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.