ISL59440IAZ-T7 Ver la hoja de datos (PDF) - Intersil
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ISL59440IAZ-T7 Datasheet PDF : 12 Pages
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ISL59440
Pin Descriptions
EQUIVALENT
PIN NUMBER PIN NAME CIRCUIT
DESCRIPTION
1, 3, 7
NIC
Not Internally Connected; it is recommended this pin be tied to ground to minimize crosstalk
2
IN0
Circuit 1 Input for channel 0
4
IN1
Circuit 1 Input for channel 1
5
GND
Circuit 4 Ground pin
6
IN2
Circuit 1 Input for channel 2
8
IN3
Circuit 1 Input for channel 3
9
S0
Circuit 2 Channel selection pin LSB (binary logic code)
10
S1
Circuit 2 Channel selection pin MSB (binary logic code)
11
V-
Circuit 4 Negative power supply
12
V+
Circuit 4 Positive power supply
13
OUT
Circuit 3 Output
14
IN-
Circuit 1 Inverting input of output amplifier
15
HIZ
Circuit 2 Output disable (active high); there are internal pull-down resistors, so the device will be active with
no connection; “HI” puts the output in high impedance state
16
ENABLE
Circuit 2 Device enable (active low); there are internal pull-down resistors, so the device will be active with
no connection; "HI" puts device into power-down mode
V+
IN
V-
CIRCUIT 1.
LOGIC PIN
21K
+
33K 1.2V-
CIRCUIT 2.
V+
GND.
V-
V+
OUT
V-
CIRCUIT 3.
V+
GND
V-
CAPACITIVELY
COUPLED
ESD CLAMP
CIRCUIT 4.
AC Test Circuits
ISL59440
RG RF
AV =1, 2
RS
VIN
50Ω
or
CL
475Ω
or
50Ω
or
75Ω
462.5Ω
75Ω
TEST
EQUIPMENT
50Ω
or
75Ω
ISL59440
RG RF
VIN
50Ω
or
75Ω
AV = 1, 2
RS
CL 50Ω or 75Ω
TEST
EQUIPMENT
50Ω
or
75Ω
FIGURE 24A. TEST CIRCUIT FOR MEASURING WITH A 50Ω OR
75Ω INPUT TERMINATED EQUIPMENT
FIGURE 24B. BACKLOADED TEST CIRCUIT FOR VIDEO
CABLE APPLICATION. BANDWIDTH AND
LINEARITY FOR RL LESS THAN 500Ω WILL BE
DEGRADED.
NOTE: Figure 24A illustrates the optimum output load when connecting to input terminated equipment. Figure 24B illustrates
backloaded test circuit for video cable applications.
8
FN6162.1
September 21, 2005
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