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PCM1740 PDF预览

PCM1740

更新时间: 2024-10-30 02:58:43
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
22页 202K
描述
DIGITAL-TO-ANALOG CONVERTER

PCM1740 数据手册

 浏览型号PCM1740的Datasheet PDF文件第2页浏览型号PCM1740的Datasheet PDF文件第3页浏览型号PCM1740的Datasheet PDF文件第4页浏览型号PCM1740的Datasheet PDF文件第5页浏览型号PCM1740的Datasheet PDF文件第6页浏览型号PCM1740的Datasheet PDF文件第7页 
®
PCM1740  
PCM1740  
For most current data sheet and other product  
information, visit www.burr-brown.com  
TM  
Stereo Audio  
DIGITAL-TO-ANALOG CONVERTER  
with VCXO and PLL  
FEATURES  
DESCRIPTION  
The PCM1740 is a complete stereo audio digital-to-analog  
converter with on-chip PLL and VCXO. The PCM1740 is  
designed specifically for set-top box applications requiring  
high-quality audio playback, a precision tuned 27MHz mas-  
ter clock source, and support for multiple audio-sampling  
frequencies.  
COMPLETE DELTA-SIGMA STEREO DAC  
VOLTAGE-CONTROLLED CRYSTAL  
OSCILLATOR: 27MHz ±150ppm Output with  
0V to 3V Input  
PROGRAMMABLE PLL  
256fS or 384fS Audio System Clock Output  
The stereo D/A converter utilizes multi-bit, delta-sigma  
architecture, which includes an 8x interpolation filter, third-  
order noise shaping, 5-level amplitude quantization, and an  
analog low-pass filter. The PCM1740 includes a number of  
user-programmable functions, which are accessed via a  
standard I2C-Bus interface.  
DYNAMIC PERFORMANCE:  
Dynamic Range: 94dB  
SNR: 94dB  
THD+N: 89dB  
SAMPLING FREQUENCIES:  
16kHz, 22.05kHz, 24kHz  
32kHz, 44.1kHz, 48kHz  
64kHz, 88.2kHz, 96kHz  
APPLICATIONS  
SET-TOP BOXES  
SERIAL AUDIO INTERFACE:  
Standard or I2S Data Formats  
16-, 20-, or 24-Bit Data  
DIGITAL BROADCAST RECEIVERS  
I2C-BUS¨ INTERFACE FOR CONTROL  
REGISTERS(1):  
Slave Receiver Operation  
7-Bit Addressing  
Standard Transfer Rate (up to 100kbps)  
PROGRAMMABLE CONTROLS:  
Digital Attenuation (256 steps)  
Soft Mute  
DAC  
(L)  
BCK  
LRCK  
DATA  
8x  
V
OUTL  
PCM  
Audio  
I/F  
Oversampling  
Digital Filter  
and  
Low-Pass  
Filter  
and Amp  
VCOM  
Sub-Functions  
Process  
DAC  
(R)  
V
OUTR  
SCL  
SDA  
AD1  
AD0  
I2C  
I/F  
and  
ZERO  
REGs  
SCKO  
Infinite Zero Detect Mute  
De-Emphasis (32kHz, 44.1kHz, 48kHz)  
DAC Output Mode  
Counter N  
Counter M  
(256fS/384fS  
)
XTUN  
Phase  
Detector  
LPF  
VCO  
XT1  
27MHz  
Crystal  
MCKO  
(27MHz)  
VCXO  
XT2  
RST  
SINGLE +5V SUPPLY  
Reset  
Power Supply  
SMALL SSOP-24 PACKAGE  
VPP PGND VCC AGND VDD DGND  
NOTE: (1) I2C-Bus¨ is a registered trademark of Philips Semiconductor.  
International Airport Industrial Park ¥ Mailing Address: PO Box 11400, Tucson, AZ 85734 ¥ Street Address: 6730 S. Tucson Blvd.,Tucson, AZ 85706 ¥ Tel: (520) 746-1111  
Twx: 910-952-1111 ¥ Internet: http://www.burr-brown.com/ ¥ Cable: BBRCORP ¥ Telex: 066-6491 ¥ FAX: (520) 889-1510 ¥ ImmediaterPoduct Info: (800) 548-6132  
© 2000 Burr-Brown Corporation  
Printed in U.S.A. February, 2000--Revised August 2001  
PDS-1551A  
SBAS128A  

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