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CS42325 датащи(PDF) 2 Page - Cirrus Logic

номер детали CS42325
подробное описание детали  10-In, 6-Out, 2 Vrms Audio CODEC with Headphone
Download  71 Pages
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производитель  CIRRUS [Cirrus Logic]
домашняя страница  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS42325 датащи(HTML) 2 Page - Cirrus Logic

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2
DS838A2
CS42325
System Features
High Performance 24-bit Converters
Multi-bit Delta-Sigma Modulator
Up to 96 kHz Sampling Rates
Direct Interface with 1.8 V to 3.3 V Logic Levels
Supports Asynchronous Serial Port Operation
Two Independent Clock Domains
ADC, DAC1, and DAC2 can be
Independently Assigned to the Two Clock
Domains
Each Serial Port Supports Master or Slave
Operation
Internal Digital Loopback
+3.3 V Analog Power Supply
+3.3 V Digital Power Supply
+9 V to +12 V High-Voltage Power Supply
Hardware or Software Mode Configuration
Supports I²C® and SPISoftware Interface
General Description
The CS42325 is a highly integrated stereo audio
CODEC. The CS42325 performs stereo analog-to-
digital (A/D) and up to four channels of digital-to-analog
(D/A) conversion of up to 24-bit serial values at sample
rates up to 96 kHz.
A 5:1 stereo input multiplexer is included for selecting
between line-level inputs. The output of the input multi-
plexer is followed by an advanced 3rd-order, multi-bit
delta-sigma modulator and digital filtering/decimation.
Sampled data is transmitted by the serial audio inter-
face at rates from 4 kHz to 96 kHz, in either Slave or
Master Mode.
The D/A converter is based on a 5th-order multi-bit del-
ta-sigma modulator with an ultra-linear low-pass filter
and offers a volume control that operates with a 0.5 dB
step size. It incorporates selectable soft ramp and zero
crossing transition functions to eliminate clicks and
pops.
An integrated 7:1 stereo output multiplexer on each of
the three stereo 2 Vrms line-level outputs is used to se-
lect any of the 5 stereo analog inputs, for analog bypass
support, or the outputs of the 2 internal DACs. Each
2 Vrms output can be muted with the selectable analog
mute function. Analog output 3 has a built in headphone
driver and can be used either as a line output or head-
phone output.
Standard 50/15 μs de-emphasis is available for a
44.1 kHz sample rate for compatibility with digital audio
programs mastered using the 50/15 μs pre-emphasis
technique.
Integrated digital level translators allow easy interfacing
between the CS42325 and other devices operating over
a wide range of logic levels.
The CS42325 is available in a 48-pin LQFP package in
Commercial (-40°C to +85°C) and Automotive (-40°C to
+105°C) grades. The CDB42325 Customer Demonstra-
tion board is also available for device evaluation and
implementation suggestions. Please refer to “Ordering
information” on page 71 for complete details.


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