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參數(shù)資料
| 型號： | TDA7514 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR |
| 中文描述： | 單芯片F(xiàn)M /調(diào)幅調(diào)諧立體聲解碼器和音頻處理器 |
| 文件頁數(shù)： | 71/74頁 |
| 文件大?。?/td> | 604K |
| 代理商： | TDA7514 |
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TDA7514
The attenuator has been realized employing the "soft step" technique that reduces the audible DC click at
the speaker outputs by dividing the 1 dB step into several smaller-amplitude, longer duration transitions.
5.5.4
The volume stage controls the level over a +15 dB..-79 dB + mute range in 1 dB steps. The volume atten-
uator is also realized with the soft step circuitry.
VOLUME CONTROL
5.5.5
The treble filter consists of a second order resonating filter with programmable center frequency. The
boost/cut range is !15 dB in 1 dB steps.
TREBLE FILTER
5.5.6
The bass filter consists of a second order resonating filter with programmable center frequency and quality
factor. It is also possible to set and defeat the DC mode both in cut and in boost. The boost/cut range is
!15 dB in 1 dB steps and the attenuator features the soft step circuitry.
BASS FILTER
5.5.7
The speaker attenuator driver circuit allows separate volume control for each of the four outputs. The level
is controlled over a +15 dB.. -79 dB + mute range in 1 dB steps with soft step.
An output buffer provides DC shift to a typical 4V level and an AC gain of +4 dB.
The source of each speaker output circuit can be chose among the following configurations:
SPEAKER ATTENUATORS
– tone control output via external AC coupling (coupling shared by front and rear channels);
– tone control output via internal DC coupling (coupling shared by front and rear channels);
– rear seat audio (only for rear channels).
It is furthermore possible to mix an external source (typically the chime source) on all the four outputs,
selecting on which outputs the mixing must take place (any combination is allowed). The volume of the
mixing source cannot be changed internally.
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| TDA7515 | 功能描述:音頻 DSP RF Front End RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TDA7515_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:RF front-end for AM/FM-DSP car radios with IF sampling |
| TDA7515A | 制造商:STMicroelectronics 功能描述:TDA7515A - Trays |
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| TDA7515TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:RF front-end for AM/FM-DSP car radios with IF sampling |
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