3
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AN1185.0
April 19, 2005
Application Note 1185
ISL59442EVAL1 Schematic Diagram
1 IN0
2 GND
3 IN1
4 GND
5 IN2
6 GND
7 IN3
IN0
IN1
IN2
IN3
R2
R10
R11
R1
V+ 14
S1 12
OUT 10
NIC 9
V- 8
R19 - 49.9
Ω
R18 - 49.9
Ω
V-
V+
GND
RS - 75
Ω
S1
OUT
+
C6
10µF
C5
0.1µF
C4
10nF
C8
1nF
C3
10µF
C2
0.1µF
C1
10nF
C7
1nF
75
Ω
75
Ω
75
Ω
75
Ω
D1
D2
JS0
JS1
R21
C10
ISL59442
S0 13
HIZ 11
S0
R12 - 49.9
Ω
HIZ
JHIZ
+
ISL59442EVAL1 Components Parts List
DEVICE #
DESCRIPTION
COMMENTS
C7, C8
CAP, SMD, 0603, 1000pF, 25V, 10%, X7R
Power Supply Decoupling
C1, C4
CAP, SMD, 0603, 0.01µF, 25V, 10%, X7R
Power Supply Decoupling
C2, C5
CAP, SMD, 0603, 0.1µF, 25V, 10%, X7R
Power Supply Decoupling
C3, C6
CAP, SMD, 0805, 10µF, 6.3V, 10%, X5R
Power Supply Decoupling
D1, D2
Diode-Schottky, 2 Pin, 45V, 7.5A
MBR0550T (Motorola) Reverse Polarity Protection
R1, R2, R10, R11, RS
Resistor, SMD, 0603, 75
Ω
, 1/10W, 1%
Signal Input/output Termination
R12, R18, R19
Resistor, SMD, 0603, 49.9
Ω
, 1/16W, 1%
Logic Input Termination
C10
Resistor, SMD, 0603
Optional, not populated
R21
Resistor, SMD, 0603
Optional, not populated
U1
ISL59442 - 1GHz Multiplexing Amplifier, 14P, QSOP
Device Under Test
