- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358727 > LA2650 (Sanyo Electric Co.,Ltd.) Bass Boost IC PDF資料下載
參數(shù)資料
| 型號(hào)： | LA2650 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Bass Boost IC |
| 中文描述： | 低音增強(qiáng)集成電路 |
| 文件頁數(shù)： | 6/13頁 |
| 文件大?。?/td> | 319K |
| 代理商： | LA2650 |
Notes on LA2650 Operation
LPF cutoff frequency
Use the following formula to calculate the cutoff frequency:
· fc = 1/(2
π
CR) Hz
However: R = 50 k
, since the resistor is on chip.
Thus the cutoff frequency can be set by the external capacitor.
Example: C = 0.039 μF (As in the sample application circuit)
fc = 81.6 Hz
Maximum boost gain
Use the following formula to calculate the maximum boost gain.
· BASS OUT total gain (G
B
) =
α
+4
×
20 log
10
(1 + 4
π
2
f
2
C
2
R
2
)
–1/2
+
β
Here,
α
= Boost gain (20, 25, 30, or 35 dB)
β
= Addition level (0, –3, –6, –9, –15, –20, –25, or –35 dB)
f: Frequency
C: The LPF external capacitor
R = 50 k
(built in)
Example: When
α
= 35 dB,
β
= 0 dB, f = 50 Hz, C = 0.039 μF (As in the application circuit)
G
B
= 29.46 dB
Pin Functions
No. 5652-6/13
LA2650
Pin No.
Pin
Pin voltage (V)
Pin function
Equivalent circuit
1
IN-L
1/2 V
CC
Signal input pin
The input impedance is 50 k
20
IN-R
2
BOOST
0.7 to 2
Smoothing pin for boost on/off switching
ON/OFF
SMOOTHING
3
ENABLE
Apply either 0 or 5 V.
Serial control data input pins
4
DATA
5
CLOCK
7
DET-OUT
1.7 to 3.5
The detection attack and recovery times are set
by the external resistor and capacitor connected
to this pin.
8
LED
V
CC
max.
LED cathode
Influx current: 20 mA (maximum)
Continued on next page.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LA2655V | Clear Sound Control IC Loading Plus Sound Algorithm |
| LA2800N | Telephone Answering Machine |
| LA2805 | Telephone Answering Machine Use |
| LA2805M | Telephone Answering Machine Use |
| LA2806M | Signal Processor and Power Amplifier IC for Telephone Answering Machines |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA2655V | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Clear Sound Control IC Loading Plus Sound Algorithm |
| LA265B-H-1-PF | 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
| LA265W-G-PF | 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
| LA266B-HRDBK-2-PF | 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
| LA266B-HRDBK-PF | 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。