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.
ISG56531
5 TO 65 MHz SILICON CATV
31 dB HYBRID AMPLIFIER
DESCRIPTION
The ISG56531 is a low noise, low distortion hybrid amplifier specified
for use in return path HFC Cable TV applications. The ISG56531 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.
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
ISG56531
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
29.5
30.4
31
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
27.0
33.0
RL
IN
Input Return Loss (S
11
)
11-65 MHz
dB
20.0
23.0
RL
OUT
Output Return Loss
5-10 MHz
dB
25.0
27.0
RL
OUT
Output Return Loss
11-65 MHz
dB
17.5
19.0
NF
Noise Figure
5-65 MHz NF
dB
3.0
3.3
Reverse Isolation (S
12
)
RF
OUT
to RF
IN
,
dB
34
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
-76
-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 at +25C
mA
170
200
at -20C to +100C
220
Input & Output Impedance
ohms
75
ELECTRICAL CHARACTERISTICS
(V
CC
= 24 V, 10% T
A
= 25C, 75
System)
REV. C
4/1/2005
1
303 S. Technology Court, Broomfield, CO 80021 303-327-3030 www.sirenza.com
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.
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
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: -31.578 dB
5.0 MHz
2: -31.014 dB
42.0 MHz
3: -24.370 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
+25C
1 dB/ REF 30 dB
2
1: 30.492 dB
5.0 MHz
2: 30.580 dB
42.0 MHz
3: 30.670 dB
65.0 MHz
C
3
1
35
34
33
32
31
30
29
28
27
26
25
OUTPUT RETURN LOSS
START
5.0 MHz
STOP
65.0 MHz
CH1 S22
log
10 dB/ REF 0 dB
2
3
1: -26.767 dB
5.0 MHz
2: -27.998 dB
42.0 MHz
3: -23.321 dB
65.0 MHz
1
C
50
40
30
20
10
0
-10
-20
-30
-40
-50
81.00
80.00
79.00
78.00
77.00
76.00
75.00
74.00
73.00
72.00
71.00
70.00
69.00
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.
ISG56531
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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