NJG1523KB2
- 1 -
SPDT SWITCH GaAs MMIC
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GENERAL DESCRIPTION
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PACKAGE OUTLINE
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.
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FEATURES
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Single low voltage control
+2.5~+6.5V
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Low insertion loss
0.4dB
typ. @f=1GHz, P
in
=23dBm
0.5dB
typ. @f=2GHz, P
in
=23dBm
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High isolation
29dB
typ. @f=2GHz, P
in
=23dBm
l
Handling power
25dBm max. @f=2GHz, V
CTL
=3.0V
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Low current consumption
8uA
typ. @f=0.05~2.5GHz, P
in
=23dBm
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Ultra small & ultra thin package
FLP6-B2 (Mount Size: 2.1x2.0x0.75mm)
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PIN CONFIGURATION
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TRUTH TABLE
Note: The values of insertion losses and return losses are the typical values at 2GHz.
V
CTL1
H
L
L
H
V
CTL2
L
H
L
H
PC P1
ON
OFF
Insertion loss=17dB
P1 return Loss=2dB
Insertion loss=18dB
P1 return Loss=2dB
PC P2
OFF
ON
Insertion loss=17dB
P2 return Loss=2dB
Insertion loss=18dB
P2 return Loss=2dB
NJG1523KB2
"H"=V
CTL (H)
, "L"=V
CTL (L)
Pin connection
1.P1
2.GND
3.P2
4.V
CTL2
5.PC
6.V
CTL1
KB2 Type
Top view
Orientation Mark
3
2
1
4
5
6
NJG1523KB2
- 2 -
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ABSOLUTE MAXIMUM RATINGS
(T
a
=25C)
PARAMETER
SYMBOL
CONDITIONS
RATINGS
UNITS
Input Power
P
in
V
CTL (L)
=0V, V
CTL (H)
=2.7V
32
dBm
Control Voltage
V
CTL
V
CTL (H)
-V
CTL (L)
7.5
V
Power Dissipation
P
D
450
mW
Operating Temp.
T
opr
-30~+85
C
Storage Temp.
T
stg
-55~+125
C
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ELECTRICAL CHARACTERISTICS
(V
CTL (L)
=0V, V
CTL (H)
=2.7V, Z
S
=Z
l
=50
, C6=10pF, T
a
=25C)
PARAMETERS
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating voltage (LOW)
V
CTL (L)
-0.2
0
0.2
V
Operating voltage (HIGH)
V
CTL (H)
2.5
2.7
6.5
V
Control current
I
CTL
f=2.0GHz, P
in
=23dBm
-
8
14
uA
Insertion loss 1
LOSS1
f=1GHz, P
in
=23dBm
-
0.4
0.7
dB
Insertion loss 2
LOSS2
f=2GHz, P
in
=23dBm
-
0.5
0.8
dB
Isolation 1
(PC-P1, PC-P2, P1-P2)
ISL1
f=1GHz, P
in
=23dBm
27
29
-
dB
Isolation 2
(PC-P1, PC-P2, P1-P2)
ISL2
f=2GHz, P
in
=23dBm
26
29
-
dB
Maximum input power 1*
Pin1
V
CTL (H)
=2.7V, f=2GHz
-
-
24.0
dBm
Maximum input power 2*
Pin2
V
CTL (H)
=3.0V, f=2GHz
-
-
25.0
dBm
Maximum input power 3*
Pin3
V
CTL (H)
=6.5V, f=2GHz
-
-
34.5
dBm
Pin at 1dB
compression point
P
-1dB
f=2.0GHz
28
30.5
-
dBm
VSWR
(PC, P1, P2)
VSWR
f=0.05~2.2GHz, ON State
-
1.4
1.6
Switching time
T
SW
f
in
=0.05~2.5GHz
-
20
-
ns
* Maximum input power: This value is defined as maximum input power of linear operating region
or damage free operating region
NJG1523KB2
- 3 -
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TERMINAL INFORMATION
No.
SYMBOL
DESCRIPTION
1
P1
RF port. This port is connected with PC port by controlling 6
th
pin (V
CTL(H)
)
to 2.5~6.5V and 4
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)
2
GND
Ground terminal. Please connect this terminal with ground plane as close
as possible for excellent RF performance.
3
P2
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)
4
V
CTL2
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
high-state (2.5~6.5V) or low-state (-0.2~+0.2V). The voltage of 6
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.
5
PC
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)
6
V
CTL1
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.
NJG1523KB2
- 4 -
-2
-1.6
-1.2
-0.8
-0.4
0
0
0.5
1
1.5
2
2.5
3
Insertion Loss (dB)
Frequency (GHz)
PC-P1 Insertion Loss vs. Frequency
(V
CTL1
=2.7V,V
CTL2
=0V,Pin=0dBm)
-2
-1.6
-1.2
-0.8
-0.4
0
0
0.5
1
1.5
2
2.5
3
Insertion Loss (dB)
Frequency (GHz)
PC-P2 Insertion Loss vs. Frequency
(V
CTL1
=0V,V
CTL2
=2.7V,Pin=0dBm)
-50
-40
-30
-20
-10
0
0
0.5
1
1.5
2
2.5
3
Isolation (dB)
Frequency (GHz)
PC-P1 Isolation vs. Frequency
(V
CTL1
=0V,V
CTL2
=2.7V,Pin=0dBm)
-50
-40
-30
-20
-10
0
0
0.5
1
1.5
2
2.5
3
Isolation (dB)
Frequency (GHz)
PC-P2 Isolation vs. Frequency
(V
CTL1
=2.7V,V
CTL2
=0V,Pin=0dBm)
1
1.4
1.8
2.2
2.6
3
0
0.5
1
1.5
2
2.5
3
VSWR
Frequency (GHz)
PC-P1 VSWR vs. Frequency
(V
CTL1
=2.7V,V
CTL2
=0V,PC port)
1
1.4
1.8
2.2
2.6
3
0
0.5
1
1.5
2
2.5
3
VSWR
Frequency (GHz)
P1-PC VSWR vs. Frequency
(V
CTL1
=2.7V,V
CTL2
=0V,P1 port)
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ELECTRICAL CHARACTERISTICS
(f=0.1~3.0GHz, with Application circuit, Losses of external circuit are excluded)
NJG1523KB2
- 5 -
1
1.4
1.8
2.2
2.6
3
0
0.5
1
1.5
2
2.5
3
VSWR
Frequency (GHz)
P2-PC VSWR vs. Frequency
(V
CTL1
=0V,V
CTL2
=2.7V,P2 port)
(V
CTL (L)=
0V, V
CTL (H)=
2.7V)
Input Power vs. Output Power, I
CTL
10
15
20
25
30
35
6
8
10
12
14
16
10
15
20
25
30
35
Pout
P-1dB
ICTL
Output Power (dBm)
ICTL (uA)
Input Power (dBm)
P-1dB=30dBm
0
0.2
0.4
0.6
0.8
1
-50
0
50
100
VCTL(H)=2.5V
VCTL(H)=2.7V
VCTL(H)=3.0V
VCTL(H)=3.5V
VCTL(H)=5.0V
VCTL(H)=6.5V
Insertion Loss (dB)
Ambient Temperature (
o
C)
Insertion Loss vs. Ambient Temperature
(PC-P1 port,fin=1GHz,VCTL(L)=0V)
20
25
30
35
-50
0
50
100
VCTL(H)=2.5V
VCTL(H)=2.7V
VCTL(H)=3.0V
VCTL(H)=3.5V
VCTL(H)=5.0V
VCTL(H)=6.5V
Isolation (dB)
Ambient Temperature (
o
C)
Isolation vs. Ambient Temperature
(PC-P1 port,fin=1GHz,VCTL(L)=0V)
0
5
10
15
20
25
30
-50
0
50
100
VCTL(H)=2.5V
VCTL(H)=2.7V
VCTL(H)=3.0V
VCTL(H)=3.5V
VCTL(H)=5.0V
VCTL(H)=6.5V
Control Current (uA)
Ambient Temperature (
o
C)
ICTL vs. Ambient Temperature
(PC-P1 port,fin=1GHz,VCTL(L)=0V)
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ELECTRICAL CHARACTERISTICS
(with application circuit, without DC Blocking Capacitor, Losses of external circuit are excluded)
(V
CTL (L)=
0V, V
CTL (H)=
2.7V)
Switching Speed
RF
23.8ns
VCTL
Trig'd
625mV
100mV
/div
-375mV
-13.8nF
86.2nF
10ns/div
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