL
GND
VQ_HP
FILT+
REF_GND
VQ_LINE
CS43L42
Low Voltage, Stereo DAC with Headphone Amp
Sep ‘04
DS481PP2


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