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CS4272 Arkusz danych(PDF) 2 Page - Cirrus Logic

Numer części CS4272
Szczegółowy opis  24-Bit, 192 kHz Stereo Audio CODEC
Download  53 Pages
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Producent  CIRRUS [Cirrus Logic]
Strona internetowa  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS4272 Arkusz danych(HTML) 2 Page - Cirrus Logic

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CS4272
2
DS593F1
Stand-Alone Mode Feature Set
! System Features
– Serial Audio Port Master or Slave Operation
– Internal Oscillator for Master Clock
! D/A Features
– Auto-mute on Static Samples
– 44.1 kHz 50/15
µs De-emphasis Available
– Selectable Serial Audio Interface Formats
"Left Justified up to 24-bit
"I2S up to 24-bit
! A/D Features
– Automatic Dithering for 16-bit Data
– High-pass Filter
– Selectable Serial Audio Interface Formats
"Left Justified up to 24-bit
"I2S up to 24-bit
Software Mode Feature Set
! System Features
– Serial Audio Port Master or Slave Operation
– Internal Oscillator for Master Clock
– Internal Digital Loopback Available
! D/A Features
– Selectable Auto-mute
– Selectable Interpolation Filters
– Selectable 32-, 44.1-, and 48-kHz De-emphasis
Filters
– Configurable ATAPI Mixing Functions
– Configurable Volume and Muting Controls
– Selectable Serial Audio Interface Formats
"Left Justified up to 24-bit
"I2S up to 24-bit
"Right Justified 16, 18, 20, and 24-bit
! A/D Features
– Selectable Dithering for 16-bit Data
– Selectable High-pass Filter or DC Offset Calibration
– Selectable Serial Audio Interface Formats
"Left Justified up to 24-bit
"I2S up to 24-bit
General Description
The CS4272 is a high-performance, integrated audio
CODEC. The CS4272 performs stereo analog-to-digital
(A/D) and digital-to-analog (D/A) conversion of up to
24-bit serial values at sample rates up to 192 kHz.
The D/A offers a volume control that operates with a
1 dB step size. It incorporates selectable soft ramp and
zero crossing transition functions to eliminate clicks and
pops.
The D/A’s integrated digital mixing functions allow a va-
riety of output configurations ranging from a channel
swap to a stereo-to-mono downmix.
Standard 50/15
µs de-emphasis is available for sam-
pling rates of 32, 44.1, and 48 kHz for compatibility with
digital audio programs mastered using the 50/15
µs pre-
emphasis technique.
Integrated level translators allow easy interfacing be-
tween the CS4272 and other devices operating over a
wide range of logic levels.
An on-chip oscillator eliminates the need for an external
crystal oscillator circuit. This can reduce overall design
cost and conserve circuit board space. The CS4272 au-
tomatically uses the on-chip oscillator in the absence of
an applied master clock, making this feature easy to
use.
Independently addressable high-pass filters are avail-
able for the right and left channel of the A/D. This allows
the A/D to be used in a wide variety of applications
where one audio channel and one DC measurement
channel is desired.
The CS4272’s wide dynamic range, negligible distor-
tion, and low noise make it ideal for applications such as
A/V receivers, DVD-R, CD-R, digital mixing consoles,
effects processors, set-top box systems, and automo-
tive audio systems.
Ordering Information
Product
Description
Package
Pb-Free
Grade
Temp Range
Container Order #
CS4272
24-Bit, 192 kHz
Stereo Audio CODEC
28-pin
TSSOP
YES
Commercial
-10° to +70° C
Tube
CS4272-CZZ
Tape & Reel CS4272-CZZR
Automotive
-40° to +85° C
Tube
CS4272-DZZ
Tape & Reel CS4272-DZZR
CDB4272
CS4272 Evaluation Board
No
-
-
-
CDB4272


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