UNISONIC TECHNOLOGIES CO.,LTD
L8211
LINEAR INTEGRATED CIRCUIT
FET BIAS CONTROLLER WITH
POLARIZATION SWITCH AND
TONE DETECTION
DESCRIPTION
The UTC L8211 is designed to bias the MOSFETs that are
commonly used in LNBs that can implies minimum external
components requires.
FEATURES
* Three outputs that can drive up to 3 FETs.
* Drain current adjustable by external resistor.
* HB and LB switch for LNBs.
* Band switching by 22kHz tone detection.
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
L8211L-R20-R
L8211G-R20-R
L8211L-R20-T
L8211G-R20-T
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co.,LTD
Package
Packing
SSOP-20
SSOP-20
Tape Reel
Tube
1of 6
QW-R123-008,C
L8211
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATION
G1
1
20
VCC
D1
2
19
RCAL
G2
3
18
VPOL
D2
4
17
FIN
G3
5
16
N/C
D3
6
15
FOUT
GND
7
14
LOV
CNB1
8
13
HB
CNB2
9
12
LB
N/C
10
11
CSUB
PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
9
10, 16
11
12
13
14
15
17
18
19
20
PIN NAME
G1
D1
G2
D2
G3
D3
GND
CNB1
CNB2
N/C
CSUB
LB
HB
LOV
FOUT
FIN
VPOL
RCAL
VCC
DESCRIPTION
To Gate of FET 1
To Drain of FET 1
To Gate of FET 2
To Drain of FET 2
To Gate of FET 3
To Drain of FET 3
Ground
Connect 47nF capacitance to CNB2
Connect 47nF capacitance to CNB1
Nothing connect
Connect an external 47nF cap to -3V
Low band switch output
High band switch output
LB and HB's switch
Filter output
LNB input
Control input switch
Connect 33kohm to set Id1, Id2 and Id3 to 10mA
Power supply
UNISONIC TECHNOLOGIES CO., LTD
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2 of 6
QW-R123-008,C
L8211
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
-0.6 ~ +12
V
Supply Current
ICC
100
mA
Input Voltage
VIN
25 Continuous
V
Drain Current (per FET)(set by RCAL)
ID
0 ~ 15
mA
Power Dissipation(Ta=25°C)
PD
600
mW
Operating Temperature
TOPR
-40~+70
°C
Storage Temperature
TSTG
-50~+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.
ELECTRICAL CHARACTERISTICS
(Ta=25°C, VCC=5V, ID=10mA, RCAL=33KΩ, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
Supply Voltage
VCC
ID1 to ID3=0
ID1 =0, ID2 to ID3=10mA,VPOL=14V
ID2=0, ID1 to ID3=10mA,VPOL=15.5V
Supply Current
ICC
ID1 to ID3=0,ILB=10mA
MIN
5
6
25
25
16
16
ID1 to ID3=0,IHB=10mA
Substrate Voltage
Output Noise
Gate Voltage
Drain Voltage
Oscillator Freq
ENG
END
fO
-3.5
-3
200
350
MIN
-30
-0.05
-2.7
0.4
-0.05
-2.7
0.4
-3.5
0.4
TYP
MAX
10
15
35
35
25
25
UNIT
V
mA
mA
mA
mA
mA
-2.5
-2.4
0.005
0.02
800
V
V
Vpkpk
Vpkpk
kHz
MAX
2000
0.05
-2
1.0
0.05
-2
1.0
-2
1.0
UNIT
µA
V
V
V
V
MAX
12
UNIT
mA
%/V
%/°C
V
V
V
%/V
ppm
µA
µA
GATE CHARACTERISTICS
PARAMETER
Output Current Range
Output Voltage
Off
Gate 1
Low
High
Output Voltage
Off
Gate 2
Low
High
Output Voltage
Low
Gate 3
High
VSUB
(Internally generated) ISUB =0
ISUB = -200µA
CG=4.7nF,CD=10nF
CG=4.7nF,CD=10nF
TYP
SYMBOL
IGO
VG1O
VG1L
VG1H
VG2O
VG2L
VG2H
VG3L
VG3H
TEST CONDITIONS
ID1=0mA, VPOL=14V, IGO1=0µA
ID1=12mA, VPOL=15.5V, IGO1=-10µA
ID1=8mA, VPOL=15.5V, IGO1=0µA
ID2=0mA, VPOL=15.5V, IGO2=0µA
ID2=12mA, VPOL=14V, IGO2=-10µA
ID2=8mA, VPOL=14V, IGO2=0µA
ID3=12mA, IGO3=-10µA
ID3=8mA, IGO3=0µA
0
-2.4
0.75
0
-2.4
0.75
-2.9
0.75
V
DRAIN CHARACTERISTICS
PARAMETER
Current
With VCC
With TJ
Drain 1 Voltage: High
Drain 2 Voltage: High
Drain 3 Voltage: High
With VCC
Voltage Change
With TJ
Drain 1
Leakage Current
Drain 2
Current Change
SYMBOL
ID
△IDV
△IDT
VD1
VD2
VD3
△VDV
△VDT
ILEAK1
ILEAK2
TEST CONDITIONS
VCC=5 ~ 10V
TJ =-40 ~ +70°C
ID1=10mA,VPOL=15.5V
ID2=10mA,VPOL=14V
ID3=10mA
VCC =5 ~ 10V
TJ =-40 ~ +70°C
VD1=0.5V,VPOL=14V
VD2=0.5V,VPOL=15.5V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
8
1.8
1.8
1.8
TYP
10
0.5
0.05
2
2
2
0.5
50
2.2
2.2
2.2
10
10
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L8211
LINEAR INTEGRATED CIRCUIT
TONE DETECTION CHARACTERISTICS
PARAMETER
Filter Amplifier
Input Bias Current
Output Voltage
Output Current
Voltage Gain
Rejection Frequency
V Threshold
Output Stage
Lov Volt.Range
Lov Bias Current
SYMBOL
IB
VOUT
IOUT
Gv
fR
FVT
TEST CONDITIONS
RF1=150kΩ
RF1=150kΩ
VOUT=1.96V, VFIN=2.1V
f=22kHz, VIN=1mV
V(AC)IN=1V p/p sq.w
IL=50mA(LB or HB)
VLOV=0V
VLOV=0V, IL=-10µA
LB Output Low
VLBL
VLOV=3V, IL=0mA
VLOV=0V, IL=10 mA
LB Output High
VLBH
VLOV=3V, IL=50mA
VLOV=0V, IL=-10µA
HB Output Low
VHBL
VLOV=3V, IL=0mA
VLOV=0V, IL=10mA
HB Output High
VHBH
VLOV=3V, IL=50mA
Note: Noise voltage measurement would be ignored in production.
MIN
TYP
MAX
UNIT
0.02
1.75
400
0.07
1.95
520
46
7.5
0.25
2.05
650
350
µA
V
µA
dB
kHz
mV p/p
VCC-1.8
1
-2.5
0.01
0.025
3.1
-2.5
0.01
0.025
3.1
V
µA
V
V
V
V
V
V
V
V
MAX.
40
15.5
100
UNIT
µA
V
ms
1.0
100
VLOV
ILOV
Enable
Enable
Disable
Disable
Disable
Disable
Enable
Enable
-0.5
0.02
-3.5
-0.01
-0.025
2.9
-3.5
-0.01
-0.025
2.9
0.15
-2.75
0
0
3
-2.75
0
0
3
MIN.
10
14
TYP.
20
14.75
POLARITY SWITCH CHARACTERISTICS
PARAMETER
Input Current
Threshold Voltage
Switching Speed
SYMBOL
IPOL
VTPOL
TSPOL
TEST CONDITION
VPOL=25V (Applied via RPOL=10kΩ)
VPOL=25V (Applied via RPOL=10kΩ)
VPOL=25V (Applied via RPOL=10kΩ)
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www.unisonic.com.tw
4 of 6
QW-R123-008,C
L8211
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS
JFET Drain Current vs Rcal
JFET Drain Voltage vs Drain Current
16
14
2.2
12
10
2.1
8
6
2.0
10V
4
8V
2
5V
1.9
2
4
6
8
10
12
Drain Current (mA)
14
16
0
VCC =5V
0
20
LB/HB Offset Voltage vs Load Current
40
60
Rcal (k)
80
100
LB/HB Dropout Voltage vs Load Current
2.0
4
1.9
2
1.8
0
1.7
Ta=70°C
-2
Ta=25°C
-4
Ta= -40°C
1.6
Ta=25°C
1.5
Ta= -40°C
-6
Ta=70°C
1.4
-8 VCC =5V
VLOV=0V
0
10
1.3
20
30
Load Current (mA)
40
50
1.2
VCC =5V
0
10
20
30
Load Current (mA)
40
50
Open Loop Phase vs Frequency
Open Loop Gain vs Frequency
70
60
180
50
150
40
120
30
90
20
60
10
30
0
0
VCC =5V
VCC =5V
100
1k
10k
100k
1M
10M
Frequency (Hz)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
100
1k
10k
100k
1M
10M
Frequency (Hz)
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QW-R123-008,C
L8211
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS(Cont.)
Filter Response
VSUB vs External Load
1.4
1.2
-1.5
5V
Fout Voltage (Vpkpk)
Substrate Voltage, VSUB (V)
-1.0
-2.0
8V
-2.5
10V
1.0
0.8
0.6
0.4
-3.0
0.2
0
0.2
0.4
0.6
0.8
1.0
External Vsub Load (mA)
0
100
1k
10k
100k
1M
Frequency (Hz)
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.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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