Note:
1. Composite Triple Beat, Cross Modulation, 2nd Order Distortion are all measured with 7 channels (T7 through T13) at 50 dBmV/ch output and
at 25C.
ISG56526
5 TO 65 MHz SILICON CATV
26 dB HYBRID AMPLIFIER
OUTLINE DIMENSIONS
(Units in mm [inches])
45.08 [1.775] MAX
38.10
0.25 [1.500
.010]
3.49 [.137]
14.85 [.585] MAX
2
4.00
[
.157
]
THRU
+0.14
-0.24
+.006
-.009
27.30 [1.075] MAX
8.04 [.317]
3.96 [.156]
[
.315
]
+.005
-.008
+0.13
-0.20
8.00
0.51
0.05 [.020
.002]
5.08
0.13 [.200
.005]
2.54
0.13 [.100
.005]
21.08 [.830]
10.20
0.25 [.402
.010]
25.40
0.25 [1.000
.010]
17.44 [.687]
9.84 [.387]
2
6-32 UNC-2B
4.20
0.13 [.165
.005]
[
.500
]
+.010
-.035
+0.25
-0.89
12.70
2
[
]
+4.15
-3.85
+.163
-.152
2.54
0.38 [.100
.015]
8.60
0.25
[.340
.010]
10.75
0.25 [.423
.010]
IN
OUT
GND
V
CC
1
9
2 3
5
7 8
PART NUMBER
ISG56526
SYMBOLS
PARAMETERS CONDITIONS
UNITS
MIN
TYP
MAX
Frequency Range
Min (f
L
) to Max (f
H
) +5%
MHz
5
65
G
Gain (S
21
)
F
H
= 65 MHz
dB
24.9
25.5
26.4
G
F
Gain Flatness
F
L
to F
H
dB
0.15
0.2
RL
IN
Input Return Loss (S
11
)
5-10 MHz
dB
29
35
RL
IN
Input Return Loss (S
11
)
11-65 MHz
dB
19
21
RL
OUT
Output Return Loss
5-10 MHz
dB
24
25
RL
OUT
Output Return Loss
11-65 MHz
dB
19
15
NF
Noise Figure
5-65 MHz NF
dB
3.0
3.3
Reverse Isolation (S
12
)
RF
OUT
to RF
IN
,
dB
29
over F
H
to F
L
CTB
Composite Triple Beat
See Note 1
dBc
-70
XM
Cross Modulation
See Note 1
dBc
-60
CSO
Composite 2nd Order Distortion
See Note 1
dBc
-72
RF
IN
to DC and DC to RF
OUT
0.3 MHz-5 MHz
dB
-10
P
1dB
Output Level at 1 dB Gain Compression
Single tone at
any channel frequency
dBmV
78
V
CC
Supply Voltage
V
24
I
OP
Operating Current
mA
180
190
200
Input & Output Impedance
ohms
75
ELECTRICAL CHARACTERISTICS
(V
CC
= 24 V, 10% T
A
= 25C, 75
System)
ISG56526
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.
REV. C
4/1/2005
1
303 S. Technology Court, Broomfield, CO 80021 303-327-3030 www.sirenza.com
FEATURES
FLAT GAIN RESPONSE FROM 5 TO 65 MHz: f =
0.2
dB
INPUT AND OUTPUT MATCHING TO 75 OHMS: R
L
= > 19 dB
LOW DISTORTION: P1dB =
78
dBmV
LOW NOISE: 3.0dB
AUTOMATED SURFACE MOUNT CONSTRUCTION
DESCRIPTION
The ISG56526 is a low noise, low distortion hybrid amplifier specified
for use in return path HFC Cable TV applications. The ISG56526 is
comprised of 100% surface mount components, including high
performance silicon transistors. It features excellent noise, gain, and
thermal stability across a wide range of operating conditions and
frequencies.The amplifiers are manufactured to ISO9002 standards
are very rugged and exhibit excellent unit to unit uniformity.
TYPICAL PERFORMANCE CURVES
(T
A
= 25C)
NOISE FIGURE
FdB
(0.5
/
DIV)
Frequency (6.0 MHz / DIV)
5
2.5
0
START
5.0 MHz
STOP
65.0 MHz
INPUT RETURN LOSS
START
5.0 MHz
STOP
65.0 MHz
CH1 S11
log
10 dB/ REF 0 dB
2
3
1: -25.817 dB
5.0 MHz
2: -27.749 dB
42.0 MHz
3: -23.660 dB
65.0 MHz
1
C
50
40
30
20
10
0
-10
-20
-30
-40
-50
GAIN vs. FREQUENCY
START
5.0 MHz
STOP
65.0 MHz
CH1 S21
log
1 dB/ REF 25 dB
C
1: 25.339 dB
42.0 MHz
1
+25
C
30
29
28
27
26
25
24
23
22
21
20
OUTPUT RETURN LOSS
START
5.0 MHz
STOP
65.0 MHz
CH1 S22
log
10 dB/ REF 0 dB
2
3
1: -24.783 dB
5.0 MHz
2: -24.215 dB
42.0 MHz
3: -25.795 dB
65.0 MHz
1
C
50
40
30
20
10
0
-10
-20
-30
-40
-50
82.00
81.00
80.00
79.00
78.00
77.00
76.00
75.00
74.00
73.00
72.00
71.00
70.00
40.00
42.00
44.00
46.00
48.00
50.00 52.00
54.00
56.00
1 dB Compression at 65 MHz
power in vs power out @ 65 MHz
Output
Power,
P
OUT
(dBmv)
Input Power, P
IN
(dBmv)
ABSOLUTE MAXIMUM RATINGS
1
(T
C
= 25 C unless otherwise noted)
SYMBOLS
PARAMETERS
UNITS
RATINGS
V
CC
DC Supply
V
DC
+28
V
IN
RF Input Voltage
(Single Tone)
dBmV
+65
T
C
Operating Case
Temperature Range
C
-20 to +100
T
STG
Storage Temperature
Range
C
-40 to +100
Note:
1. Operation in excess of any one of these parameters may result
in permanent damage.
ISG56526
DATA SUBJECT TO CHANGE WITHOUT NOTICE
REV. C
4/1/2005
2
303 S. Technology Court, Broomfield, CO 80021 303-327-3030 www.sirenza.com
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