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參數(shù)資料
| 型號： | LV3329PE |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 音頻控制 |
| 英文描述： | 4 CHANNEL(S), VOLUME CONTROL CIRCUIT, PQFP44 |
| 封裝： | 10 X 10 MM, QIP-44 |
| 文件頁數(shù)： | 19/30頁 |
| 文件大?。?/td> | 216K |
| 代理商： | LV3329PE |
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LV3329PE
No.A1856-26/30
Usage Cautions
(1) Data Transmission at power on
The status of internal analog switches is unstable at power on. Therefore, perform muting or some other
countermeasure until the data has been set.
At power on, initial setting data must be sent once in order to stabilize the bias of each block in a short time.
(2) Description of zero cross switching circuit operation
The LV3329PE have a function to switch zero cross comparator signal detection locations, enabling the selection of
the optimum detection location for blocks whose data is to be updated.Basically, the switching noise can be
minimized by inputting the signal immediately following the block whose data is to be updated to the zero cross
comparator, so it is necessary to switch the detection location every time.
LV3329PE zero cross detection circuit
Zero cross switching operates at the timing (rising edge and falling edge) when the signal crosses the reference
voltage.
(3) Zero cross switching control method
The zero cross switching control method consists of setting the zero cross control bits to the zero cross detection mode,
and specifying the detection blocks before transmitting the data.
(4) Zero cross timer setting
If the input signal becomes lower than the zero cross comparator detection sensitivity, or if only low-frequency
signals are input, zero cross detection continues to be impossible, and data is not latched during this time. The zero
cross timer can set a time for forcible latch during such a status when zero cross detection is not possible.
The method of obtaining the timer time is shown below.
Input gain
Switch
Zero cross
comparator
Volume
Fader
Vs
Vcrt
T
R1
Rt
Tr
TIM
Ct
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LV3329PE-TLM-H | 功能描述:音頻放大器 ELECTRONIC VOLUME RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型: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 |
| LV3335 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
| LV3335M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
| LV3344BE-70.0M | 制造商:PLETRONICS 制造商全稱:Pletronics, Inc. 功能描述:6 Pad Leadless Surface Mount Oscillator |
| LV3344BV-70.0M | 制造商:PLETRONICS 制造商全稱:Pletronics, Inc. 功能描述:6 Pad Leadless Surface Mount Oscillator |
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