參數(shù)資料
型號(hào)： TS2012EIJT
廠商： STMICROELECTRONICS
元件分類(lèi)： 音頻／視頻放大
英文描述： 2.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA16
封裝： 2.10 X 2.10 MM, 0.50 MM PITCH, ROHS COMPLIANT, FLIP CHIP PACKAGE, 16 PIN
文件頁(yè)數(shù)： 19/33頁(yè)
文件大?。?/td> 656K
代理商： TS2012EIJT
Application information
TS2012FC
26/33
4.9
Output filter considerations
The TS2012 is designed to operate without an output filter. However, due to very sharp
transients on the TS2012 output, EMI-radiated emissions may cause some standard
compliance issues.
These EMI standard compliance issues can appear if the distance between the TS2012
outputs and loudspeaker terminal are long (typically more than 50 mm, or 100 mm in both
directions, to the speaker terminals). Because the PCB layout and internal equipment
device are different for each configuration, it is difficult to provide a one-size-fits-all solution.
However, to decrease the probability of EMI issues, there are several simple rules to follow.
●
Reduce, as much as possible, the distance between the TS2012 output pins and the
speaker terminals.
●
Use a ground plane to "shield" sensitive wires.
●
Place, as close as possible to the TS2012 and in series with each output, a ferrite bead
with a rated current of at least 2.5 A and an impedance greater than 50
Ω at
frequencies above 30 MHz. If, after testing, these ferrite beads are not necessary,
replace them by a short circuit.
●
Allow extra footprint to place, if necessary, a capacitor to short perturbations to ground
Figure 40.
Ferrite chip bead placement
In the case where the distance between the TS2012 output and the speaker terminals is too
long, it is possible to have low frequency EMI issues due to the fact that the typical operating
frequency is 280 kHz. In this configuration, it is necessary to use the output filter
represented in Figure 1 on page 5 as close as possible to the TS2012.
4.10
Short-circuit protection
The TS2012 includes output short-circuit protection. This protection prevents the device
from being damaged in case of fault conditions on the amplifier outputs.
When a channel is in operating mode and a short-circuit occurs between two outputs of the
channel or between an output and ground, the short-circuit protection detects this situation
and puts the appropriate channel into standby. To put the channel back into operating mode,
it is necessary to put the channel’s standby pin to logical LO, and then back again to logical
HI and wake up the channel.
to speaker
about 100pF
gnd
Ferrite chip bead
From output
相關(guān)PDF資料
PDF描述
TS2012IQT 2.8 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC20
TS34119CDC3 2 CHANNEL, AUDIO AMPLIFIER, PDIP8
TS34119CSRL 2 CHANNEL, AUDIO AMPLIFIER, PDSO8
TS3431BIZ-AP 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PBCY3
TS3431IZ 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PBCY3
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TS2012FC 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Filter-free flip-chip stereo 2x2.5 W class D audio power amplifer
TS2012IQT 功能描述:音頻放大器 FILTER-FREE STEREO 2X2.8 CLASS D P AMP RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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
TS2012IQT-CUT TAPE 制造商:ST 功能描述:TS2012 Series 2.8 W Filter-Free Stereo Class D Audio Power Amplifier - QFN-20
TS2012-W1 制造商:Black Box Corporation 功能描述:1 YEAR WARRANTY FOR TS2012
TS2012-W3 制造商:Black Box Corporation 功能描述:3 YEAR WARRANTY FOR TS2012
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