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From: "Edward Rawde" <invalid@invalid.invalid>
Newsgroups: sci.electronics.design
Subject: Re: Fast monostable with a transistpor array
Date: Fri, 14 Jun 2024 11:08:56 -0400
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"john larkin" <jl@650pot.com> wrote in message news:hilo6j9dgctalpiu4v09rpdavf6fetm1cv@4ax.com...
> On Thu, 13 Jun 2024 23:25:37 -0400, "Edward Rawde"
> <invalid@invalid.invalid> wrote:
>
>>"Bill Sloman" <bill.sloman@ieee.org> wrote in message news:v4f2nm$2augj$1@dont-email.me...
>>> One option John Larjkin doesn't seem to have explored is using Renesas HFA3096 five transistor array as basis for his 
>>> mononstable
>>> and level shifter.
>>>
>>> It offers three 8GHz NPN parts and two 5.5GHz PNP parts in a single array.
>>>
>>> https://www.renesas.com/us/en/document/dst/hfa3046-hfa3096-hfa3127-hfa3128-datasheet?r=494216
>>>
>>
>>I put the NPN model parameters into a circuit designed by yourself.
>>It's late now but I got as far as Time step too small.
>>
>
> That is neither fast nor a monostable.

Yes ok it's an astable and certainly not intended to be fast.
It was intended only to see if the model worked. Nothing more.

>
> There's no reason to use many-GHz parts in micropower circuits. One
> reason is that the sim breaks.
>
> I do wish people would comment Spice sims properly, with author, date,
> and what-the-hell-this-actually-is-supposed-to-do.
>
>
> I wonder what happened to James. I think all the flaming here drove
> him away. James was fun. He always skis in short pants.
>
>
>
>>Version 4
>>SHEET 1 2848 1304
>>WIRE -592 528 -752 528
>>WIRE -240 528 -592 528
>>WIRE -64 528 -240 528
>>WIRE 32 528 -64 528
>>WIRE -64 544 -64 528
>>WIRE 32 560 32 528
>>WIRE -592 576 -592 528
>>WIRE -240 592 -240 528
>>WIRE -752 624 -752 528
>>WIRE -64 656 -64 624
>>WIRE -592 704 -592 656
>>WIRE -464 704 -592 704
>>WIRE -384 704 -464 704
>>WIRE -240 704 -240 672
>>WIRE -240 704 -320 704
>>WIRE -128 704 -240 704
>>WIRE -464 736 -464 704
>>WIRE -240 736 -240 704
>>WIRE -752 784 -752 704
>>WIRE -64 784 -64 752
>>WIRE 32 784 32 640
>>WIRE 32 784 -64 784
>>WIRE -592 832 -592 704
>>WIRE 32 832 32 784
>>WIRE -512 880 -528 880
>>WIRE -464 880 -464 816
>>WIRE -464 880 -512 880
>>WIRE -448 880 -464 880
>>WIRE -384 880 -320 704
>>WIRE -320 880 -384 704
>>WIRE -240 880 -240 816
>>WIRE -240 880 -256 880
>>WIRE -208 880 -240 880
>>WIRE -32 880 -208 880
>>WIRE -208 912 -208 880
>>WIRE -512 928 -512 880
>>WIRE -592 1008 -592 928
>>WIRE -512 1008 -512 992
>>WIRE -512 1008 -592 1008
>>WIRE -208 1008 -208 976
>>WIRE 32 1008 32 928
>>WIRE 32 1008 -208 1008
>>WIRE -592 1040 -592 1008
>>WIRE 32 1040 32 1008
>>FLAG 32 1040 0
>>FLAG -592 1040 0
>>FLAG -752 784 0
>>SYMBOL RES -608 560 R0
>>SYMATTR InstName R1
>>SYMATTR Value 1Meg
>>SYMBOL res 16 544 R0
>>SYMATTR InstName R10
>>SYMATTR Value 2Meg
>>SYMBOL cap -384 864 R90
>>WINDOW 0 0 32 VBottom 2
>>WINDOW 3 32 32 VTop 2
>>SYMATTR InstName C1
>>SYMATTR Value 1.5p
>>SYMBOL cap -256 864 R90
>>WINDOW 0 0 32 VBottom 2
>>WINDOW 3 32 32 VTop 2
>>SYMATTR InstName C2
>>SYMATTR Value 1.5p
>>SYMBOL VOLTAGE -752 608 R0
>>SYMATTR InstName V1
>>SYMATTR Value 5
>>SYMBOL npn -32 832 R0
>>SYMATTR InstName Q1
>>SYMATTR Value NUHFARRY
>>SYMBOL npn -528 832 M0
>>SYMATTR InstName Q2
>>SYMATTR Value NUHFARRY
>>SYMBOL res -256 720 R0
>>SYMATTR InstName R3
>>SYMATTR Value 4.7Meg
>>SYMBOL res -480 720 R0
>>SYMATTR InstName R4
>>SYMATTR Value 4.701Meg
>>SYMBOL cap -528 928 R0
>>SYMATTR InstName C3
>>SYMATTR Value 0.68p
>>SYMBOL cap -224 912 R0
>>SYMATTR InstName C4
>>SYMATTR Value 0.68p
>>SYMBOL npn -128 656 R0
>>SYMATTR InstName Q10
>>SYMATTR Value NUHFARRY
>>SYMBOL RES -256 576 R0
>>WINDOW 3 30 76 Left 2
>>SYMATTR Value 1Meg
>>SYMATTR InstName R2
>>SYMBOL RES -48 640 R180
>>WINDOW 0 36 76 Left 2
>>WINDOW 3 36 40 Left 2
>>SYMATTR InstName R11
>>SYMATTR Value 1Meg
>>TEXT -768 1176 Left 0 !.tran 0 150u 50u startup
>>TEXT -776 1112 Left 0 ;This example schematic is supplied for informational/educational purposes only.\nJuly 7, 2008 by Bill 
>>Sloman
>>(but blame the Q10 output stage on James Arthur).
>>TEXT -480 1176 Left 0 !.model NUHFARRY NPN\n+ (IS = 1.840E - 16 XTI = 3.000E + 00 EG = 1.110E + 00 VAF = 7.200E + 01\n+ VAR = 
>>4.500E
>>+ 00 BF = 1.036E + 02 ISE = 1.686E - 19 NE = 1.400E + 00\n+ IKF = 5.400E - 02 XTB = 0.000E + 00 BR = 1.000E + 01 ISC = 1.605E -
>>14\n+ NC = 1.800E + 00 IKR = 5.400E - 02 RC = 1.140E + 01 CJC = 3.980E - 13\n+ MJC = 2.400E - 01 VJC = 9.700E - 01 FC = 5.000E - 
>>01
>>CJE = 2.400E - 13\n+ MJE = 5.100E- 01 VJE = 8.690E - 01 TR = 4.000E - 09 TF = 10.51E - 12\n+ ITF = 3.500E - 02 XTF = 2.300E + 00 
>>VTF
>>= 3.500E + 00 PTF = 0.000E + 00\n+ XCJC = 9.000E - 01 CJS = 1.150E - 13 VJS = 7.500E - 01 MJS = 0.000E + 00\n+ RE = 1.848E + 00 RB 
>>=
>>5.007E + 01 RBM = 1.974E + 00 KF = 0.000E + 00\n+ AF = 1.000E + 00)
>>TEXT 112 640 Left 0 ;Q2's collector is loaded by C2,\nlimiting risetime. Q10 isolates\nQ1's collector, allowing that node\nto 
>>charge
>>much more rapidly.\n \nQ10 doubles as a common-base\namplifier stage, further squaring up the\noutput from Q10's collector.\n 
>>\nThe
>>new output is taken from\nQ10's collector.\n \nJames Arthur, 9-Jul-2008
>>