Application Note

Application Note
Using the ACA1206 at +8V and +5V
Supply Voltages
Rev 0
General Description
Although the ACA1206 Line Amplifier IC is designed
for optimum operation with a +12 VDC supply, it is possible to operate the part at reduced supply voltages,
with some performance reduction.
For such an operation, a slight change in external bias
conditions has to be implemented, depending on the
voltage level chosen.
Table 1: Summary of Typical Single Part Performance
SUPPLY VOLTAGE
+12
+12V
+8
+5
V
Current
325
195
300
160
mA
Gain
14.5
14.2
14.7
14.3
dB
CTB
112 ch flat +45 dBmV
112 ch flat +37 dBmV
112 ch flat +32 dBmV
-76
-
-67
-
-72
-
-65
dBc
CSO
112 ch flat +45 dBmV
112 ch flat +37 dBmV
112 ch flat +32 dBmV
-77
-
-81
-
-81
dBc
XMOD
112 ch flat +45 dBmV
112 ch flat +37 dBmV
112 ch flat +32 dBmV
-65
-
-65
-
-57
dBc
-78
-57
-
Table 2: Connections for Proper Bias
(325 mA)
12 VOLTS
(195 mA)
12 VOLTS
8 VOLTS
5 VOLTS
Pin 2
No Connection
(Open)
No Connection
(Open)
33K to GND
R3
5.1K to GND
R3
Pin 7
2.0K to VDD
5.1K to VDD
1.3K to VDD (+8V)
R1
2.2K to VDD (+5V)
R1
SUPPLY VOLTAGE
07/2013
Using the ACA1206 at +8V and +5V Supply Voltages
+8Vdc
to
+
SMBJ8V0A
VDD
VDD
0.01uF
47uF
R3
RF
33K
1
16
2
15
3
IN
T1
ACA1206
470nH
14
13
330pF
5
12
330pF
6
11
7
10
8
9
0.1uF
4
0.1uF
T2
RF
NC
OUT
470nH
R1
0.01uF
1.3K
VDD
Figure 1: Test Circuit for +8V VDD
Figure 2: CTB at +8V, 300 mA
112 Channels, Flat, +37 dBmV Output
-60
-65
CTB (dBc)
-70
-75
-80
-85
-90
0
2
100
200
300
400
500
Frequency (MHz)
Application Note - Rev 0
07/2013
600
700
800
Using the ACA1206 at +8V and +5V Supply Voltages
Figure 3: CSO at +8V, 300 mA
112 Channels, Flat, +37 dBmV Output
-70
-75
CSO (dBc)
-80
-85
-90
-95
-100
0
100
200
300
400
500
Frequency (MHz)
600
700
800
600
700
800
Figure 4: XMOD at +8V, 300 mA
112 Channels, Flat, +37 dBmV Output
-50
-55
XMOD (dBc)
-60
-65
-70
-75
-80
0
3
100
200
300
400
500
Frequency (MHz)
Application Note - Rev 0
07/2013
Using the ACA1206 at +8V and +5V Supply Voltages
Figure 5: S11 at +8V
0
-5
-10
S11 (dB)
-15
-20
-25
-30
-35
-40
0
100
200
300
400
500
600
Frequency (MHz)
700
800
900
1000
700
800
900
1000
Figure 6: S21 at +8V
17.0
16.5
16.0
15.5
S21 (dB)
15.0
14.5
14.0
13.5
13.0
12.5
12.0
0
4
100
200
300
400
500
600
Frequency (MHz)
Application Note - Rev 0
07/2013
Using the ACA1206 at +8V and +5V Supply Voltages
Figure 7: S12 at +8V
0
-5
-10
S12 (dB)
-15
-20
-25
-30
-35
-40
0
100
200
300
400
500
600
Frequency (MHz)
700
800
900
1000
700
800
900
1000
Figure 8: S22 at +8V
0
-5
-10
S22 (dB)
-15
-20
-25
-30
-35
-40
0
5
100
200
300
400
500
600
Frequency (MHz)
Application Note - Rev 0
07/2013
Using the ACA1206 at +8V and +5V Supply Voltages
+5Vdc
to
+
SMBJ5V0A
VDD
VDD
0.01uF
47uF
R3
RF
5.1K
1
16
2
15
3
IN
T1
ACA1206
470nH
14
13
330pF
5
12
330pF
6
11
7
10
8
9
0.1uF
4
0.1uF
T2
RF
NC
OUT
470nH
R1
0.01uF
2.2K
VDD
Figure 9: Test Circuit for +5V VDD
Figure 10: CTB at +5V, 160 mA
112 Channels, Flat, +32 dBmV Output
-50
-55
CTB (dBc)
-60
-65
-70
-75
-80
0
6
100
200
300
400
500
Frequency (MHz)
Application Note - Rev 0
07/2013
600
700
800
Using the ACA1206 at +8V and +5V Supply Voltages
Figure 11: CSO at +5V, 160mA
112 Channels, Flat, +32 dBmV Output
-70
-75
CSO (dBc)
-80
-85
-90
-95
-100
0
100
200
300
400
500
Frequency (MHz)
600
700
800
600
700
800
Figure 12: XMOD at +5V, 160 mA
112 Channels, Flat, +32 dBmV Output
-40
-45
XMOD (DBc)
-50
-55
-60
-65
-70
0
7
100
200
300
400
500
Frequency (MHz)
Application Note - Rev 0
07/2013
Using the ACA1206 at +8V and +5V Supply Voltages
Figure 13: S11 at +5V
0
-5
-10
S11 (dB)
-15
-20
-25
-30
-35
-40
0
100
200
300
400
500
600
Frequency (MHz)
700
800
900
1000
800
900
1000
Figure 14: S21 at +5V
17.0
16.5
16.0
15.5
S21 (dB)
15.0
14.5
14.0
13.5
13.0
12.5
12.0
0
8
100
200
300
400
500
600
Frequency (MHz)
Application Note - Rev 0
07/2013
700
Using the ACA1206 at +8V and +5V Supply Voltages
Figure 15: S12 at +5V
0
-5
-10
S12 (dB)
-15
-20
-25
-30
-35
-40
0
100
200
300
400
500
600
Frequency (MHz)
700
800
900
1000
Figure 16: S22 at +5V
0
-5
-10
S22 (dB)
-15
-20
-25
-30
-35
-40
0
9
100
200
300
400
500
600
Frequency (MHz)
Application Note - Rev 0
07/2013
700
800
900
1000
Using the ACA1206 at +8V and +5V Supply Voltages
ANADIGICS, Inc.
141 Mount Bethel Road
Warren, New Jersey 07059, U.S.A.
Tel: +1 (908) 668-5000
Fax: +1 (908) 668-5132
URL: http://www.anadigics.com
IMPORTANT NOTICE
ANADIGICS, Inc. reserves the right to make changes to its products or to discontinue any product at any time without notice.
The product specifications contained in Advanced Product Information sheets and Preliminary Data Sheets are subject to
change prior to a product’s formal introduction. Information in Data Sheets have been carefully checked and are assumed
to be reliable; however, ANADIGICS assumes no responsibilities for inaccuracies. ANADIGICS strongly urges customers
to verify that the information they are using is current before placing orders.
warning
ANADIGICS products are not intended for use in life support appliances, devices or systems. Use of an ANADIGICS product
in any such application without written consent is prohibited.
10
Application Note - Rev 0
07/2013