CS42418_05 Datasheet, PDF(1/73 Page) Cirrus Logic – 110 dB, 192 kHz 8-Ch Codec with PLL

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CS42418_05 Datasheet, PDF (1/73 Pages) Cirrus Logic – 110 dB, 192 kHz 8-Ch Codec with PLL

CS42418

110 dB, 192 kHz 8-Ch Codec with PLL

Features

! Eight 24-bit D/A, two 24-bit A/D Converters

! 110 dB DAC / 114 dB ADC Dynamic Range

! -100 dB THD+N

! System Sampling Rates up to 192 kHz

! Integrated Low-Jitter PLL for Increased System

Jitter Tolerance

! PLL Clock or System Clock Selection

! 7 Configurable General-Purpose Outputs

! ADC High-Pass Filter for DC Offset Calibration

! Expandable ADC Channels and One-Line

Mode Support

! Digital Output Volume Control with Soft Ramp

! Digital +/-15 dB Input Gain Adjust for ADC

! Differential Analog Architecture

! Supports Logic Levels between 1.8 V and 5 V

General Description

The CS42418 codec provides two analog-to-digital and

eight digital-to-analog delta-sigma converters, as well

as an integrated PLL.

The CS42418 integrated PLL provides a low-jitter sys-

tem clock. The internal stereo ADC is capable of

independent channel gain control for single-ended or

differential analog inputs. All eight channels of DAC pro-

vide digital volume control and differential analog

outputs. The general-purpose outputs may be driven

high or low, or mapped to a variety of DAC mute con-

trols or ADC overflow indicators.

The CS42418 is ideal for audio systems requiring wide

dynamic range, negligible distortion and low noise, such

as A/V receivers, DVD receivers, digital speaker and

automotive audio systems.

The CS42418 is available in a 64-pin LQFP package in

both Commercial (-10Â° to 70Â° C) and Automotive

(-40Â° to 85Â° C) grades. The CDB42428 Customer Dem-

onstration board is also available for device evaluation.

Refer to âOrdering Informationâ on page 71.

GPO1

GPO2

GPO3

GPO4

GPO5

GPO6

GPO7

MUTEC

AINL+

AINL-

AINR+

AINR-

AOUTA1+

AOUTA1-

AOUTB1+

AOUTB1-

AOUTA2+

AOUTA2-

AOUTB2+

AOUTB2-

AOUTA3+

AOUTA3-

AOUTB3+

AOUTB3-

AOUTA4+

AOUTA4-

AOUTB4+

AOUTB4-

VA AGND

GPO

ADC#1

ADC#2

REFGND VQ FILT+ OMCK

RMCK LPFLT VLC DGND VD

Mute

Internal Voltage

Reference

Mult/Div

PLL

Control

Port

INT

RST

AD0/CS

AD1/CDIN

SDA/CDOUT

SCL/CCLK

Digital Filter

DAC#1

DAC#2

DAC#3

DAC#4

DAC#5

DAC#6

DAC#7

DAC#8

Gain & Clip

ADC

Serial

Audio

Port

ADCIN1

ADCIN2

ADC_SDOUT

ADC_LRCK

ADC_SCLK

VLS

DAC_LRCK

DAC_SCLK

DAC_SDIN1

DAC_SDIN2

DAC_SDIN3

DAC_SDIN4

http://www.cirrus.com

NOVEMBER '05

DS603F1

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