CS5345-DQZR Cirrus Logic Inc, CS5345-DQZR Datasheet

CS5345-DQZR

Manufacturer Part Number

CS5345-DQZR

Description

IC,Data Acquisition Signal Conditioner,6-CHANNEL,24-BIT,CMOS,QFP,48PIN,PLASTIC

Manufacturer

Cirrus Logic Inc

Datasheets

1.CS5345-DQZR.pdf (41 pages)

2.CS5345-DQZR.pdf (41 pages)

Current page: 1 of 41
Download datasheet (836Kb)

A/D Features

System Features

Control Data

Multi-Bit Delta Sigma Modulator

104 dB Dynamic Range

-95 dB THD+N

Stereo 6:1 Input Multiplexer

Programmable Gain Amplifier (PGA)

Stereo Microphone Inputs

Up to 192 kHz Sampling Rates

Selectable Serial Audio Interface Formats

High-Pass Filter or DC Offset Calibration

Power-Down Mode

+3.3 V to +5 V Analog Power Supply, Nominal

+3.3 V to +5 V Digital Power Supply, Nominal

Direct Interface with 1.8 V to 5 V Logic Levels

Pin-Compatible with CS4245

Overflow

–

Interrupt

http://www.cirrus.com

I²C/SPI

Output

Reset

Serial

Audio

± 12 dB Gain, 0.5 dB Step Size

Zero Crossing, Click-Free Transitions

+32 dB Gain Stage

Low-Noise Bias Supply

Left-Justified up to 24-bit

I²S up to 24-bit

1.8 V to 5 V

104 dB, 24-Bit, 192 kHz Stereo Audio ADC

High Pass

Filter

3.3 V to 5 V

Anti-Alias Filter

Low-Latency

General Description

The CS5345 integrates an analog multiplexer, program-

mable gain amplifier, and stereo audio analog-to-digital

converter. The CS5345 performs stereo analog-to-digi-

tal (A/D) conversion of up to 24-bit serial values at

sample rates up to 192 kHz.

A 6:1 stereo input multiplexer is included for selecting

between line-level and microphone-level inputs. The

microphone input path includes a +32 dB gain stage

and a low-noise bias voltage supply. The PGA is avail-

able for line or microphone inputs and provides

gain/attenuation of ± 12 dB in 0.5 dB steps.

The output of the PGA is followed by an advanced 5th-

order, multi-bit delta sigma modulator and digital filter-

ing/decimation. Sampled data is transmitted by the

serial audio interface at rates from 4 kHz to 192 kHz in

either Slave or Master Mode.

Integrated level translators allow easy interfacing be-

tween the CS5345 and other devices operating over a

wide range of logic levels.

The CS5345 is available in a 48-pin LQFP package in

Commercial (-10° to +70° C) and Automotive (-40° to

+105° C) grade. The CDB5345 Customer Demonstra-

tion board is also available for device evaluation and

implementation suggestions. Please refer to

Information” on page 41

Internal Voltage

Oversampling

Reference

Multibit

ADC

3.3 V to 5 V

PGA

MUX

for complete details.

+32 dB

CS5345

Left PGA Output

Right PGA Output

Stereo Input 1

Stereo Input 2

Stereo Input 3

Stereo Input 4 /

Mic Input 1 & 2

Stereo Input 5

Stereo Input 6

AUGUST '07

“Ordering

DS658F2

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