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CDB4272 PDF даташит

Спецификация CDB4272 изготовлена ​​​​«Cirrus Logic» и имеет функцию, называемую «24-Bit / 192 kHz Stereo Audio CODEC».

Детали детали

Номер произв CDB4272
Описание 24-Bit / 192 kHz Stereo Audio CODEC
Производители Cirrus Logic
логотип Cirrus Logic логотип 

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CDB4272 Даташит, Описание, Даташиты
CS4272
24-Bit, 192 kHz Stereo Audio CODEC
D/A Features
! High Performance
– 114 dB Dynamic Range
– -100 dB THD+N
! Up to 192 kHz Sampling Rates
! Differential Analog Architecture
! Volume Control with Soft Ramp
– 1 dB Step Size
– Zero Crossing Click-free Transitions
! Selectable Digital Filters
– Fast and Slow Roll Off
! ATAPI Mixing Functions
! Selectable Serial Audio Interface Formats
– Left Justified up to 24-bit
– I2S up to 24-bit
– Right Justified 16-, 18-, 20-, and 24-Bit
! Control Output for External Muting
! Selectable 50/15 µs De-emphasis
A/D Features
! High Performance
– 114 dB Dynamic Range
– -100 dB THD+N
! Up to 192 kHz Sampling Rates
! Differential Analog Architecture
! Multi-bit Delta Sigma Conversion
! High-pass Filter or DC Offset Calibration
! Low-Latency Digital Anti-alias Filtering
! Automatic Dithering of 16-bit Data
! Selectable Serial Audio Interface Formats
– Left Justified up to 24-bit
– I2S up to 24-bit
System Features
! Direct Interface with 5V to 2.5V Logic Levels
! Internal Digital Loopback
! On-chip Oscillator
! Stand-Alone or Control Port Functionality
2.5 V to 5 V
3.3 V to 5 V
5V
Hardware or
I2C/SPI
Control Data
Reset
Serial
Audio
Input
Serial
Audio
Output
Register / Hardware
Configuration
Volume
Control
Volume
Control
Internal Voltage
Reference
Internal
Oscillator
External
Mute Control
Selectable
Interpolation
Filter
Selectable
Interpolation
Filter
∆Σ Modulator
∆Σ Modulator
Switched Capacitor
DAC and Filter
Switched Capacitor
DAC and Filter
High Pass Filter &
DC Offset Calibration
High Pass Filter &
DC Offset Calibration
Low-Latency
Anti-Alias Filter
Low-Latency
Anti-Alias Filter
Multibit
Oversampling
ADC
Multibit
Oversampling
ADC
Left and
Right Mute
Controls
Left
Differential
Output
Right
Differential
Output
Left
Differential
Input
Right
Differential
Input
Cirrus Logic, Inc.
www.cirrus.com
Copyright © Cirrus Logic, Inc. 2005
(All Rights Reserved)
AUGUST '05
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CDB4272 Даташит, Описание, Даташиты
CS4272
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
CS4272
24-Bit, 192 kHz
28-pin
Stereo Audio CODEC TSSOP
CDB4272 CS4272 Evaluation Board
Pb-Free
YES
No
Grade
Commercial
Automotive
-
Temp Range
-10° to +70° C
-40° to +85° C
-
Container Order #
Tube CS4272-CZZ
Tape & Reel CS4272-CZZR
Tube CS4272-DZZ
Tape & Reel CS4272-DZZR
- CDB4272
2 DS593F1









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CDB4272 Даташит, Описание, Даташиты
CS4272
TABLE OF CONTENTS
1. PIN DESCRIPTIONS - SOFTWARE MODE ............................................................................. 5
2. PIN DESCRIPTIONS - STAND-ALONE MODE ....................................................................... 7
3. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 9
SPECIFIED OPERATING CONDITIONS ................................................................................. 9
ABSOLUTE MAXIMUM RATINGS ........................................................................................... 9
DAC ANALOG CHARACTERISTICS - COMMERCIAL GRADE............................................ 10
DAC ANALOG CHARACTERISTICS - AUTOMOTIVE GRADE ............................................ 11
DAC COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE................ 12
ADC ANALOG CHARACTERISTICS - COMMERCIAL GRADE............................................ 14
ADC ANALOG CHARACTERISTICS - AUTOMOTIVE GRADE ............................................ 15
ADC DIGITAL FILTER CHARACTERISTICS......................................................................... 16
DC ELECTRICAL CHARACTERISTICS ................................................................................ 17
DIGITAL CHARACTERISTICS............................................................................................... 17
SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT................................................. 18
SWITCHING CHARACTERISTICS - I²C MODE CONTROL PORT....................................... 21
SWITCHING CHARACTERISTICS - SPI CONTROL PORT ................................................. 22
4. TYPICAL CONNECTION DIAGRAM ..................................................................................... 23
5. APPLICATIONS ..................................................................................................................... 24
5.1 Stand-Alone Mode ........................................................................................................... 24
5.1.1 Recommended Power-Up Sequence ................................................................. 24
5.1.2 Master/Slave Mode ............................................................................................. 24
5.1.3 System Clocking ................................................................................................. 24
5.1.3.1 Crystal Applications (XTI/XTO) ........................................................... 24
5.1.3.2 Clock Ratio Selection .......................................................................... 25
5.1.4 16-Bit Auto-Dither ............................................................................................... 26
5.1.5 Auto-Mute ........................................................................................................... 26
5.1.6 High Pass Filter ................................................................................................... 26
5.1.7 Interpolation Filter .............................................................................................. 26
5.1.8 Mode Selection & De-Emphasis ......................................................................... 26
5.1.9 Serial Audio Interface Format Selection ............................................................. 26
5.2 Control Port Mode ........................................................................................................... 27
5.2.1 Recommended Power-Up Sequence - Access to Control Port Mode ................ 27
5.2.2 Master / Slave Mode Selection ........................................................................... 27
5.2.3 System Clocking ................................................................................................. 27
5.2.3.1 Crystal Applications (XTI/XTO) ........................................................... 27
5.2.3.2 Clock Ratio Selection .......................................................................... 28
5.2.4 Internal Digital Loopback .................................................................................... 30
5.2.5 Dither for 16-Bit Data .......................................................................................... 30
5.2.6 Auto-Mute ........................................................................................................... 30
5.2.7 High Pass Filter and DC Offset Calibration ......................................................... 30
5.2.8 Interpolation Filter .............................................................................................. 31
5.2.9 De-Emphasis ...................................................................................................... 31
5.2.10 Oversampling Modes ........................................................................................ 31
5.3 De-Emphasis Filter .......................................................................................................... 31
5.4 Analog Connections ........................................................................................................ 32
5.4.1 Input Connections ............................................................................................... 32
5.4.2 Output Connections ............................................................................................ 33
5.5 Mute Control .................................................................................................................... 34
5.6 Synchronization of Multiple Devices ................................................................................ 34
5.7 Grounding and Power Supply Decoupling ....................................................................... 34
6. CONTROL PORT INTERFACE .............................................................................................. 35
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