PCM1681PWPR Datasheet, PDF (1/43 Pages) Texas Instruments – 24-Bit, 192-kHz Sampling, Enhanced Multilevel Delta-Sigma, Eight-Channel Audio Digital-to-Analog Converter

Burr-Brown Audio
PCM1681
PCM1681-Q1
www.ti.com.................................................................................................................................................... SLES211B – FEBRUARY 2008 – REVISED JUNE 2008
24-Bit, 192-kHz Sampling, Enhanced Multilevel Delta-Sigma,
Eight-Channel Audio Digital-to-Analog Converter
FEATURES
1
•23456 24-Bit Resolution
• Analog Performance:
– Dynamic Range: 105 dB Typical
– SNR: 105 dB Typical
– THD+N: 0.002% Typical
– Full-Scale Output: 3.75 V_PP Typical
• 4×/8× Oversampling Interpolation Filter:
– Stop-Band Attenuation: –57 dB
– Pass-Band Ripple: ±0.015 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
• Flexible Mode Control:
– SPI™/I²C™ Dual Mode for Serial Port
– Parallel Hardware Control with 4 Functions
• User-Programmable Functions (in SPI/I²C):
– Flexible Audio Data Formats:
– Right-Justified, I²S™, Left-Justified,
TDM, DSP
– 16- 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
– Oversampling Mode
• User-Programmable Functions (in H/W):
– Flexible Audio Data Formats:
– Right-Justified, I²S, Left-Justified, TDM
– Soft Mute
– Digital De-Emphasis
– Oversampling Mode
• Power Supply Voltage: +5-V Analog, +3.3-V
Digital
• Package: 28-Lead TSSOP PowerPAD™
• Operation Temperature Range:
– –40°C to +85°C for Consumer Grade
– –40°C to +105°C for Automotive Audio
Grade
APPLICATIONS
• Car Audio External Amplifiers
• Car Audio AVN Applications
• Integrated A/V Receivers
• DVD Movie and Audio Players
• HDTV Receivers
• DVD Add-On Cards for High-End PCs
• Digital Audio Workstations
• Other Multichannel Audio Systems
DESCRIPTION
The PCM1681 and PCM1681-Q1 are CMOS
monolithic integrated circuits which feature an
eight-channel 24-bit audio digital-to-analog converter
(DAC) and support circuitry in small 28-lead TSSOP
PowerPAD packages. The DACs utilize Burr-Brown's
enhanced multilevel delta-sigma (ΔΣ) architecture to
achieve excellent signal-to-noise performance and a
high tolerance to clock jitter.
The PCM1681 and PCM1681-Q1 accept TDM
(time-division multiplexed) format in addition to
industry-standard audio data formats with 16- to
24-bit audio data width. Sampling rates up to 200 kHz
are supported. The PCM1681 and PCM1681-Q1
provide a sub-set of user-programmable functions
through a parallel control port, in addition to a full set
of user-programmable functions through a serial
control port, SPI, or I²C. The PCM1681 supports
–40°C to +85°C for consumer grade applications and
the PCM1681-Q1 supports –40°C to +105°C for
automotive audio grade systems.
1
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.
PowerPAD is a trademark of Texas Instruments.
2
System Two, Audio Precision are trademarks of Audio Precision, Inc.
3
SPI is a trademark of Motorola.
4
I2C, I2S are trademarks of NXP Semiconductors.
5
All other trademarks are the property of their respective owners.
6
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 © 2008, Texas Instruments Incorporated