CDB4391 datasheet(1/40 Pages) CIRRUS

No de pièce	CDB4391

Description	24-Bit, 192 kHz Stereo DAC with Volume Control?

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Fabricant	CIRRUS [Cirrus Logic]

Site Internet	http://www.cirrus.com

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Preliminary Product Information

This document contains information for a new product.

Cirrus Logic reserves the right to modify this product without notice.

1

Copyright

P.O. Box 17847, Austin, Texas 78760

(512) 445 7222 FAX: (512) 445 7581

http://www.cirrus.com

CS4391

24-Bit, 192 kHz Stereo DAC with Volume Control

Features

l Complete Stereo DAC System: Interpolation,

D/A, Output Analog Filtering

l 108 dB Dynamic Range

l 94 dB THD+N

l Direct Stream Digital Mode

l Low Clock Jitter Sensitivity

l +5 V to +3 V Power Supply

l ATAPI Mixing

l On-Chip Digital De-emphasis for 32, 44.1,

and 48 kHz

l Volume Control with Soft Ramp

– 119 dB Attenuation

– 1 dB Step Size

– Zero Crossing Click-Free Transitions

l 36 mW with 3 V supply

l Direct Interface with 5 V to 1.8 V Logic

Description

The CS4391 is a complete stereo digital-to-analog sys-

tem including digital interpolation, fourth-order delta-

sigma digital-to-analog conversion, digital de-emphasis,

volume control, channel mixing and analog filtering. The

advantages of this architecture include: ideal differential

linearity, no distortion mechanisms due to resistor

matching errors, no linearity drift over time and tempera-

ture and a high tolerance to clock jitter.

The CS4391 accepts PCM data at sample rates from

2 kHz to 192 kHz, DSD audio data, consumes very little

power and operates over a wide power supply range.

These features are ideal for DVD, A/V receivers, CD and

set-top box systems.

ORDERING INFORMATION

CS4391-KZ

20-pin TSSOP

-10 to 70 °C

CDB4391

Evaluation Board

I

LRCK

SDATA

(SDA/CDIN)

MCLK

AMUTEC

AOUTA-

AOUTB-

SERIAL

PORT

INTERPOLATION

INTERPOLATOR

(CONTROL PORT)

∆Σ

DAC

EXTERNAL

ANALOG

FILTER

ANALOG

FILTER

∆Σ

MUTE CONTROL

FILTER

RST

SCLK

VOLUME

CONTROL

VOLUME

CONTROL

MIXER

(SCL/CCLK)

(AD0/CS)

AOUTA+

AOUTB+

CMOUT

REFERENCE

FILT+

BMUTEC

M1

M3

M2

MODE SELECT

M0

APR ‘00

DS335PP3

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