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AL1201

Stereo DAC

Unspecified 

We make the parts that set creative people free™

General Description

The AL1201 stereo DAC is a high

performance 24-bit digital to analog audio

converter. Dynamic range is 107dB (A-

weighted). The sensible pinout and easy

user interface are unprecedented. The part

contains an internal high quality phase-

locked loop that eliminates the need for

external high frequency clocks.

Features

G 24 bit conversion

G 107dB dynamic range (A-wt)

G .003% THD at full scale output

G linear phase analog outputs

G 128x over sampling, 5th order 1 bit ∆-Σ

modulator

G 2nd order switched cap filter and 2nd

order continuous-time filter on chip

G sample rate variable 24kHz-55kHz

G selectable deemphasis (15us/50µs at

Fs=44.1kHz)

G total power consumption 170mW

(Fs=48kHz)

G internal PLL derives all necessary timing

signals from external Fs clock

G serial input bit-rate, selectable 32/24

bits/frame

G full scale differential output = +/-4V

([OUT+]-[OUT-])

G 5V operation

OUTL-

OUTR-

OUTL+

OUTR+

AGND

MID

REF+

VA

REF-

AGND

VD

DGND

DIN

DEM

FORMAT

WDCLK

16 pin SOIC

150 mils wide

Alesis Semiconductor

DS1201-0702

12555 Jefferson Blvd., Suite 285

Los Angeles, CA 90066

Phone (310) 301-0780 Fax (310) 306-1551 www.alesis-semi.com

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