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參數資料
| 型號： | LP3952 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 6-Channel Color LED Driver with Audio Synchronization |
| 中文描述： | 6通道彩色LED驅動器與音頻同步 |
| 文件頁數： | 18/44頁 |
| 文件大?。?/td> | 1621K |
| 代理商： | LP3952 |
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AUDIO SYNCHRONIZATION ELECTRICAL PARAMETERS
Symbol
Z
IN
A
IN
Parameter
Input Impedance of ASE
Conditions
Min
250
Typical
500
Max
Units
k
Ω
V
Audio Input Level Range
(peak-to-peak)
Gain = 21 dB
Gain = 0 dB
0.1
V
DDA
-0.1
f
3dB
Crossover Frequencies (-3 dB)
Narrow Frequency Response
kHz
Low Pass
Band Pass
High Pass
Low Pass
Band Pass
High Pass
0.5
1.0 and 1.5
2.0
1.0
2.0 and 3.0
4.0
Wide Frequency Response
CONTROL OF ADC AND AUDIO SYNCHRONIZATION
The following table describes the controls required for audio synchronization.
Audio_sync_CTRL1 (2AH)
GAIN_SEL[2:0]
Bits 7-5
Input signal gain control. Range 0...21 dB, step 3 dB:
[000] = 0 dB (default)
[001] = 3 dB
[010] = 6 dB
Synchronization mode selector.
SYNCMODE = 0
→
Amplitude Mode (default)
SYNCMODE = 1
→
Frequency Mode
Automatic Gain Control enable
1 = enabled
0 = disabled (Gain Select enabled) (default)
Audio synchronization enable
1 = Enabled
Note : If AGC is enabled, AGC gain starts from current GAIN_SEL gain value.
0 = Disabled (default)
[00] = Single ended input signal, ASE.
[01] = Not used
[10] = Not used
[11] = No input (default)
Audio_sync_CTRL2 (2BH)
0 – averaging disabled (not applicable in audio sync mode)
1 – averaging enabled (not applicable in audio sync mode)
See below: Mode control
Sets the LEDs light response time to audio input.
[00] = FASTEST (default)
[01] = FAST
[10] = MEDIUM
[11] = SLOW
(For SLOW setting in amplitude mode f
MAX
= 3.8 Hz,
Frequency mode f
MAX
= 7.6 Hz)
[011] = 9 dB
[100] = 12 dB
[101] = 15 dB
[110] = 18 dB
[111] = 21 dB
SYNC_MODE
Bit 4
EN_AGC
Bit 3
EN_SYNC
Bit 2
INPUT_SEL[1:0]
Bits 1-0
EN_AVG
Bit 4
MODE_CTRL[1:0]
Bits 3-2
SPEED_CTRL[1:0]
Bits 1-0
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相關PDF資料 |
PDF描述 |
|---|---|
| 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 |
| LP39542RLX | Zener Diode; Application: Low noise; Pd (mW): 250; Vz (V): 4.9 to 5.3; Condition Iz at Vz (mA): 0.5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: LLD |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| LP3952RLX/NOPB | 功能描述:LED照明驅動器 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 |
| LP3954 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Advanced Lighting Management Unit |
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