TS4657 PDF预览

TS4657

更新时间: 2025-07-14 05:52:31
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 驱动器
页数 文件大小 规格书
26页 1414K
描述
Single supply stereo digital audio line driver with 2.2 Vrms capless outputs

TS4657 数据手册

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TS4657  
Single supply stereo digital audio line driver  
with 2.2 Vrms capless outputs  
Features  
Single 3.0 to 5.5 V supply for DAC and line  
driver  
Audio line output: 2.2 Vrms for all V range  
CC  
16- to 24-bit audio data format stereo DAC, 32  
Pin connections (top view)  
to 48 kHz sample rate  
I²S, right- or left-justified compatible digital  
16  
20  
audio interface  
GNDD  
NC  
1
15  
GNDA  
VREGA  
VCCA  
95 dB SNR A-weighted at 48 kHz, V =5 V  
CC  
LRCLK  
SDAT  
BCLK  
7.4 mA current consumption at V = 3.0 V,  
CC  
VOUTL  
VOUTR  
full operation  
5
11  
6
10  
Internal negative power supply to ensure  
ground-referenced, capless outputs  
No external capacitor needed for the negative  
power supply generation  
Description  
Integrated structure to suppress pop and click  
noise  
The TS4657 is a stereo DAC that integrates a  
high-performance audio line driver capable of  
generating a 2.2 Vrms output level from a single  
3.0 to 5.5 V supply.  
Available in thin QFN20 4 mm x 4 mm package  
Applications  
One single supply is sufficient for the digital and  
analog parts of the circuit, thus eliminating the  
need for external regulators.  
Digital set-top boxes  
DVD players  
Digital TVs  
The TS4657 is a low-power consumption device.  
It features only 22 mW power dissipation at a  
3.0 V power supply in full operation.  
Notebooks  
Portable audio equipment  
Sound cards  
A 16-bit multi-bit sigma delta DAC is used,  
operating at 256xFs with oversampling digital  
interpolation filters. The digital audio data can be  
16-to 24-bit long and sample rates from 32 to  
48 kHz are supported.  
The output stage signal is ground-referenced by  
using an internal self-generated negative power  
supply, and as such external bulky output  
coupling capacitors are not necessary.  
The TS4657 is packaged in a small 4 x 4 mm  
QFN20 package, ideal for portable applications.  
March 2009  
Rev 1  
1/26  
www.st.com  
26  

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