04/2002
ACA2402
750/870 MHz CA TV
Push-Pull Line Amplifier
PRELIMINARY DA TA SHEET - Rev 1.1
Figure 1: Hybrid Application Diagram
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
APPLICATIONS
• CATV Line Amplifiers, System Amplifiers,
Distribution Nodes S7 Package
16 Pin Wide Body SOIC
with Heat Slug
PRODUCT DESCRIPTION
The ACA2402 is a highly linear, monolithic GaAs RF
amplifier that has been developed to replace, in new
designs, 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 ACA2402 is cascaded between
two appropriate transmission line baluns.
RF Input
RF Output
2A
2B1B
1A
ACA2402
2PRELIMINARY DATA SHEET - Rev 1.1
04/2002
ACA2402
Figure 2: Pin Out
T able 1: Pin Description
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND GND
I
SET
2A
IN
GND
2B
IN
1B
IN
1A
IN
GND GND
1B
OUT
2B
OUT
2A
OUT
1A
OUT
Bias 1A
Bias 1B
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2A2
NI
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TUO
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4A1
NI
tupnIA1reifilpmA21B2
TUO
dnatuptuOB2reifilpmA
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TUO
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7B2
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8DNGdnuorG61DNGdnuorG
PRELIMINARY DATA SHEET - Rev 1.1
04/2002 3
ACA2402
T able 2: Absolute Mimimum and Maximum Ratings
ELECTRICAL CHARACTERISTICS
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.
T able 3: Operating Ranges
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.
The device may be operated safely over these conditions; however, parametric
performance is guaranteed only over the conditions defined in the electrical
specifications.
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4PRELIMINARY DATA SHEET - Rev 1.1
04/2002
ACA2402
T able 4: AC and DC Electrical Specifications
(TA = +25 °C, VDD = +24 VDC)
Notes:
(1) Measured with baluns on the input and output of the device.
(2) Parts measured with 77 channels flat output, +42 dBmV per channel.
(3) Parts measured with 110 channels flat output, +40 dBmV per channel.
(4) Parts measured with 128 channels flat output, +40 dBmV per channel.
5. All specifications as measured on Evaluation Board (see Figures 13 & 14).
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PRELIMINARY DATA SHEET - Rev 1.1
04/2002 5
ACA2402
PERFORMANCE DA TA
Figure 3: Noise Figure vs. Frequency
2
2.5
3
3.5
4
4.5
5
0 100 200 300 400 500 600 700 800 900 1000
Frequency (MHz)
Noise Figure (dB)
Figure 4: Gain (S21) vs. Frequency
19
19.5
20
20.5
21
21.5
22
22.5
23
23.5
24
0 100 200 300 400 500 600 700 800 900 1000
Frequency (MHz)
Gain (dB)
6PRELIMINARY DATA SHEET - Rev 1.1
04/2002
ACA2402
-40
-35
-30
-25
-20
-15
-10
-5
0
5
0 100 200 300 400 500 600 700 800 900 1000
Frequency (MHz)
Return Loss (dB)
S11
S22
Figure 5: Input and Output Return Loss (S11 and S22) vs. Frequency
100
Figure 6: Isolation (S12) vs. Frequency
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
0 100 200 300 400 500 600 700 800 900 1000
Frequency (MHz)
Isolation (dB)
PRELIMINARY DATA SHEET - Rev 1.1
04/2002 7
ACA2402
-100
-95
-90
-85
-80
-75
-70
-65
-60
-55
-50
0 100 200 300 400 500 600 700 800
Frequency (MHz)
CTB (dBc)
Figure 7: CTB vs. Frequency (110 channels, +40 dBmV power, flat output)
-100
-95
-90
-85
-80
-75
-70
-65
-60
-55
-50
0 100 200 300 400 500 600 700 800
Frequency (MHz)
CSO (dBc)
Figure 8: CSO vs. Frequency (110 channels, +40 dBmV power, flat output)
-100
-95
-90
-85
-80
-75
-70
-65
-60
-55
-50
0 100 200 300 400 500 600 700 800
Frequency (MHz)
XMOD (dBc)
Figure 9: XMOD vs. Frequency (110 channels, +40 dBmV power, flat output)
8PRELIMINARY DATA SHEET - Rev 1.1
04/2002
ACA2402
-100
-95
-90
-85
-80
-75
-70
-65
-60
-55
-50
0 100 200 300 400 500 600
Frequency (MHz)
XMOD (dBc)
Figure 12: XMOD vs. Frequency (77 channels, +42 dBmV power, flat output)
-100
-95
-90
-85
-80
-75
-70
-65
-60
-55
-50
0 100 200 300 400 500 600
Frequency (MHz)
CSO (dBc)
Figure 11: CSO vs. Frequency (77 channels, +42 dBmV power, flat output)
-100
-95
-90
-85
-80
-75
-70
-65
-60
-55
-50
0 100 200 300 400 500 600
Frequency (MHz)
CTB (dBc)
Figure 10: CTB vs. Frequency (77 channels, +42 dBmV power, flat output)
PRELIMINARY DATA SHEET - Rev 1.1
04/2002 9
ACA2402
APPLICA TION INFORMA TION
Figure 13: Evaluation Board Layout
Figure 14: Evaluation Board Schematic
R2
C3
ACA2402
215
1
10
12
13
11
9
16
14
8
7
6
5
4
3
GND
ISET
1AIN
1AOUT
2AIN
2AOUT
GND
GND
GND
Bias 1B
GND
1BIN
2BIN 1BOUT
2BOUT
Bias 1A
C4
L1
V
t
C6
+24 V
L3 C10 TVS C15
+
24 V
L4
C8
C14
C9
C13
C12
RF OUT
L2
C7
C5
C1
C2
C11
RF IN
R3R1
I
DD
Adjust
T1
T2
10 PRELIMINARY DATA SHEET - Rev 1.1
04/2002
ACA2402
T able 5: Evaluation Board Parts List
Notes:
(1) N connector center pin should be approximately 80 mils in length.
(2) T1, T2 balun: 6.5 turns thru, as shown in Figure 15.
(3) Due to the power dissapation of this device, the printed circuit board should be mounted / attached to a heat sink.
(4) 200 mA minimum current rating.
Figure 15: Balun Drawing
Keep leads twisted
Wrap-around metal
at corners
-or-
vias
Metalized traces on P.C.B.
Pin #1
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PRELIMINARY DATA SHEET - Rev 1.1
04/2002 11
ACA2402
Figure 16: S7 Package Outline - 16 Pin Wide Body SOIC with Heat Slug
P ACKAGE OUTLINE
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.
IMPORTANT NOTICE
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
E-mail: Mktg@anadigics.com
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.
PRELIMINARY DATA SHEET - Rev 1.1
04/2002
12
ACA2402
ORDERING INFORMA TION
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