Welch Allyn Atlas - Page 2

A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
A/D Mux
Zero Adjust
+/-20mmHg range
0mmHG = 0.5V
300mmHG = 4.0V
PWM D/A
76.8KHz
Primary
Transducer
NIBP PWM
A/D Converter
Zero
Offset
Safety
Transducer
Over Pressure
Fault Circuit
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
LPP LPP5-39456 4/27/99
6/23/99LPP LPP5-39822
Mods to U2 clock line,
NVRAM pullup
D 7/9/99LPP5-39934
620002
D
NIBP Electronics
C
26Friday, 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
D201-C
U208-2
U210-7
U204-7
U204-5
U203-3
U203-5
C207-1
U204-3
U204-2
U205-7
U206-6
U206-1
P202-Out-
U206-7
U206-2
U202-3
P202-2
P202-5
Q202-G
Q202-D
U202-5
U208-1
u207-9
PrimaryPres
P4.25V
SafetyPres
U208-3
P201-Out
P201-6
U204-1
U208-7
U209-Out
U203-6
P202-Out+
U210-2
U210-3
U203-2
Pump+
D201-A
Q201-B
Valve-
Valve+
Pump-
P.75V
+5V/2
U205-3
U207-3
P201-pwr
P+5V
NIBP-Offset-DAC
NIBP-Pump-On
NIBP-ADC-Clock
P+5V
P+5V
P+5V
P+.75V
NIBP-Safety
P+5V
P+5V
P+5V
NIBP-PWM-ADC
NIBP-Valve-Close
P+12V
5VRef
P+5V
NIBP-Overpressure
NIBP-15mmHg
NIBP-A/D-SelB
P+5V
+12V
+5V
P+.75V
+6V
NIBP-A/D-SelA
NIBP-A/D-SelC
LithMeas
P+5V
Print-Temp
P+12V
P+12V
P+12V
P+12V
P+12V
+5V
+5V
P+12V
P+12V
P+12V
P+12V
P+12V
P+12V
+12V
P+12V
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
+
-
U203A
LM393
3
2
1
84
C215
.047uF
+
-
U202A
MC34072
3
2
1
84
C225
.047uF
C224
1000pF
TP214
R233
3.48K
+
-
U208A
MC34072
3
2
1
84
TP206
R221
3.16K
C213
.01uF
Q202
MMFT2N02EL
23
1
4
R232
10K
+ C202
4.7uF
R242
10K
R230
10K
C222
.01uF
+
-
U205B
MC34072
5
6
7
84
R231
73.2K
TP217
Q201
MMBT3904L
3
1
2
+
-
U206B
MC34072
5
6
7
84
C223
.01uF
TP225
D202
BAV99L
1
3
2
R240
10K
R235
3.48K
R229
1.96K
+
-
U203B
LM393
5
6
7
84
R241
10K
R237
464K
D201
MMBD1503A
1
3
2
L201
220uH
TP228
C220
.01uF
R243
100K
+
-
U202B
MC34072
5
6
7
84
Gain
and
Comp
XFPM-050KPGR-P1
P201
1
2
3
6
TP207
U207B
74HCT00
4
5
6
147
TP231
TP210
+
-
U210
MAX941
2
3
6 1
4
7
5
TP211
TP201
C201
.047uF
+ C229
10uF
TP237
C212
680pF
TP240
TP232
C221
.047uF
TP204
TP234
C205
.047uF
R214
10K
C228
.047uF
C209
.047uF
TP226
C232
.047uF
R219
1.96K
C211
.047uF
R246
31.6
C226
.047uF
C216
.047uF
R215
100K
U207A
74HCT00
1
2
3
147
C204
.047uF
TP221
C227
680pF
TP222
+ C208
1uF
R216
19.6K
+
-
U204B
MC34072
5
6
7
84
U201
78L05
8 1
2 3 6 7
IN OUT
GND GND GND GND
R239
1K
+
-
U204A
MC34072
3
2
1
84
R201
576
C203
.047uF
TP235
TP224
R203
3.32K
R205
750
C231
.01uF
C210
.047uF
TP212
TP208
R244
38.3K
TP213
C206
.022uF
R248
1K
TP215
R249
1K
TP220
L202
Bead
+
-
U208B
MC34072
5
6
7
84
R227
5.11K
TP219
J201
CON5
1
2
3
4
5
R236
3.83K
R223
21.5K
R222
1K
U207C
74HCT00
9
10
8
147
R228
1.96K
R224
1K
C230
.047uF
U207D
74HCT00
12
13
11
147
TP236
R225
1K
+
-
U205A
MC34072
3
2
1
84
TP202
R211
1.96K
R226
21.5K
R208
1.96K
C217
.047uF
-+
FPNS-07PGR
P202
2
1
3
5
6
+ C218
4.7uF
C219
.047uF
TP209
R204
150
R218
23.7K
R202
174
+ C207
1uF
R217
5.62K
R212
56.2K
R234
3.48K
+
-
U206A
MC34072
3
2
1
84
R213
237K
Q203
MMDF2N02E
8
1
2
5 6 7
3
4
R209
1K
TP227
TP216
R207
464K
TP229
R220
806
R210
464K
U209
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
TP233
TP238
TP203
R206
1K
TP230
TP218
C214
.047uF