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Cirrus Logic

CS5381 Datasheet Preview

CS5381 Datasheet

Multi-Bit Audio A/D Converter

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CS5381
120 dB, 192 kHz, Multi-Bit Audio A/D Converter
Features
! Advanced Multi-bit Delta-Sigma Architecture
! 24-bit Conversion
! 120 dB Dynamic Range
! -110 dB THD+N
! Supports All Audio Sample Rates Including
www.DataSheet4U.1co9m2 kHz
! 260 mW Power Consumption
! High-Pass Filter or DC Offset Calibration
! Supports Logic Levels between 5 and 2.5 V
! Differential Analog Architecture
! Low-Latency Digital Filtering
! Overflow Detection
! Pin-Compatible with the CS5361
General Description
The CS5381 is a complete analog-to-digital converter
for digital audio systems. It performs sampling, analog-
to-digital conversion, and anti-alias filtering - generating
24-bit values for both left and right inputs in serial form
at sample rates up to 216 kHz per channel.
The CS5381 uses a 5th-order, multi-bit delta-sigma
modulator followed by digital filtering and decimation,
which removes the need for an external anti-alias filter.
The ADC uses a differential architecture which provides
excellent noise rejection.
The CS5381 is available in 24-pin TSSOP and SOIC
packages for Commercial grade (-10° to +70° C). The
CDB5381 Customer Demonstration board is also avail-
able for device evaluation and implementation
suggestions. Please refer to the “Ordering Information”
on page 22.
The CS5381 is ideal for audio systems requiring wide
dynamic range, negligible distortion, and low noise -
such as A/V receivers, DVD-R, CD-R, digital mixing
consoles, and effects processors.
Analog Supply
5V
Digital Supply
3.3 V to 5 V
Interface Supply
2.5 V to 5 V
Differential
Inputs
Differential
Inputs
Internal Voltage
Reference
Switch-Cap
ADC
Switch-Cap
ADC
Digital
Filters
Digital
Filters
Reset
Mode
Configuration
HPF
OVFL
PCM Serial
Audio Output
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2005
(All Rights Reserved)
JULY '05
DS563F2




Cirrus Logic

CS5381 Datasheet Preview

CS5381 Datasheet

Multi-Bit Audio A/D Converter

No Preview Available !

CS5381
TABLE OF CONTENTS
1. PIN DESCRIPTIONS ............................................................................................................................... 4
2. CHARACTERISTICS AND SPECIFICATIONS....................................................................................... 5
SPECIFIED OPERATING CONDITIONS .................................................................................................... 5
ABSOLUTE MAXIMUM RATINGS............................................................................................................... 5
ANALOG CHARACTERISTICS (CS5381-KSZ/-KZZ).................................................................................. 6
DIGITAL FILTER CHARACTERISTICS....................................................................................................... 7
SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT .................................................................... 10
DC ELECTRICAL CHARACTERISTICS.................................................................................................... 13
DIGITAL CHARACTERISTICS .................................................................................................................. 13
THERMAL CHARACTERISTICS .............................................................................................................. 13
TYPICAL CONNECTION DIAGRAM ......................................................................................................... 14
www.DataSheet4U.com 3. APPLICATIONS .................................................................................................................................... 15
3.1 Operational Mode/Sample Rate Range Select.............................................................................. 15
3.2 System Clocking ............................................................................................................................ 15
3.2.1 Master Mode ........................................................................................................................ 15
3.2.2 Slave Mode .......................................................................................................................... 16
3.3 Power-Up Sequence ..................................................................................................................... 16
3.4 Analog Connections ...................................................................................................................... 16
3.5 High-Pass Filter and DC Offset Calibration .................................................................................. 17
3.6 Overflow Detection ........................................................................................................................ 18
3.6.1 OVFL Configuration ............................................................................................................. 18
3.6.2 OVFL Output Timing ............................................................................................................ 18
3.7 Grounding and Power Supply Decoupling..................................................................................... 18
3.8 Synchronization of Multiple Devices .............................................................................................. 18
3.9 Capacitor Size on the Reference Pin (FILT+)................................................................................ 19
4. PACKAGE DIMENSIONS ..................................................................................................................... 20
5. ORDERING INFORMATION ................................................................................................................. 22
7. REVISION HISTORY ............................................................................................................................. 24
2 DS563F2


Part Number CS5381
Description Multi-Bit Audio A/D Converter
Maker Cirrus Logic
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CS5381 Datasheet PDF






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