- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384605 > LP3950SLX (NATIONAL SEMICONDUCTOR CORP) Color LED Driver with Audio Synchronizer PDF資料下載
參數(shù)資料
| 型號： | LP3950SLX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 顯示驅(qū)動器 |
| 英文描述： | Color LED Driver with Audio Synchronizer |
| 中文描述： | LED DISPLAY DRIVER, QCC32 |
| 封裝： | 4.50 X 5.50 MM, 0.80 MM HEIGHT, 0.50 MM PITCH, CSP-32 |
| 文件頁數(shù)： | 29/31頁 |
| 文件大?。?/td> | 1085K |
| 代理商： | LP3950SLX |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁當前第29頁第30頁第31頁
Typical Applications
(Continued)
20129343
There may be cases where the audio input signal going into the LP3950 is too weak for audio synchronization. This figure
presents a single-supply inverting amplifier connected to the ASE input for audio signal amplification. The amplification is +20 dB,
which is well enough for 20 mV
p-p
audio signal. Because the amplifier (LMV321) is operating in single supply voltage, a voltage
divider using R
3
and R
4
is implemented to bias the amplifier so the input signal is within the input common-mode voltage range
of the amplifier. The capacitor C
4
is placed between the inverting input and resistor R
1
to block the DC signal going into the audio
signal source. The values of R
1
and C
4
affect the cutoff frequency, f
c
= 1/(2*Pi*R
1
*C
4
), in this case it is around 160 Hz.As a result,
the LMV321 output signal is centered around mid-supply, that is V
DD
/2. The output can swing to both rails, maximizing the
signal-to-noise ratio in a low voltage system
FIGURE 24. Backlight and Keypad LEDs Controlled by the Pattern Generator - Funlight LEDs Controlled by Audio
Synchronization
L
www.national.com
29
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LP3952 | 6-Channel Color LED Driver with Audio Synchronization |
| LP3952RLX | 6-Channel Color LED Driver with Audio Synchronization |
| LP3952RL | 6-Channel Color LED Driver with Audio Synchronization |
| LP39542 | Zener Diode; Application: Low noise; Pd (mW): 250; Vz (V): 4.3 to 4.7; Condition Iz at Vz (mA): 0.5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: LLD |
| LP39542RL | Zener Diode; Application: Low noise; Pd (mW): 250; Vz (V): 4.6 to 5.0; Condition Iz at Vz (mA): 0.5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: LLD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3950SLX/NOPB | 功能描述:IC LED DRVR WHITE BCKLGT 32-TSCP RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動器 系列:PowerWise® 標準包裝:1 系列:- 恒定電流:- 恒定電壓:- 拓撲:PWM，切換式電容器（充電泵） 輸出數(shù):1 內(nèi)部驅(qū)動器:是 類型 - 主要:背光 類型 - 次要:白色 LED 頻率:642kHz 電源電壓:2.7 V ~ 5.5 V 輸出電壓:5V 安裝類型:表面貼裝 封裝/外殼:10-VFDFN 裸露焊盤 供應商設備封裝:10-VSON 包裝:剪切帶 (CT) 工作溫度:-30°C ~ 85°C 產(chǎn)品目錄頁面:1371 (CN2011-ZH PDF) 其它名稱:BD1603NUV-E2CT |
| LP3952 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:6-Channel Color LED Driver with Audio Synchronization |
| LP3952RL | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:6-Channel Color LED Driver with Audio Synchronization |
| LP3952RL/NOPB | 功能描述:LED照明驅(qū)動器 RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| LP3952RLX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:6-Channel Color LED Driver with Audio Synchronization |
發(fā)布緊急采購，3分鐘左右您將得到回復。