參數(shù)資料
型號(hào)： TPA6140A2YFFEVM
廠商： Texas Instruments
文件頁數(shù)： 7/30頁
文件大?。?/td> 0K
描述： EVALUATION MODULE FOR TPA6140A2
視頻文件： TPA6140A2 Demonstration
特色產(chǎn)品： TPA6140A2 Class G DirectPath? Stereo Headphone Amplifier
標(biāo)準(zhǔn)包裝： 1
系列： DirectPath™
放大器類型： G 類
輸出類型： 耳機(jī)，2-通道（立體聲）
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： 32mW x 2 @ 32 歐姆
電源電壓： 2.5 V ~ 5.5 V
工作溫度： -40°C ~ 85°C
板類型： 完全填充
已用 IC / 零件： TPA6140A2
已供物品： 板，CD
產(chǎn)品目錄頁面： 878 (CN2011-ZH PDF)
配用： WM2582-ND - EVALDI EARBUDS TYPE Y
相關(guān)產(chǎn)品： 296-24303-6-ND - IC AMP AUDIO 25MW STER 16DSBGA
296-24303-1-ND - IC AMP AUDIO 25MW STER 16DSBGA
296-24303-2-ND - IC AMP AUDIO 25MW STER 16DSBGA
296-24237-6-ND - IC AMP AUDIO 25MW STER 16DSBGA
296-24237-1-ND - IC AMP AUDIO 25MW STER 16DSBGA
296-24237-2-ND - IC AMP AUDIO 25MW STER 16DSBGA
其它名稱： 296-24299
INR+
INR-
INL+
INL-
AGND
SGND
OUTR
HPVSS
CPP
CPN
SW
HPVDD
OUTL
2.2
F
m
Vbat
CODEC
OUTR+
OUTR-
OUTL+
OUTL-
1 mF
SDA
SCL
AVDD
SDA
nHcoil
FM Tuner
2.2
H
m
2.2
F
m
TPA6140A2
www.ti.com................................................................................................................................................. SLOS598A – MARCH 2009 – REVISED OCTOBER 2009
INDUCTOR SELECTION
The TPA6140A2 requires one inductor for its DC/DC converter. The following table lists recommended inductors.
Inductors not shown on this table can be be used if they have similar performance characteristics.
When selecting an inductor observe the following rules:
Lower DCR increases DC/DC converter efficiency.
The minimum working inductance should never be below 1
μH.
Include temperature and aging derating factors into the inductor value calculations.
MANUFACTURER
PART NUMBER
TOKO
MDT2012-CH2R2A
LQM21PN2R2MC0D
Murata
LQH2MCN2R2M02L
BRL2012T2R2M
Taiyo Yuden
BRC1608T2R2M
GROUND SENSE FUNCTION
The ground sense pin, SGND, reduces ground-loop noise when the audio output jack is connected to a different
ground reference than codec and amplifier ground. Always connect the SGND pin to the headphone jack. This
reduces output offset voltage and eliminates turn-on pop. Figure 29 shows how to connect SGND when an FM
radio antenna function is implemented on the headphone wire. The nH coil and capacitor separate the RF signal
from the audio GND signal. In this case, SGND is used to eliminate the offset voltage that is generated from the
audio signal current and the RF coil low-frequency impedance.
The voltage difference between SGND and AGND cannot be greater than ±300 mV. The amplifier performance
degrades if the voltage difference between SGND and AGND is greater than ±300 mV.
Figure 29. Sense Ground
Copyright 2009, Texas Instruments Incorporated
15
Product Folder Link(s): TPA6140A2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPA6140A2YFFR 功能描述:音頻放大器 25mW Class-G Direct Path St Headph Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TPA6140A2YFFT 功能描述:音頻放大器 25mW Class-G Direct Path St Headph Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TPA6140A2YFFT 制造商:Texas Instruments 功能描述:Audio Power Amplifier IC
TPA6141A2 制造商:TI 制造商全稱:Texas Instruments 功能描述:CLASS-G DIRECTPATH? STEREO HEADPHONE AMPLIFIER
TPA6141A2YFFEVM 功能描述:音頻 IC 開發(fā)工具 TPA6141A2YFF Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
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