1FEATURES

23· 24-Bit Resolution

· Analog Performance

– Dynamic Range: 105 dB Typical

– SNR: 105 dB Typical

– THD+N: 0.002% Typical

– Full-Scale Output: 3.1 Vp-p, Typical

· 4´/8´ Oversampling Interpolation Filter

– Stop-Band Attenuation: –55 dB

– Pass-Band Ripple: ±0.03 dB

· Sampling Frequency: 5 kHz to 200 kHz

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

· Data Formats: Standard, I2S, and Left-Justified

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

512 fS, or 768 fS

· User-Programmable Functions

– Digital Attenuation: 0 dB to –63 dB,

0.5 dB/Step

– Soft Mute

– Zero Flags Can Be Used as

General-Purpose Logic Output

– Digital De-Emphasis

– Digital Filter Rolloff: Sharp or Slow

· Dual-Supply Operation

– 5-V Analog

– 3.3-V Digital

· 5-V Tolerant Digital Logic Inputs

· Package: LQFP-48

APPLICATIONS

· Integrated A/V Receivers

· DVD Movie and Audio Players

· HDTV Receivers

· Car Audio Systems

· DVD Add-On Cards for High-End PCs

· Digital Audio Workstations

· Other Multichannel Audio Systems

DESCRIPTION

The PCM1609A 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 use Texas Instruments (TI) enhanced multilevel 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 PCM1609A accepts industry-standard audio data

formats with 16- to 24-bit audio data. Sampling rates

up to 200 kHz are supported. A full set of

user-programmable functions is accessible through a

4-wire serial control port that supports register write

and read functions.