CS5381-KSZ【PDF 1/16 页】IC ADC AUD 120DB 192KHZ 24-SOIC

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Cirrus Logic, Inc. 2005

http://www.cirrus.com

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

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

! 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.

Interface Supply

2.5 V to 5 V

Internal Voltage

Reference

Digital Supply

3.3 V to 5 V

Mode

Configuration

Analog Supply

5 V

Switch-Cap

ADC

Differential

Inputs

Digital

Filters

PCM Serial

Audio Output

Switch-Cap

ADC

Differential

Inputs

Digital

Filters

OVFL

HPF

Reset

JULY '05

DS563F2

CS5381

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