CHA2296
Ref. :DSCHA22962044 13-Feb.-02
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7
Specifications subject to change without notice
United Monolithic Semiconductors S.A.S.
Route Dpartementale 128 - B.P.46 - 91401 Orsay Cedex France
Tel. : +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
9- 19GHz Buffer Splitter Amplifier
GaAs Monolithic Microwave IC
Description
The CHA2296 is a broadband buffer splitter
three-stage monolithic amplifier.
It is designed for a wide range of applications,
from military to commercial communication
systems. The backside of the chip is both RF
and DC grounds. This helps simplify the
assembly process.
The circuit is manufactured with a PM-HEMT
process, 0.25m gate length, via holes through
the substrate, air bridges and electron beam
gate lithography.
It is available in chip form.
Main Features
Broadband performance : 9-19GHz
14dBm saturated output power.
16dB
1.5dB gain
Very good broadband matching
Low DC power consumption, 190mA @ 3.5V
Chip size : 2.26 X 1.33 X 0.10 mm
OUT 1
OUT 2
Vd
Vg
IN
Typical on wafer measurements : Gain (dB)
Main Characteristics
Tamb. = 25C
Symbol Parameter
Min
Typ
Max
Unit
Fop
Operating frequency range
9
19
GHz
G
Small signal gain
13
16
dB
Psat
Saturated Output power
12
14
dBm
Id_
small signal
Bias
current
190
250
mA
ESD Protection : Electrostatic discharge sensitive device. Observe handling precautions !
10
11
12
13
14
15
16
17
18
19
20
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22
Frequency (GHz)
Gain channel 1
Gain channel 2
CHA2296
9-19GHz Buffer Splitter Amplifier
Ref. : DSCHA22962044 13-Feb.-02
2/
7
Specifications subject to change without notice
Route Dpartementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
Electrical Characteristics for Broadband Operation
Tamb = +25C, Vd = 3.5V Vg tuned for Id=190mA
Symbol Parameter Min
Typ
Max
Unit
Fop
Operating frequency range (1)
9
19
GHz
G
Small signal gain (1)
13
16
dB
G
Small signal gain flatness (1)
1.5
dB
Is
Reverse isolation (1)
60
dB
Ic
Isolation between channels (1)
20
dB
Psat
Saturated output power (1)
12
14
dBm
VSWRin
Input VSWR (1)
2.0:1
VSWRout
Output VSWR (1)
2.0:1
Id_
small signal
Bias
current
190
250
mA
(1) These values are representative for on-wafer measurements that are made without bonding
wires at the RF ports.
Absolute Maximum Ratings
Tamb. = 25C (1)
Symbol Parameter
Values
Unit
Vds
Drain bias voltage_small signal
4.0
V
Ids
Drain bias current_small signal
300
mA
Vgs
Gate bias voltage
-2 to +0.4
V
Vdg
Negative Drain Gate voltage (= Vds Vgs)
+5
V
Pin
Maximum peak input power overdrive (2)
+15
dBm
Ta
Operating temperature range
-40 to +85
C
Tstg
Storage temperature range
-55 to +155
C
(1) Operation of this device above anyone of these parameters may cause permanent damage.
(2) Duration < 1s.
9-19GHz Power splitter Amplifier
CHA2296
Ref. : DSCHA22962044 13-Feb.-02
3/
7
Specifications subject to change without notice
Route Dpartementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
Typical Scattering Parameters ( On wafer Sij measurements )
Bias Conditions :
Vd = 3.5 Volt, Vg tuned for Id = 190 mA.
Channel Freq.
GHz
S11
dB
S11
/
/
/
/
S12
dB
S12
/
/
/
/
S21
dB
S21
/
/
/
/
S22
dB
S22
/
/
/
/
1 5 -12.34 -94.87
-66.94
-38.90
-2.14
41.09 -2.04
-88.40
1
6
-15.29 -102.89
-67.83
-87.89
5.84
-11.01 -3.64
-108.79
1
7
-17.46 -97.03
-66.67
-87.44
11.51
-68.31 -5.95
-127.83
1
8
-17.44 -90.47
-66.06
-140.51
14.82
-125.78 -8.74
-143.37
1
9
-16.63 -91.57
-67.50
-123.38
16.36
-177.87 -11.67
-156.13
1
10
-16.30 -97.50
-67.33
175.31
16.98
136.79 -15.00
-167.18
1
11
-16.41 -103.81
-65.23
-177.40
17.05
97.30 -18.81
-176.53
1
12
-16.72 -107.46
-69.95
145.63
17.17
61.74 -23.94
178.88
1
13
-17.15 -111.72
-66.02
138.93
16.99
27.77 -29.04
-146.27
1
14
-17.10 -110.94
-97.44
-155.97
16.72
-3.82 -31.35
-89.10
1
15
-16.93 -113.66
-70.70
166.71
16.76
-32.72 -28.61
-91.76
1
16
-16.76 -116.42
-63.72
170.65
16.59
-63.33 -22.22
-116.88
1
17
-16.59 -121.64
-70.22
97.77
16.29
-92.58 -21.30
-125.33
1
18
-16.80 -129.92
-64.92
154.63
16.01
-122.60 -19.35
-140.70
1
19
-18.71 -137.93
-66.62
-138.40
15.67
-151.31 -18.99
-154.19
1
20
-21.72 -133.29
-57.46
176.38
15.02
177.95 -17.24
-168.27
1
21
-22.50 -91.29
-60.06
117.94
14.10
148.71 -17.98
178.00
1
22
-18.17 -73.84
-66.35
142.93
13.15
119.32 -17.05
169.87
2 5 -12.32 -94.79
-67.52
-31.29
-4.49
37.49 -2.04
-88.02
2
6
-15.27 -102.90
-69.76
-103.63
3.64
-10.20 -3.61
-108.12
2
7
-17.46 -97.18
-66.21
-90.60
9.59
-65.41 -5.86
-127.23
2
8
-17.39 -90.48
-66.67
-140.90
13.21
-121.94 -8.59
-142.92
2
9
-16.63 -91.64
-66.58
-140.49
14.89
-173.34 -11.49
-155.45
2
10
-16.25 -97.89
-67.04
-155.99
15.65
141.31 -14.45
-167.89
2
11
-16.37 -103.76
-64.61
175.45
15.85
102.63 -18.12
-179.43
2
12
-16.71 -107.93
-65.01
-171.47
15.97
67.05 -22.97
170.53
2
13
-17.09 -111.39
-64.06
151.41
16.15
32.89 -30.44
174.52
2
14
-17.11 -110.96
-65.31
142.93
15.95
1.43 -34.60
-115.92
2
15
-16.84 -113.34
-64.26
156.24
15.97
-28.92 -27.80
-89.11
2
16
-16.78 -116.77
-61.83
107.47
15.84
-58.97 -24.72
-105.11
2
17
-16.51 -121.60
-72.17
144.18
15.65
-87.83 -22.65
-112.92
2
18
-16.82 -129.65
-69.62
130.95
15.55
-117.21 -20.65
-126.05
2
19
-18.61 -138.19
-64.20
168.06
15.28
-147.64 -19.63
-138.57
2
20
-21.50 -132.84
-60.17
135.42
14.89
-178.56 -18.58
-153.24
2
21
-22.46 -92.59
-60.24
126.24
13.93
151.11 -17.39
-164.66
2
22
-18.06 -74.29
-58.18
126.19
13.10
121.08 -16.21
-176.47
CHA2296
9-19GHz Buffer Splitter Amplifier
Ref. : DSCHA22962044 13-Feb.-02
4/
7
Specifications subject to change without notice
Route Dpartementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
Typical On wafer Measurements
Bias Conditions :
Vd = 3.5 Volt, Vg tuned for Id = 190 mA.
Gain for each channel versus frequency (dB)
Isolation between channels versus frequency (dB)
10
11
12
13
14
15
16
17
18
19
20
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22
Frequency (GHz)
Gain channel 1
Gain channel 2
15
16
17
18
19
20
21
22
23
24
25
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22
Frequency (GHz)
9-19GHz Power splitter Amplifier
CHA2296
Ref. : DSCHA22962044 13-Feb.-02
5/
7
Specifications subject to change without notice
Route Dpartementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
Gain & Return Loss channel 1 versus frequency (dB)
Gain & Return Loss channel 2 versus frequency (dB)
-26
-22
-18
-14
-10
-6
-2
2
6
10
14
18
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22
Frequency (GHz)
S21
S11
S22
-26
-22
-18
-14
-10
-6
-2
2
6
10
14
18
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22
Frequency (GHz)
S21
S11
S22
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