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UM9402SME3 [MICROSEMI]

Pin Diode, Silicon, SURFACE MOUNT PACKAGE-2;
UM9402SME3
型号： UM9402SME3
厂家： Microsemi    Microsemi
描述：

Pin Diode, Silicon, SURFACE MOUNT PACKAGE-2

开关 二极管
文件： 总11页 (文件大小：424K)
中文：  中文翻译
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UM9401 / UM9402 / UM9415  
COMMERCIAL TWO-WAY RADIO  
ANTENNA SWITCH DIODES  
KEY FEATURES  
DESCRIPTION  
ƒ
High transmitter power  
Microsemi offers a series of PIN diodes  
The UM9415 will handle over 1000 W. The  
extensive characterization of these PIN diodes in  
antenna switch applications has resulted in  
UM9401/UM9402 => 100 W  
specifically designed and characterized for  
solid state antenna switches in commercial  
UM9415  
=> 1000 W  
two-way radios. Antenna switches using the guaranteed low distortion specifications under  
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Low harmonic distortion  
Low third order distortion  
High carrier lifetime  
UM9401 and UM9415 series PIN diodes  
provide high isolation, low loss and low  
distortion characteristics formerly possible  
only with electromechanical relay type  
switches.  
transmit and receive conditions. These diodes  
also feature low forward bias resistance and high  
zero bias impedance which are required for low  
loss, high isolation and wide bandwidth antenna  
switch performance.  
Non cavity design  
The UM9401 and the UM9402 diodes can  
handle 100 W of transmitter power, while  
Thermally matched configuration  
Low capacitance at 0 V bias  
Low conductance at 0 V bias  
IMPORTANT: For themost current data, consultMICROSEMI’s website: http://www.microsemi.com  
ABSOLUTE MAXIMUM RATINGS AT 25º C  
(UNLESS OTHERWISE SPECIFIED)  
Compatible with automatic insertion  
equipment  
Package  
Condition  
UM9401  
UM9402  
UM9415  
50 V  
Reverse  
Voltage  
Average  
Power  
@ Ir = 10 uA  
50 V  
50 V  
½ in. total length to 25 OC  
Contact  
5.5 W  
10 W  
Dissipation 25 oC (Package Flange  
APPLICATIONS/BENEFITS  
10 W  
(PA)  
Temperature  
Free Air  
ƒ Isolated stud package available  
1.5 W  
2.5 W  
ƒ Surface mount package available  
ƒ
Copyright 2005  
Microsemi  
Page 1  
Rev. 0, 2005-09-15  
UM9401 / UM9402 / UM9415  
COMMERCIAL TWO-WAY RADIO  
ANTENNA SWITCH DIODES  
UM9401/UM9402  
UM9415  
Typ Max  
Units  
Parameter  
Symbol Conditions  
Min  
Typ  
Max  
Min  
Reverse Current  
Series Resistance  
Capacitance  
Parallel Resistance  
10  
IR  
RS  
CT  
RP  
Vr = 50 V  
If = 50 mA, F= 100 MHz  
10  
uA  
Ohm  
pF  
Ohms  
1.0  
1.5  
5k  
1.0  
4
1k  
VR = 0 V, F = 100 MHZ  
VR = 0 V, F = 100 MHz  
Carrier Lifetime  
IF = 10 mA  
If = 50 mA  
2.0  
us  
τ
Vf  
R2A/A  
R3A/A  
R2AB/A  
5.0  
1.0  
80  
Forward Voltage  
Transmit Harmonic Distortion  
1.0  
80  
V
-dB  
Pin = 50 W  
f = 50 MHz, If = 50 mA  
Pin = 10 W, 0 V Bias  
fA = 50 MHz, fB = 51  
MHz  
Receive Third Order  
Distortion  
60  
-dB  
60  
Rs versus If  
TYPICAL  
3
10  
10  
10  
10  
f = 100 MHz  
2
1
0
UM9401/UM9402  
UM9415  
-1  
10  
-5  
10  
-4  
10  
-3  
-2  
-1  
0
10  
10  
10  
10  
If (A)  
Copyright 2005  
Microsemi  
Page 2  
Rev. 0, 2005-09-15  
UM9401 / UM9402 / UM9415  
COMMERCIAL TWO-WAY RADIO  
ANTENNA SWITCH DIODES  
Ct versus f  
TYPICAL  
10  
8
7
6
5
Vr = 0 V  
4
3
UM9415  
Vr = 50 V  
2
1
Vr = 0 V  
UM9401/UM9402  
Vr = 50 V  
10  
100  
1000  
f (MHz)  
Vf versus If  
TYPICAL  
0
10  
-1  
-2  
-3  
-4  
-5  
10  
10  
10  
10  
10  
UM9415  
UM9401/UM9402  
0.0  
0.2  
0.4  
0.6  
0.8  
1.0  
1.2  
Vf (V)  
Copyright 2005  
Microsemi  
Page 3  
Rev. 0, 2005-09-15  
UM9401 / UM9402 / UM9415  
COMMERCIAL TWO-WAY RADIO  
ANTENNA SWITCH DIODES  
Rp versus f  
TYPICAL  
3
2
1
10  
10  
10  
10  
UM9401/UM9402 Vr = 50 V  
UM9415 Vr = 50 V  
UM9401/UM9402 Vr = 0 V  
UM9415 Vr = 0 V  
0
1
2
3
4
10  
10  
10  
10  
f (MHz)  
Copyright 2005  
Microsemi  
Page 4  
Rev. 0, 2005-09-15  
UM9401 / UM9402 / UM9415  
COMMERCIAL TWO-WAY RADIO  
ANTENNA SWITCH DIODES  
MAXIMUM TRANSMITTER POWER  
UM9415  
Zo = 50 Ohms, L = 1/2", SWR = INFINITE  
3000  
1000  
If = 1 A  
If = 500 mA  
If = 200 mA  
100  
If = 100 mA  
If = 50 mA  
10  
25  
50  
75  
100  
125  
150  
175  
200  
Lead Temperature (oC)  
Copyright 2005  
Microsemi  
Page 5  
Rev. 0, 2005-09-15  
UM9401 / UM9402 / UM9415  
COMMERCIAL TWO-WAY RADIO  
ANTENNA SWITCH DIODES  
MAXIMUM TRANSMITTER POWER  
UM9401/UM9402  
Zo = 50 Ohms, L = 1/2", SWR = INFINITE  
1000  
100  
10  
If = 200 mA  
If = 100 mA  
If = 50 mA  
If = 20 mA  
If = 10 mA  
1
25  
50  
75  
100  
125  
150  
175  
200  
Lead Temperature ( oC)  
Maximum Transmitter Power  
Copyright 2005  
Microsemi  
Page 6  
Rev. 0, 2005-09-15  
UM9401 / UM9402 / UM9415  
COMMERCIAL TWO-WAY RADIO  
ANTENNA SWITCH DIODES  
The maximum CW transmitter power, PT(max), a PIN  
diode antenna switch can handle depends on the  
diode resistance, RS, power dissipation, PD, antennae  
SWR, σ, and the nominal impedance, ZO. The  
expression is as follows:  
is less than 0.3 dB. This performance is achievable  
across a ±20 % bandwidth at center frequencies  
ranging from 10 to 500 MHz.  
Characteristic curves are shown in the data section  
which gives both the maximum and typical diode  
resistance, RS as a function of forward current. The  
maximum power dissipation rating of the PIN diode  
depends both on the length of the diode leads and the  
temperature of the contacts to which the leads are  
connected. A graph defining the maximum power  
dissipation at various combinations of overall lead  
length (L) and lead temperature (TL) is given in the  
data section. From these curves and the above  
equation, the power handling capability of the PIN  
diode may be computed for a specific application.  
Curves are also presented which show the  
DC SUPPLY  
ANTENNA  
/4  
D1  
RECEIVER  
TRANSMITTER  
D2  
DC SUPPLY  
ANTENNA  
L
D1  
D2  
TRANSMITTER  
RECEIVER  
maximum transmitter power that an antenna  
switch using UM9401s and UM9415s can safely  
handle for various forward currents and lead  
temperatures. These curves are based on a typical  
design condition of a ½ in. total overall lead length,  
50 Ω line impedance, and a totally mismatched  
antenna (σ = ∞). For the case of a perfectly matched  
antenna, the maximum transmitter power can be  
increased by a factor of 4.  
L = ZO / 2 πfO (H)  
C = 1/2 πfO ZO (F)  
L
Design Information  
A circuit configuration for a two-way radio antenna  
switch using PIN diodes consists of a diode placed in  
series with the transmitter and a shunt diode placed a  
quarter wavelength from the antenna in the direction  
of the receiver as shown. For low frequency  
C
C
operation, the quarter wave line may be simulated by  
lumped elements. Typical performance of antenna  
switches using PIN diodes forward biased at 100 mA  
is less than 0.2 dB insertion loss and 30 dB isolation  
during transmit; at zero bias the receive insertion loss  
Copyright 2005  
Microsemi  
Page 7  
Rev. 0, 2005-09-15  
UM9401 / UM9402 / UM9415  
COMMERCIAL TWO-WAY RADIO  
ANTENNA SWITCH DIODES  
STYLE “UM9401B”  
STYLE “UM9415B”  
STYLE “UM9401SM”  
STYLE “UM9415SM”  
Copyright 2005  
Rev. 0, 2005-09-15  
Microsemi  
Page 8  
UM9401 / UM9402 / UM9415  
COMMERCIAL TWO-WAY RADIO  
ANTENNA SWITCH DIODES  
UM9401 STYLE “SM” FOOTPRINT  
NOTES:  
1. These dimensions will match the terminals and provide for additional solder fillets at the outboard ends  
at least as wide as the terminals themselves, assuming accuracy of placement within 0.005”  
2. If the mounting method chosen requires use of an adhesive separate from the solder compound, a round  
(or square) spot of cement as shown should be centrally located.  
UM9415 STYLE “SM” FOOTPRINT  
Copyright 2005  
Rev. 0, 2005-09-15  
Microsemi  
Page 9  
UM9401 / UM9402 / UM9415  
COMMERCIAL TWO-WAY RADIO  
ANTENNA SWITCH DIODES  
Copyright 2005  
Microsemi  
Page 10  
Rev. 0, 2005-09-15  
UM9401 / UM9402 / UM9415  
COMMERCIAL TWO-WAY RADIO  
ANTENNA SWITCH DIODES  
NOTES:  
Copyright 2005  
Microsemi  
Page 11  
Rev. 0, 2005-09-15  

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