您的位置：维库电子市场网 > Datasheet > LM4952TS

LM4952TS Datasheet

  • LM4952TS

  • National Semiconductor [3.1W Stereo-SE Audio Power Amplifie...

  • 713.33KB

  • NSC

阅览下载 纠错 0

扫码查看芯片数据手册

上传产品规格书

PDF预览

LM4952
Application Information
(Continued)
manner, the ground lead of the capacitor connected between
the BYPASS pin and GND should also be connected to the
package鈥檚 grounded tab.
OPTIMIZING CLICK AND POP REDUCTION
PERFORMANCE
The LM4952 contains circuitry that eliminates turn-on and
shutdown transients ("clicks and pops"). For this discussion,
turn-on refers to either applying the power supply voltage or
when the micro-power shutdown mode is deactivated.
As the V
DD
/4 voltage present at the BYPASS pin ramps to its
final value, the LM4952鈥檚 internal amplifiers are muted. Once
the voltage at the BYPASS pin reaches V
DD
/4, the amplifiers
are unmuted.
The gain of the internal amplifiers remains unity until the
voltage on the bypass pin reaches V
DD
/4. As soon as the
voltage on the bypass pin is stable, the device becomes fully
operational and the amplifier outputs are reconnected to
their respective output pins.
In order eliminate "clicks and pops", all capacitors must be
discharged before turn-on. Rapidly switching V
DD
may not
allow the capacitors to fully discharge, which may cause
"clicks and pops".
There is a relationship between the value of C
IN
and
C
BYPASS
that ensures minimum output transient when power
is applied or the shutdown mode is deactivated. Best perfor-
mance is achieved by selecting a C
BYPASS
value that is
greater than twelve times C
IN
鈥檚 value.
RECOMMENDED PRINTED CIRCUIT BOARD LAYOUT
Figure 9 through Figure 11 show the recommended two-
layer PC board layout that is optimized for the TO263-
packaged, SE-configured LM4952 and associated external
components. These circuits are designed for use with an
external 12V supply and 4鈩?min)(SE) speakers.
These circuit boards are easy to use. Apply 12V and ground
to the board鈥檚 V
DD
and GND pads, respectively. Connect a
speaker between the board鈥檚 OUT
A
and OUT
B
outputs and
respective GND pins.
www.national.com
16

LM4952TS 产品属性

  • National Semiconductor (TI)

  • Class-AB

  • 3.8 W x 2 at 4 Ohms

  • 2-Channel Stereo

  • 20 dB

  • 0.08 %

  • 12 V, 15 V

  • + 85 C

  • SMD/SMT

  • TO-263

  • Tube

  • 4 Ohms

  • Single

  • - 40 C

  • Single

  • Single

  • 16 V

  • 9.6 V

LM4952TS相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

©2025 维库电子市场网（www.dzsc.com）　备案号：浙B2-20050339-1 经营许可证：浙B2-20210386版权声明
买家服务热线：0571-85317607 | 买家服务部QQ： QQ:1609526468
卖家服务热线：0571-85317607 | 卖家服务部QQ： QQ:331652727

扫码下载APP，
一键连接广大的电子世界。

在线人工客服

买家服务：
卖家服务：
技术客服：

0571-85317607

网站技术支持

13606545031

客服在线时间周一至周五
9:00-17:30

关注官方微信号，
第一时间获取资讯。

建议反馈
返回顶部

建议反馈

联系人：

联系方式：

按住滑块，拖拽到最右边
>>
感谢您向阿库提出的宝贵意见，您的参与是维库提升服务的动力！意见一经采纳，将有感恩红包奉上哦！

PDF纠错X

投诉电话：0571-85317607 投诉QQ：

如选匿名将无法为您反馈投诉结果，建议实名投诉！