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CDB4365 Datasheet(Hoja de datos) 1 Page - Cirrus Logic

No. de Pieza. CDB4365
Descripción  114 dB, 192 kHz 6-Channel D/A Converter
Descarga  52 Pages
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Fabricante  CIRRUS [Cirrus Logic]
Página de inicio  http://www.cirrus.com
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Copyright
© Cirrus Logic, Inc. 2008
(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
Automatic Detection of Sample Rates up to
192 kHz
114 dB Dynamic Range
-100 dB THD+N
Direct Stream Digital Mode
Non-Decimating Volume Control
On-Chip 50 kHz Filter
Matched PCM and DSD Analog Output
Levels
Selectable Digital Filters
Volume Control with 1/2-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 and Serial Ports
Description
The CS4365 is a complete 6-channel digital-to-analog
system. This D/A system includes digital de-emphasis,
half-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 which 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 CS4365 also has a proprietary DSD processor
which allows for volume control and 50 kHz on-chip fil-
tering without an intermediate decimation stage. It also
offers an optional path for direct DSD conversion by di-
rectly using the multi-element switched capacitor array.
The CS4365 is available in a 48-pin LQFP package in
both Commercial (-40°C to +85°C) and Automotive
(-40°C to +105°C) grades. The CDB4365 Customer
Demonstration board is also available for device evalu-
ation and implementation suggestions. Please see
“Ordering Information” on page 51 for complete details.
The CS4365 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
receivers, digital TV’s, mixing consoles, effects proces-
sors, sound cards, and automotive audio systems.
Control Port Supply = 1.8 V to 5 V
Register/Hardware
Configuration
Internal Voltage
Reference
Reset
Digital Supply = 2.5 V
Hardware Mode or
I
2C/SPI Software Mode
Control Data
Analog Supply = 5 V
Six Channels of
Differential
Outputs
6
6
PCM Serial
Audio Input
Volume
Controls
Digital
Filters
Switch-Cap
DAC and
Analog Filters
Multi-bit
ΔΣ
Modulators
DSD Audio
Input
DSD Processor
-Volume control
-50 kHz filter
External Mute
Control
Mute Signals
6
6
Serial Audio Port
Supply = 1.8 V to 5 V
FEB '08
DS670F2
CS4365




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