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參數(shù)資料
| 型號： | TEA6320T-T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), SOUND FADER CONTROL CIRCUIT, PDSO32 |
| 文件頁數(shù)： | 21/40頁 |
| 文件大?。?/td> | 188K |
| 代理商： | TEA6320T-T |
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1995 Dec 19
28
Philips Semiconductors
Preliminary specication
Sound fader control circuit
TEA6320
Selection of input signals by using the zero crossing
mute mode
A selection from input A (IAL) to input B (IBL) left sources
produces a modulation click depending on the difference
of the signal values at the time of switching.
At t1 the maximum possible difference between signals is
7 V(p-p) (see Fig. 16) and gives a large click. Using the
cross detector no modulation click is audible.
For example: The selection is enabled at t1, the
microcontroller sets the zero cross bit (ZCM = 1) and then
the mute bit (GMU = 1) via the I2C-bus. The output signal
follows the input A signal, until the next zero crossing
occurs and then activates mute.
After a fixed delay time at t2, the microcontroller sends the
bits for input switching and mute inactive.
The output signal remains muted until the next signal zero
crossing of input B (IBL) occurs, and then follows that
signal.
The delay time t2 t1 is e.g. 40 ms. Therefore the capacity
Cm = 3.3 nF. The zero cross function is working at the
lowest frequency of 40 Hz determined by the Cm capacitor.
Fig.16 Zero cross function; only one channel shown.
handbook, full pagewidth
V
t
t1
4
0
1
2
3
4
1
2
3
t2
MED436
(1)
(2)
(3)
(1) Input A (IAL).
(2) Output.
(3) Input B (IBL).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TEA6321 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Sound fader control circuit |
| TEA6321T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Sound fader control circuit |
| TEA6321T/V1 | 功能描述:音頻 DSP AUDIO POWER 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 |
| TEA6321T/V1,512 | 功能描述:音頻 DSP AUDIO POWER 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 |
| TEA6321T/V1,518 | 功能描述:音頻 DSP AUDIO POWER 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 |
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