750/870 MHz CATV
Push-Pull Line Amplifier
FEATURES
•
•
•
•
•
•
•
•
•
•
22 dB Gain
Very Low Distortion
Excellent 75
Ω
Input and Output Match
Stable with High VSWR Load Conditions
Monolithic Design for Consistent Performance
Part-to-Part
Low DC Power Consumption
Surface Mount Package Compatible with
Automatic Assembly
Low Cost Alternative to Hybrids
Meets Cenelec Standards
Materials set consistent with RoHS Directives.
ACA2402E
Data Sheet - Rev 2.2
APPLICATIONS
•
CATV Line Amplifiers, System Amplifiers,
Distribution Nodes
S7 Package
16 Pin Wide Body SOIC
with Heat Slug
PRODUCT DESCRIPTION
The ACA2402E is a highly linear, monolithic GaAs RF
amplifier that has been developed as an alternative
to standard CATV hybrid amplifiers. Offered in a
convenient surface mount package, the MMIC
consists of two pairs of parallel amplifiers that are
optimized for exceptionally low distortion and noise
figure. A hybrid equivalent that provides flat gain
response and excellent input and output return
loss over the 40 to 870 MHz CATV downstream
band is formed when one ACA2402E is cascaded
between two appropriate transmission line baluns.
RF Input
1A
2A
1B
2B
RF Output
ACA2402E
Figure 1: Hybrid Application Diagram
12/2008
ACA2402E
1
2
3
4
5
6
7
8
GND
2A
IN
GND
1A
IN
1B
IN
I
SET
2B
IN
GND
Figure 2: Pin Out
GND
1A
OUT
Bias 1A
2A
OUT
2B
OUT
Bias 1B
1B
OUT
GND
16
15
14
13
12
11
10
9
Table 1: Pin Description
PIN
1
2
3
4
5
6
7
8
NAME
GND
2A
IN
GND
1A
IN
1B
IN
I
SET
2B
IN
GND
DESCRIPTION
Ground
Amplifier 2A Input
Ground
Amplifier 1A Input
Amplifier 1B Input
Current Adjust
Amplifier 2B Input
Ground
PIN
16
15
14
13
12
11
10
9
NAME
GND
1A
OUT
Bias 1A
2A
OUT
2B
OUT
Bias 1B
1B
OUT
GND
DESCRIPTION
Ground
Amplifier 1A Output
Bias for 1A Amplifier
Amplifier 2A Output and Supply
Amplifier 2B Output and Supply
Bias for 1B Amplifier
Amplifier 1B Output
Ground
2
Data Sheet - Rev 2.2
12/2008
ACA2402E
ELECTRICAL CHARACTERISTICS
Table 2: Absolute Mimimum and Maximum Ratings
PARAMETER
Supply (pins 12, 13)
RF Power at Inputs (pins 4, 5)
Storage Temperature
Soldering Temperature
Soldering Time
MIN
0
-
-65
-
-
MAX
+28
+75
+150
+260
5.0
UNIT
VDC
dBmV
°C
°C
Sec
Stresses in excess of the absolute ratings may cause permanent damage.
Functional operation is not implied under these conditions. Exposure
to absolute ratings for extended periods of time may adversely affect
reliability.
Notes:
1. Pins 2, 4, 5 and 7 should be AC-coupled. No external DC bias should
be applied.
2. Pin 6 should be AC-grounded and/or pulled to ground through a resistor
for current control. No external DC bias should be applied.
3. Pins 11 and 14 are bias feeds for input amplifiers 1A and 1B. No
external DC bias should be applied.
4. Pins 10 and 15 receive DC bias directly from pins 11 and 14. No other
external bias should be applied.
Table 3: Operating Ranges
PARAMETER
Supply: V
DD
(pins 12, 13)
RF Frequency
Case Temperature
MIN
-
40
-40
TYP
+24
-
-
MAX
-
870
+110
UNIT
VDC
MHz
°C
The device may be operated safely over these conditions; however, parametric
performance is guaranteed only over the conditions defined in the electrical
specifications.
Data Sheet - Rev 2.2
12/2008
3
ACA2402E
Table 4: AC and DC Electrical Specifications
(T
a
= +25 °C, V
dd
= +24 VDC)
PARAMETER
Gain
(1)
Cable Equivalent Slope
(1)
Gain Flatness
(1)
to 870 MHz
Noise Figure
(1)
MIN
21.0
-
-
-
-
-
-
-
-
-
-
-
-
18
230
-
TYP
21.8
0
0.2
3.5
-
-66
-63
-
-62
-59
-
-60
-57
22
250
-
MAX
22.5
-
-
4.0
-68
-
-
-62
-
-
-60
-
-
-
265
3.8
UNIT
dB
dB
dB
dB
COMMENTS
CTB
(1)
77 Channels
(2)
110 Channels
(3)
128 Channels
(3)
CSO
(1)
77 Channels
(2)
110 Channels
(3)
128 Channels
(3)
XMOD
(1)
77 Channels
(2)
110 Channels
(3)
128 Channels
(3)
Return Loss (Input/Output)
(1)
Supply Current
Thermal Resistance
dBc
dBc
dBc
dB
mA
o
75
system
C/W
Notes:
(1) Measured with baluns on the input and output of the device.
(2) Flat output, +42 dBmV per channel.
(3) Flat output, +40 dBmV per channel.
4. All specifications as measured on Evaluation Board (see Figures 7 & 8).
4
Data Sheet - Rev 2.2
12/2008
ACA2402E
PERFORMANCE DATA
5
Figure 3: Noise Figure vs. Frequency
4.5
Noise Figure (dB)
4
3.5
3
2.5
2
0
100
200
300
400
500
600
700
800
900
1000
Frequency (MHz)
24
23.5
23
22.5
Figure 4: Gain (S21) vs. Frequency
Gain (dB)
22
21.5
21
20.5
20
19.5
19
0
100
200
300
400
500
600
700
800
900
1000
Frequency (MHz)
Data Sheet - Rev 2.2
12/2008
5
