License

Public Domain

Recommend Projects

Demonstrating the EasyEDA LM386 spice subckt model

4 years ago 5589
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
  • Comments

Description

A comparison between the EasyEDA LM386 improved spice model and the "NO-FRILLS LM386 MODEL" by Dave Dilatush 5/30/95.

The EasyEDA LM386EE/NJM386EE spice subcircuit model is a new model developed for EasyEDA by signality.co.uk

The LM386EE subcircuit is featured in the Tesseract Guitar Practice Amplifier simulation files:

https://easyeda.com/example/Tesseract_Guitar_Practice_Amp_simulation_files-H0ca8IFDB

To copy the subckt netlist, open the schematic in the editor and do:

Super Menu > Miscellaneous > Netlist for Document > Spice...

or simply download a copy of the LM386EE.sub.txt attachment.

The subckt is based on the schematic shown in the NJM386 datasheet:

http://www.njr.com/semicon/PDF/NJM386_E.pdf

Specifications are based on the above and:

http://www.ti.com/lit/ds/symlink/lm386.pdf

The EasyEDA spice subcircuit offers improved modelling of output voltage self-centring, typical quiescent and input bias currents and unloaded bandwidth.

Output swing is optimistic with < 8 Ohm load resistances although the reason for this is unclear.

To help improve the model in this area, if anyone is willing to share scope traces of the LM386 output voltage driving into clipping with loads of between 4 - 16 Ohms, please contact:

[email protected]

Documents

Demonstrating the EasyEDA LM386 spice subckt model

A high gain bandpass filter

BOM

ID Name Designator Footprint Quantity
1 8 RSPKR 1X02 1
2 220u C3 CP_8X13MM 1
3 10k RVOL TRIM_POT_PTH 1
4 SINE(0 0.2 1k 0.5m) AC 1 0 V1 2P-5.0 1
5 9 V2 2P-5.0 1
6 LM386EE U1 DIP 1
7 1m R3 R3 1
8 R='state*1G+R1val' R1 R3 1
9 R='(1-state)*1G+R2val' R2 R3 1
10 33n C2 1206 1
11 10u C1,C3 CP_8X13MM 2
12 SINE(0 0.4 1k 0.5m) AC 1 0 V1 2P-5.0 1
13 1k RLOAD R3 1
14 4.7n C1 1206 1
15 2.2k RFB R3 1
16 3.3 RV1 R3 1
17 100u C2 CP_8X13MM 1
18 1m L1 INDUCTOR-1206 1
19 220 R2 R3 1
20 100n C4,C5 1206 2
21 10 R1 R3 1

Attachments

Filename Download
LM386EE.sub.txt

Members

Success
The owner does not allow comments in this project now

Comments (0)

goToTop
你现在访问的是EasyEDA海外版,使用建立访问速度更快的国内版 https://lceda.cn(需要重新注册)
如果需要转移工程请在个人中心 - 工程 - 工程高级设置 - 下载工程,下载后在https://lceda.cn/editor 打开保存即可。
有问题联系QQ 3001956291 不再提醒
svg-battery svg-battery-wifi svg-books svg-more svg-paste svg-pencil svg-plant svg-ruler svg-share svg-user svg-logo-cn svg-double-arrow
We use cookies to offer you a better experience. Detailed information on the use of cookies on this website is provided in our Privacy Policy. By using this site, you consent to the use of our cookies.