ISL59482 Intersil Corporation, ISL59482 Datasheet - Page 10

• Manufacturer Part Number: ISL59482
• Description: Multiplexing Amplifiers
• Manufacturer: Intersil Corporation

Pin Description
Pin Equivalent Circuits
AC Test Circuits
FIGURE 27B. TEST CIRCUIT FOR MEASURING WITH 50Ω OR
(48 LD QFN) PIN NAME
FIGURE 27A. TEST CIRCUIT WITH OPTIMAL OUTPUT LOAD
ISL59482
V
IN
50Ω
75Ω
or
42
43
44
45
46
GNDC1
GNDB1
GNDA1
V1+
IN
ISL59482
V1-
75Ω INPUT TERMINATED EQUIPMENT
V
IN
IN2C1
IN3C1
IN3A1
IN3B1
50Ω
75Ω
GND
or
CIRCUIT 4A
C
5pF
L
CIRCUIT 1
ISL59482
475Ω
(Continued)
R
EQUIVALENT
S
Circuit 4A
CIRCUIT
Circuit 1
Circuit 1
Circuit 1
Circuit 1
10
CAPACITIVELY
COUPLED
ESD CLAMP
C
5pF
L
50Ω
75Ω
or
V+
V-
Channel 2 input for amplifier C1
Channel 3 input for amplifier A1
Channel 3 input for amplifier B1
Channel 3 input for amplifier C1
Ground pin for amplifier C1
500Ω
R
L
GNDB2
GNDA2
GNDC2
LOGIC PIN
EQUIPMENT
50Ω
75Ω
V2+
or
V2-
TEST
CIRCUIT 4B
ISL59482
21k
33k
CIRCUIT 2
1.2V
CAPACITIVELY
COUPLED
ESD CLAMP
+
AC Test Circuits
Figure 27A illustrates the optimum output load for testing AC
performance. Figure 27B illustrates the optimum output load
when connecting to 50Ω input terminated equipment.
-
FIGURE 27C. BACKLOADED TEST CIRCUIT FOR VIDEO
V
IN
50Ω
75Ω
or
GND
V+
V-
DESCRIPTION
ISL59482
CABLE APPLICATION. BANDWIDTH AND
LINEARITY FOR R
DEGRADED.
FIGURE 27. TEST CIRCUITS
V1-
C
5pF
L
SUBSTRATE 1
~1M
50Ω or 75Ω
R
(Continued)
S
THERMAL HEAT SINK PAD
Ω
L
CIRCUIT 3
LESS THAN 500Ω WILL BE
SUBSTRATE 2
V-
V+
OUT
EQUIPMENT
December 22, 2006
~1M
50Ω
75Ω
or
TEST
Ω
FN6209.2
V2-