Welch Allyn Atlas - Page 6

A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
U601
PWM
A/D
Converter
U602
781uSec
-5V
(U604-10)
Integrator
Input
A/D Mux
U603
+5V
(U604-8)
Serial/Parallel
Control Data
PWM-Out
Comparator
Inputs
PWM-timer
U601
Isolation
Barrier
U603
52uSec
Analog In
U602
U604
Rick Myers
Rick Myers
Mar 5, 1999
Mar 5, 1999
620002.dsn
5-39118
JAC 3/15/99 LPP
L.Phillips
Z. Psenicnik
J. Bello
3/16/99
3/16/99
3/17/99
B See ECN worksheet
C
Improvements for ESD
and Fast Transients
4/27/995-39456 LPP LPP
LPP LPP5-39822 6/23/99
Mods to U2 clock line,
NVRAM pullup
D 7/9/995-39934 LPP
620002
D
ECG A/D and Interface
C
66Friday, July 09, 1999
Title
Size
Document Number
Rev
Date: Sheet of
Welch Allyn Inc.
Schematic:
Release For Production
Approved
Checked
Designed
Drawn
Initial Date
REV
Description
ECN/ECO Init
Date Ckd
A Release to Production
U601-1
U603out
Mux-A/D-B
U602-7
U601-2
U604-4
U602-2
U602-5
iso601-a
Mux-A/D-C
Mux-A/D-A
U601-3
iso602-a
U604-8
U601-7
Q601-e
U604-6
D601-2
U604-10
Sw-DiagBw
U605-out
iso604-a
iso603-a
u604-3
U602-3
SW-RL-V
U604-2 U613-6
U604-1
U612-6
U611-6
U604-5
U605-12
U610-6
Sw-RLD-RL
f+1.24V
An-ECG
LL
Mux-LdS-B
LA
Sw-RLD-RA
FE-PWM-ADC
Sw-RLD-LL
FE-ADC-Clock
Mux-LdS-A
RA
V+
Mux-LdS-C
Sw-RLD-LA
vRL
fVcc
iso+5Vdig
f+1.24V
Sw-MonBw
FE-Data-In
FE-Data-Clock
+5V
+5V
Sw-RLD-V
fVee
f+5V
f+1.24V
E
E
f+5V
f+5V
f+5V
ED
+5V
ED
E
E
fVee
E E
fVcc
ED
E
f+5V
fVcc
E
E
+5V
f+5V
E
E
E
ED
E
E
fVcc
iso+5Vdig
fVcc
E
ED
E
fVee
fVee
fVcc
fVcc
fVcc
iso+5Vdig
iso+5Vdig
ED
iso+5Vdig
iso+5Vdig
ED
iso+5Vdig
ED
ED
ED
fVcc
fVee
E E
fVee
E E
E
fVee
ED
ED
f+5V
f+5V
ED
ED
TP615
TP622
TP608
U606
74HCT595
14
11
10
12
13
15
1
2
3
4
5
6
7
9
168
SER
SRCLK
SRCLR
RCLK
G
QA
QB
QC
QD
QE
QF
QG
QH
QH
VCCGND
U604F
74HCT04
13 12
147
TP601
C637
1000pF
TP609
TP602
U604A
74HCT04
12
147
R623
46.4K
R604
10K
C624
.047uF
C636
100pF
C634
220pF
C641
0.1uF
R603
46.4K
R601
10K
TP618
R602
73.2K
R605
3.48K
TP625
C632
.047uF
R607
464K
TP620
R608
1K
C635
220pF
U611
HCNW4503
2
3
8
6
5
TP610
U613
HCNW4503
2
3
8
6
5
+
-
U602
LM311
2
3
7
5 6
4 1
8
Q601
MMBT3904L
3
1
2
TP604
U612
HCNW4503
2
3
8
6
5
C629
.047uF
R611
6.19K
TP611
R610
511
R613
6.19K
U605
74HCT595
14
11
10
12
13
15
1
2
3
4
5
6
7
9
168
SER
SRCLK
SRCLR
RCLK
G
QA
QB
QC
QD
QE
QF
QG
QH
QH
VCCGND
U604C
74HCT04
56
147
+
-
U607B
LM393
5
6
7
84
TP617
C603
680pF
R621
215
R627
5.11K
U604D
74HCT04
9 8
147
TP613
R615
6.19K
TP603
+ C631
4.7uF
R622
46.4K
TP629
TP612
U604E
74HCT04
11 10
147
+ C609
4.7uF
U610
HCNW4503
2
3
8
6
5
TP606
R628
10K
C625
.047uF
TP619
C601
1000pF
R626
10K
+
-
U601A
MC34072
3
2
1
84
C626
.047uF
TP616
TP626
C627
.047uF
TP614
R625
10K
R617
2.15K
+
-
U607A
LM393
3
2
1
84
C642
0.1uF
TP605
C628
0.1uF
D601
MMBD1503A
1
3
2
TP627
C633
100pF
C623
.047uF
TP623
C621
0.1uF
TP630
+
C614
4.7uF
TP628
C622
.047uF
+
-
U601B
MC34072
5
6
7
84
U604B
74HCT04
34
147
TP624
R624
5.11K
R619
619
TP621
TP607
U603
4051
13
14
15
12
1
5
2
4
6
11
10
9
3
16 8
7
X0
X1
X2
X3
X4
X5
X6
X7
INH
A
B
C
X
VDD VSS
VEE
R606
3.48K
R620
619