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DRV612RGT

更新时间： 2024-09-28 09:55:39
品牌 Logo 应用领域
德州仪器 - TI 驱动器
页数 文件大小 规格书
23页 659K
描述
2-Vrms DirectPath? Line Driver With Programmable-Fixed Gain

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DRV612RGT 数据手册

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DRV612  
www.ti.com  
SLOS690B –DECEMBER 2010–REVISED APRIL 2011  
2-Vrms DirectPath™ Line Driver With Programmable-Fixed Gain  
Check for Samples: DRV612  
1
FEATURES  
DESCRIPTION  
The DRV612 is a single-ended, 2-Vrms stereo line  
driver designed to reduce component count, board  
space and cost. It is ideal for single-supply  
electronics where size and cost are critical design  
parameters.  
2
•
DirectPath™  
–
–
–
Eliminates Pops/Clicks  
Eliminates Output DC-Blocking Capacitors  
3-V to 3.6-V Supply Voltage  
•
Low Noise and THD  
The DRV612 does not require a power supply greater  
than 3.3 V to generate its 5.6-VPP output, nor does it  
require a split-rail power supply.  
–
–
SNR > 105 dB at –1× Gain  
Typical Vn < 12 μVms 20 Hz–20 kHz  
at –1× Gain  
Designed using TI’s patented DirectPath technology,  
which integrates a charge pump to generate a  
negative supply rail that provides a clean, pop-free  
ground-biased output. The DRV612 is capable of  
–
THD+N < 0.003% at 10-kΩ Load  
and –1× Gain  
•
•
•
2-Vrms Output Voltage Into 600-Ω Load  
driving  
2 Vms into a 600-Ω load. DirectPath  
technology also allows the removal of the costly  
output dc-blocking capacitors.  
Single-Ended Input and Output  
Programmable Gain Select Reduces  
Component Count  
The device has fixed-gain single-ended inputs with a  
gain-select pin. Using a single resistor on this pin, the  
designer can choose from 13 internal programmable  
gain settings to match the line driver with the codec  
output level. It also reduces the component count and  
board space.  
–
13× Gain Values  
•
•
•
Active Mute With More Than 80 dB Attenuation  
Short Circuit and Thermal Protection  
±8-kV HBM ESD-Protected Outputs  
Line outputs have ±8 kV HBM ESD protection,  
APPLICATIONS  
enabling  
a simple ESD protection circuit. The  
DRV612 has built-in active mute control with more  
that 80 dB attenuation for pop-free mute on/off  
control.  
•
•
•
•
PDP / LCD TV  
DVD Players  
Mini/Micro Combo Systems  
Soundcards  
The DRV612 is available in a 14-pin TSSOP and  
16-pin QFN. For  
a
footprint-compatible stereo  
headphone driver, see TPA6139A2 (SLOS700).  
LEFT  
-
DAC  
+
Programmable  
Gain  
Line Driver  
DRV612  
SOC  
DAC  
-1x to -10x  
RIGHT  
-
+
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
DirectPath is a trademark of Texas Instruments.  
UNLESS OTHERWISE NOTED this document contains  
PRODUCTION DATA information current as of publication date.  
Products conform to specifications per the terms of Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2010–2011, Texas Instruments Incorporated  
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