NJG1523KB2
SPDT SWITCH GaAs MMIC
nGENERAL
DESCRIPTION
NJG1523KB2 is a SPDT switch IC featured low insertion
loss, medium handling power and high isolation.
This device is suitable for switching of Tx/Rx signals at
sub-microwave applications.
This switch exhibits wide frequency range from 50MHz to
3.0GHz at low operating voltage of 2.5V, and is operated
up to 25dBm at 3.0V operating voltage.
The ultra small & ultra thin FLP6 package is applied.
nFEATURES
lSingle
low voltage control
lLow
insertion loss
lHigh
isolation
lHandling
power
lLow
current consumption
lUltra
small & ultra thin package
nPIN
CONFIGURATION
Orientation Mark
KB2 Type
Top view
1
nPACKAGE
OUTLINE
NJG1523KB2
+2.5~+6.5V
0.4dB typ. @f=1GHz, P
in
=23dBm
0.5dB typ. @f=2GHz, P
in
=23dBm
29dB typ. @f=2GHz, P
in
=23dBm
25dBm max. @f=2GHz, V
CTL
=3.0V
8uA
typ. @f=0.05~2.5GHz, P
in
=23dBm
FLP6-B2 (Mount Size: 2.1x2.0x0.75mm)
Pin connection
6
5
2
3
4
1.P1
2.GND
3.P2
4.V
CTL2
5.PC
6.V
CTL1
nTRUTH
TABLE
“H”=V
CTL (H)
, “L”=V
CTL (L)
V
CTL1
V
CTL2
PC – P1
PC – P2
H
L
ON
OFF
L
H
OFF
ON
L
L
Insertion loss=17dB
P1 return Loss=2dB
Insertion loss=17dB
P2 return Loss=2dB
H
H
Insertion loss=18dB
P1 return Loss=2dB
Insertion loss=18dB
P2 return Loss=2dB
Note: The values of insertion losses and return losses are the typical values at 2GHz.
-1-
NJG1523KB2
nABSOLUTE
MAXIMUM RATINGS
(T
a
=25°C)
PARAMETER
Input Power
Control Voltage
Power Dissipation
Operating Temp.
Storage Temp.
SYMBOL
P
in
V
CTL
P
D
T
opr
T
stg
CONDITIONS
V
CTL (L)
=0V, V
CTL (H)
=2.7V
V
CTL (H)
-V
CTL (L)
RATINGS
32
7.5
450
-30~+85
-55~+125
UNITS
dBm
V
mW
°C
°C
nELECTRICAL
CHARACTERISTICS
(V
CTL (L)
=0V, V
CTL (H)
=2.7V, Z
S
=Z
l
=50Ω, C6=10pF, T
a
=25°C)
PARAMETERS
Operating voltage (LOW)
Operating voltage (HIGH)
Control current
Insertion loss 1
Insertion loss 2
Isolation 1
(PC-P1, PC-P2, P1-P2)
SYMBOL
V
CTL (L)
V
CTL (H)
I
CTL
LOSS1
LOSS2
ISL1
ISL2
Pin1
Pin2
Pin3
P
-1dB
VSWR
T
SW
CONDITIONS
MIN
-0.2
2.5
TYP
0
2.7
8
0.4
0.5
29
29
-
-
-
30.5
1.4
20
MAX
0.2
6.5
14
0.7
0.8
-
-
24.0
25.0
34.5
-
1.6
-
UNITS
V
V
uA
dB
dB
dB
dB
dBm
dBm
dBm
dBm
f=2.0GHz, P
in
=23dBm
f=1GHz, P
in
=23dBm
f=2GHz, P
in
=23dBm
f=1GHz, P
in
=23dBm
f=2GHz, P
in
=23dBm
V
CTL (H)
=2.7V, f=2GHz
V
CTL (H)
=3.0V, f=2GHz
V
CTL (H)
=6.5V, f=2GHz
f=2.0GHz
f=0.05~2.2GHz, ON State
f
in
=0.05~2.5GHz
-
-
-
27
26
-
-
-
28
-
-
Isolation 2
(PC-P1, PC-P2, P1-P2)
Maximum input power 1*
Maximum input power 2*
Maximum input power 3*
Pin at 1dB
compression point
VSWR
(PC, P1, P2)
Switching time
ns
* Maximum input power: This value is defined as maximum input power of linear operating region
or damage free operating region
-2-
NJG1523KB2
nTERMINAL
INFORMATION
No.
1
SYMBOL
P1
DESCRIPTION
RF port. This port is connected with PC port by controlling 6
th
pin (V
CTL(H)
)
th
to 2.5~6.5V and 4 pin(V
CTL(L)
) to -0.2~+0.2V. An external capacitor is
required to block the DC bias voltage of internal circuit. (50~100MHz:
0.01uF, 0.1~0.5GHz: 1000pF, 0.5~2.5GHz: 56pF)
Ground terminal. Please connect this terminal with ground plane as close
as possible for excellent RF performance.
RF port. This port is connected with PC port by controlling 4
th
pin (V
CTL (H)
)
to 2.5~6.5V and 6
th
pin(V
CTL(L)
) to -0.2~+0.2V. An external capacitor is
required to block the DC bias voltage of internal circuit. (50~100MHz:
0.01uF, 0.1~0.5GHz: 1000pF, 0.5~2.5GHz: 56pF)
Control port 2. The voltage of this port controls PC to P2 state. The ‘ON’
and ‘OFF’ state is toggled by controlling voltage of this terminal such as
th
high-state (2.5~6.5V) or low-state (-0.2~+0.2V). The voltage of 6 pin
have to be set to opposite state. The bypass capacitor has to be chosen
to reduce switching time delay from 10pF~1000pF range.
Common RF port. In order to block the DC bias voltage of internal circuit,
an external capacitor is required. (50~100MHz:0.01uF, 0.1~0.5GHz:
1000pF, 0.5~2.5GHz: 56pF)
Control port 1. The voltage of this port controls PC to P2 state. The ‘ON’
and ‘OFF’ state is toggled by controlling voltage of this terminal such as
high-state (2.5~6.5V) or low-state (-0.2~+0.2V). The voltage of 4
th
pin
have to be set to opposite state. The bypass capacitor has to be chosen
to reduce switching time delay from 10pF~1000pF range.
2
GND
3
P2
4
V
CTL2
5
PC
6
V
CTL1
-3-
NJG1523KB2
nELECTRICAL
CHARACTERISTICS
(f=0.1~3.0GHz, with Application circuit, Losses of external circuit are excluded)
PC-P1 Insertion Loss vs. Frequency
0
(V
CTL1
=2.7V,V
CTL2
=0V,Pin=0dBm)
0
PC-P2 Insertion Loss vs. Frequency
(V
CTL1
=0V,V
CTL2
=2.7V,Pin=0dBm)
-0.4
Insertion Loss (dB)
Insertion Loss (dB)
-0.4
-0.8
-0.8
-1.2
-1.2
-1.6
-1.6
-2
0
0.5
1
1.5
2
2.5
3
Frequency (GHz)
-2
0
0.5
1
1.5
2
2.5
3
Frequency (GHz)
PC-P1 Isolation vs. Frequency
0
(V
CTL1
=0V,V
CTL2
=2.7V,Pin=0dBm)
0
PC-P2 Isolation vs. Frequency
(V
CTL1
=2.7V,V
CTL2
=0V,Pin=0dBm)
-10
-10
Isolation (dB)
Isolation (dB)
-20
-20
-30
-30
-40
-40
-50
0
0.5
1
1.5
2
2.5
3
Frequency (GHz)
-50
0
0.5
1
1.5
2
2.5
3
Frequency (GHz)
PC-P1 VSWR vs. Frequency
(V
3
CTL1
P1-PC VSWR vs. Frequency
3
(V
CTL1
=2.7V,V
CTL2
=0V,P1 port)
=2.7V,V
CTL2
=0V,PC port)
2.6
2.6
2.2
VSWR
VSWR
1.8
2.2
1.8
1.4
1.4
1
0
0.5
1
1.5
2
2.5
3
Frequency (GHz)
1
0
0.5
1
1.5
2
2.5
3
Frequency (GHz)
-4-
NJG1523KB2
nELECTRICAL
CHARACTERISTICS
(with application circuit, without DC Blocking Capacitor, Losses of external circuit are excluded)
P2-PC VSWR vs. Frequency
3
(V
CTL1
=0V,V
CTL2
Input Power vs. Output Power, I
CTL
(V
CTL (L)=
0V, V
CTL (H)=
2.7V)
35
16
P-1dB=30dBm
=2.7V,P2 port)
2.6
30
Output Power (dBm)
14
Pout
P-1dB
2.2
VSWR
1.8
20
10
1.4
15
ICTL
8
1
0
0.5
1
1.5
2
2.5
3
Frequency (GHz)
10
10
15
20
25
30
35
Input Power (dBm)
6
Switching Speed
(V
CTL (L)=
0V, V
CTL (H)=
2.7V)
625mV
Insertion Loss vs. Ambient Temperature
1
VCTL
(PC-P1 port,fin=1GHz,VCTL(L)=0V)
VCTL(H)=2.5V
VCTL(H)=2.7V
VCTL(H)=3.0V
VCTL(H)=3.5V
VCTL(H)=5.0V
VCTL(H)=6.5V
23.8ns
RF
0.8
Insertion Loss (dB)
100mV
/div
0.6
0.4
Trig’d
0.2
0
-50
-375mV
-13.8nF
10ns/div
86.2nF
0
50
o
Ambient Temperature ( C)
100
Isolation vs. Ambient Temperature
35
ICTL vs. Ambient Temperature
30
(PC-P1 port,fin=1GHz,VCTL(L)=0V)
(PC-P1 port,fin=1GHz,VCTL(L)=0V)
VCTL(H)=2.5V
VCTL(H)=2.7V
VCTL(H)=3.0V
VCTL(H)=3.5V
VCTL(H)=5.0V
VCTL(H)=6.5V
25
Control Current (uA)
Isolation (dB)
30
20
15
25
VCTL(H)=2.5V
VCTL(H)=2.7V
VCTL(H)=3.0V
VCTL(H)=3.5V
VCTL(H)=5.0V
VCTL(H)=6.5V
10
5
20
-50
0
50
o
Ambient Temperature ( C)
100
0
-50
0
50
o
Ambient Temperature ( C)
100
-5-
ICTL (uA)
25
12
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