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參數(shù)資料
| 型號： | NJW1191V |
| 廠商： | New Japan Radio Co., Ltd. |
| 英文描述： | 4-channel Electronic Volume with Input Selector |
| 中文描述： | 4通道電子音量的輸入選擇 |
| 文件頁數(shù)： | 5/20頁 |
| 文件大?。?/td> | 268K |
| 代理商： | NJW1191V |
NJW1191
– 5 –
!
APPLICATION CIRCUIT
!
APPLICATION NOTES
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
+
+
+
+
GND
VREF
BIAS
I
S
MASTER
VOLUME
& LOUDNESS
MASTER
VOLUME
& LOUDNESS
TONE
CONTROL
FRONT
VOLUME
REAR
VOLUME
FRONT
VOLUME
REAR
VOLUME
I
2
C BUS
INTERFACE
SCL
SDA
10
μ
F
1
μ
F
1
μ
F
1
μ
F
1
μ
F
470pF
39k
4.7k
100nF
4.7nF
100nF
4.7
μ
F
2.2k
1
μ
F
1
μ
F
100nF
4.7
μ
F
2.2k
4.7nF
4.7k
100nF
39k
470pF
1
μ
F
1
μ
F
1
μ
F
1
μ
F
100
μ
F
+9V
V+
+
+
+
+
+
+
+
+
+
+
+
10
μ
F
+
10
μ
F
10
μ
F
10
μ
F
TONE
CONTROL
I
S
C1
C2
C3
C4
C5
C6
C7
R1
R2
C8
C9
C10
R3
C11
C12
C13
R4
100
R5 100
+
+
C16
C17
R6
C18
C19
C20
R7
R8
C21
C21
C22
C23
C24
C25
Pin No.
Function
Note
2
VREF
C1 can be adjusted rise and fall time of reference voltage at power on and off. Take care that the reduced C1makes
sensitive to ripple of power supply.
The Input impedance is designed about 48k ohms. The ground line should be inserted between each input lines to
avoid cross talk.
Loudness frequency can be adjusted with external parts(See page 6) . Especialy, 8 and 25 pins should be kept from
large signal lines such as digital signal lines or the other sound signal lines to avoid digitaly noise or cross talk in
Loudness mode.
Tone Bass and Treble cut off frequency can be adjusted with external parts(See page6). These pins should be kept
from large signal lines such as digital signal lines or the other sound signal lines to avoid the digitaly noise or cross
talk.
Output impedance is designed about 50 ohms.
3 - 6, 27 -30
Inputs
7,8,25,26
Loudness filter
Taps
9,10,11,22,23,
24
Tone filter
terminals
12,21
Tone outputs
Balance Fedar
volume inputs
Balance Fedar
volume
outputs
13,20
Input impedance is designed about 24k ohms.
14,15,18,19
Output impedance is designed about 50 ohms.
16,17
I
2
C control
signal ports
These terminals should be inserted resistance about 100 ohms between terminal and signal source to reduce the
digitaly noise. These lines should be kept from analog signal lines and or near by the chip to avoid digitaly noise.
Inserted ground line between analog line and digital line should be recommended.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| NJW1191V(TE1) | 制造商:New Japan Radio Co Ltd (NJR/JRC) 功能描述:Cut Tape 制造商:New Japan Radio 功能描述:Electronic Volume 32-Pin SSOP T/R |
| NJW1191V-TE1 | 功能描述:音頻放大器 4-Channel Electronic Volume for Car Audio RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| NJW1191V-TE2 | 功能描述:音頻放大器 4-Channel Electronic Volume for Car Audio RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| NJW1192 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:電子音量IC |
| NJW1192V | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-channel Electronic Volume with Input Selector |
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