7
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verify that the Application Note or Technical Brief is current before proceeding.
For information regarding Intersil Corporation and its products, see www.intersil.com
AN1270.0
September 27, 2006
ISL55143IRZ Evaluation Board Schematic
FIGURE 10. ISL55143IRZ QFN QUAD COMPARATOR EVALUATION BOARD
S1 - POWER-DOWN CONTROL
SPDT - CENTER OFF
C7
+4.7µF
R5
0
Ω
R3
0
Ω
R1
50
Ω
R2
50
Ω
J9-CVB - Banana Jack
C5
0.1µF
VDD
R4
NOT POPULATED
GND
CVB_BUS
GND
GND
DIF--
DIF+
TP01-QA0_VOL
DIF--
DIF+
TP02-QB0_VOL
DIF--
DIF+
TP10-VINP3
DIF--
DIF+
TP16_CVB
QA0_J3
QB0_J4
VINP3_J8
PD - BN_J5
QA0
2
QB0
3
QA1
4
VINP2
20
VINP0
26
CVB0
27
VO
L
11
VO
H
12
VO
L
13
VE
E
14
VCC
34
QB1
5
CVA2
19
VC
C
15
VE
E
33
QA2
6
QB2
7
QA3
8
QB3
9
CV
A
3
16
VI
N
P3
17
CV
B
3
18
VO
H
10
CVA1
22
VINP1
23
CVA0
25
CVB1
24
CVB2
21
VCC
32
VE
E
31
PD
28
ISL55143_QFN
R12
50
Ω
R16
50
Ω
DIF--
DIF+
TP03-QA1_VOL
DIF--
DIF+
TP05-QB1_VOL
QA1_J18
QB1_J21
R11
50
Ω
R15
50
Ω
DIF--
DIF+
TP05-QA3_VOL
DIF--
DIF+
TP06-QB2_VOL
QA2_J17
QB2_J21
R6
50
Ω
R7
50
Ω
DIF--
DIF+
TP07-QA3_VOL
DIF--
DIF+
TP08-QB3_VOL
QA3_J12
QB3_J13
C8
+4.7µF
J10-GND - Banana Jack
J11-CVA - Banana Jack
C6
0.1µF
CVA_BUS
GND
DIF--
DIF+
TP15_CVA
VOL - Banana Jack
C1
+4.7µF
C2
0.1µF
DIF--
DIF+
TP03-VOH_VOL
VOH - Banana Jack
QA0
QB0
QA1
QB1
QA2
QB2
QA3
QB3
QB3
QA3
QB2
QA2
QB1
QA1
QB0
QA0
1
2
JP01
VOL = VEE
1
2
JP02
VOL = GND
1
2
JP03
VEE = GND
VOL
VEE
GND
VOH
VCC
VCC
VEE
VOH
VOL
GND - Banana Jack
VEE - Banana Jack
C4
+4.7µF
C3
0.1µF
VCC
DIF--
DIF+
TP01_VCC_VEE
GND
C9
0.1µF
GND
R6
0
Ω
R4
0
Ω
C9
NOT POPULATED
GND
DIF--
DIF+
TP10-VINP2
VINP2_J14
GND
R10
0
Ω
R8
0
Ω
R9
NOT POPULATED
GND
DIF--
DIF+
TP10-VINP1
VINP1_J15
GND
R14
0
Ω
R18
0
Ω
R20
NOT POPULATED
GND
DIF--
DIF+
TP10-VINP0
VINP0_J16
GND
GND
CVB_BUS
CVA_BUS
VINP0
VINP1
VINP2
VINP3
VINP0
VINP1
VINP2
VINP3
CVB_BUS
CVA_BUS
VEE
VCC - Banana Jack
GND
Application Note 1270
