qi-hardware/ben-wpan
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The parasitic capacitance of the three probe input pins and R1 formed a

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quite formidable low-pass filter that almost completely eliminated the
1 MHz signal.

- cntr/cntr.sch, cntr/cntr.brd: changed R1 from 100k to 1k to increase
  input bandwidth
This commit is contained in:
Werner Almesberger 2010-08-25 06:36:02 -03:00
parent 3584b5b736
commit 81ab679fbd
3 changed files with 8 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
cntr/cntr.brd
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@ -1,4 +1,4 @@
PCBNEW-BOARD Version 1 date Mon Aug 23 00:51:37 2010 PCBNEW-BOARD Version 1 date Wed Aug 25 06:34:28 2010
# Created by Pcbnew(2010-08-11 BZR 2448)-unstable # Created by Pcbnew(2010-08-11 BZR 2448)-unstable
@ -20,7 +20,7 @@ $EndGENERAL
$SHEETDESCR $SHEETDESCR
Sheet A4 11700 8267 Sheet A4 11700 8267
Title "" Title ""
Date "23 aug 2010" Date "25 aug 2010"
Rev "" Rev ""
Comp "" Comp ""
Comment1 "" Comment1 ""
@ -350,7 +350,7 @@ AR /4C71B06B
Op 0 0 0 Op 0 0 0
At SMD At SMD
T0 0 -150 200 200 0 40 N V 25 N"R1" T0 0 -150 200 200 0 40 N V 25 N"R1"
T1 0 150 200 200 0 40 N I 25 N"100k" T1 0 150 200 200 0 40 N I 25 N"1k"
DS -443 227 -443 -227 50 21 DS -443 227 -443 -227 50 21
DS -443 -227 443 -227 50 21 DS -443 -227 443 -227 50 21
DS 443 -227 443 227 50 21 DS 443 -227 443 227 50 21

2
cntr/cntr.pro
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@ -1,4 +1,4 @@
update=Sun Aug 22 21:43:11 2010 update=Wed Aug 25 06:34:30 2010
last_client=pcbnew last_client=pcbnew
[eeschema] [eeschema]
version=1 version=1

7
cntr/cntr.sch
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@ -1,15 +1,16 @@
EESchema Schematic File Version 2 date Sun Aug 22 21:08:12 2010 EESchema Schematic File Version 2 date Wed Aug 25 06:34:07 2010
LIBS:power LIBS:power
LIBS:device LIBS:device
LIBS:conn LIBS:conn
LIBS:c8051f320 LIBS:c8051f320
LIBS:mini_usb_b LIBS:mini_usb_b
LIBS:cntr-cache
EELAYER 24 0 EELAYER 24 0
EELAYER END EELAYER END
$Descr A4 11700 8267 $Descr A4 11700 8267
Sheet 1 1 Sheet 1 1
Title "" Title ""
Date "23 aug 2010" Date "25 aug 2010"
Rev "" Rev ""
Comp "" Comp ""
Comment1 "" Comment1 ""
@ -266,7 +267,7 @@ L R R1
U 1 1 4C71B06B U 1 1 4C71B06B
P 8650 1650 P 8650 1650
F 0 "R1" V 8730 1650 50 0000 C CNN F 0 "R1" V 8730 1650 50 0000 C CNN
F 1 "100k" V 8650 1650 50 0000 C CNN F 1 "1k" V 8650 1650 50 0000 C CNN
F 2 "0603" H 8650 1650 60 0001 C CNN F 2 "0603" H 8650 1650 60 0001 C CNN
1 8650 1650 1 8650 1650
0 -1 -1 0 0 -1 -1 0