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CDB4382A PDF даташит

Спецификация CDB4382A изготовлена ​​​​«Cirrus Logic» и имеет функцию, называемую «192 kHz 8-Channel D/A Converter».

Детали детали

Номер произв CDB4382A
Описание 192 kHz 8-Channel D/A Converter
Производители Cirrus Logic
логотип Cirrus Logic логотип 

47 Pages
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CDB4382A Даташит, Описание, Даташиты
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CS4382A
114 dB, 192 kHz 8-Channel D/A Converter
Features
! Advanced Multi-bit Delta Sigma Architecture
! 24-bit Conversion
! Up to 192 kHz Sample Rates
! 114 dB Dynamic Range
! -100 dB THD+N
! Direct Stream Digital Mode
! On-Chip 50 kHz Filter
! Matched PCM and DSD Analog Output Levels
! Selectable Digital Filters
! Volume Control with 1-dB Step Size and Soft
Ramp
! Low Clock-Jitter Sensitivity
! +5 V Analog Supply, +2.5 V Digital Supply
! Separate 1.8 to 5 V Logic Supplies for the
Control & Serial Ports
Description
The CS4382A is a complete 8-channel digital-to-analog
system. This D/A system includes digital de-emphasis,
one-dB step size volume control, ATAPI channel mix-
ing, selectable fast and slow digital interpolation filters
followed by an oversampled, multi-bit delta sigma mod-
ulator whitch includes mismatch shaping technology
that eliminates distortion due to capacitor mismatch.
Following this stage is a multi-element switched capac-
itor stage and low-pass filter with differential analog
outputs.
The CS4382A also has a proprietary DSD processor
which allows for 50 kHz on-chip filtering without an in-
termediate decimation stage. The CS4382A is available
in a 48-pin LQFP package in both Commercial (-10° to
+70°C) and Automotive grades (-40° to +85°C). The
CDB4382A Customer Demonstration board is also
available for device evaluation and implementation sug-
gestions. Please see “Ordering Information” on page 47
for complete details.
The CS4382A accepts PCM data at sample rates from
4 kHz to 216 kHz, DSD audio data, and delivers excel-
lent sound quality. These features are ideal for multi-
channel audio systems including SACD players, A/V re-
ceivers, digital TV’s, mixing consoles, effects
processors, sound cards and automotive audio
systems.
Control & Serial Audio Port
Supplies = 1.8 V to 5 V
Digital Supply = 2.5 V
Hardware Mode or
I2C/SPI Software Mode
Control Data
Reset
Register/Hardware
Configuration
Analog Supply = 5 V
Internal Voltage
Reference
PCM Serial
Audio Input
DSD Audio
Input
Volume
8 Controls
Digital
Filters
Multi-bit ∆Σ
Modulators
DSD Processor
-50 kHz filter
Switch-Cap
DAC and
Analog Filters
8 Differential
Outputs
8
External Mute
Control
2
Mute Signals
Preliminary Product Information
http://www.cirrus.com
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright © Cirrus Logic, Inc. 2005
(All Rights Reserved)
NOVEMBER '05
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TABLE OF CONTENTS
1. PIN DESCRIPTION ................................................................................................................................. 6
2. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 8
3. TYPICAL CONNECTION DIAGRAM
.............................................................................. 18
4. APPLICATIONS ................................................................................................................................... 20
4.1 Master Clock ................................................................................................................................... 20
4.2 Mode Select .................................................................................................................................... 20
4.3 Digital Interface Formats ................................................................................................................ 22
4.4 Oversampling Modes ...................................................................................................................... 23
4.5 Interpolation Filter ........................................................................................................................... 23
4.6 De-Emphasis .................................................................................................................................. 23
4.7 ATAPI Specification ........................................................................................................................ 24
4.8 Direct Stream Digital (DSD) Mode .................................................................................................. 25
4.9 Grounding and Power Supply Arrangements ................................................................................. 25
4.9.1 Capacitor Placement ............................................................................................................. 25
4.10 Analog Output and Filtering .......................................................................................................... 25
4.11 Mute Control ................................................................................................................................. 26
4.12 Recommended Power-Up Sequence ........................................................................................... 27
4.12.1 Hardware Mode ................................................................................................................... 27
4.12.2 Software Mode .................................................................................................................... 27
4.13 Recommended Procedure for Switching Operational Modes ....................................................... 27
4.14 Control Port Interface ................................................................................................................... 27
4.14.1 MAP Auto Increment ........................................................................................................... 28
4.14.2 I²C Mode .............................................................................................................................. 28
4.14.2.1 I²C Write ................................................................................................................... 28
4.14.2.2 I²C Read .................................................................................................................. 28
4.14.3 SPI™ Mode ......................................................................................................................... 29
4.14.3.1 SPI Write .................................................................................................................. 29
4.15 Memory Address Pointer (MAP) ............................................................................................. 30
4.16 INCR (Auto Map Increment Enable) ............................................................................................. 30
4.16.1 MAP4-0 (Memory Address Pointer) .................................................................................... 30
5. REGISTER QUICK REFERENCE ........................................................................................................ 31
6. REGISTER DESCRIPTION .................................................................................................................. 32
6.1 Mode Control 1 (address 01h) ........................................................................................................ 32
6.1.1 Control Port Enable (CPEN) .................................................................................................. 32
6.1.2 Freeze Controls (Freeze) ...................................................................................................... 32
6.1.3 Master Clock DIVIDE ENABLE (mclkdiv) .............................................................................. 32
6.1.4 DAC Pair Disable (DACx_DIS) .............................................................................................. 32
6.1.5 Power Down (PDN) ............................................................................................................... 33
6.2 Mode Control 2 (address 02h) ....................................................................................................... 33
6.2.1 Digital Interface Format (dif) .................................................................................................. 33
6.2.2 Mode Control 3 (address 03h) .............................................................................................. 34
6.2.3 Soft Ramp and Zero Cross CONTROL (SZC) ...................................................................... 34
6.2.4 Single Volume Control (Snglvol) ........................................................................................... 34
6.2.5 Soft Volume Ramp-Up after Error (RMP_UP) ....................................................................... 35
6.2.6 MUTEC Polarity (MUTEC+/-) ................................................................................................ 35
6.2.7 Auto-Mute (AMUTE) ............................................................................................................. 35
6.3 Mutec Pin Control (MUTEC) ........................................................................................................... 35
6.4 Filter Control (address 04h) ........................................................................................................... 36
6.4.1 Interpolation Filter Select (FILT_SEL) ................................................................................... 36
6.4.2 De-Emphasis Control (DEM) ................................................................................................. 36
6.4.3 Soft Ramp-Down before Filter Mode Change (RMP_DN) ..................................................... 36
6.5 Invert Control (address 05h) .......................................................................................................... 37
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6.5.1 Invert Signal Polarity (Inv_Xx) ............................................................................................... 37
6.6 Mixing Control Pair 1 (Channels A1 & B1)(address 06h)
Mixing Control Pair 2 (Channels A2 & B2)(address 09h)
Mixing Control Pair 3 (Channels A3 & B3)(address 0Ch)
Mixing Control Pair 4 (Channels A4 & B4)(address 0Fh) ..................................................................... 37
6.6.1 Channel A Volume = Channel B Volume (A=B) .................................................................... 37
6.6.2 ATAPI Channel Mixing and Muting (ATAPI) .......................................................................... 37
6.6.3 Functional Mode (FM) ........................................................................................................... 38
6.7 Volume Control (addresses 07h, 08h, 0Ah, 0Bh, 0Dh, 0Eh) ........................................................ 39
6.7.1 Mute (MUTE) ......................................................................................................................... 39
6.7.2 Volume Control (xx_VOL) ..................................................................................................... 39
6.8 Chip Revision (address 12h) ......................................................................................................... 40
6.8.1 Part Number ID (part) [Read Only] ........................................................................................ 40
7. FILTER PLOTS ..................................................................................................................................... 41
8. PARAMETER DEFINITIONS ................................................................................................................ 45
9. PACKAGE DIMENSIONS .................................................................................................................... 46
10. ORDERING INFORMATION .............................................................................................................. 47
11. REFERENCES .................................................................................................................................... 47
12. REVISION HISTORY ......................................................................................................................... 47
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Номер в каталогеОписаниеПроизводители
CDB4382192 kHz 8-Channel D/A ConverterCirrus Logic
Cirrus Logic
CDB4382A192 kHz 8-Channel D/A ConverterCirrus Logic
Cirrus Logic

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