Rev Author Line No. Line
3772 jacho 1 EESchema Schematic File Version 2
2 LIBS:power
3 LIBS:device
4 LIBS:transistors
5 LIBS:conn
6 LIBS:linear
7 LIBS:regul
8 LIBS:74xx
9 LIBS:cmos4000
10 LIBS:adc-dac
11 LIBS:memory
12 LIBS:xilinx
13 LIBS:special
14 LIBS:microcontrollers
15 LIBS:dsp
16 LIBS:microchip
17 LIBS:analog_switches
18 LIBS:motorola
19 LIBS:texas
20 LIBS:intel
21 LIBS:audio
22 LIBS:interface
23 LIBS:digital-audio
24 LIBS:philips
25 LIBS:display
26 LIBS:cypress
27 LIBS:siliconi
28 LIBS:opto
29 LIBS:atmel
30 LIBS:contrib
31 LIBS:valves
32 LIBS:MLAB_IO
33 LIBS:MLAB_T
34 LIBS:Jumpers
35 LIBS:PCRD01A-cache
36 EELAYER 24 0
37 EELAYER END
38 $Descr A4 11693 8268
39 encoding utf-8
40 Sheet 1 1
41 Title ""
42 Date ""
43 Rev ""
44 Comp ""
45 Comment1 ""
46 Comment2 ""
47 Comment3 ""
48 Comment4 ""
49 $EndDescr
50 $Comp
51 L R R?
52 U 1 1 547633B6
53 P 1550 3500
54 F 0 "R?" V 1630 3500 40 0000 C CNN
55 F 1 "4k7" V 1557 3501 40 0000 C CNN
56 F 2 "" V 1480 3500 30 0000 C CNN
57 F 3 "" H 1550 3500 30 0000 C CNN
58 1 1550 3500
59  
60 $EndComp
61 $Comp
62 L R R?
63 U 1 1 547634EB
64 P 1550 4000
65 F 0 "R?" V 1630 4000 40 0000 C CNN
66 F 1 "4k7" V 1557 4001 40 0000 C CNN
67 F 2 "" V 1480 4000 30 0000 C CNN
68 F 3 "" H 1550 4000 30 0000 C CNN
69 1 1550 4000
70  
71 $EndComp
72 $Comp
73 L C C?
74 U 1 1 5476354E
75 P 2000 3750
76 F 0 "C?" H 2000 3850 40 0000 L CNN
77 F 1 "4M7" H 2006 3665 40 0000 L CNN
78 F 2 "" H 2038 3600 30 0000 C CNN
79 F 3 "" H 2000 3750 60 0000 C CNN
80 1 2000 3750
81 1 0 0 -1
82 $EndComp
83 $Comp
84 L MAX4475 U?
85 U 1 1 547635BB
86 P 3450 4100
87 F 0 "U?" H 3600 4400 70 0000 C CNN
88 F 1 "MAX4475" H 3600 4300 70 0000 C CNN
89 F 2 "" H 3450 4100 60 0000 C CNN
90 F 3 "" H 3450 4100 60 0000 C CNN
91 1 3450 4100
92 1 0 0 -1
93 $EndComp
94 $Comp
95 L AD8692 U?
96 U 1 1 54763644
97 P 5850 4200
98 F 0 "U?" H 6000 4500 70 0000 C CNN
99 F 1 "AD8692" H 6000 4400 70 0000 C CNN
100 F 2 "" H 5850 4200 60 0000 C CNN
101 F 3 "" H 5850 4200 60 0000 C CNN
102 1 5850 4200
103 1 0 0 -1
104 $EndComp
105 $Comp
106 L AD8692 U?
107 U 2 1 5476368B
3773 jacho 108 P 9100 4100
109 F 0 "U?" H 9250 4400 70 0000 C CNN
110 F 1 "AD8692" H 9250 4300 70 0000 C CNN
111 F 2 "" H 9100 4100 60 0000 C CNN
112 F 3 "" H 9100 4100 60 0000 C CNN
113 2 9100 4100
3772 jacho 114 1 0 0 -1
115 $EndComp
116 $Comp
117 L DIODE D?
118 U 1 1 547637AA
119 P 2500 4000
120 F 0 "D?" H 2500 4100 40 0000 C CNN
121 F 1 "DIODE" H 2500 3900 40 0000 C CNN
122 F 2 "" H 2500 4000 60 0000 C CNN
123 F 3 "" H 2500 4000 60 0000 C CNN
124 1 2500 4000
125 -1 0 0 1
126 $EndComp
127 $Comp
128 L JFET_N Q?
129 U 1 1 54763801
130 P 2150 3050
131 F 0 "Q?" H 2053 3300 70 0000 C CNN
132 F 1 "BF862" H 2003 2803 60 0000 C CNN
133 F 2 "" H 2150 3050 60 0000 C CNN
134 F 3 "" H 2150 3050 60 0000 C CNN
135 1 2150 3050
136 -1 0 0 -1
137 $EndComp
138 $Comp
139 L R R?
140 U 1 1 54763891
141 P 3350 3050
142 F 0 "R?" V 3430 3050 40 0000 C CNN
143 F 1 "2M" V 3357 3051 40 0000 C CNN
144 F 2 "" V 3280 3050 30 0000 C CNN
145 F 3 "" H 3350 3050 30 0000 C CNN
146 1 3350 3050
147  
148 $EndComp
149 $Comp
150 L C C?
151 U 1 1 547638F8
152 P 3300 2800
153 F 0 "C?" H 3300 2900 40 0000 L CNN
154 F 1 "2" H 3306 2715 40 0000 L CNN
155 F 2 "" H 3338 2650 30 0000 C CNN
156 F 3 "" H 3300 2800 60 0000 C CNN
157 1 3300 2800
158  
159 $EndComp
160 $Comp
161 L C C?
162 U 1 1 54763980
163 P 4450 4100
164 F 0 "C?" H 4450 4200 40 0000 L CNN
165 F 1 "330k" H 4456 4015 40 0000 L CNN
166 F 2 "" H 4488 3950 30 0000 C CNN
167 F 3 "" H 4450 4100 60 0000 C CNN
168 1 4450 4100
169  
170 $EndComp
171 $Comp
172 L R R?
173 U 1 1 54763A05
174 P 4850 4450
175 F 0 "R?" V 4930 4450 40 0000 C CNN
176 F 1 "3k3" V 4857 4451 40 0000 C CNN
177 F 2 "" V 4780 4450 30 0000 C CNN
178 F 3 "" H 4850 4450 30 0000 C CNN
179 1 4850 4450
180 -1 0 0 1
181 $EndComp
182 $Comp
183 L R R?
184 U 1 1 54763AA3
185 P 6650 4450
186 F 0 "R?" V 6730 4450 40 0000 C CNN
187 F 1 "10k" V 6657 4451 40 0000 C CNN
188 F 2 "" V 6580 4450 30 0000 C CNN
189 F 3 "" H 6650 4450 30 0000 C CNN
190 1 6650 4450
191 -1 0 0 1
192 $EndComp
193 $Comp
194 L R R?
195 U 1 1 54763AF2
196 P 6650 5150
197 F 0 "R?" V 6730 5150 40 0000 C CNN
198 F 1 "1k5" V 6657 5151 40 0000 C CNN
199 F 2 "" V 6580 5150 30 0000 C CNN
200 F 3 "" H 6650 5150 30 0000 C CNN
201 1 6650 5150
202 -1 0 0 1
203 $EndComp
204 $Comp
205 L C C?
206 U 1 1 54763B36
207 P 7000 4450
208 F 0 "C?" H 7000 4550 40 0000 L CNN
209 F 1 "510" H 7006 4365 40 0000 L CNN
210 F 2 "" H 7038 4300 30 0000 C CNN
211 F 3 "" H 7000 4450 60 0000 C CNN
212 1 7000 4450
213 -1 0 0 1
214 $EndComp
215 $Comp
216 L R R?
217 U 1 1 54763C78
218 P 7450 4200
219 F 0 "R?" V 7530 4200 40 0000 C CNN
220 F 1 "2k4" V 7457 4201 40 0000 C CNN
221 F 2 "" V 7380 4200 30 0000 C CNN
222 F 3 "" H 7450 4200 30 0000 C CNN
223 1 7450 4200
224  
225 $EndComp
226 $Comp
227 L R R?
228 U 1 1 54763CCA
229 P 8150 4200
230 F 0 "R?" V 8230 4200 40 0000 C CNN
231 F 1 "2k2" V 8157 4201 40 0000 C CNN
232 F 2 "" V 8080 4200 30 0000 C CNN
233 F 3 "" H 8150 4200 30 0000 C CNN
234 1 8150 4200
235  
236 $EndComp
237 $Comp
238 L C C?
239 U 1 1 54763D3A
240 P 7800 4450
241 F 0 "C?" H 7800 4550 40 0000 L CNN
242 F 1 "620" H 7806 4365 40 0000 L CNN
243 F 2 "" H 7838 4300 30 0000 C CNN
244 F 3 "" H 7800 4450 60 0000 C CNN
245 1 7800 4450
246 -1 0 0 1
247 $EndComp
248 $Comp
249 L C C?
250 U 1 1 54763DBA
3773 jacho 251 P 9000 3300
252 F 0 "C?" H 9000 3400 40 0000 L CNN
253 F 1 "100" H 9006 3215 40 0000 L CNN
254 F 2 "" H 9038 3150 30 0000 C CNN
255 F 3 "" H 9000 3300 60 0000 C CNN
256 1 9000 3300
3772 jacho 257  
258 $EndComp
259 $Comp
260 L R R?
261 U 1 1 54763E8E
3773 jacho 262 P 8600 3050
263 F 0 "R?" V 8680 3050 40 0000 C CNN
264 F 1 "4k7" V 8607 3051 40 0000 C CNN
265 F 2 "" V 8530 3050 30 0000 C CNN
266 F 3 "" H 8600 3050 30 0000 C CNN
267 1 8600 3050
3772 jacho 268  
269 $EndComp
270 Wire Wire Line
271 1800 3500 2000 3500
272 Wire Wire Line
273 2000 3150 2000 3550
274 Wire Wire Line
275 1800 4000 2300 4000
276 Wire Wire Line
277 2000 4000 2000 3950
278 Connection ~ 2000 3500
279 $Comp
280 L V- #PWR?
281 U 1 1 547641F4
282 P 3350 3550
283 F 0 "#PWR?" H 3350 3650 30 0001 C CNN
284 F 1 "V-" H 3350 3660 30 0000 C CNN
285 F 2 "" H 3350 3550 60 0000 C CNN
286 F 3 "" H 3350 3550 60 0000 C CNN
287 1 3350 3550
288 1 0 0 -1
289 $EndComp
290 Connection ~ 2000 4000
291 Wire Wire Line
292 2700 4000 2950 4000
293 Wire Wire Line
294 2850 2800 2850 4000
295 Connection ~ 2850 4000
296 Wire Wire Line
297 2400 3050 3100 3050
298 Connection ~ 2850 3050
299 Wire Wire Line
300 2850 2800 3100 2800
301 Wire Wire Line
302 3600 3050 4050 3050
303 Wire Wire Line
304 4050 2800 4050 4100
305 Wire Wire Line
306 3950 4100 4250 4100
307 Wire Wire Line
308 3500 2800 4050 2800
309 Connection ~ 4050 3050
310 $Comp
311 L R R?
312 U 1 1 5476469E
313 P 2650 4700
314 F 0 "R?" V 2730 4700 40 0000 C CNN
315 F 1 "2M" V 2657 4701 40 0000 C CNN
316 F 2 "" V 2580 4700 30 0000 C CNN
317 F 3 "" H 2650 4700 30 0000 C CNN
318 1 2650 4700
319 -1 0 0 1
320 $EndComp
321 $Comp
322 L C C?
323 U 1 1 5476470D
324 P 2950 4700
325 F 0 "C?" H 2950 4800 40 0000 L CNN
326 F 1 "12p" H 2956 4615 40 0000 L CNN
327 F 2 "" H 2988 4550 30 0000 C CNN
328 F 3 "" H 2950 4700 60 0000 C CNN
329 1 2950 4700
330 1 0 0 -1
331 $EndComp
332 Wire Wire Line
333 2950 4150 2650 4150
334 Wire Wire Line
335 2650 4150 2650 4450
336 Wire Wire Line
337 2950 4500 2950 4150
338 Connection ~ 2950 4150
339 $Comp
340 L GND #PWR?
341 U 1 1 54764791
342 P 2650 5050
343 F 0 "#PWR?" H 2650 5050 30 0001 C CNN
344 F 1 "GND" H 2650 4980 30 0001 C CNN
345 F 2 "" H 2650 5050 60 0000 C CNN
346 F 3 "" H 2650 5050 60 0000 C CNN
347 1 2650 5050
348 1 0 0 -1
349 $EndComp
350 $Comp
351 L GND #PWR?
352 U 1 1 547647A5
353 P 2950 5050
354 F 0 "#PWR?" H 2950 5050 30 0001 C CNN
355 F 1 "GND" H 2950 4980 30 0001 C CNN
356 F 2 "" H 2950 5050 60 0000 C CNN
357 F 3 "" H 2950 5050 60 0000 C CNN
358 1 2950 5050
359 1 0 0 -1
360 $EndComp
361 Wire Wire Line
362 2650 5050 2650 4950
363 Wire Wire Line
364 2950 5050 2950 4900
365 Wire Wire Line
366 3350 3550 3350 3700
367 Wire Wire Line
368 3350 4500 3350 4600
369 $Comp
370 L V+ #PWR?
371 U 1 1 54764B7E
372 P 3350 4600
373 F 0 "#PWR?" H 3350 4700 30 0001 C CNN
374 F 1 "V+" H 3350 4710 30 0000 C CNN
375 F 2 "" H 3350 4600 60 0000 C CNN
376 F 3 "" H 3350 4600 60 0000 C CNN
377 1 3350 4600
378 -1 0 0 1
379 $EndComp
380 $Comp
381 L V+ #PWR?
382 U 1 1 54764D10
383 P 2000 2650
384 F 0 "#PWR?" H 2000 2750 30 0001 C CNN
385 F 1 "V+" H 2000 2760 30 0000 C CNN
386 F 2 "" H 2000 2650 60 0000 C CNN
387 F 3 "" H 2000 2650 60 0000 C CNN
388 1 2000 2650
389 1 0 0 -1
390 $EndComp
391 Wire Wire Line
392 2000 2700 2000 2650
393 Wire Wire Line
394 5350 4300 5350 4800
395 Wire Wire Line
396 5350 4800 7000 4800
397 Wire Wire Line
398 6650 4700 6650 4900
399 Connection ~ 6650 4800
400 Wire Wire Line
401 6350 4200 7200 4200
402 Wire Wire Line
403 7000 4200 7000 4250
404 Connection ~ 6650 4200
405 Wire Wire Line
406 7000 4800 7000 4650
407 Connection ~ 4050 4100
408 Wire Wire Line
409 4650 4100 5350 4100
410 Wire Wire Line
411 4850 4200 4850 4100
412 Connection ~ 4850 4100
413 $Comp
414 L GND #PWR?
415 U 1 1 547653E5
416 P 4850 4750
417 F 0 "#PWR?" H 4850 4750 30 0001 C CNN
418 F 1 "GND" H 4850 4680 30 0001 C CNN
419 F 2 "" H 4850 4750 60 0000 C CNN
420 F 3 "" H 4850 4750 60 0000 C CNN
421 1 4850 4750
422 1 0 0 -1
423 $EndComp
424 Wire Wire Line
425 4850 4750 4850 4700
426 $Comp
427 L GND #PWR?
428 U 1 1 547654DE
429 P 6650 5450
430 F 0 "#PWR?" H 6650 5450 30 0001 C CNN
431 F 1 "GND" H 6650 5380 30 0001 C CNN
432 F 2 "" H 6650 5450 60 0000 C CNN
433 F 3 "" H 6650 5450 60 0000 C CNN
434 1 6650 5450
435 1 0 0 -1
436 $EndComp
437 Wire Wire Line
438 6650 5450 6650 5400
439 $Comp
440 L V- #PWR?
441 U 1 1 54765630
442 P 5750 3750
443 F 0 "#PWR?" H 5750 3850 30 0001 C CNN
444 F 1 "V-" H 5750 3860 30 0000 C CNN
445 F 2 "" H 5750 3750 60 0000 C CNN
446 F 3 "" H 5750 3750 60 0000 C CNN
447 1 5750 3750
448 1 0 0 -1
449 $EndComp
450 $Comp
451 L V+ #PWR?
452 U 1 1 54765667
453 P 5750 4650
454 F 0 "#PWR?" H 5750 4750 30 0001 C CNN
455 F 1 "V+" H 5750 4760 30 0000 C CNN
456 F 2 "" H 5750 4650 60 0000 C CNN
457 F 3 "" H 5750 4650 60 0000 C CNN
458 1 5750 4650
459 -1 0 0 1
460 $EndComp
461 Wire Wire Line
462 5750 4650 5750 4600
463 Wire Wire Line
464 5750 3800 5750 3750
465 Connection ~ 7000 4200
466 Wire Wire Line
467 7700 4200 7900 4200
468 Wire Wire Line
3773 jacho 469 7800 3050 7800 4250
3772 jacho 470 Connection ~ 7800 4200
471 $Comp
472 L GND #PWR?
473 U 1 1 54765C64
474 P 7800 4750
475 F 0 "#PWR?" H 7800 4750 30 0001 C CNN
476 F 1 "GND" H 7800 4680 30 0001 C CNN
477 F 2 "" H 7800 4750 60 0000 C CNN
478 F 3 "" H 7800 4750 60 0000 C CNN
479 1 7800 4750
480 1 0 0 -1
481 $EndComp
482 $Comp
483 L GND #PWR?
484 U 1 1 54765C85
3773 jacho 485 P 8600 4100
486 F 0 "#PWR?" H 8600 4100 30 0001 C CNN
487 F 1 "GND" H 8600 4030 30 0001 C CNN
488 F 2 "" H 8600 4100 60 0000 C CNN
489 F 3 "" H 8600 4100 60 0000 C CNN
490 1 8600 4100
3772 jacho 491 1 0 0 -1
492 $EndComp
493 $Comp
494 L GND #PWR?
495 U 1 1 54765CA6
3773 jacho 496 P 10150 4700
497 F 0 "#PWR?" H 10150 4700 30 0001 C CNN
498 F 1 "GND" H 10150 4630 30 0001 C CNN
499 F 2 "" H 10150 4700 60 0000 C CNN
500 F 3 "" H 10150 4700 60 0000 C CNN
501 1 10150 4700
3772 jacho 502 1 0 0 -1
503 $EndComp
504 Wire Wire Line
505 7800 4750 7800 4650
506 Wire Wire Line
3773 jacho 507 9600 3050 9600 4100
3772 jacho 508 Wire Wire Line
3773 jacho 509 9600 3300 9200 3300
3772 jacho 510 Wire Wire Line
3773 jacho 511 8850 3050 9600 3050
512 Connection ~ 9600 3300
3772 jacho 513 Wire Wire Line
3773 jacho 514 8800 3300 8500 3300
3772 jacho 515 $Comp
516 L V+ #PWR?
517 U 1 1 5476619B
3773 jacho 518 P 9000 3650
519 F 0 "#PWR?" H 9000 3750 30 0001 C CNN
520 F 1 "V+" H 9000 3760 30 0000 C CNN
521 F 2 "" H 9000 3650 60 0000 C CNN
522 F 3 "" H 9000 3650 60 0000 C CNN
523 1 9000 3650
3772 jacho 524 1 0 0 -1
525 $EndComp
526 $Comp
527 L V- #PWR?
528 U 1 1 547662DA
3773 jacho 529 P 9000 4550
530 F 0 "#PWR?" H 9000 4650 30 0001 C CNN
531 F 1 "V-" H 9000 4660 30 0000 C CNN
532 F 2 "" H 9000 4550 60 0000 C CNN
533 F 3 "" H 9000 4550 60 0000 C CNN
534 1 9000 4550
3772 jacho 535 -1 0 0 1
536 $EndComp
537 Wire Wire Line
3773 jacho 538 9000 4550 9000 4500
3772 jacho 539 Wire Wire Line
3773 jacho 540 9000 3700 9000 3650
3772 jacho 541 $Comp
542 L C C?
543 U 1 1 54766490
3773 jacho 544 P 9850 4100
545 F 0 "C?" H 9850 4200 40 0000 L CNN
546 F 1 "330k" H 9856 4015 40 0000 L CNN
547 F 2 "" H 9888 3950 30 0000 C CNN
548 F 3 "" H 9850 4100 60 0000 C CNN
549 1 9850 4100
3772 jacho 550  
551 $EndComp
552 $Comp
553 L R R?
554 U 1 1 547664D3
3773 jacho 555 P 10150 4400
556 F 0 "R?" V 10230 4400 40 0000 C CNN
557 F 1 "10k" V 10157 4401 40 0000 C CNN
558 F 2 "" V 10080 4400 30 0000 C CNN
559 F 3 "" H 10150 4400 30 0000 C CNN
560 1 10150 4400
3772 jacho 561 1 0 0 -1
562 $EndComp
563 $Comp
564 L CONN1_1 J?
565 U 1 1 54766579
3773 jacho 566 P 10550 4150
567 F 0 "J?" H 10600 4200 50 0000 C CNN
568 F 1 "OUT" H 10650 4100 40 0000 C CNN
569 F 2 "" H 10600 4100 60 0000 C CNN
570 F 3 "" H 10600 4100 60 0000 C CNN
571 1 10550 4150
3772 jacho 572 1 0 0 -1
573 $EndComp
574 Wire Wire Line
3773 jacho 575 10050 4100 10250 4100
3772 jacho 576 Wire Wire Line
3773 jacho 577 10150 4150 10150 4100
578 Connection ~ 10150 4100
3772 jacho 579 Wire Wire Line
3773 jacho 580 9600 4100 9650 4100
581 Connection ~ 9600 4100
3772 jacho 582 Wire Wire Line
3773 jacho 583 10150 4700 10150 4650
3772 jacho 584 $Comp
585 L V- #PWR?
586 U 1 1 54766B71
587 P 1200 3500
588 F 0 "#PWR?" H 1200 3600 30 0001 C CNN
589 F 1 "V-" H 1200 3610 30 0000 C CNN
590 F 2 "" H 1200 3500 60 0000 C CNN
591 F 3 "" H 1200 3500 60 0000 C CNN
592 1 1200 3500
593  
594 $EndComp
595 $Comp
596 L CONN1_1 J?
597 U 1 1 54766BD9
598 P 950 3950
599 F 0 "J?" H 1000 4000 50 0000 C CNN
600 F 1 "+Ubias" H 1050 3900 40 0000 C CNN
601 F 2 "" H 1000 3900 60 0000 C CNN
602 F 3 "" H 1000 3900 60 0000 C CNN
603 1 950 3950
604 -1 0 0 1
605 $EndComp
606 Wire Wire Line
607 1250 4000 1300 4000
608 Wire Wire Line
609 1300 3500 1200 3500
610 Wire Wire Line
3773 jacho 611 8600 4100 8600 4000
612 Wire Wire Line
613 8400 4200 8600 4200
614 Wire Wire Line
615 7800 3050 8350 3050
616 Wire Wire Line
617 8500 3300 8500 4200
618 Connection ~ 8500 4200
3772 jacho 619 $EndSCHEMATC