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
@ -20,7 +20,7 @@ $EndGENERAL
$SHEETDESCR
Sheet A4 11700 8267
Title ""
Date "23 aug 2010"
Date "25 aug 2010"
Rev ""
Comp ""
Comment1 ""
@ -350,7 +350,7 @@ AR /4C71B06B
Op 0 0 0
At SMD
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

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
[eeschema]
version=1

7
cntr/cntr.sch
View File

@ -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:device
LIBS:conn
LIBS:c8051f320
LIBS:mini_usb_b
LIBS:cntr-cache
EELAYER 24 0
EELAYER END
$Descr A4 11700 8267
Sheet 1 1
Title ""
Date "23 aug 2010"
Date "25 aug 2010"
Rev ""
Comp ""
Comment1 ""
@ -266,7 +267,7 @@ L R R1
U 1 1 4C71B06B
P 8650 1650
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
1 8650 1650
0 -1 -1 0