ACA2408 [ANADIGICS]
870 MHz, 34 dB Gain CATV Push-Pull Line Amplifier; 870 MHz的34 dB增益推挽线路放大器
| 型号： | ACA2408 |
| 厂家： | 
ANADIGICS, INC |
| 描述： | 870 MHz, 34 dB Gain CATV Push-Pull Line Amplifier |
| 文件： | 总12页 (文件大小：209K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ACA2408
870 MHz, 34 dB Gain
CATV Push-Pull Line Amplifier
PRELIMINARY DATA SHEET - Rev 1.0
FEATURES
•
•
•
•
34dB Gain
Very Low Distortion
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
APPLICATIONS
•
Line Extenders, Apartment House Amplifiers,
System Amplifiers, Distribution Nodes
S7 Package
16 Pin Wide Body SOIC
with Heat Slug
PRODUCT DESCRIPTION
The ACA2408 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 ACA2408 is cascaded
between two appropriate transmission line baluns.
1A
2A
1:1
RF Input
1:1
RF Output
1B
2B
ACA2408
Figure 1: HybridApplication Diagram
07/2003
ACA2408
1
2
3
4
5
6
7
8
GND
GND
1AOUT
Bias1A
2AOUT
2BOUT
Bias 1B
1BOUT
GND
16
15
14
13
12
11
10
9
IN
2A
GND
IN
1A
1BIN
SET
I
2BIN
GND
Figure 2: Pin Out
Table 1: Pin Description
PIN
NAME
GND
2AIN
DESCRIPTION
Ground
PIN
16
NAME
GND
DESCRIPTION
1
2
3
Ground
Amplifier 2A Input
Ground
15
1AOUT
Amplifier 1A Output
Bias for 1A Amplifier
GND
14
Bias 1A
Amplifier 2A Output and
Supply
4
5
1AIN
1BIN
Amplifier 1A Input
Amplifier 1B Input
13
12
2AOUT
2BOUT
Amplifier 2B Output and
Supply
6
7
8
I
SET
Current Adjust
Amplifier 2B Input
Ground
11
10
9
Bias 1B
1BOUT
Bias for 1B Amplifier
Amplifier 1B Output
Ground
2BIN
GND
GND
PRELIMINARY DATA SHEET - Rev 1.0
2
07/2003
ACA2408
ELECTRICAL CHARACTERISTICS
Table 2: Absolute Mimimum and Maximum Ratings
PARAMETER
MIN
MAX
+28
UNIT
VDC
dBmV
°C
Supply (pins 12, 13)
RF Power at Inputs (pins 4, 5)
Storage Temperature
Soldering Temperature
Soldering Time
0
-
-65
-
+55
+150
+260
5.0
°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.
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.
Table 3: Operating Ranges
PARAMETER
MIN
-
TYP
+24
+3
-
MAX
-
UNIT
VDC
VDC
MHz
°C
Supply: VDD (pins 12, 13)
Voltage at ISET (pin 6)
RF Frequency
-
-
40
-40
870
+110
Case Temperature
-
The device may be operated safely over these conditions; however, parametric
performance is guaranteed only over the conditions defined in the electrical
specifications.
PRELIMINARY DATA SHEET - Rev 1.0
3
07/2003
ACA2408
Table 4: AC and DC Electrical Specifications
(TA = +25 °C, VDD = +24 VDC)
PARAMETER
MIN
TYP
MAX
UNIT
COMMENTS
Gain (1) @ 870 MHZ
33.5
34.8
0
-
-
dB
dB
dB
dB
Cable Equivalent Slope (1)
Gain Flatness (1) to 870 MHZ
Noise Figure (1)
-
-
-
0.2
2.0
-
4.0
CTB (1)
-
-
-
-70
-68
-65
-58
-58
-55
dBc
dBc
dBc
110 Channels (2)
CSO (1)
110 Channels (2)
XMOD (1)
110 Channels (2)
-
-
-
-
-
25
28
26
20
21
-20
-
-
-15.5
-14
40 to 80 MHz
80 to 160 MHz
160 to 320 MHz
320 to 640 MHz
640 to 870 MHz
Input Return Loss (1)
dB
(75 system)
Ω
-
-
-
-
-
27
24
20
17
17
-20
-
-
-15.5
-14
40 to 80 MHz
80 to 160 MHz
160 to 320 MHz
320 to 640 MHz
640 to 870 MHz
Output Return Loss (1)
dB
mA
(75
Ω
system)
Supply Current
-
325
340
4.5
Thermal Resistance
-
-
°C/W
Notes:
(1) Measured with baluns on the input and output of the device.
(2) Flat output, +44 dBmV per channel.
PRELIMINARY DATA SHEET - Rev 1.0
4
07/2003
ACA2408
PERFORMANCEDATA
Figure 3: Gain (S21) vs. Frequency
(TA = +25 °C, VDD = +24 V, 75Ω system)
36.0
35.5
35.0
34.5
34.0
33.5
33.0
0
100
200
300
400
500
600
700
800
900
1000
Frequency (MHz)
Figure 4: Input and Output Return Loss
(S11 and S22) vs. Frequency
(TA = +25 °C, VDD = +24 V, 75Ω system)
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
S11
S22
-50
0
100
200
300
400
500
600
700
800
900
1000
Frequency (MHz)
PRELIMINARY DATA SHEET - Rev 1.0
07/2003
5
ACA2408
PERFORMANCE DATA
Figure 5: Isolation (S12) vs. Frequency
(TA = +25 °C, VDD = +24 V, 75Ω system)
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
0
100
200
300
400
500
600
700
800
900
1000
Frequency (MHz)
Figure 6: Noise Figure vs. Frequency
(TA = +25 °C, VDD = +24 V)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
100
200
300
400
500
600
700
800
900
1000
Frequency (MHz)
PRELIMINARY DATA SHEET - Rev 1.0
6
07/2003
ACA2408
PERFORMANCE DATA
Figure 7: CTB vs. Frequency
(110 channels, +44 dBmV output power, flat output)
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
0
100
200
300
400
500
600
700
800
Frequency (MHz)
Figure 8: CSO vs. Frequency
(110 channels, +44 dBmV output power, flat output)
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
0
100
200
300
400
500
600
700
800
Frequency (MHz)
Figure 9: XMOD vs. Frequency
(110 channels, +44 dBmV output power, flat output)
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
0
100
200
300
400
500
600
700
800
Frequency (MHz)
PRELIMINARY DATA SHEET - Rev 1.0
7
07/2003
ACA2408
Figure 10: CTB vs. Frequency
(132 channels, +44 dBmV output power, flat output)
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
0
100
200
300
400
500
600
700
800
900
Frequency (MHz)
Figure 11: CSO vs. Frequency
(132 channels, +44 dBmV output power, flat output)
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
0
100
200
300
400
500
600
700
800
900
Frequency (MHz)
Figure 12: XMOD vs. Frequency
(132 channels, +44 dBmV output power, flat output)
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
0
100
200
300
400
500
600
700
800
900
Frequency (MHz)
PRELIMINARY DATA SHEET - Rev 1.0
8
07/2003
ACA2408
APPLICATION INFORMATION
Vt
+24 V
AC\AK 03/4
R2
C10
T2
L1
C6
L3
C4
Input
C1
C2
L5 C8
C12
T1
L6
C9
C11
C3
R3
C7
L2
Output
C5
L4
R1
C14
I adj
+24 V
+
34dB 75
Figure 13: Evaluation Board Layout
C4
R2
C6
1
2
16
15
14
13
12
11
10
9
C10
TVS
C15
GND
2AIN
GND
1AIN
1BIN
ISET
GND
1AOUT
L1
L3
C1
C2
RF IN
3
4
5
6
7
8
Bias 1A
2AOUT
RF OUT
T2
C8
L5
T1
C11
C12
2BOUT
L6
C9
Bias 1B
1BOUT
C7
2BIN
GND
R1
R3
C3
L4
GND
L2
C14
ACA2408
C5
(+24 V)
Figure 14: Evaluation Board Schematic
PRELIMINARY DATA SHEET - Rev 1.0
9
07/2003
ACA2408
Table 5: Evaluation Board Parts List
REF
DESCRIPTION
QTY
VENDOR
MURATA
VENDOR P/N
C1, C2, C3, C6, C7,
C10, C14
0.01 µF CHIP CAP
7
GRM39X7R103K50V
C4, C5, C8, C9
C11, C12
C15
470 pF CHIP CAP
0.5 pF CHIP CAP
4
2
1
MURATA
GRM39X7R471K50V
GRM36COG0R5C50
P5275-ND
MURATA
47 µF ELECT CAP
NOT USED
DIGI-KEY CORP
R1, R2
TVS
TVS 24 VOLT 600 WATT
680 nH INDUCTOR
1.5 nH CHIP INDUCTOR
1
4
2
1
DIGI-KEY CORP
COIL CRAFT
TOKO
SMBJ24ACCCT-ND
1008CS-681XKBC
PTL2012-F1N5C
P13KGCT-ND
(4)
L1, L2, L3, L4
L5, L6, (4)
R3
13 K Resistor
DIGI-KEY CORP
Ω
Ω
75 N MALE PANEL
PASTERNACK
ENTERPRISES
CONNECTOR (1)
2
2
PE4504
MOUNT
Ferrite Core
Wire
FAIR-RITE
2843002702
T1, T2 (2)
(BALUN)
MWS WIRE IND.
T-2361429-20
STANDARD
PRINTED CIRC. INC.
Printed Circuit Board (3)
300 X 160 MILS
1
1
24V2X1AC75
14996Y
INDIUM CORP OF
AMERICA
INDIUM
Notes:
(1) N connector center pin should be approximately 80 mils in length.
(2) T1, T2, balun: 4.5 turns thru, as shown in Figure 15.
(3) Due to the power dissipation of this device, the printed circuit board should be mounted / attached to a heat sink.
(4) 400 mA minimum current rating.
NOTES:
1. MATERIAL:
CORE: FAIR-RITE (2843002702)
WIRE: MWS WIRE IND.
T-23614929-20
4.5 TIMES THRU AS SHOWN
Figure 15: Balun Drawing
PRELIMINARY DATA SHEET - Rev 1.0
10
07/2003
ACA2408
PACKAGE OUTLINE
Figure 16: S7 Package Outline - 16 Pin Wide Body SOIC with Heat Slug
PRELIMINARY DATA SHEET - Rev 1.0
11
07/2003
ACA2408
ORDERING INFORMATION
TEMPERATURE
PACKAGE
DESCRIPTION
ORDER NUMBER
ACA2408S7P2
ACA2408S7P0
COMPONENT PACKAGING
1,500 piece tape and reel
RANGE
16 Pin Wide Body
SOIC with Heat Slug
-40 to +110 °C
16 Pin Wide Body
SOIC with Heat Slug
-40 to +110 °C
Plastic tubes (50 pieces per tube)
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
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.
PRELIMINARY DATA SHEET - Rev 1.0
12
07/2003
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