LM4893MA Datasheet

PDF预览

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22

LM4893

Application Information

(Continued)

20038088

FIGURE 3. HIGHER GAIN AUDIO AMPLIFIER

nates possible high frequency oscillations. Care should be

taken when calculating the -3dB frequency in that an incor-

rect combination of R

3

and C

4

will cause rolloff before

20kHz. A typical combination of feedback resistor and ca-

pacitor that will not produce audio band high frequency rolloff

is R

3

= 20k鈩?and C

4

= 25pf. These components result in a

-3dB point of approximately 320 kHz.

The LM4893 is unity-gain stable and requires no external

components besides gain-setting resistors, an input coupling

capacitor, and proper supply bypassing in the typical appli-

cation. However, if a closed-loop differential gain of greater

than 10 is required, a feedback capacitor (C4) may be

needed as shown in Figure 2 to bandwidth limit the amplifier.

This feedback capacitor creates a low pass filter that elimi-

www.national.com

14

prev next

LM4893MA相关型号PDF文件下载

• 型号
  版本
  描述
  厂商
  下载
• LM4801
  英文版
  National Semiconductor [1W Stereo Audio Amplifier Plus Adju...
  NSC
  LM4801
• LM4804
  英文版
  Low Voltage High Power Audio Power Amplifier
  NSC
  LM4804
• LM4804
  英文版
  Low Voltage High Power Audio Power Amplifier
  
  LM4804
• LM4805
  英文版
  3V, 1W Boosted Boomer
  NSC
  LM4805
• LM4805
  英文版
  Low Voltage High Power Audio Power Ampliier
  
  LM4805
• LM4808
  英文版
  Dual 105 mW Headphone Amplifier
  NSC
  LM4808
• LM4808
  英文版
  LM4808 Dual 105 mW Headphone Amplifier
  
  LM4808
• LM4809
  英文版
  Dual 105mW Headphone Amplifier with Active-Low Shutdown Mode
  NSC
  LM4809
• LM4809
  英文版
  LM4809 Dual 105mW Headphone Amplifier with Active-Low Shutdo...
  NATIONAL
  LM4809
• LM4810
  英文版
  Dual 105mW Headphone Amplifier with Active-High Shutdown Mod...
  NSC
  LM4810
• LM4810
  英文版
  LM4810 Dual 105mW Headphone Amplifier with Active-High Shutd...
  NATIONAL
  LM4810
• LM4811
  英文版
  Dual 105mW Headphone Amplifier with Digital Volume
  NSC
  LM4811
• LM4811
  英文版
  Dual 105mW Headphone Amplifier
  LM4811
• LM4816
  英文版
  National Semiconductor [1W Stereo Audio Amplifier + Adjusta...
  NSC
  LM4816
• LM4817
  英文版
  1W Stereo Audio Amplifier Plus Adjustable Output Limiter Plu...
  NSC
  LM4817
• LM4817
  英文版
  1W Stereo Audio Amplifier Plus Adjustable Output Limiter Plu...
  NATIONAL
  LM4817
• LM4818
  英文版
  350mW Audio Power Amplifier with Shutdown Mode
  NSC
  LM4818
• LM4818
  英文版
  350mW Audio Power Amplifier with Shutdown Mode
  NATIONAL
  LM4818
• LM4819
  英文版
  350mW Audio Power Amplifier with Shutdown Mode
  NSC
  LM4819
• LM4819
  英文版
  350mW Audio Power Amplifier with Shutdown Mode
  NATIONAL
  LM4819

您可能感兴趣的PDF文件资料

• LM4871M
• LM4890MX/NOPB
• LM4809M
• LM4871
• LM4880
• LM4890
• LM4890IBL
• LM48511
• LM4898
• LM4811
• LM4855LQ
• LM4801

热门IC型号推荐

• LM1207N
• LBZX84C5V1LT1G
• L6571AD013TR
• LM833MX
• LM358MX/NOPB
• LTV-357T-B
• LP6218B6F
• LM308AN
• LT1637IS8
• LM5576MH
• LM285D-2.5
• LTC1625CS