UTC L8020G-S08-R Dual polarisation switch twin lnb multiplex controller Datasheet

UNISONIC TECHNOLOGIES CO., LTD
L8020
LINEAR INTEGRATED CIRCUIT
DUAL POLARISATION SWITCH
TWIN LNB MULTIPLEX
CONTROLLER

DESCRIPTION
The UTC L8020 dual polarisation switch controller is one of a
wide range of satellite receiver LNB support circuits. Its features
include completely independent channels, and every channel
provides two logic outputs under the voltage sensitive input. The
two inputs of the UTC L8020 have a nominal threshold of 14.5V.
Their threshold is temperature compensated to minimize drift. In
order to achieve the transient protection by adding only a single
resistor per channel, each input has a low and stable input current.
Normal and inverted outputs are provided for each input. All
outputs can source 15mA and sink 10mA making them suitable to
drive TTL and CMOS logic, pin diodes and for IF-amp supply 
FEATURES
switching.
The UTC L8020 works in a single supply ranging from 5V * Avoid external components
to12V. The quiescent current of the UTC L8020 is 4mA, and there * Provides polarity detection and control
is no remarkable change with load or logic state. In order to adapt * Transient resistant
the variation of environmental conditions, the ambient operating * Low input and supply current
* Temperature compensated input threshold
temperature is -40°C~+85°C.
The UTC L8020 can be used in applications, such as IF switch * Normal and inverted output available while
wide supply operating range
box, LNB switch boxes and twin LNBs, replacing many discrete
*
Dual
polarisation switch
components to save both manufacturing cost and PCB size as well
*
Simplify
the design
as improving reliability.

ORDERING INFORMATION
Ordering Number
L8020G-S08-R
L8020G-SM1-R

Package
SOP-8
MSOP-8
Packing
Tape Reel
Tape Reel
MARKING
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QW-R123-015.D
L8020
LINEAR INTEGRATED CIRCUIT

PIN CONFIGURATION

PIN DESCRIPTION
PIN NO.
SOP-8
MSOP-8
1
7
2
8
3
1
4
2
5
3
6
4
7
5
8
6
PIN NAME
VERT1
HOR1
VERT2
HOR2
GND
VP2
VP1
VCC
DESCRIPTION
Vertical output 1
Horizontal output 1
Vertical output 2
Horizontal output 2
Ground connection pin.
Polarity select input 2
Polarity select input 1
Supply voltage
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QW-R123-015.D
L8020

LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING
PARAMETER
Supply Voltage
Input Voltage (VPOL1 and VPOL2)
Supply Current
RATINGS
UNIT
-0.6~+15
V
25
V
50
mA
MSOP-8
350
Power Dissipation (TA=25°C)
PD
mW
SOP-8
500
Operating Temperature
TOPR
-40~+85
°C
Storage Temperature
TSTG
-40~+85
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

SYMBOL
VCC
VIN
ICC
ELECTRICAL CHARACTERISTICS
(TA= 25°C, VCC=5V, ID=10mA (RCAL1 =33kΩ), unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Supply Voltage
VCC
5
12
V
All inputs and outputs open circuit
10
mA
Supply Current
ICC
IVERT1 =IVERT2 =10mA, VPOL1 =VPOL2 =14V
30
mA
IHOR1 =IHOR2 =10mA, VPOL1 =VPOL2 =15.0V
30
mA
VPOL1 and VPOL2 Inputs
Current
IPOL
VPOL1 =VPOL2 =25V (Note 1)
10
20
40
μA
Threshold Voltage
VTPOL (Note 1) (Note 2)
14.0
14.5
15.0
Switching Speed
TSPOL
100
μs
VERT 1/2 Outputs
IVERT1 =IVERT2 =10mA, VPOL1 =VPOL2 =14V
VCC-1.0 VCC-0.8 VCC
V
Voltage High
VVH
IVERT1 =IVERT2 =15mA, VPOL1 =VPOL2 =14V
VCC-1.2 VCC-0.9 VCC
V
IVERT1 =IVERT2 =10µA, VPOL1 =VPOL2 =14V
VCC-0.2 VCC-0.1 VCC
V
Voltage Low
VVL
IVERT1 =IVERT2 =-10mA, VPOL1 =VPOL2 =15.0V
0
0.25
0.5
V
HOR 1/2 Outputs
IHOR1 =IHOR2 =10mA, VPOL1 =VPOL2 =15.0V
VCC-1.0 VCC-0.8 VCC
V
Voltage High
VVH
IHOR1 =IHOR2 =15mA, VPOL1 =VPOL2 =15.0V
VCC-1.2 VCC-0.9 VCC
V
IHOR1 =IHOR2 =10µA, VPOL1 =VPOL2 =15.0V
VCC-0.2 VCC-0.1 VCC
V
Voltage Low
VVLOW IHOR1 =IHOR2 =-10mA, VPOL1 =VPOL2 =14V
0
0.25
0.5
V
Notes: 1. VPOL1 and VPOL2 switching thresholds apply over the whole operating temperature range specified above.
2. Applied via 10k resistors.
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L8020

LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
A twin LNB design is as followed. In this block diagram, the UTC L8020 provides the two polarity switches
required to decode the two independent receiver feeds.
Horizontal
Antenna
1
3
Gain Stage
GaAs/HEMTFET
X
Bias
Generator
Series
Local OSC
4
Gain Stage
GaAs/HEMTFET
DC Input
13-25V
Horizontal
PIN
Diode
MUX
X
Mixer
2
H/V Output 1
Mixer
Control
Control Input
<=14V-Horizontal
>=15V-Vertical
L8020 Series
Dual H/V
Switch
Vertical
H/V Output 2
Vertical
Antenna
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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www.unisonic.com.tw
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