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参数资料
| 型号： | NJU8753 |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Analog Signal Input Class D Amplifier |
| 中文描述： | 模拟信号输入D类放大器 |
| 文件页数： | 7/7页 |
| 文件大小： | 104K |
| 代理商： | NJU8753 |
Ver.2003-09-26
NJU3555
NJU8753
- 7 -
TYPICAL APPLICATION CIRCUIT
Note 5) De-coupling capacitors must be connected between each power supply pin and GND.
The capacity value should be adjusted on the application circuit and the operation temperature. It may
malfunction if capacity value is small.
Note 6) The power supply for V
DDO
require fast driving response performance such as a switching regulator for
better THD.
THD performance becomes worse by ripple if the capacity of De-coupling capacitors is small.
Note 7) The above circuit shows only application example and does not guarantee the any electrical
characteristics. Therefore, please test the circuit carefully to fit your application.
The cutoff frequency of the LC filter influences the quality of sound.
The Q factor of the LC filter must be less than “1”. Otherwise, the operating current increase when the
frequency of input signal is closed to the cutoff frequency.
Note 8) The transition time for EN1 and EN2 signals must be less than 100
μ
s. Otherwise, a malfunction may
be occurred.
Note 9) (1)-(28) indicates pin number.
Piezo Speaker
2μF
Figure 2. Application Circuit example
N
OUTP(20)
OUTN(16)
V
DD
(28)
V
SS
(27)
0.1μF
10μF
V
DD
IN(26)
COM(25)
EN1(24)
EN2(12)
10μF
47μH
47uH
4.7
4.7
IN
2.2μF
22000pF
2.4k
V
DDO
(14,15)
V
OUT
(10)
V
BAT
V
SS
(17,19)
FB(4)
L
X
(8,9)
TEST1(1)
TEST2(23)
TEST3(2)
V
DDO
(21,22)
Schottky diode
(IF=1A,VF=0.45V)
R
1
2M
R
2
330k
0.1μF
10μF
V
REG
(3)
V
SS
(5)
0.1μF
10μF
V
DD
0.1μF
0.1μF
22μH(DCR=0.5
)
22μF
VR(11)
V
SS1
(6,7)
0.1μF
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
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相关代理商/技术参数 |
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|---|---|
| NJU8753KN1 | 功能描述:功率放大器 w/DC-DC Converter RoHS:否 制造商:TriQuint Semiconductor 封装 / 箱体: 工作电源电压:28 V 电源电流:2.5 A 工作温度范围: 封装: |
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| NJU8754KM1 | 功能描述:音频放大器 Class D Power RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| NJU8754V | 制造商:NJRC 制造商全称:New Japan Radio 功能描述:Analog Signal Input Monaural Class D Power Amplifier |
| NJU8754V(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:Audio Amp Speaker 1-CH Mono 1.2W Class-D 10-Pin SSOP T/R |
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