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VMMK-1218-TR1G

P1-P3P4-P6P7-P9P10-P12
7
VMMK-1218 Typical Scattering Parameters and Noise Parameters, T
A
=25°C, Vds=3V, Ids=20mA
[1]
Freq S11 S21 S12 S22 MSG/MAG
GHz Mag. Ang. dB Mag. Ang. Mag. Ang. Mag. Ang. dB
2 0.90 -78.41 20.88 11.07 129.30 0.05 44.78 0.59 -45.41 29.71
3 0.85 -106.62 19.27 9.19 111.50 0.06 29.68 0.50 -61.56 26.11
4 0.82 -129.23 17.67 7.65 96.89 0.07 17.84 0.43 -74.78 23.29
5 0.80 -146.90 16.21 6.47 84.82 0.07 8.51 0.38 -85.37 21.29
6 0.79 -161.57 14.90 5.56 74.28 0.07 0.60 0.35 -94.96 19.70
7 0.78 -173.94 13.71 4.85 64.67 0.07 -6.02 0.32 -103.77 18.32
8 0.78 175.49 12.63 4.28 55.85 0.07 -12.05 0.31 -112.18 17.17
9 0.78 166.35 11.62 3.81 47.60 0.07 -17.59 0.30 -120.67 16.14
10 0.78 158.10 10.70 3.43 39.76 0.07 -22.09 0.29 -128.21 15.23
11 0.79 150.68 9.87 3.11 32.39 0.07 -26.72 0.29 -135.58 14.44
12 0.79 143.93 9.09 2.85 25.16 0.07 -30.99 0.30 -142.88 13.76
13 0.79 137.47 8.38 2.62 18.21 0.07 -34.81 0.31 -149.97 13.11
14 0.80 131.33 7.71 2.43 11.48 0.06 -38.24 0.31 -156.46 12.54
15 0.80 125.54 7.11 2.27 4.87 0.06 -40.97 0.33 -162.44 12.02
16 0.80 119.64 6.53 2.12 -1.87 0.06 -44.55 0.34 -168.20 11.55
17 0.81 113.80 6.00 2.00 -8.47 0.06 -46.49 0.35 -174.07 11.14
18 0.81 108.24 5.48 1.88 -14.69 0.06 -49.45 0.36 -179.63 10.72
Typical Noise Parameters
Freq Fmin Г opt Г opt Rn/50 Ga
GHz dB Mag. Ang. dB
2 0.16 0.72 30.40 0.10 20.29
3 0.23 0.62 45.50 0.10 18.62
4 0.30 0.53 60.30 0.09 17.08
5 0.37 0.45 74.80 0.08 15.69
6 0.44 0.39 89.10 0.08 14.44
7 0.50 0.34 103.00 0.07 13.34
8 0.57 0.30 116.70 0.07 12.37
9 0.64 0.28 130.10 0.07 11.55
10 0.71 0.27 143.20 0.06 10.87
11 0.77 0.27 156.00 0.06 10.34
12 0.84 0.29 168.60 0.06 9.95
13 0.91 0.31 -179.20 0.06 9.70
14 0.98 0.36 -167.20 0.06 9.59
15 1.05 0.41 -155.50 0.06 9.63
16 1.11 0.48 -144.10 0.07 9.81
17 1.18 0.56 -132.90 0.08 10.13
Note:
1. S-parameters are measured in 50 Ohm test environment.
Figure 14. MSG/MAG and S21 vs. Frequency at 3V 20 mA
0.00
10.00
20.00
30.00
40.00
0510 1520
FREQUENCY GHz
MSG/MAG and S21 (dB)
MSG/MAG
S21
8
Small Signal Model Parameters
Parameter Value Parameter Value Parameter Value Parameter Value
Vd (V) 1.5 Vd (V) 1.5 Vd (V) 1.5 Vd (V) 1.5
Id (mA) 5 Id (mA) 10 Id (mA) 15 Id (mA) 20
Gm 0.1162 Gm 0.2019 Gm 0.2374 Gm 0.3249
tau 0.00188 tau 0.002388 tau 0.002702 tau 0.00271
Cgs 0.5131 Cgs 0.6732 Cgs 0.8077 Cgs 0.929
Rgs 0.2126 Rgs 0.02638 Rgs 0.02069 Rgs 0.0304
Cgd 0.06932 Cgd 0.06226 Cgd 0.0777 Cgd 0.07133
Cds 0.1587 Cds 0.1574 Cds 0.1606 Cds 0.1597
Rds 334.70 Rds 187.10 Rds 154.10 Rds 123.80
Parameter Value Parameter Value Parameter Value Parameter Value
Vd (V) 2 Vd (V) 2 Vd (V) 2 Vd (V) 2
Id (mA) 5 Id (mA) 10 Id (mA) 15 Id (mA) 20
Gm 0.1159 Gm 0.1992 Gm 0.1992 Gm 0.3199
tau 0.002146 tau 0.002394 tau 0.002394 tau 0.00257
Cgs 0.5661 Cgs 0.7445 Cgs 0.7445 Cgs 1.04381
Rgs 0.2293 Rgs 0.01936 Rgs 0.01936 Rgs 0.01756
Cgd 0.07976 Cgd 0.0726 Cgd 0.0726 Cgd 0.0606
Cds 0.1631 Cds 0.16078 Cds 0.16078 Cds 0.1607
Rds 357.50 Rds 222.00 Rds 222.00 Rds 141.70
Parameter Value Parameter Value Parameter Value Parameter Value
Vd (V) 3 Vd (V) 3 Vd (V) 3 Vd (V) 3
Id (mA) 5 Id (mA) 10 Id (mA) 15 Id (mA) 20
Gm 0.1112 Gm 0.193 Gm 0.258 Gm 0.3119
tau 0.00249 tau 0.0025 tau 0.00252 tau 0.002487
Cgs 0.6365 Cgs 0.8786 Cgs 1.08192 Cgs 1.26
Rgs 0.007447 Rgs 0.1353 Rgs 0.01 Rgs 0.0271
Cgd 0.06521 Cgd 0.0582 Cgd 0.053 Cgd 0.04772
Cds 0.1603 Cds 0.1595 Cds 0.1601 Cds 0.1595
Rds 438.90 Rds 260.60 Rds 209.10 Rds 172.90
Parameter Value Parameter Value Parameter Value Parameter Value
Vd (V) 4 Vd (V) 4 Vd (V) 4 Vd (V) 4
Id (mA) 5 Id (mA) 10 Id (mA) 15 Id (mA) 20
Gm 0.1088 Gm 0.1909 Gm 0.2509 Gm 0.3053
tau 0.00264 tau 0.002635 tau 0.002613 tau 0.00261
Cgs 0.6765 Cgs 0.9774 Cgs 1.203 Cgs 1.412
Rgs 0.00818 Rgs 0.1478 Rgs 0.01263 Rgs 0.02727
Cgd 0.05762 Cgd 0.05065 Cgd 0.04603 Cgd 0.04153
Cds 0.1565 Cds 0.1573 Cds 0.1574 Cds 0.1579
Rds 564.30 Rds 312.10 Rds 242.20 Rds 200.30
9
CAP
ID=C1
C=Cgs pF
CAP
ID=C2
C=Cds pF
RES
ID=R1
R=Rgs Ohm
RES
ID=R2
R=Rd Ohm
RES
ID=R3
R=Rg Ohm
RES
ID=R4
R=Rs Ohm
IND
ID=L1
L=Lg nH
IND
ID=L2
L=Ld nH
CAP
ID=C3
C=Cpgs pF
1
2
3
4
VCCS
ID=U1
M=Gm S
A=0 Deg
R1=1e100 Ohm
R2=Rds Ohm
F=0 GHz
T=tau ns
CAP
ID=C4
C=Cgd pF
CAP
ID=C5
C=Cpds pF
IND
ID=L3
L=Ls nH
CAP
ID=C6
C=Cpgd pF
PORT
P=1
Z=50 Ohm
PORT
P=2
Z=50 Ohm
PORT
P=3
Z=50 Ohm
VMMK-1218 ADS Model
Rg Value
Rg 4.729
Rd 1.29495
RsG 2.283
C pgs 0.0475
C pds 0.0318
C pgd 0.00417
Ls 0.000559
Lg 0.32446
Ld 0.2602
S Parameter Measurements
The S-parameters are measured on a .016 inch thick RO4003 printed circuit test board, using G-S-G (ground signal
ground) probes. Coplanar waveguide is used to provide a smooth transition from the probes to the device under test.
The presence of the ground plane on top of the test board results in excellent grounding at the device under test. A
combination of SOLT (Short - Open - Load - Thru) and TRL (Thru - Reect - Line) calibration techniques are used to correct
for the eects of the test board, resulting in accurate device S-parameters. The reference plane for the S Parameters is
at the edge of the package.
P1-P3P4-P6P7-P9P10-P12

VMMK-1218-TR1G

Mfr. #:
Buy VMMK-1218-TR1G
Manufacturer:
Broadcom / Avago
Description:
RF JFET Transistors LNA FET in Microcap DC-18GHz
Lifecycle:
New from this manufacturer.
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