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FEATURES

· 24-Bit Resolution

· Analog Performance (VCC = 5 V):

– Dynamic Range: 106 dB

– SNR: 106 dB, Typical

– THD+N: 0.002%, Typical

– Full-Scale Output: 3.9 Vp-p, Typical

· 4×/8× Oversampling Digital Filter:

– Stop-Band Attenuation: –50 dB

– Pass-Band Ripple: ±0.04 dB

· Sampling Frequency: 5 kHz to 200 kHz

· System Clock: 128 fS, 192 fS, 256 fS, 384 fS,

512 f S, 768 fS, 1152 fS With Autodetect

· Software Control (PCM1780, PCM1782):

– Accepts 16-, 18-, 20-, and 24-Bit Audio Data

– Formats: Right-Justified, I2S, and

Left-Justified

– Digital Attenuation: Mode Selectable

· 0 dB to –63 dB, 0.5 dB/step

· 0 dB to –100 dB, 1 dB/step

– Digital De-Emphasis

– Digital Filter Rolloff: Sharp or Slow

– Soft Mute

– Zero Flags for Each Output

– Open-Drain Output Zero Flag (PCM1782)

· Hardware Control (PCM1781):

– I2S and 16-Bit Word, Right-Justified

– Digital De-Emphasis

– Soft Mute

– Zero Flag for L-, R-Channel Common

Output

· Power Supply: 5-V Single Supply

· Small, 16-Lead SSOP Package (150 mil)

· Pin-Compatible with PCM1680

APPLICATIONS

· A/V Receivers

· DVD Movie Players

· DVD Add-On Cards For High-End PCs

· DVD Audio Players

· HDTV Receivers

· Car Audio Systems

· Other Applications Requiring 24-Bit Audio

DESCRIPTION

The PCM1780/81/82 is a CMOS, monolithic,

integrated circuit, which includes stereo

digital-to-analog converters and support circuitry in a

small 16-lead SSOP package. The data converters

use TI’s enhanced multilevel delta-sigma architecture

to achieve excellent dynamic performance and

improved tolerance to clock jitter. The

PCM1780/81/82 accepts industry standard audio

data formats with 16- to 24-bit data, providing easy

interfacing to audio DSP and decoder chips.

Sampling rates up to 200 kHz are supported. The

PCM1780/82 provides a full set of

user-programmable functions through a three-wire

serial control port, which supports register write functions. The PCM1781 provides a subset of

user-programmable functions through four control

pins.

The PCM1780 is pin-compatible with the PCM1680

(8-channel DAC).