參數(shù)資料
型號(hào): LP3952RL
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 顯示驅(qū)動(dòng)器
英文描述: 6-Channel Color LED Driver with Audio Synchronization
中文描述: LED DISPLAY DRIVER, PBGA36
封裝: 3 X 3 MM, 0.65 MM HEIGHT, 0.50 MM PITCH, MICRO, SMD-36
文件頁數(shù): 40/44頁
文件大?。?/td> 1621K
代理商: LP3952RL
AUDIO_SYNC_CTRL1 (2AH) – AUDIO SYNCHRONIZATION AND ADC CONTROL REGISTER 1
D7
D6
D5
D4
D3
D2
D1
D0
gain_sel[2:0]
rw-0
sync_mode
rw-0
en_agc
rw-0
en_sync
rw-0
input_sel[1:0]
rw-1
rw-0
rw-0
rw-1
gain_sel[2:0]
Bits 7-5
Input signal gain control
gain_sel[2:0]
000
001
010
011
100
101
110
111
gain, dB
0 (default)
3
6
9
12
15
18
21
sync_mode
Bit 4
Input filter mode control
0 – Amplitude mode
1 – Frequency mode
0 – automatic gain control disabled
1 – automatic gain control enabled
0 – audio synchronization disabled
1 – audio synchronization enabled
ADC input selector
input_sel[1:0]
00
Single ended input signal (ASE)
01
10
11
en_agc
Bit 3
en_sync
Bit 2
input_sel[1:0]
Bits 1-0
Input
Not used
Not used
No input (default)
AUDIO_SYNC_CTRL2 (2BH) – AUDIO SYNCHRONIZATION AND ADC CONTROL REGISTER 2
D7
D6
r-0
D5
D4
D3
D2
D1
speed_ctrl[1:0]
rw-0
D0
en_avg
rw-0
mode_ctrl[1:0]
rw-0
r-0
r-0
rw-0
rw-0
en_avg
Bit 4
0 – averaging disabled. f
sample
= 122 Hz, data in
register changes every 8.2 ms.
1 – averaging enabled. f
sample
= 244 Hz, averaging of
64 samples, data in register changes every 262 ms
(3.2Hz).
Filtering mode control
LEDs light response time to audio input
speed_ctrl[1:0]
00
01
10
11
mode_ctrl[1:0]
Bits 3-2
speed_ctrl[1:0]
Bits 1-0
Response
FASTEST (default)
FAST
MEDIUM
SLOW
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