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PCM1681

更新时间： 2024-10-29 04:54:03
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德州仪器 - TI 转换器
页数 文件大小 规格书
43页 1216K
描述
24-Bit, 192-kHz Sampling, Enhanced Multilevel Delta-Sigma, Eight-Channel Audio Digital-to-Analog Converter

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PCM1681 数据手册

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PCM1681  
PCM1681-Q1  
Burr-Brown Audio  
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  
1
FEATURES  
23456  
• 24-Bit Resolution  
•
Power Supply Voltage: +5-V Analog, +3.3-V  
Digital  
•
Analog Performance:  
•
•
Package: 28-Lead TSSOP PowerPAD™  
Operation Temperature Range:  
–
–
–
–
Dynamic Range: 105 dB Typical  
SNR: 105 dB Typical  
–
–
–40°C to +85°C for Consumer Grade  
THD+N: 0.002% Typical  
–40°C to +105°C for Automotive Audio  
Grade  
Full-Scale Output: 3.75 VPP Typical  
•
4×/8× Oversampling Interpolation Filter:  
–
–
Stop-Band Attenuation: –57 dB  
Pass-Band Ripple: ±0.015 dB  
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  
•
•
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  
Flexible Mode Control:  
–
SPI™/I2C™ Dual Mode for Serial Port  
–
Parallel Hardware Control with 4 Functions  
DESCRIPTION  
•
User-Programmable Functions (in SPI/I2C):  
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.  
–
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  
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.  
–
–
–
–
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  
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.  
2
3
4
5
6
PowerPAD is a trademark of Texas Instruments.  
System Two, Audio Precision are trademarks of Audio Precision, Inc.  
SPI is a trademark of Motorola.  
I2C, I2S are trademarks of NXP Semiconductors.  
All other trademarks are the property of their respective owners.  
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  
 
 
 
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