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參數(shù)資料
| 型號： | LV3319PM |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PQFP44 |
| 封裝： | 10 X 10 MM, QIP-44 |
| 文件頁數(shù)： | 16/26頁 |
| 文件大?。?/td> | 830K |
| 代理商： | LV3319PM |
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LV3319PM
Usage Cautions
(1) Request to send the initial data at power ON
Though the circuit initializing the IC inside at power ON is incorporated, be sure to send data to all sub-address as the
initial data at power ON.
At power ON, muting or other measures must be taken externally till the data is set.
Reference data
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
VDD power rise time
Trise
0V → 5V power rise time
30
-
μs
VDD voltage when power ON reset is canceled
Vpor
-
5
-
V
(2) Description of zero cross switching circuit operation
The LV3319PM 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.
Input gain
Zero cross
comparator
Switch
Volume
Fader
LV3319PM zero cross detection circuit
(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.
The I2C data is held at rise of the ACK clock. For zero-cross operation, this operation begins at rise of ACK clock of
the first data.
On detecting zero cross, all of holding data are switched. (Without zero cross, data is switched at rise of ACK clock.)
(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.
(5) Soft step operation
The LV3319PM have a soft step function at 3 band equalizer control block for low switching noise.
The Soft step time can be selected by send to I2C control. (l0ms, 20ms, 40ms, 80ms)
soft step time
Data latch timing
soft step start
No.A1703-23/26
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相關(guān)代理商/技術(shù)參數(shù) |
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| LV3319PMGEVB | 制造商:ON Semiconductor 功能描述:EVB FOR LV3319PM - Bulk 制造商:ON Semiconductor 功能描述:BOARD EVAL FOR LV3319PM |
| LV3319PM-MPB-E | 功能描述:音頻放大器 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 |
| LV3319PM-TLM-E | 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 |
| LV3319PM-V147-NE | 功能描述:IC ELECTRONIC VOLUME AUTO 44QLP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關(guān)文件:STA321 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6 |
| LV-331M2G---2550S | 制造商:Surge Components Inc 功能描述:CAP ALUM 330UF 400V ?20% 2000LHRS 25 X 50 - Bulk |
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