From a3713be8c30223240a07eb12ae51a10b1301590b Mon Sep 17 00:00:00 2001 From: Bdale Garbee Date: Sun, 23 Feb 2014 18:17:14 -0700 Subject: [PATCH] op amps only need picoamps of bias, so use 1M resistors for the divider --- usbtrng.pcb | 4 ++-- usbtrng.sch | 8 ++++---- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/usbtrng.pcb b/usbtrng.pcb index 556cae9..b7bc6cd 100644 --- a/usbtrng.pcb +++ b/usbtrng.pcb @@ -1017,14 +1017,14 @@ Element["" "0402" "R71" "150k" 679.26mil 275.00mil 31.50mil 31.50mil 2 100 ""] ) -Element["" "0402" "R75" "10k" 429.00mil 550.00mil -31.50mil 31.50mil 1 100 ""] +Element["" "0402" "R75" "1M" 429.00mil 550.00mil -31.50mil 31.50mil 1 100 ""] ( Pad[-3.93mil 15.74mil 3.93mil 15.74mil 19.68mil 20.00mil 25.68mil "1" "1" "square"] Pad[-3.93mil -15.74mil 3.93mil -15.74mil 19.68mil 20.00mil 25.68mil "2" "2" "square"] ) -Element["" "0402" "R74" "10k" 429.00mil 488.00mil -31.50mil 31.50mil 1 100 ""] +Element["" "0402" "R74" "1M" 429.00mil 488.00mil -31.50mil 31.50mil 1 100 ""] ( Pad[-3.93mil 15.74mil 3.93mil 15.74mil 19.68mil 20.00mil 25.68mil "1" "1" "square"] Pad[-3.93mil -15.74mil 3.93mil -15.74mil 19.68mil 20.00mil 25.68mil "2" "2" "square"] diff --git a/usbtrng.sch b/usbtrng.sch index 129335a..aba94e5 100644 --- a/usbtrng.sch +++ b/usbtrng.sch @@ -811,9 +811,9 @@ vendor=digikey T 65400 55200 5 10 1 1 0 0 1 refdes=R74 T 65900 55200 5 10 1 1 0 0 1 -value=10k +value=1M T 66300 55600 5 10 0 0 0 0 1 -vendor_part_number=P10.0KLCT-ND +vendor_part_number=P1.00MLCT-ND } C 67400 55600 1 180 0 resistor.sym { @@ -828,9 +828,9 @@ vendor=digikey T 66500 55200 5 10 1 1 0 0 1 refdes=R75 T 67000 55200 5 10 1 1 0 0 1 -value=10k +value=1M T 67400 55600 5 10 0 1 0 0 1 -vendor_part_number=P10.0KLCT-ND +vendor_part_number=P1.00MLCT-ND } N 66300 55500 66500 55500 4 N 66400 55000 66400 55500 4 -- 2.30.2