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Cirrus Logic

CS4362A Datasheet Preview

CS4362A Datasheet

192 kHz 6-channel D/A Converter

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CS4362A
114 dB, 192 kHz 6-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® (DSD) 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 CS4362A is a complete 6-channel digital-to-analog
system. This D/A system includes digital de-emphasis,
1 dB step size volume control, ATAPI channel mixing,
selectable fast and slow digital interpolation filters fol-
lowed by an oversampled, multi-bit delta-sigma
modulator which includes mismatch shaping technolo-
gy 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 CS4362A also has a proprietary DSD processor
which allows for 50 kHz on-chip filtering without an in-
termediate decimation stage. The CS4362A is available
in a 48-pin LQFP package in both Commercial (-40°C to
+85°C) and Automotive grades (-40°C to +105°C). The
CDB4362A Customer Demonstration board is also
available for device evaluation and implementation sug-
gestions. Please see “Ordering Information” on page 48
for complete details.
The CS4362A 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 Port Supply = 1.8 V to 5 V
Digital Supply = 2.5 V
Analog Supply = 5 V
Hardware Mode or
I2C/SPI Software Mode
Control Data
Reset
Serial Audio Port
Supply = 1.8 V to 5 V
PCM Serial
Audio Input
Register/Hardware
Configuration
Internal Voltage
Reference
Volume
6 Controls
Digital
Filters
Multi-bit ∆Σ
Modulators
Switch-Cap
DAC and
Analog Filters
6 Six Channels of
Differential
Outputs
6
DSD Audio
Input
DSD Processor
-50 kHz filter
External Mute
Control
6
Mute Signals
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2009
(All Rights Reserved)
JAN '09
DS617F2




Cirrus Logic

CS4362A Datasheet Preview

CS4362A Datasheet

192 kHz 6-channel D/A Converter

No Preview Available !

CS4362A
TABLE OF CONTENTS
1. PIN DESCRIPTION ................................................................................................................................. 6
2. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 8
RECOMMENDED OPERATING CONDITIONS .................................................................................... 8
ABSOLUTE MAXIMUM RATINGS ........................................................................................................ 8
DAC ANALOG CHARACTERISTICS - COMMERCIAL (-CQZ) ............................................................. 9
DAC ANALOG CHARACTERISTICS - AUTOMOTIVE (-DQZ) ........................................................... 10
POWER AND THERMAL CHARACTERISTICS .................................................................................. 11
COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE ...................................... 12
COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE ...................................... 13
DSD COMBINED DIGITAL & ON-CHIP ANALOG FILTER RESPONSE ............................................ 13
DIGITAL CHARACTERISTICS ............................................................................................................ 14
SWITCHING CHARACTERISTICS - PCM .......................................................................................... 15
SWITCHING CHARACTERISTICS - DSD ........................................................................................... 16
SWITCHING CHARACTERISTICS - CONTROL PORT - I²C FORMAT ............................................. 17
SWITCHING CHARACTERISTICS - CONTROL PORT - SPI FORMAT ............................................ 18
3. TYPICAL CONNECTION DIAGRAM .................................................................................................. 19
4. APPLICATIONS ................................................................................................................................... 21
4.1 Master Clock .................................................................................................................................. 21
4.2 Mode Select ................................................................................................................................... 21
4.3 Digital Interface Formats ................................................................................................................ 23
4.4 Oversampling Modes ..................................................................................................................... 24
4.5 Interpolation Filter .......................................................................................................................... 24
4.6 De-emphasis .................................................................................................................................. 24
4.7 ATAPI Specification ....................................................................................................................... 25
4.8 Direct Stream Digital (DSD) Mode ................................................................................................. 26
4.9 Grounding and Power Supply Arrangements ................................................................................ 26
4.9.1 Capacitor Placement ............................................................................................................. 26
4.10 Analog Output and Filtering ......................................................................................................... 26
4.11 Mute Control ................................................................................................................................ 27
4.12 Recommended Power-Up Sequence .......................................................................................... 28
4.12.1 Hardware Mode ................................................................................................................... 28
4.12.2 Software Mode .................................................................................................................... 28
4.13 Recommended Procedure for Switching Operational Modes ...................................................... 29
4.14 Control Port Interface ................................................................................................................... 29
4.14.1 MAP Auto Increment ........................................................................................................... 29
4.14.2 I²C Mode .............................................................................................................................. 29
4.14.2.1 I²C Write ................................................................................................................... 29
4.14.2.2 I²C Read .................................................................................................................. 30
4.14.3 SPI Mode ............................................................................................................................. 30
4.14.3.1 SPI Write .................................................................................................................. 30
4.15 Memory Address Pointer (MAP) ................................................................................................. 31
4.16 INCR (Auto Map Increment Enable) ............................................................................................ 31
4.16.1 MAP4-0 (Memory Address Pointer) .................................................................................... 31
5. REGISTER QUICK REFERENCE ........................................................................................................ 32
6. REGISTER DESCRIPTION .................................................................................................................. 33
6.1 Mode Control 1 (Address 01h) ....................................................................................................... 33
6.1.1 Control Port Enable (CPEN) .................................................................................................. 33
6.1.2 Freeze Controls (FREEZE) ................................................................................................... 33
6.1.3 Master Clock Divide Enable (MCLKDIV) ............................................................................... 33
6.1.4 DAC Pair Disable (DACx_DIS) .............................................................................................. 33
6.1.5 Power Down (PDN) ............................................................................................................... 34
6.2 Mode Control 2 (Address 02h) ....................................................................................................... 34
2 DS617F2


Part Number CS4362A
Description 192 kHz 6-channel D/A Converter
Maker Cirrus Logic
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CS4362A Datasheet PDF





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