1FEATURES
2345· 24-Bit Resolution
· Analog Performance:
– Dynamic Range: 105 dB Typical
– SNR: 105 dB Typical
– THD+N: 0.002% Typical
– Full-Scale Output: 3.9 V PP Typical
· 4x/8x Oversampling Interpolation Filter:
– Stop-Band Attenuation: –50 dB
– Passband Ripple: ±0.04 dB
· Sampling Frequency: 5 kHz to 200 kHz
· System Clock: 128 fS, 192 fS, 256 fS, 384 fS, 512
fS, 768 fS, or 1152 fS with Autodetect
· Zero Flags for Selectable Channel
Combinations
· Serial Port (SPI™/I2C™) for Mode Control
· User-Programmable Functions:
– Flexible Audio Data Formats
– Right-Justified, I2S™, and Left-Justified
– 16-, 18-, 20-, and 24-Bit Audio Data
– Digital Attenuation: Mode Selectable
– 0 dB to –63 dB, 0.5-dB/step
– 0 dB to –100 dB, 1-dB/step
– Soft Mute
– Digital De-Emphasis
– Digital Filter Roll-Off: Sharp or Slow
· Single Power-Supply Operation: 5-V Analog,
5-V Digital
· Package: SSOP-28 (150 mil)
· Pin-Compatible with PCM1780

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 PCM1680 is a CMOS, monolithic integrated
circuit which features eight 24-bit audio
digital-to-analog converters (DACs) and support
circuitry in a small SSOP-28. The DACs use TI's
enhanced multilevel delta-sigma (ΔΣ) architecture to achieve excellent signal-to-noise performance and a
high tolerance to clock jitter.
The PCM1680 accepts industry-standard audio data
formats with 16-bit to 24-bit audio data. Sampling
rates up to 200 kHz are supported. The PCM1680
provides a full set of user-programmable functions
through a serial control port, using an SPI or I2C
interface.