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參數資料
| 型號： | TSC2100IRHBG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC32 |
| 封裝： | 5 X 5 MM, GREEN, PLASTIC, QFN-32 |
| 文件頁數： | 27/77頁 |
| 文件大小： | 1079K |
| 代理商： | TSC2100IRHBG4 |
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TSC2100
SLAS378 NOVEMBER 2003
www.ti.com
33
10
15
20
0 100 200 300 400 500 600
Gain
dB
5
0
f Frequency Hz
700 800 900 1 k
Figure 29. Frequency Response For 16-W Load and 50-mF Decoupling Capacitor After Gain
Compensation Using Above Set of Coefficients for Audio Effects Filter
Using the capless output configuration eliminates the need for these capacitors and removes the accompanying high-pass
filter entirely. However, this configuration does have one drawback – if the RETURN terminal of the headphone jack (which
is wired to the TSC2100 VGND pin) is ever connected to a ground, that is shorted to the TSC2100 ground pin, then the
VGND amplifier enters short-circuit protection, and the audio output does not function properly.
TSC2100
HPR
HPL
VGND
Headphone Jack
TSC2100
HPR
HPL
VGND
Headphone Jack
Figure 30. Headphone Configurations, AC-Coupled (left) and Capless (right)
The audio output drivers in high power mode can also be configured to drive a mono differential signal into a speaker load
of 8- minimum. The speaker load should be connected differentially between the HPR and HPL outputs. There are several
options for playback of DAC data in this case. If a stereo digital signal is available, this signal can be sent in normal stereo
fashion to the audio DAC. The programmable digital effects filters can then be used to invert one channel, so that the signal
applied across the speaker load is (LEFT + RIGHT), or effectively a mono-mix of the two channels. A simple example of
how to implement this inversion using the programmable filters is to set the coefficients as follows:
Leftchannel coefficients:
N0=32767, N1=0, N2=0, N3=32767, N4=0, N5=0
D1=0, D2=0, D4=0, D5=0
Rightchannel coefficients: N0=32767, N1=0, N2=0, N3=32767, N4=0, N5=0
D1=0, D2=0, D4=0, D5=0
This provides no spectral shaping, it only inverts the right channel relative to the left channel, such that the signals at HPL
and HPR are (LEFT) and (RIGHT), with the signal across the speaker then being LEFT+ RIGHT. In a general case when
spectral shaping is also desired, the inversion can be accomplished simply by setting N0, N1, and N2 coefficients of one
channel to the negative of the values set for the other channel. Note that the programmable filtering must be enabled by
setting BITD1/REG05H/Page2 to 1.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TSC2100IRHBR | 功能描述:觸摸屏轉換器和控制器 Prog 4-Wire w/Ster Codec & Hdph/Spk Amp RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| TSC2100IRHBRG4 | 功能描述:觸摸屏轉換器和控制器 Prog 4-Wire w/Ster Codec & Hdph/Spk Amp RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數據速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20 |
| TSC2100IRHBRMULT1 | 制造商:Texas Instruments 功能描述: |
| TSC2101 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:AUDIO CODEC WITH INTERATED HEADPHONE SPEAKER AMPLIFIER AND TOUCH SCREEN CONTROLLER |
| TSC2101_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:AUDIO CODEC WITH INTEGRATED HEADPHONE, SPEAKER AMPLIFIER AND TOUCH SCREEN CONTROLLER |
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