参数资料
型号: BD5638NUX-TR
厂商: Rohm Semiconductor
文件页数: 8/11页
文件大小: 0K
描述: IC AMP SPEAKER 1-CH MONO VSON8
标准包装: 4,000
类型: D 类
输出类型: 1-通道(单声道)
在某负载时最大输出功率 x 通道数量: 2.5W x 1 @ 4 欧姆
电源电压: 2.5 V ~ 5.5 V
特点: 消除爆音,差分输入,PWM,短路和热保护
安装类型: 表面贴装
供应商设备封装: *
封装/外壳: 8-UFDFN 裸露焊盘
包装: 带卷 (TR)
6/14
BD5632NUX, BD5634NUX, BD5638NUX
www.rohm.com
2010.06 - Rev.A
2010 ROHM Co., Ltd. All rights reserved.
Technical Note
Evaluation board Parts List
Qty.
Item
Description
SMD Size
Manufacturer / Part Number
2
C1, C2
Capacitor, 0.47μF
0603
Murata
GRM188R71A474KA01D
1
C3
Capacitor, 10μF
A (3216)
ROHM
TCFGA1A106M8R
1
S1
Slide Switch
4mm X 10.2mm
NKK
SS-12SDP2
1
U1
IC
Mono Class-D audio amplifier
2.0mm X 3.0mm
VSON Package
ROHM
BD5632/34/38NUX
1
PCB1
Printed-circuit board,
BD5632/34/38NUX EVM
Description of External components
1. Input coupling capacitor (C1, C2)
It makes an Input coupling capacitor 0.47F.
It sets cutoff frequency fc by the following formula by input coupling capacitor C1 (=C2) and input impedance Ri.
In case of C1 (=C2) =0.47F
BD5632NUX Ri =100k : fc=3.5Hz
BD5634NUX Ri =50k : fc=7Hz
BD5638NUX Ri =25k : fc=14Hz
2. Power decoupling capacitor (C3)
It makes a power decoupling capacitor 10F.
When making capacitance of the power decoupling capacitor, there is an influence in the Audio characteristic.
When making small, careful for the Audio characteristic at the actual application.
[Hz]
1
C
Ri
2
1
fc
π
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