PCM1680_15 Datasheet, PDF (1/39 Pages) Texas Instruments – 24-Bit, 192-kHz Sampling, Enhanced Multilevel, Delta-Sigma, Audio Digital-to-Analog Converter

PCM1680
www.ti.com.................................................................................................................................................. SLES133B – MARCH 2005 – REVISED OCTOBER 2008
24-Bit, 192-kHz Sampling, Enhanced Multilevel, Delta-Sigma, Audio
Digital-to-Analog Converter
FEATURES
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•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 f_S, 192 f_S, 256 f_S, 384 f_S, 512
f_S, 768 f_S, or 1152 f_S 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.
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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.
System Two, Audio Precision are trademarks of Audio Precision, Inc.
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SPI is a trademark of Motorola.
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I2C, I2S are trademarks of NXP Semiconductors.
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All other trademarks are the property of their respective owners.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005–2008, Texas Instruments Incorporated