ISG56518
5 TO 65 MHz SILICON CATV
18 dB HYBRID AMPLIFIER
FEATURES
OUTLINE DIMENSIONS (Units in mm [inches])
• FLAT GAIN RESPONSE FROM 5 TO 65 MHz: f = ±0.2 dB
ISG56518
45.08 [1.775] MAX
• INPUT AND OUTPUT MATCHING TO 75 OHMS: RL = > 22 dB
38.10 ± 0.25 [1.500 ± .010]
3.49 [.137]
3.96 [.156]
+0.14
-0.24
+.006
-.009
• LOW DISTORTION: P1dB = 78 dBmV
• LOW NOISE: 3.9dB
2× φ4.00
[
φ.157
]
THRU
+0.13
-0.20
+.005
]
-.008
8.00
[
.315
14.85 [.585] MAX
8.04 [.317]
27.30 [1.075] MAX
VCC
5
• AUTOMATED SURFACEMOUNT CONSTRUCTION
1
9
IN
OUT
DESCRIPTION
5.08 ± 0.13 [.200 ± .005]
2.54 ± 0.13 [.100 ± .005]
2
3 7 8
0.51 ± 0.05 [.020 ± .002]
GND
TheISG56518 isalownoise,lowdistortionhybridamplifierspecifiedfor
use in return path HFC Cable TV applications. The ISG56518 is
comprisedof100%surfacemountcomponents,includinghighperfor-
mancesilicon transistors.Itfeaturesexcellentnoise,gain,andthermal
stabilityacrossawiderangeofoperatingconditionsandfrequencies.The
amplifiersaremanufacturedtoISO9002standards,areveryruggedand
exhibitexcellentunittounituniformity.
+4.15
-3.85
+.163
2× φ
[
φ
]
-.152
21.08 [.830]
+0.25
-0.89
+.010
-.035
12.70
[
.500
]
8.60 ± 0.25
[.340 ± .010]
10.75 ± 0.25 [.423 ± .010]
2.54 ± 0.38 [.100 ± .015]
4.20 ± 0.13 [.165 ± .005]
2× 6-32 UNC-2B
10.20 ± 0.25 [.402 ± .010]
9.84 [.387] 25.40 ± 0.25 [1.000 ± .010]
17.44 [.687]
ELECTRICAL CHARACTERISTICS (VCC = 24 V, ± 10%, TA = 25°C, 75 Ohm System)
PART NUMBER
ISG56518
SYMBOLS
PARAMETERS AND CONDITIONS
Gain at f = 42 MHz
UNITS
MIN
TYP
MAX
GA
∆G
dB
dB
18
18.2
18.4
Gain Flatness
±0.15
RLIN
RLOUT
NF
Input Return Loss
dB
22
20
25
22
Output Return Loss
dB
Noise Figure
dB
3.9
-68
-58
-75
72
4.5
-63
-54
-69
CTB
XM
Composite Triple Beat1 (+50 dBmV/ch)
Cross Modulation1 (+50 dBmV/ch)
Composite 2nd Order Distortion1 (+50 dBmV/ch)
Output Power at 1 dB Gain Compression Point
Supply Voltage
dBc
dBc
dBc
dBmV
V
CSO
P1dB
VCC
IOP
24
Operating Current
mA
95
5
110
130
65
BW
Ω
Bandwidth
MHz
ohms
Input & Output Impedance
75
Note:
1. Composite Triple Beat, Cross Modulation, 2nd Order Distortion are all measured with 7channels (T7 through T13). at 50 dBmV/ch output and
at25°C.
Performance tests and ratings for Sirenza Microdevices products were performed internally by Sirenza and measured using specific computer systems and/or components and reflect the
approximate performance of the products as measured by those tests. Any difference in circuit implementation, test software, or test equipment may affect actual performance. The
information provided herein is believed to be reliable at press time and Sirenza Microdevices assumes no responsibility for the use of this information. All such use shall be entirely at the
users own risk. Prices and specifications for Sirenza Microdevices products are subject to change without notice. Buyers should consult Sirenza Microdevices standard terms and
conditions of sale for Sirenzas limited warranty with regard to its products. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party.
Sirenza Microdevices does not authorize or warrant any product for use in life-support devices and/or systems.
303 S. Technology Court, Broomfield, CO 80021
303-327-3030
www.sirenza.com
4/1/2005
REV. A
1