PCM1770

PCM1771

SLES011C – SEPTEMBER 2001 – REVISED MAY 2004

LOW VOLTAGE AND LOW POWER STEREO AUDIO

DIGITALTOANALOG CONVERTER WITH HEADPHONE AMPLIFIER

FEATURES

Amplifier

− Dynamic Range: 98 dB Typ

− THD+N at 0 dB: 0.1% Typ

− THD+N at −20 dB: 0.04% Typ

(Stereo), 26 mW (Monaural)

− 16-, 20-, 24-Bit Word Available

− Slave/Master Selectable

− Digital Attenuation: 0 dB to –62 dB,

1 dB/Step

− 44.1-kHz Digital De-Emphasis

− Zero Cross Attenuation

− Digital Soft Mute

− Monaural Analog-In With Mixing

− Monaural Speaker Mode

− 44.1-kHz Digital De-Emphasis

− Monaural Analog-In With Mixing

APPLICATIONS

Operation

DESCRIPTION

The PCM1770 and PCM1771 devices are CMOS,

monolithic, integrated circuits which include stereo

digital-to-analog converters, headphone circuitry, and

support circuitry in small TSSOP-16 and VQFN-20

packages.

The data converters use TI’s enhanced multilevel

∆-Σ

architecture, which employs noise shaping and

multilevel amplitude quantization to achieve excellent

dynamic performance and improved tolerance to clock

jitter. The PCM1770 and PCM1771 devices accept

several industry standard audio data formats with 16- to

interfacing to audio DSP and decoder devices.

Sampling rates up to 50 kHz are supported. A full set of

user-programmable functions are accessible through a

3-wire serial control port, which supports register write

functions.

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.

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.

BurrBrown Products

from Texas Instruments

Copyright

 2004, Texas Instruments Incorporated