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PDF MA4ST250 Data sheet ( Hoja de datos )

Número de pieza MA4ST250
Descripción Low-Voltage / High Q Si Hyperabrupt Varactors
Fabricantes Tyco 
Logotipo Tyco Logotipo



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Low-Voltage / High Q Si Hyperabrupt Varactors
MA4ST200 Series
MA4ST200 Series
Low-Voltage / High Q
Si Hyperabrupt Varactors
Features
Surface Mount Packages
(SOT-23, SOT-323, SOD-323)
High Q at Low Voltages
High Capacitance Ratio at Low Voltages
SPC Process for Superior C-V Repeatability
Available as Single and Common Cathode Pairs
Tape and Reel Packaging
Designed for Commercial Wireless Applications
Description
M/A-COM’s MA4ST200 series is a ion-implanted, hyperabrupt
junction, silicon tuning varactors in SOT-23, SOT-323, and SOD-
323 surface mount packages. This series of varactors is designed
for high Q and low voltage operation. Each varactor type has a Q
greater than 400 at -2 V.
Applications
The MA4ST200 series tuning varactors are useful for wide band
tuning and low phase noise applications where the supply voltage
is limited to 5 volts or less. These varactors have been specifi-
cally designed for use in the wireless communications up to the
2.4 GHz band. Applications include VCOs and voltage tuned
filters.
TYPICAL DEVICE SELECTION by FREQUENCY
230 240 250
107
-&7
0.25 0.5
$FWLYH3DJHUV
&7
605
3'&
*60
,6
107
7$&6
$036
3&6
*36
:/$1
'&6
3+3
'(&7
0.75 1.0
FREQUENCY (GHz)
2.0
3.0
Configurations
TOP VIEW (SOT-23, SOT-323)
Single
Double
TOP VIEW (SOD-323)
Spice Model
Cp
Package
Parasitics
Intrinsic Diode
Model:
N = 1.1
Rs
CJ0=(see table below)
VJ = (see table below)
FC = 0.5
BV = 12.0 V
M = (see table below)
Cj
Parasitics:
Ls
Cp= 0.15 pF
Ls= 0.10 nH
Part No.
MA4ST230
MA4ST250
MA4ST250
CJO (pF)
12.0
8.16
6.19
VJ (V)
4.085
4.930
4.774
M
2.228
2.520
2.458
M/A-COM Division of AMP Incorporated Q North America: Tel. (800) 366-2266, Fax (800) 618-8883 Q Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087
Q Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.

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