TS3DV642 HSPICE model not converging

Adam Torma

Other Parts Discussed in Thread: TS3DV642

Our customer uses simulation software which is Synopsys's HSPICE.
Our customer simulated "TS3DV642.sp" with Synopsys's HSPICE, it shows "no convergence in operating point",
at last the program had been forced termination as following attachment file.
1007.20141022_TS3DV642_Testbench result.pdf
If you know, could you let know us what this cause?

Thank you,

Adam

over 10 years ago

0 Eric Kim- DSS over 10 years ago

TI__Intellectual 2140 points

Hi Adam,

Thanks for your inquiry.

Unfortunately, this is a tool specific issue that we do not have expertise with. We believe this can be best addressed by Synopsys.

On a side note, there is a test bench and relevant file available (put together by the product line team) that the customer should be able to run a successful simulation with, in case the customer is unaware of:

http://www.ti.com/product/TS3DV642/toolssoftware

Regards,

-Eric Kim (WEBENCH Design Center)

0 Hirotaka Matsumoto over 10 years ago in reply to Eric Kim- DSS

Guru 27585 points

Eric san,

I asked Adam san to contribute this our's issue.
Would you mind if I confirm your contribution?

<Confirmation>
You don't have any correct information, but you believe that this spice is fixed to for Synopsys, don't you?
Our customer got the spice model from your URL.

Kind regards,

Hirotaka Matsumoto

0 Eric Kim- DSS over 10 years ago in reply to Hirotaka Matsumoto

TI__Intellectual 2140 points

Matsumoto-san,

Yes, we believe the model and testbench from the URL should be correct ones for simulations.

Thanks you,

-Eric Kim (WEBENCH Design Center)

0 Hirotaka Matsumoto over 10 years ago in reply to Eric Kim- DSS

Guru 27585 points

Eric san,

Thank you for your update!
We'd like to confirm one point.

Could you confirm TS3DV642 Hspice model using Synopsys's software?
Please let know us above.

Kind regards,

Hirotaka Matsumoto

0 John Miller - Sensing over 10 years ago in reply to Hirotaka Matsumoto

TI__Mastermind 40295 points

Hirotaka-san,

It appears the test bench is not running successfully. The model was originally developed by product line and will require a further assistance from them. Your inquiry has been moved to a forum supported by the product experts.

Regards,
John

0 Adam Torma over 10 years ago in reply to John Miller - Sensing

TI__Mastermind 45575 points

John,

Could you elaborate on what error your are getting with the HSPICE model to send to the design team so they can make the fix?

Thank you,

Adam

0 Eric Kim- DSS over 10 years ago in reply to Adam Torma

TI__Intellectual 2140 points

Hi Adam,

Attached please find a file generated while simulating the test bench and relevant files (all available on the product folder web). It appears to confirm the issue reported by customer. It would be best if design team can re-verify this.

Regards,

-Eric Kim (WEBENCH Design Center)

Fullscreen 4401.TS3DV642_tb.txt Download

***** HSPICE -- E-2010.12 32-BIT (Nov 20 2010) linux ******
 Input File: TS3DV642.sp
 lic:
 lic: FLEXlm: v10.8
 lic: USER:   ekim                 HOSTNAME: dlewz2509.dal.design.ti.com
 lic: HOSTID: c81f66dfdcf5         PID:      5783
 lic: Using FLEXlm license file:
 lic: 26585@flames-ind5.india.ti.com
 lic: Checkout 1 hspice
 lic: License/Maintenance for hspice will expire on 31-oct-2014/2013.12
 lic: 9(in_use)/142(total) FLOATING license(s) on SERVER flames-ind5.india.ti.co
 lic:
 init: begin read circuit files,  cpu clock=  3.22E+00
       option search   = /apps/synopsys/hspice/2010.12/hspice
       option runlvl
       option artist   =     2.00
       option imax     =     10.0
       option imin     =    0.100
       option ingold   =     2.00
       option lvltim   =     3.00
       option measou   =     1.00
       option method   = gear
       option parhie   = local
       option post_v   =    9.601E+03
       option psf      =     2.00
       option scale    =    1.000E-06
 init: end read circuit files,  cpu clock=  3.26E+00 memory=   1128 kb
 init: begin check errors,  cpu clock=  3.26E+00
 init: end check errors,  cpu clock=  3.44E+00 memory=  12841 kb
 init: begin setup matrix, pivot=     0 cpu clock=  3.44E+00
       establish matrix -- done,  cpu clock=  3.45E+00 memory=  12995 kb
       re-order matrix -- done,  cpu clock=  3.52E+00 memory=  12995 kb
 init: end setup matrix,  cpu clock=  3.52E+00 memory=  14703 kb
 dcop: begin dcop,  cpu clock=  3.54E+00
 dcop: begin pseudo transient
 dcop: ...failed with iteration exhausted
 dcop: end pseudo transient
 dcop: begin gshunt ramping
 dcop: gshunt =      0.1000000E-03, gmin =      0.1000000E-11, iter =       48
 dcop: gshunt =      0.1000000E-04, gmin =      0.1000000E-11, iter =       52
 dcop: gshunt =      0.1000000E-05, gmin =      0.1000000E-11, iter =       43
 dcop: gshunt =      0.1000000E-06, gmin =      0.1000000E-11, iter =      109
 dcop: gshunt =      0.1000000E-06, gmin =      0.9500000E-11, iter =       65
 dcop: gshunt =      0.5050000E-06, gmin =      0.9500000E-11, iter =       11
 dcop: gshunt =      0.2550250E-06, gmin =      0.9500000E-11, iter =       26
 dcop: gshunt =      0.2550250E-06, gmin =      0.4750000E-11, iter =        4
 dcop: gshunt =      0.1287876E-06, gmin =      0.4750000E-11, iter =       48
 dcop: gshunt =      0.1287876E-06, gmin =      0.4512500E-10, iter =      189
 dcop: gshunt =      0.1855944E-06, gmin =      0.4512500E-10, iter =       14
 dcop: gshunt =      0.1350663E-06, gmin =      0.4512500E-10, iter =        7
 dcop: gshunt =      0.1350663E-06, gmin =      0.2256250E-10, iter =        4
 dcop: gshunt =      0.9829453E-07, gmin =      0.2256250E-10, iter =        8
 dcop: gshunt =      0.9829453E-07, gmin =      0.1128125E-10, iter =        4
 dcop: gshunt =      0.7153384E-07, gmin =      0.1128125E-10, iter =        9
 dcop: gshunt =      0.7153384E-07, gmin =      0.5640625E-11, iter =        4
 dcop: gshunt =      0.4232121E-07, gmin =      0.5640625E-11, iter =      200
 dcop: gshunt =      0.4232121E-07, gmin =      0.5358594E-10, iter =      155
 dcop: gshunt =      0.5546689E-07, gmin =      0.5358594E-10, iter =       13
 dcop: gshunt =      0.4300868E-07, gmin =      0.5358594E-10, iter =       42
 dcop: gshunt =      0.4300868E-07, gmin =      0.5090664E-09, iter =      118
 dcop: gshunt =      0.4861488E-07, gmin =      0.5090664E-09, iter =      141
 dcop: gshunt =      0.4861488E-07, gmin =      0.4836131E-08, iter =       20
 dcop: gshunt =      0.4260931E-07, gmin =      0.4836131E-08, iter =      117
 dcop: gshunt =      0.4260931E-07, gmin =      0.4594324E-07, iter =       56
 dcop: gshunt =      0.4531182E-07, gmin =      0.4594324E-07, iter =       25
 dcop: gshunt =      0.4531182E-07, gmin =      0.4364608E-06, iter =       32
 dcop: gshunt =      0.4223318E-07, gmin =      0.4364608E-06, iter =        7
 dcop: gshunt =      0.4223318E-07, gmin =      0.2182304E-06, iter =       53
 dcop: gshunt =      0.4223318E-07, gmin =      0.1000000E-05, iter =       11
 dcop: gshunt =      0.3936371E-07, gmin =      0.1000000E-05, iter =        5
 dcop: gshunt =      0.3936371E-07, gmin =      0.5000000E-06, iter =       21
 dcop: gshunt =      0.3668921E-07, gmin =      0.5000000E-06, iter =        5
 dcop: gshunt =      0.3668921E-07, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.3668921E-07, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.3419642E-07, gmin =      0.1000000E-05, iter =        5
 dcop: gshunt =      0.3419642E-07, gmin =      0.5000000E-06, iter =       17
 dcop: gshunt =      0.3187300E-07, gmin =      0.5000000E-06, iter =        5
 dcop: gshunt =      0.3187300E-07, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.3187300E-07, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.2970744E-07, gmin =      0.1000000E-05, iter =        5
 dcop: gshunt =      0.2970744E-07, gmin =      0.5000000E-06, iter =       42
 dcop: gshunt =      0.2768901E-07, gmin =      0.5000000E-06, iter =        5
 dcop: gshunt =      0.2768901E-07, gmin =      0.2500000E-06, iter =       28
 dcop: gshunt =      0.2768901E-07, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.2580773E-07, gmin =      0.1000000E-05, iter =        5
 dcop: gshunt =      0.2580773E-07, gmin =      0.5000000E-06, iter =       24
 dcop: gshunt =      0.2405426E-07, gmin =      0.5000000E-06, iter =        5
 dcop: gshunt =      0.2405426E-07, gmin =      0.2500000E-06, iter =       42
 dcop: gshunt =      0.2405426E-07, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.2241994E-07, gmin =      0.1000000E-05, iter =        5
 dcop: gshunt =      0.2241994E-07, gmin =      0.5000000E-06, iter =       14
 dcop: gshunt =      0.2089665E-07, gmin =      0.5000000E-06, iter =        5
 dcop: gshunt =      0.2089665E-07, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.2089665E-07, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.1947686E-07, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.1947686E-07, gmin =      0.5000000E-06, iter =       11
 dcop: gshunt =      0.1815354E-07, gmin =      0.5000000E-06, iter =        5
 dcop: gshunt =      0.1815354E-07, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.1815354E-07, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.1692012E-07, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.1692012E-07, gmin =      0.5000000E-06, iter =       11
 dcop: gshunt =      0.1577051E-07, gmin =      0.5000000E-06, iter =        5
 dcop: gshunt =      0.1577051E-07, gmin =      0.2500000E-06, iter =      128
 dcop: gshunt =      0.1577051E-07, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.1469901E-07, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.1469901E-07, gmin =      0.5000000E-06, iter =       14
 dcop: gshunt =      0.1370031E-07, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.1370031E-07, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.1370031E-07, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.1276946E-07, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.1276946E-07, gmin =      0.5000000E-06, iter =       14
 dcop: gshunt =      0.1190186E-07, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.1190186E-07, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.1190186E-07, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.1109321E-07, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.1109321E-07, gmin =      0.5000000E-06, iter =       14
 dcop: gshunt =      0.1033950E-07, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.1033950E-07, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.1033950E-07, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.9636999E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.9636999E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.8982228E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.8982228E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.8982228E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.8371945E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.8371945E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.7803127E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.7803127E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.7803127E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.7272956E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.7272956E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.6778807E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.6778807E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.6778807E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.6318231E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.6318231E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.5888949E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.5888949E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.5888949E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.5488834E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.5488834E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.5115904E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.5115904E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.5115904E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.4768312E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.4768312E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.4444337E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.4444337E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.4444337E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.4142373E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.4142373E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.3860926E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.3860926E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.3860926E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.3598602E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.3598602E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.3354101E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.3354101E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.3354101E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.3126212E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.3126212E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.2913806E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.2913806E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.2913806E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.2715832E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.2715832E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.2531310E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.2531310E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.2531310E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.2359324E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.2359324E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.2199023E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.2199023E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.2199023E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.2049614E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.2049614E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.1910356E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.1910356E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.1910356E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.1780560E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.1780560E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.1659583E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.1659583E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.1659583E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.1546825E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.1546825E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.1441729E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.1441729E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.1441729E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.1343773E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.1343773E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.1252472E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.1252472E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.1252472E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.1167375E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.1167375E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.1088060E-08, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.1088060E-08, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.1088060E-08, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.1014133E-08, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.1014133E-08, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.9452295E-09, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.9452295E-09, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.9452295E-09, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.8810074E-09, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.8810074E-09, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.8211488E-09, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.8211488E-09, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.8211488E-09, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.7653571E-09, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.7653571E-09, gmin =      0.5000000E-06, iter =       13
 dcop: gshunt =      0.7133562E-09, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.7133562E-09, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.7133562E-09, gmin =      0.1000000E-05, iter =       10
 dcop: gshunt =      0.6648883E-09, gmin =      0.1000000E-05, iter =        4
 dcop: gshunt =      0.6648883E-09, gmin =      0.5000000E-06, iter =       12
 dcop: gshunt =      0.6197136E-09, gmin =      0.5000000E-06, iter =        4
 dcop: gshunt =      0.6197136E-09, gmin =      0.2500000E-06, iter =      200
 dcop: gshunt =      0.1000000E-03
 dcop: gshunt =      0.1000000E-04
 dcop: gshunt =      0.1000000E-05
 dcop: gshunt =      0.1000000E-06
 dcop: gshunt =      0.5050000E-06
 dcop: gshunt =      0.1300375E-06
 dcop: gshunt =      0.2987706E-06
 dcop: gshunt =      0.1157549E-06
 dcop: gshunt =      0.1981120E-06
 dcop: gshunt =      0.2434084E-06
 dcop: gshunt =      0.1983048E-06
 dcop: gshunt =      0.1615589E-06
 dcop: gshunt =      0.1316220E-06
 dcop: gshunt =      0.1072324E-06
 dcop: gshunt =      0.7742714E-07
 dcop: gshunt =      0.4514580E-07
 dcop: gshunt =      0.5967240E-07
 dcop: gshunt =      0.4598899E-07
 dcop: gshunt =      0.5214652E-07
 dcop: gshunt =      0.5553317E-07
 dcop: gshunt =      0.5168106E-07
 dcop: gshunt =      0.5341451E-07
 dcop: gshunt =      0.5137668E-07
 dcop: gshunt =      0.5229370E-07
 dcop: gshunt =      0.5279806E-07
 dcop: gshunt =      0.5307546E-07
 dcop: gshunt =      0.5322803E-07
 dcop: gshunt =      0.5304221E-07
 dcop: gshunt =      0.5312583E-07
 dcop: gshunt =      0.5317182E-07
 dcop: gshunt =      0.5319712E-07
 dcop: gshunt =      0.5316622E-07
 dcop: gshunt =      0.5318012E-07
 dcop: gshunt =      0.5316313E-07
 dcop: gshunt =      0.5317078E-07
 dcop: gshunt =      0.5317498E-07
 dcop: gshunt =      0.5316984E-07
 dcop: gshunt =      0.5317216E-07
 dcop: gshunt =      0.5317343E-07
 dcop: gshunt =      0.5317187E-07
 dcop: gshunt =      0.5317257E-07
 dcop: gshunt =      0.5317172E-07
 dcop: gshunt =      0.5317210E-07
 dcop: gshunt =      0.5317231E-07
 dcop: gshunt =      0.5317243E-07
 dcop: gshunt =      0.5317250E-07
 dcop: gshunt =      0.5317253E-07
 dcop: gshunt =      0.5317255E-07
 dcop: gshunt =      0.5317256E-07
 dcop: gshunt =      0.5317257E-07
 dcop: gshunt =      0.5317256E-07
 dcop: gshunt =      0.5317256E-07
 dcop: gshunt =      0.5317256E-07
 dcop: gshunt ramping failed

0 Adam Torma over 10 years ago in reply to Eric Kim- DSS

TI__Mastermind 45575 points

Thank you,

I am sending this over to the design team and they will be looking into it this week.

Adam

0 Hirotaka Matsumoto over 10 years ago in reply to Adam Torma

Guru 27585 points

Adam san,

As furthermore information;

Our customer confirmed Synopsys H-spice again, but they did not work.
So, our customer used other Spice software to simulate, also they didn't get correct wave.

Is it possible to be offered testbench which can confirm MUX operation?

3288.TS3DV642.pdf

The attachment file is the simulation result in case of AWR Microwave Office software.
(SPICE model is the same.)
HSPICE's version which is handled in Microwave Office is E-2010.12-SP2 32-BIT (May 23 2011).
In order to confirm MUX operation, our cutomer tried to insert PRBS into Common Port
to confirm wave at PortA , but they could not the data which they expected.
Even though our cutomer set EN, SEL1, SEL2 correctly, or EN=0, the result was NG.
So, our customer needs testbench which it is possible to MUX operation.
Testbench which attaches model is not connected to any pins which connects differential signal,
it seems that it only observes internal signals variation.

Kind regrds,

Hirotaka Matsumoto

0 Hirotaka Matsumoto over 10 years ago

Guru 27585 points

Hi team,

Because of this spice model failure, our customer can't sumilate their cuircuit,
so the development process will be delayed, as the result, the mass- produce will be delayed.
Finally we may lose customer, or reliance with our customer.

Then, please let know us followings;
-How much of the time do you need to modify?
-Is it not modified at all?
-Is it required a little time to modify?

Kind regards,

Hirotaka Matsumoto

0 Adam Torma over 10 years ago in reply to Hirotaka Matsumoto

TI__Mastermind 45575 points

Hirotaka,

I am sorry for the time it is taking to solve this for you. Most of these test-harnesses are specifically for DC

parameters…like Ron and IDDQ testing. It appears that you are looking to model AC signals, correct? If that is the case this model will not work for your needs.

Adam

0 Hirotaka Matsumoto over 10 years ago in reply to Adam Torma

Guru 27585 points

Adam san,

Thank you for your reply.We got your circumstanse.
Of cource, we need AC - characteristic.

In the first place, the device is suitable for AC - characteristic which the dataheet shows,
but why is the spice model not suitable for AC - characteristic?

So, as our recognition, is it not possible to be fixed soon, is it?

Tha't why our request are follwoings;

<Request1>
Schedule(process) of modification.
For example) you need one week, two weeks, or one month,

<Request2>
If you have DC characteristic, please give us this test bench.

<Question>
Is it possible to operate DC-analysis correctly?

Especially, we and our customer do know follwoing request1.

Kind regards,

Hirotaka Matsumoto

0 Adam Torma over 10 years ago in reply to Hirotaka Matsumoto

TI__Mastermind 45575 points

Hirotaka,

If I can provide you with S-parameters would that be satisfactory to solve your issue?

Adam

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TS3DV642 HSPICE model not converging