CS5381
120 dB, 192 kHz, Multi-Bit Audio A/D Converter
Features
General Description
! Advanced Multi-bit Delta-Sigma Architecture
! 24-bit Conversion
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.
! 120 dB Dynamic Range
! -110 dB THD+N
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.
! Supports All Audio Sample Rates Including
192 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
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.
! Overflow Detection
! Pin-Compatible with the CS5361
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
5 V
Digital Supply
3.3 V to 5 V
Interface Supply
2.5 V to 5 V
Internal Voltage
Reference
Reset
Mode
Configuration
Switch-Cap
ADC
Digital
Filters
Differential
Inputs
HPF
OVFL
Differential
Inputs
Switch-Cap
ADC
Digital
Filters
PCM Serial
Audio Output
Copyright © Cirrus Logic, Inc. 2005
JULY '05
DS563F2
(All Rights Reserved)
http://www.cirrus.com