24-Bit, 192kHz Sampling, 8-Channel,

Enhanced Multilevel, Delta-Sigma

DIGITAL-TO-ANALOG CONVERTER

PCM1608

DESCRIPTION

The PCM1608 is a CMOS monolithic integrated circuit that

features eight 24-bit audio Digital-to-Analog Converters

(DACs) and support circuitry in a small LQFP-48 package. The

DACs utilize Texas Instrument’s enhanced multi-level, delta-

sigma architecture that employs fourth-order noise shaping and

8-level amplitude quantization to achieve excellent signal-to-

noise performance and a high tolerance to clock jitter.

The PCM1608 accepts industry-standard audio data formats

with 16- to 24-bit audio data. Sampling rates up to 200kHz

(channels 1, 2, 7, and 8) or 100kHz (channels 3, 4, 5, and 6)

are supported. A full set of user-programmable functions are

accessible through a 4-wire serial control port that supports

register write and read functions.

FEATURES

q 24-BIT RESOLUTION

q ANALOG PERFORMANCE:

Dynamic Range: 100dB typ (PCM1608Y)

105dB typ (PCM1608KY)

SNR: 100dB typ (PCM1608Y)

105dB typ (PCM1608KY)

THD+N: 0.003% typ (PCM1608Y)

0.002% typ (PCM1608KY)

Full-Scale Output: 3.1Vp-p typ

q 4x/8x OVERSAMPLING INTERPOLATION FILTER:

Stopband Attenuation: –55dB

Passband Ripple:

q SAMPLING FREQUENCY:

5kHz to 200kHz (Channels 1, 2, 7, and 8)

5kHz to 100kHz (Channels 3, 4, 5, and 6)

q ACCEPTS 16-, 18-, 20-, AND 24-BIT AUDIO DATA

q SYSTEM CLOCK: 128, 192, 256, 384, 512, or 768f

S

q USER-PROGRAMMABLE FUNCTIONS:

Digital Attenuation: 0dB to –63dB, 0.5dB/Step

Soft Mute

Zero

Flags

May

Be

Used

As

General-

Purpose Logic Output

Digital De-Emphasis

Digital Filter Roll-Off: Sharp or Slow

q DUAL-SUPPLY OPERATION:

+5V Analog, +3.3V Digital

q +5V TOLERANT DIGITAL LOGIC INPUTS

q PACKAGE: LQFP-48

APPLICATIONS

q INTEGRATED A/V RECEIVERS

q DVD MOVIE AND AUDIO PLAYERS

q HDTV RECEIVERS

q CAR AUDIO SYSTEMS

q DVD ADD-ON CARDS FOR HIGH-END PCs

q DIGITAL AUDIO WORKSTATIONS

q OTHER MULTICHANNEL AUDIO SYSTEMS

PCM1608

www.ti.com

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Copyright © 2000, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

SBAS164A – MARCH 2001