Electret micro Spice

Use a subcircuit... make from electret data sheet.

...Jim Thompson

-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | |

| 1962 | America: Land of the Free, Because of the Brave

Jim Thompson said : "Use a subcircuit... make from electret data sheet"

This is exactly that I hope to obtain : a subckt of electret micro. I don't know real it.

"Jim Thompson" a écrit dans le message de news: snipped-for-privacy@4ax.com...

As in (diaphragm only, needs FET, of your choice, added)....

*** EDITED for PSpice by JET, 7/7/2005 *** *M154_Correlated - 8.63um Effective Gap, 45um Vent Holes *

• .PARAM VBIAS = 4.2

• .PARAM PHI = {0.07439*VBIAS}

*

• V_NOISE MIC_IN_PLUS MIC_IN_MINUS SIN(0 {1/PHI} 1000) AC {1/PHI}

• XSINGLE_DIAPHRAGM_1 BACKVOLUME MIC_IN_PLUS GND MIC SINGLE_DIAPHRAGM

• C_BV BACKVOLUME MIC_IN_MINUS {3.5123e-014*PHI**2}

• .SUBCKT SINGLE_DIAPHRAGM IN_MINUS IN_PLUS OUT_MINUS OUT_PLUS

• .PARAM VBIAS = 4.2

.PARAM PHI = {0.07439*VBIAS} C_O OUT_PLUS OUT_MINUS {1.5278e-013} C_P_ANCHOR OUT_PLUS OUT_MINUS {1.65e-013} C_D NET3 OUT_PLUS {1.2622e-014*PHI**2} L_D NET1 NET3 {19029.7355/PHI**2} L_L NET1 NET4 {34.9782/PHI**2} R_L NET4 OUT_MINUS {14453781512.605/PHI**2} R_G OUT_MINUS NET5 {97987627.0912/PHI**2} R_V NET6 NET7 {103327939.9914/PHI**2} L_G NET5 NET6 {313.025/PHI**2} L_V NET7 IN_MINUS {543.2099/PHI**2} L_R IN_PLUS NET1 {1038.0656/PHI**2} ** R_R NET1 NET2 {0/PHI**2} ; HUH? ...Renamed NET2 = NET1

• .ENDS SINGLE_DIAPHRAGM

** As is, no warranties, or other assistance available ;-)

...Jim Thompson

--
|  James E.Thompson, P.E.                           |    mens     |
|  Analog Innovations, Inc.                         |     et      |
|  Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
|  Phoenix, Arizona            Voice:(480)460-2350  |             |
|  E-mail Address at Website     Fax:(480)460-2142  |  Brass Rat  |
|       http://www.analog-innovations.com           |    1962     |
             
         America: Land of the Free, Because of the Brave