鈥?/div>
Very Low Distortion (IP3 = > 60 dBm)
Voltage Ratings to 1000 V
PIN DIODE
SWITCH
Description
TYPICAL CAPACITANCE vs REVERSE VOLTAGE
UM2300 Series PIN diodes are designed for transmit /
receive switch and attenuator application in LF band
( 100 KHz ) and above. As series configured switches,
these long lifetime (80
碌S
typ) diodes can control up to
2.5 KW CW in a 50 ohm system. In MF band, insertion
loss is less than 0.2 dB and isolation is greater than
35 dB (鈥?鈥?/div>
off state).
The UM2300 series offers the lowest distortion perform-
ance in both transmit & receive modes. Less than 10
mA forward bias is required to obtain an IP3 of 60 dBm
at 150 KHz with 1 watt per tone. The forward biased
resistance/reactance vs. frequency characteristics are
flat down to 10 KHz. Capacitance vs. reverse bias volt-
age characteristic is flat down to 1 MHz.
In attenuator configurations, the UM2300 produces
extremely low distortion at low values of attenuator
control current, & very low insertion loss ( 0.2 dB) in
the 鈥? dB 鈥檃ttenuator state.
130
120
110
100
90
200 KHz
100 KHz
Ct (pF)
80
70
60
50
40
30
20
10
0
0
4 MHz
1 MHz
400 KHz
2 MHz
20
40
60
80
100
120
140
160
180
200
Vr (VOLTS)
Voltage Ratings (25擄
C)
Reverse Voltage ( V
R
)
@ I
R
= 10
碌A(chǔ)
100
200
400
600
800
1000
Max.
0.4
20
10
Units
鈩?/div>
pF
碌A(chǔ)
碌s
dBm
DEVICE
Electrical Specifications (25擄
C)
Test
Diode Resistance R
S
Capacitance C
T
Reverse Current I
R
Carrier Lifetime
蟿
IP3
Min.
Typ.
0.3
15
80
60
VOLTS............ UM2301
VOLTS............ UM2302
VOLTS............ UM2304
VOLTS............ UM2306
VOLTS............ UM2308
VOLTS............ UM2310
Conditions
F
1
= 1 MHz, 100 mA
F
2
= 1 MHz, 100 V
@ Rated Voltage
I
f
= 10 mA / 100 V
2 WATT total, I
f
= 25 mA
F
1
= 0.999 MHz, F
2
= 1.001 MHz
1.0 WATT/ tone
25擄 Stud Temperature
C
60
50
Thermal Resistance
1.0
擄
/W
C
MSCOXXXA 12-14-98
DSW UM2300 <->(34989)
1
2
3
4
5
