Cirrus Logic CS4362A - Manual

Copyright
© Cirrus Logic, Inc. 2009
(All Rights Reserved) http://www.cirrus.com
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
Register/Hardware
Configuration
Internal Voltage
Reference
Reset
S
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Digital Supply = 2.5 V
Hardware Mode or
I 2 C/SPI Software Mode
Control Data
Analog Supply = 5 V
Six Channels of
Differential
Outputs
PCM Serial
Audio Input
Volume
Controls
Digital
Filters
Switch-Cap
DAC and
Analog Filters
Multi-bit ∆Σ
Modulators
DSD Audio
Input
DSD Processor
-50 kHz filter
External Mute
Control Mute Signals
Serial Audio Port
Supply = 1.8 V to 5 V
6
6
6
6
CS4362A
JAN '09
DS617F2