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參數(shù)資料
| 型號(hào)： | TDA7404D |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻控制 |
| 英文描述： | 1 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
| 封裝： | SOP-28 |
| 文件頁(yè)數(shù)： | 9/35頁(yè) |
| 文件大?。?/td> | 633K |
| 代理商： | TDA7404D |
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TDA7404
Description of functionality
4.6
Soft-step volume
When the volume-level is changed audible clicks could appear at the output. The root cause
of those clicks could either be a DC-Offset before the volume-stage or the sudden change of
the envelope of the audiosignal. With the soft-step feature both kinds of clicks could be
reduced to a minimum and are no more audible. Four programmable soft step time from one
step to the next, are user selectable.
Figure 9.
Soft-step timing
1.
For steps more than 1 dB the soft-step mode should be deactivated because it could generate a 1 dB error
during the blend-time.
4.7
Bass
There are three parameters programmable in the bass stage:
4.7.1
Attenuation
Figure 10 shows the attenuation as a function of frequency at a center frequency of 80Hz.
Figure 10.
Bass control @ fC = 80 Hz, Q = 1
Time
SS Time
-1dB
-2dB
Vout
2dB
1dB
-15.0
-10.0
-5.0
0.0
5.0
10.0
15.0
10.0
100.0
1.0K
10.0K
dB
Hz
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參數(shù)描述 |
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| TDA7404DTR | 功能描述:音頻 DSP Car Radio Signal 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 |
| TDA7405 | 功能描述:音頻 DSP EQUALIZER CAR RADIO SIGNAL PROCESSOR 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 |
| TDA7405_04 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:EQUALIZER CARRADIO SIGNAL PROCESSOR |
| TDA7405TR | 功能描述:處理器 - 專門應(yīng)用 EQUALIZER CAR RADIO SIGNAL PROCESSOR RoHS:否 制造商:Freescale Semiconductor 類型:Multimedia Applications 核心:ARM Cortex A9 處理器系列:i.MX6 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:1 GHz 指令/數(shù)據(jù)緩存: 數(shù)據(jù) RAM 大小:128 KB 數(shù)據(jù) ROM 大小: 工作電源電壓: 最大工作溫度:+ 95 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MAPBGA-432 |
| TDA7406 | 功能描述:音頻 DSP Car Radio Signal 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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