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參數(shù)資料
| 型號： | LV1110NM |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | 0.80 MM PITCH, QFP-64 |
| 文件頁數(shù)： | 8/22頁 |
| 文件大?。?/td> | 351K |
| 代理商： | LV1110NM |
Graphic equalizer level attenuation technique
Since the graphic equalizer provides a maximum boost of 10 dB, the head room is insufficient when this boost is used.
Therefore, the signal level must be attenuated in the graphic equalizer block. One technique for providing this
attenuation is to connect resistors in series with the external capacitors connected at pins 8 and 9 in the DC cut circuit.
The formula below can be used to determine the amount of attenuation due to the value of the resistor.
Attenuation: VG = 20 × log (1 – R/10 K + R) dB
Example: If R = 10 k
, the attenuation will be –6 dB.
Pins 8 and 9
No. 6094-16/22
LV1110NM
Pin Functions
Pin No.
Pin Name
Pin voltage
Equivalent circuit
Description
Function input pins. A TAPE, TUNER, or EXT inputs
passes through an internal 6-dB amplifier; a CD or MD
input, through a buffer amplifier.
1
54
55
56
57
58
61
62
63
64
EXT.R.IN
CD.L.IN
TAPE.L.IN
TUNER.L.IN
MD.L.IN
EXT.L.IN
CD.R.IN
TAPE.R.IN
TUNER.R.IN
MD.R.IN
1/2 VCC
Recording output pins.
2
3
52
53
REC.R.OUT1
REC.R.OUT2
REC.L.OUT1
REC.L.OUT2
1/2 VCC
Microphone mixer and echo input pin.
4
MIC.IN
1/2 VCC
Continued on next page.
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