el4342 Intersil Corporation, el4342 Datasheet - Page 8

• Manufacturer Part Number: el4342
• Description: 500mhz Triple, Multiplexing Amplifier
• Manufacturer: Intersil Corporation

2, 4, 8, 13, 15,
(32 LD QFN)
24, 28, 30
IEL4342
10
12
14
16
17
18
19
20
21
22
23
25
26
27
29
31
32
11
1
3
5
6
7
9
IN
GNDA
GNDB
GNDC
V-
V+
4, 7, 9, 13, 15,
(24 LD QFN)
EL4340
CIRCUIT 1
NA
NA
NA
NA
NA
NA
NA
24
10
12
11
14
17
18
16
20
19
22
23
21
8
5
6
3
1
2
CIRCUIT 4
8
ENABLE
CAPACITIVELY
COUPLED
ESD CLAMP
NAME
GNDB
GNDC
OUTC
GNDA
OUTB
OUTA
IN1A
IN1B
IN1C
IN2A
IN2B
IN2C
IN3A
IN3B
IN3C
IN0C
IN0B
IN0A
PIN
NIC
HIZ
S1
S0
V+
LE
V-
V+
V-
EQUIVALENT
CIRCUIT
Circuit 1
Circuit 1
Circuit 1
Circuit 4
Circuit 1
Circuit 1
Circuit 1
Circuit 4
Circuit 1
Circuit 1
Circuit 1
Circuit 2
Circuit 2
Circuit 3
Circuit 3
Circuit 4
Circuit 3
Circuit 4
Circuit 2
Circuit 2
Circuit 2
Circuit 1
Circuit 1
Circuit 1
Circuit 4
LOGIC PIN
EL4340, EL4342
Channel 1 input for output amplifier "A"
Not Internally Connected; it is recommended these pins be tied to ground to
minimize crosstalk.
Channel 1 input for output amplifier "B"
Channel 1 input for output amplifier "C"
Ground pin for output amplifier “B”
Channel 2 input for output amplifier "A"
Channel 2 input for output amplifier "B"
Channel 2 input for output amplifier "C"
Ground pin for output amplifier “C”
Channel 3 input for output amplifier "A"
Channel 3 input for output amplifier "B"
Channel 3 input for output amplifier "C"
Channel selection pin MSB (binary logic code)
Channel selection pin. LSB (binary logic code)
Output of amplifier “C”
Output of amplifier “B”
Negative power supply
Output of amplifier “A”
Positive power supply
Device enable (active low). Internal pull-down resistor ensures the device will be
active with no connection to this pin. A logic High on this pin puts device into power-
down mode. In power-down mode only logic circuitry is active. All logic states are
preserved post power-down. This state is not recommended for logic control where
more than one MUX-amp share the same video output line.
Device latch enable on the EL4340. A logic high on LE will latch the last (S0, S1)
logic state. HIZ and ENABLE functions are not latched with the LE pin.
Output disable (active high). Internal pull-down resistor ensures the device will be
active with no connection to this pin. A logic high, puts the outputs in a high
impedance state. Use this state to control logic when more than one MUX-amp
share the same video output line.
Channel 0 for output amplifier "C"
Channel 0 for output amplifier "B"
Channel 0 for output amplifier "A"
Ground pin for output amplifier “A”
CIRCUIT 2
21K
33K
1.2V
+
-
THERMAL HEAT SINK PAD
GND
V+
V-
DESCRIPTION
V-
CIRCUIT 3
~1M
SUBSTRATE
Ω
V-
V+
OUT
February 23, 2006
FN7421.2