AIMTRON AT1511R

AT1511
Preliminary product Information
FET BIAS CONTROLLER AND TONE DETECTION
Features
Description
•Provides bias for GaAs and HEMT FETs
•Drives up to three FETs
•Dynamic FET protection
•Drain current set by external resistor
•Regulated negative rail generator requires
only 2 external capacitors
•Choice in drain voltage
•Wide supply voltage range
•Polarisation switch for LNBs - supporting
zero volt gate switching
topology.
•22kHz tone detection for band switching
•Compliant with ASTRA control specifications
•SSOP surface mount package
The AT1511 includes bias circuits to drive up to
three external FETs. A control input to the
device selects either one of two FETs as
operational
using
0V
gate
switching
methodology, the third FET is permanently
active. This feature is particularly used as an
LNB polarisation switch. Also specific to LNB
applications is the enhanced 22kHz tone
detection and logic output feature which is used
Applications
˙Satellite receiver LNBs
˙Private mobile radio (PMR)
˙Cellular telephones
to enable high and low band frequency switching.
The detector has been specifically designed to
reject inerference such as low frequency signals
and DiSEqCTM tone bursts - without the use of
additional external components.
Drain current setting of the AT1511 is user
selectable over the range 0 to 15mA, this is
achieved with the addition of a single resistor.
The series also offers the choice of FET drain
voltage, the AT1511 gives 2 volts.
These devices are unconditionally stable over
the full working temperature with the FETs in
place, subject to the inclusion of the
recommended gate and drain capacitors. These
ensure RF stability and minimal injected noise.
It is possible to use less than the devices full
complement of FET bias controls, unused drain
and gate connections can be left open circuit
without affecting operation of the remaining bias
circuits.
In order to protect the external FETs the circuits
have been designed to ensure that, under any
conditions including power up/down transients,
the gate drive from the bias circuits cannot
exceed the range -3.5V to 1V. Furthermore if the
negative rail experiences a fault condition, such
as overload or short circuit, the drain supply to
the FETs will shut down avoiding excessive
current flow.
The AT1511 are available in SSOP20 for the
minimum in device size. Device operating
temperature is -40 to 70°C to suit a wide range
of environmental conditions.
Aimtron reserves the right without notice to change this circuitry and specifications.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email: service@aimtron.com.tw
1
AT1511
Preliminary product Information
FET BIAS CONTROLLER AND TONE DETECTION
Block Diagram
(a) Drain Voltage & Current Controller
(b)Polarisation Switch
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email: service@aimtron.com.tw
2
AT1511
Preliminary product Information
FET BIAS CONTROLLER AND TONE DETECTION
(c)Tone Detection
Pin Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin name
G1
D1
G2
D2
G3
D3
GND
CP
CN
N.C.
VOUT
LB
HB
LOV
FOUT
N.C.
FIN
VPOL
ICTL
VCC
Function
1st Gate output voltage Pin
1st Drain output voltage Pin
2nd Gate output voltage Pin
2nd Drain output voltage Pin
3rd Gate output voltage Pin
3rd Drain output voltage Pin
Ground Pin
Positive OSC output Pin
Negative OSC output Pin
No connect Pin
Negative voltage output Pin
Error Amplifier output Pin
Error Amplifier inverted output Pin
Error Amplifier input Pin
Filter input Pin
No connect Pin
Filter output Pin
Polarisation switch controller Pin
Drain Current set Resistor connect Pin
Supply voltage Pin
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email: service@aimtron.com.tw
3
AT1511
Preliminary product Information
FET BIAS CONTROLLER AND TONE DETECTION
Pin Configuration
Ordering Information
Part number
Package
Marking
AT1511R
AT1511R_GRE
SSOP20
SSOP20,Green
AT1511R
AT1511R, date code with one bottom line
Absolute maximum ratings (Ta = 25oC)
Parameter
Power supply voltage
Supply Current
Input Voltage
Drain Current
Operating temperature
Storage temperature
Power dissipation
Symbol
VCC
ICC
VPOL
VD
Topr
Tstg
Pd
Limits
-0.6~12
100
25
0~15
-40~+70
-50~+85
500
unit
V
mA
V
mA
o
C
o
C
mW
Recommended operating conditions (Ta = 25oC)
Parameter
Power supply voltage
Symbol
VCC
Limits
5~10
unit
V
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email: service@aimtron.com.tw
4
AT1511
Preliminary product Information
FET BIAS CONTROLLER AND TONE DETECTION
Electrical characteristics
(Unless otherwise stated, Ta=25°C, VCC=5V, ID=10mA, RCTL=33kΩ)
Parameter
Symbol Min.
Typ. Max. Unit
Conditions
Supply Voltage
VCC
5
-10
V
-6
10
mA ID1 to ID3=0
I =0,ID2 to ID3=10mA,
-25
35
mA D1
VPOL=14V
ID2=0,ID1 to ID3=10mA,
Supply Current
ICC
-25
35
mA
VPOL=15.5V
-16
25
ID1 to ID3=0, ILB=10mA
-16
25
mA ID1 to ID3=0, IHB=10mA
-3.5
-3.0
-2.5
V IOUT= 0
Negative Voltage
VOUT
---2.4
V IOUT= -200µA
Drain Output Noise Voltage
END
--0.02
VPP CG=4.7nF, CD=10nF
Gate Output Noise Voltage
ENG
--0.005
VPP CG=4.7nF, CD=10nF
Oscillator Freq.
fo
200
350
800
kHz
DRAIN
Drain Current
ID
8
10
12
mA
Drain Current Charge with VCC
-0.5
-%/V VCC=5 to 10V
∆IDV
Drain Current Charge with Tj
%/℃ Tj=-40 to +70°C
-0.05
-∆IDT
VD1
1.8
2.0
2.2
V ID1=10mA, VPOL=15.5V
Drain Voltage
VD2
1.8
2.0
2.2
V ID2=10mA, VPOL=14V
VD3
1.8
2.0
2.2
V ID3=10mA
Drain Voltage Charge with VCC ∆VDV
-0.5
-%/V VCC=5 to 12V
Drain Voltage Charge with Tj
-50
-ppm Tj=-40 to +70°C
∆VDT
IL1
--10
µA VD1=0.5V, VPOL=14V
Leakage Current
IL2
--10
µA VD2=0.5V, VPOL=15.5V
GATE
Gate Output Current Range
IGO
-30
-2000
µA
VG10 -0.05
0
0.05
V ID1=0, VPOL=14V, IGO1=0
ID1=12mA, VPOL=15.5V,
VG1L
-3.5
-2.9
-2.0
V
Gate1 Output Voltage
IGO1=-10µA
ID1=8mA, VPOL=15.5V,
0.4
0.75
1.0
V
VG1H
IGO1=0
VG20 -0.05
0
0.05
V ID2=0, VPOL=15.5V, IGO2=0
ID2=12mA, VPOL=14V, IGO2=Gate2 Output Voltage
VG2L
-3.5
-2.9
-2.0
V
10µA
0.4
0.75
1.0
V ID2=8mA, VPOL=14V, IGO2=0
VG2H
VG3L
-3.5
-2.9
-2.0
V ID3=12mA, IGO3=-10µA
Gate3 Output Voltage
VG3H
0.4
0.75
1.0
V ID3=8mA, IGO3=0
TONE DETECTION
Input Bias Current
IB
0.02
0.07
0.25
µA RF1=150kΩ
Output Voltage
VOUT
1.75
1.95
2.05
V RF1=150kΩ
Output Current
IOUT
400
520
650
µA VOUT=1.96V, VFIN=2.1V
Voltage Gain
GV
-46
-dB f=22kHz,VIN=1mV
Rejection Frequency
fR
1.0
7.5
-kHz V(AC)in=1V p/p sq.w
VCC-1.8
LOV Volt. Range
VLOV
-0.5
-V IL=50mA(LB or HB)
LOV Bias Current
ILOV
0.02
0.15
1.0
µA VLOV=0
-3.5
-2.75
-2.5
V VLOV=0, IL=-10µA, Enabled
LB Output Low
VLBL
-0.01
0
0.01
V VLOV=3V, IL=0, Enabled
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email: service@aimtron.com.tw
5
AT1511
Preliminary product Information
FET BIAS CONTROLLER AND TONE DETECTION
VHBH
-0.025
2.9
-3.5
-0.01
-0.025
2.9
0
3.0
-2.75
0
0
3.0
0.025
3.1
-2.5
0.01
0.025
3.1
V
V
V
V
V
V
IPOL
10
20
40
µA
Threshold Voltage
VTPOL
14
14.75
15.5
V
Switching Speed
TSPOL
--
--
100
ms
LB Output High
VLBH
HB Output Low
VHBL
HB Output High
POLARITY SWITCH
Input Current
VLOV=0, IL=10mA, Disabled
VLOV=3V,IL=50mA,Disabled
VLOV=0, IL=-10µA,Disabled
VLOV=3V, IL=0, Disabled
VLOV=0, IL=10mA, Enabled
VLOV=3V, IL=50mA,Enabled
VPOL=25V(Applied via
RPOL=10kΩ)
VPOL=25V(Applied via
RPOL=10kΩ)
VPOL=25V(Applied via
RPOL=10kΩ)
Test Circuit
(a) LOV Connected to ground
(b) LOV Connected to VOSC
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email: service@aimtron.com.tw
6
AT1511
Preliminary product Information
FET BIAS CONTROLLER AND TONE DETECTION
Application Circuit
Application Information
(a) LOV Connected to ground
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email: service@aimtron.com.tw
7
AT1511
Preliminary product Information
FET BIAS CONTROLLER AND TONE DETECTION
(b) LOV Connected to VOSC
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email: service@aimtron.com.tw
8
AT1511
Preliminary product Information
FET BIAS CONTROLLER AND TONE DETECTION
Package Outlines : 20-pin SSOP
SYMBOL
A
A1
A2
b
C
D
E
E1
L
e
y
θ
MILLIMETERS
MIN
TYP
MAX
1.47
1.60
1.73
0.10
0.25
1.37
1.45
1.52
0.23
0.25
0.36
0.19
0.20
0.25
8.53
8.64
8.74
5.79
5.99
6.20
3.81
3.91
3.99
0.38
0.71
1.27
0.64
0.076
0°
8°
MIN
0.058
0.004
0.054
0.009
0.0075
0.336
0.228
0.150
0.015
0°
INCHES
TYP
0.063
0.057
0.010
0.008
0.340
0.236
0.154
0.028
0.025
-
MAX
0.068
0.010
0.060
0.014
0.0098
0.344
0.244
0.157
0.050
0.003
8°
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email: service@aimtron.com.tw
9