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PCM1789-Q1 PDF预览

PCM1789-Q1

更新时间： 2024-10-29 11:58:19
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
41页 1078K
描述
24-Bit, 192-kHz Sampling, Enhanced Multi-Level ΔΣ, Stereo, Audio Digital-to-Analog Converter

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PCM1789-Q1 数据手册

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PCM1789-Q1  
Burr-Brown Audio  
www.ti.com  
SBAS546 –MARCH 2011  
24-Bit, 192-kHz Sampling, Enhanced Multi-Level ΔΣ,  
Stereo, Audio Digital-to-Analog Converter  
Check for Samples: PCM1789-Q1  
1
FEATURES  
–
–
Audio I/F Format Select: I2S, Left-Justified  
Digital De-Emphasis Filter: 44.1 kHz  
234  
•
Qualified for Automotive Applications  
Enhanced Multi-Level Delta-Sigma DAC:  
•
•
•
Analog Mute by Clock Halt Detection  
External Reset Pin  
•
–
–
–
–
–
–
High Performance: Differential, fS = 48 kHz  
THD+N: –94 dB  
Power Supplies:  
–
5 V for Analog and 3.3 V for Digital  
SNR: 113 dB  
•
•
Package: TSSOP-24  
Dynamic Range: 113 dB  
Sampling Rate: 8 kHz to 192 kHz  
Operating Temperature Range:  
–
–40°C to +105°C  
System Clock: 128 fS, 192 fS, 256 fS, 384 fS,  
512 fS, 768 fS, 1152 fS  
APPLICATIONS  
–
–
–
Differential Voltage Output: 8 VPP  
Analog Low-Pass Filter Included  
4x/8x Oversampling Digital Filter:  
•
•
•
AV Receivers  
Car Audio External Amplifiers  
Car Audio AVN Applications  
–
–
Passband Ripple: ±0.0018 dB  
Stop Band Attenuation: –75 dB  
DESCRIPTION  
–
Zero Flags (16-/20-/24-Bits)  
The PCM1789-Q1 is a high-performance, single-chip,  
24-bit, stereo, audio digital-to-analog converter (DAC)  
with differential outputs. The two-channel, 24-bit DAC  
employs an enhanced multi-level, delta-sigma (ΔΣ)  
modulator, and supports 8 kHz to 192 kHz sampling  
rates and a 16-/20-/24-/32-bit width digital audio input  
word on the audio interface. The audio interface of  
PCM1789-Q1 supports a 24-bit, DSP format in  
addition to I2S, left-justified, and right-justified  
formats.  
•
•
Flexible Audio Interface:  
–
–
I/F Format: I2S™, Left-/Right-Justified, DSP  
Data Length: 16, 20, 24, 32 Bits  
Flexible Mode Control:  
–
3-Wire SPI™, 2-Wire I2C™-Compatible  
Serial Control Interface, or  
Hardware Control  
–
Connect Up To 4 Devices on One SPI Bus  
The PCM1789-Q1 can be controlled through a  
•
Multi Functions via SPI or I2C I/F:  
three-wire,  
SPI-compatible  
or  
two-wire,  
Audio I/F Format Select: I2S, Left-Justified,  
Right-Justified, DSP  
I2C-compatible serial interface in software, which  
provides access to all functions including digital  
attenuation, soft mute, de-emphasis, and so forth.  
Also, hardware control mode provides two  
user-programmable functions through two control  
pins. The PCM1789-Q1 is available in a 24-pin  
TSSOP package.  
–
–
–
Digital Attenuation and Soft Mute  
Digital De-Emphasis: 32 kHz, 44.1 kHz,  
48 kHz  
–
–
Data Polarity Control  
Power-Save Mode  
•
Multi Functions via Hardware Control:  
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
SPI is a trademark of Motorola, Inc.  
I2S, I2C 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 © 2011, Texas Instruments Incorporated  
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