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TPA6136A2 PDF预览

TPA6136A2

更新时间： 2024-11-23 07:04:43
品牌 Logo 应用领域
德州仪器 - TI 放大器
页数 文件大小 规格书
22页 901K
描述
25-mW DIRECTPATH STEREO HEADPHONE AMPLIFIER WITH POP SUPPRESSION

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TPA6136A2 数据手册

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TPA6136A2  
www.ti.com ........................................................................................................................................................ SLOS621A–JULY 2009–REVISED AUGUST 2009  
25-mW DIRECTPATH™ STEREO HEADPHONE AMPLIFIER WITH POP SUPPRESSION  
The TPA6136A2 (TPA6136) features fully differential  
inputs with an integrated low pass filter to reduce  
1
FEATURES  
23  
•
Patented DirectPath™ Technology Eliminates  
Need for DC-Blocking Capacitors  
system noise pickup between the audio source and  
the headphone amplifier and to reduce DAC  
out-of-band noise. The high power supply noise  
rejection performance and differential architecture  
provides increased RF noise immunity. For  
single-ended input signals, connect INL+ and INR+ to  
ground.  
–
–
Outputs Biased at 0 V  
Excellent Low Frequency Fidelity  
•
Active Click and Pop Suppression  
•
•
•
HI-Z Output Mode Allows Sharing Output Jack  
2.1 mA Typical Supply Current  
The device has built-in pop suppression circuitry to  
completely eliminate disturbing pop noise during  
turn-on and turn-off. The amplifier outputs have  
short-circuit and thermal-overload protection along  
with ±8 kV HBM ESD protection, simplifying end  
equipment compliance to the IEC 61000-4-2 ESD  
standard.  
Fully Differential Inputs Reduce System Noise  
–
Also Configurable as Single-Ended Inputs  
•
•
SGND Pin Eliminates Ground Loop Noise  
Constant Maximum Output Power from 2.3 V  
to 5.5 V Supply  
–
Simplifies Design to Prevent Acoustic  
Shock  
The TPA6136A2 (TPA6136) operates from a single  
2.3 V to 5.5 V supply with 2.1 mA of typical supply  
current. Shutdown mode reduces supply current to  
less than 1 µA.  
•
•
•
•
•
•
•
MicrosoftTM Windows VistaTM Compliant  
100 dB Power Supply Noise Rejection  
Wide Power Supply Range: 2.3 V to 5.5 V  
Gain Settings: 0 dB and 6 dB  
OUTR+  
OUTR-  
OUTL+  
OUTL-  
INR+  
INR-  
OUTR  
OUTL  
Short-Circuit and Thermal-Overload Protection  
±8 kV HBM ESD Protected Outputs  
Small Package Available  
CODEC  
TPA6136A2  
INL+  
INL-  
SGND  
GND  
–
16-Ball, 1.6 x 1.6 mm, 0.4 mm Pitch WCSP  
ENABLE  
EN  
GAIN  
HI-Z MODE  
VBAT  
GAIN  
HI-Z  
VDD  
APPLICATIONS  
HPVSS  
CPN  
•
•
•
•
Smart Phones / Cellular Phones  
Portable Media / MP3 Players  
Notebook Computers  
HPVDD  
CPP  
Portable Gaming  
DESCRIPTION  
The TPA6136A2 (sometimes referred to as TPA6136)  
is a DirectPath™ stereo headphone amplifier that  
eliminates the need for external dc-blocking output  
capacitors. Differential stereo inputs and built-in  
resistors set the device gain, further reducing external  
component count. Gain is selectable at 0 dB or 6 dB.  
The amplifier drives 25 mW into 16 Ω speakers from  
a single 2.3 V supply. The TPA6136A2 (TPA6136)  
provides  
a
constant maximum output power  
independent of the supply voltage, thus facilitating the  
design for prevention of acoustic shock.  
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
DirectPath is a trademark of Texas Instruments.  
Windows Vista is a trademark of Microsoft Corporation.  
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 © 2009, Texas Instruments Incorporated  
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TPA6136A2 替代型号

型号 品牌 替代类型 描述 数据表
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