TRANSCOM TC3918

TC3918
REV1_20070503
Packaged Single-Bias Low Noise PHEMT GaAs FETs
FEATURES
PHOTO ENLARGEMENT
! 0.7 dB Typical Noise Figure at 12 GHz
! High Associated Gain: Ga = 13 dB Typical at 12 GHz
! 18dBm Typical Power at 12 GHz
! 13 dB Typical Linear Power Gain at 12 GHz
! Lg = 0.25 µm, Wg = 160 µm
! 100 % DC Tested
! Micro-X Metal Ceramic Package
DESCRIPTION
The TC3918 is a single-bias low noise ceramic micro-x packaged device with TC1101 PHEMT GaAs FETs,
which is designed to provide the single power supply application. The device is suitable for oscillator, low noise
amplifier in a wide range of commercial applications. All devices are 100% DC tested to assure consistent quality.
ELECTRICAL SPECIFICATIONS (TA=25 °C)
Symbol
Conditions
NF
Noise Figure at VDS = 2 V, f
Ga
Associated Gain at VDS = 2 V, f
MIN
= 12GHz
= 12GHz
11
MAX
0.7
1.2
UNIT
dB
13
dB
13
dB
P1dB
Output Power at 1dB Gain Compression Point, f
GL
Linear Power Gain,
IDS
Drain-Source Current at VDS = 4 V
25
mA
Rth
Thermal Resistance
230
°C/W
f
= 12GHz VDS = 4 V
TYP
16.5
= 12GHz VDS = 4 V
11
ABSOLUTE MAXIMUM RATINGS (TA=25 °C) TYPICAL NOISE PARAMETERS (TA=25 °C)
VDS = 4 V
Symbol
VDS
Pin
PT
TCH
TSTG
Parameter
Drain-Source Voltage
RF Input Power, CW
Continuous Dissipation
Channel Temperature
Storage Temperature
Rating
7.0 V
18 dBm
150 mW
175 °C
-65°C to +175°C
HANDLING PRECAUTIONS:
The user must operate in a clean, dry environment.
Electrostatic Discharge (ESD) precautions should be
observed at all stages of storage, handling, assembly,
and testing. The static discharge must be less than
300V.
Frequency
(GHz)
2
4
6
8
10
12
14
16
18
NFopt
(dB)
0.46
0.49
0.52
0.56
0.64
0.73
0.85
1.08
1.33
GA(dB)
17.7
16.1
14.6
13.2
12.0
11.0
10.6
10.5
10.2
Γopt
MAG
0.80
0.69
0.56
0.42
0.31
0.23
0.21
0.26
0.41
ANG
20
42
69
103
146
-161
-97
-19
72
Rn/50
0.67
0.58
0.45
0.32
0.19
0.14
0.13
0.18
0.38
TRANSCOM, INC., 90 Dasoong 7th Road, Tainan Science-Based Industrial Park, Hsin-She Shiang, Tainan County, Taiwan, R.O.C.
Web-Site: www.transcominc.com.tw
Phone: 886-6-5050086
Fax: 886-6-5051602
P1/3
TC3918
REV1_20070503
0.2
75
90
15
165
10.0
3.0
4.0
5.0
2.0
0.8
1.0
0.6
0.4
45
0.
4
0.2
30
15
0
10.0
0
S12
5
13
0
3.
0
4. 0
5.
Swp Max
18 GHz
60
2.
0
1.0
Mag Max
0.1
Swp Max
18GHz
0
12
6
0.
(TA=25 °C) VDS = 4 V
105
0.8
TYPICAL SCATTERING PARAMETERS
0
-180
-10.0
-105
Swp Min
2 GHz
1.0
2.
0
6
0.
0.8
-1
35
Swp Max
18GHz
S22
0
3.
0
4. 0
5.
0.2
15
10.0
3.0
4.0
5.0
2.0
0.8
1.0
0.4
0
0
0.2
10.0
165
0.6
.0
-2
60
75
-0.8
-1.0
90
45
0.
4
-0
.6
-3
.0
-4
.
-5. 0
0
5
13
30
15
0
0
-6
Swp Max
18 GHz
-75
0.025
Per Div
Swp Min
2GHz
-90
105
0
12
Mag Max
10
-3
0
50
-1
5
-4
.4
-0
-15
-165
-1
20
S11
2
-0.
-180
-15
S11
MAG
1.0037
0.9618
0.9101
0.8490
0.7843
0.7184
0.6503
0.5768
0.5321
0.4670
0.4302
0.4003
0.4038
0.4313
0.4645
0.5138
0.5504
S21
ANG
-36.81
-55.65
-71.88
-87.59
-101.26
-116.51
-131.33
-147.39
-164.51
174.87
154.30
128.28
101.23
73.02
49.63
30.09
15.19
MAG
4.9472
4.8706
4.7020
4.4937
4.3157
4.1587
4.0117
3.9100
3.8820
3.8295
3.8617
3.9013
3.9206
3.8471
3.7261
3.4825
3.2919
.0
-2
-1.0
-0
.6
-105
-1
20
Swp Min
2 GHz
-0.8
.4
-0
5
-4
-75
FREQUENCY
(GHz)
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
0
-6
-1
35
S21
-90
2
Per Div
2
-0.
-3
0
Swp Min
2GHz
S12
ANG
151.92
131.81
114.73
98.67
84.48
69.36
55.37
41.80
28.54
14.03
1.13
-15.12
-31.94
-50.20
-68.48
-85.38
-100.35
MAG
0.0297
0.0409
0.0502
0.0574
0.0618
0.0660
0.0665
0.0667
0.0669
0.0690
0.0647
0.0656
0.0631
0.0663
0.0663
0.0699
0.0736
-3
.0
-4
-5..0
0
50
-1
-10.0
-165
S22
ANG
61.58
48.73
40.35
30.54
22.18
12.79
4.84
-3.78
-9.08
-18.73
-23.54
-32.69
-39.91
-53.76
-67.67
-82.26
-100.33
MAG
0.7379
0.7117
0.6877
0.6615
0.6355
0.6046
0.5806
0.5505
0.5182
0.4748
0.4659
0.4455
0.4519
0.4355
0.4571
0.4426
0.4585
ANG
-26.31
-38.42
-47.93
-56.85
-65.26
-74.72
-82.01
-89.25
-95.25
-104.16
-110.86
-123.28
-137.07
-154.84
-172.48
169.29
153.28
TRANSCOM, INC., 90 Dasoong 7th Road, Tainan Science-Based Industrial Park, Hsin-She Shiang, Tainan County, Taiwan, R.O.C.
Web-Site: www.transcominc.com.tw
Phone: 886-6-5050086
Fax: 886-6-5051602
P2/3
TC3918
REV1_20070503
OUTLINE DIMENSIONS (in inch)
Tape & Reel Package Orientation (in mm)
0.5 +0.1/-0.0
2.0 +/- 0.05
A
0.30 +/- 0.05
4.0
1.75
0.5 MIN.
5.5 +/- 0.05
Bo
12.0 +/- 0.3
A1
Ko
Section A-A
8.0
Ao
A
Ao =
A1 =
Bo =
B1 =
Ko =
Standard Reel Size
Standard Reel Quantity
7.0 mm
1.45 mm
7.0 mm
0.9 mm
2.0 mm
7”
1000
TRANSCOM, INC., 90 Dasoong 7th Road, Tainan Science-Based Industrial Park, Hsin-She Shiang, Tainan County, Taiwan, R.O.C.
Web-Site: www.transcominc.com.tw
Phone: 886-6-5050086
Fax: 886-6-5051602
P3/3