NJG1523KB2
- 1 -
SPDT SWITCH GaAs MMIC
nGENERAL DESCRIPTION nPACKAGE 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.
Reversed logic version of this device is NJG1533KB2.
nFEATURES
lSingle low voltage control +2.5~+6.5V
lLow insertion loss 0.4dB typ. @f=1GHz, PIN=23dBm
0.5dB typ. @f=2GHz, PIN=23dBm
lHigh isolation 29dB typ. @f=2GHz, PIN=23dBm
lHandling power 25dBm max. @f=2GHz, VCTL=3.0V
lLow current consumption 8uAtyp. @f=0.05~2.5GHz, PIN=23dBm
lUltra small & ultra thin package FLP6-B2 (Package size: 2.0x2.1x0.75mm)
nPIN CONFIGURATION
nTRUTH TABLE
Note: Reversed logic version of this device is NJG1533KB2.
The values of insertion losses and return losses are the typical values at 2GHz.
VCTL1 HL L H
VCTL2 LHLH
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”=VCTL (H), “L”=VCTL (L)
Pin connection
1.P1
2.GND
3.P2
4.VCTL2
5.PC
6.VCTL1
KB2 Type
Top view
Orientation Mark
3
2
1
4
5
6
NJG1523KB2
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nABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER SYMBOL CONDITIONS RATINGS UNITS
Input Power Pin VCTL (L)=0V, VCTL (H)=2.7V 32 dBm
Control Voltage VCTLVCTL (H)-VCTL (L) 7.5 V
Power Dissipation PD450 mW
Operating Temp. Topr -30~+85 °C
Storage Temp. Tstg -55~+125 °C
nELECTRICAL CHARACTERISTICS (VCTL (L)=0V, VCTL (H)=2.7V, ZS=Zl=50Ω, Ta=25°C)
PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating voltage (LOW) VCTL (L) -0.2 00.2 V
Operating voltage (HIGH) VCTL (H) 2.5 2.7 6.5 V
Control current ICTLf=2.0GHz, PIN=23dBm -8 14 uA
Insertion loss 1 LOSS1 f=1.0GHz, PIN=23dBm -0.40.7dB
Insertion loss 2 LOSS2 f=2.0GHz, PIN=23dBm -0.5 0.8 dB
Isolation 1
(PC-P1, PC-P2, P1-P2) ISL1 f=1.0GHz, PIN=23dBm 27 29 -dB
Isolation 2
(PC-P1, PC-P2, P1-P2) ISL2 f=2.0GHz, PIN=23dBm 26 29 -dB
Maximum input power 1* Pin1VCTL (H)=2.7V, f=2GHz - - 24.0 dBm
Maximum input power 2* Pin2VCTL (H)=3.0V, f=2GHz - - 25.0 dBm
Maximum input power 3* Pin3VCTL (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 TSW fin=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
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nTERMINAL INFORMATION
No. SYMBOL DESCRIPTION
1P1
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)
2GND Ground terminal. Please connect this terminal with ground plane as close
as possible for excellent RF performance.
3P2
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)
4VCTL2
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.
5PC 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)
6VCTL1
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
00.5 11.5 22.5 3
Insertion Loss (dB)
Frequency (GHz)
PC-P1 Insertion Loss vs. Frequency
(VCTL1=2.7V,VCTL2=0V,Pin=0dBm)
-2
-1.6
-1.2
-0.8
-0.4
0
00.5 11.5 22.5 3
Insertion Loss (dB)
Frequency (GHz)
PC-P2 Insertion Loss vs. Frequency
(VCTL1=0V,VCTL2=2.7V,Pin=0dBm)
-50
-40
-30
-20
-10
0
00.5 11.5 22.5 3
Isolation (dB)
Frequency (GHz)
PC-P1 Isolation vs. Frequency
(VCTL1=0V,VCTL2=2.7V,Pin=0dBm)
-50
-40
-30
-20
-10
0
00.5 11.5 22.5 3
Isolation (dB)
Frequency (GHz)
PC-P2 Isolation vs. Frequency
(VCTL1=2.7V,VCTL2=0V,Pin=0dBm)
1
1.4
1.8
2.2
2.6
3
00.5 11.5 22.5 3
VSWR
Frequency (GHz)
PC-P1 VSWR vs. Frequency
(VCTL1=2.7V,VCTL2=0V,PC port)
1
1.4
1.8
2.2
2.6
3
00.5 11.5 22.5 3
VSWR
Frequency (GHz)
P1-PC VSWR vs. Frequency
(VCTL1=2.7V,VCTL2=0V,P1 port)
nELECTRICAL CHARACTERISTICS
(f=0.1~3.0GHz, with Application circuit, Losses of external circuit are excluded)
NJG1523KB2
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1
1.4
1.8
2.2
2.6
3
00.5 11.5 22.5 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 ( oC)
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 ( oC)
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 ( oC)
ICTL vs. Ambient Temperature
(PC-P1 port,fin=1GHz,VCTL(L)=0V)
nELECTRICAL CHARACTERISTICS
(with application circuit, without DC Blocking Capacitor, Losses of external circuit are excluded)
(VCTL (L)=0V, VCTL (H)=2.7V)
Switching Speed
RF
23.8ns
VCTL
Trig’d
625mV
100mV
/div
-375mV
-13.8nF 86.2nF
10ns/div
NJG1523KB2
- 6 -
-2
-1.6
-1.2
-0.8
-0.4
0
50 60 70 80 90 100
Insertion Loss (dB)
Frequency (MHz)
PC-P2 Insertion Loss vs. Frequency
(VCTL1=0V,VCTL2=2.7V,Pin=0dBm)
-2
-1.6
-1.2
-0.8
-0.4
0
50 60 70 80 90 100
Insertion Loss (dB)
Frequency (MHz)
PC-P1 Insertion Loss vs. Frequency
(VCTL1=2.7V,VCTL2=0V,Pin=0dBm)
-50
-40
-30
-20
-10
0
50 60 70 80 90 100
Isolation (dB)
Frequency (MHz)
PC-P1 Isolation vs. Frequency
(VCTL1=0V,VCTL2=2.7V,Pin=0dBm)
-50
-40
-30
-20
-10
0
50 60 70 80 90 100
Isolation (dB)
Frequency (MHz)
PC-P2 Isolation vs. Frequency
(VCTL1=2.7V,VCTL2=0V,Pin=0dBm)
1
1.4
1.8
2.2
2.6
3
50 60 70 80 90 100
VSWR
Frequency (MHz)
PC-P1 VSWR vs. Frequency
(VCTL1=2.7V,VCTL2=0V,PC port)
1
1.4
1.8
2.2
2.6
3
50 60 70 80 90 100
VSWR
Frequency (MHz)
P1-PC,P2-PC VSWR vs. Frequency
(VCTL1=2.7V,VCTL2=0V,P1 port)
nELECTRICAL CHARACTERISTICS
(f=50~100MHz, with Application circuit (Parts list 1), Losses of PCB, connector and DC blocking capacitor are included)
NJG1523KB2
- 7 -
-2
-1.6
-1.2
-0.8
-0.4
0
100 150 200 250 300 350 400 450 500
Insertion Loss (dB)
Frequency (MHz)
PC-P1 Insertion Loss vs. Frequency
(VCTL1=2.7V,VCTL2=0V,Pin=0dBm)
-2
-1.6
-1.2
-0.8
-0.4
0
100 150 200 250 300 350 400 450 500
Insertion Loss (dB)
Frequency (MHz)
PC-P2 Insertion Loss vs. Frequency
(VCTL1=0V,VCTL2=2.7V,Pin=0dBm)
-50
-40
-30
-20
-10
0
100 150 200 250 300 350 400 450 500
Isolation (dB)
Frequency (MHz)
PC-P1 Isolation vs. Frequency
(VCTL1=0V,VCTL2=2.7V,Pin=0dBm)
-50
-40
-30
-20
-10
0
100 150 200 250 300 350 400 450 500
Isolation (dB)
Frequency (MHz)
PC-P2 Isolation vs. Frequency
(VCTL1=2.7V,VCTL2=0V,Pin=0dBm)
1
1.4
1.8
2.2
2.6
3
100 150 200 250 300 350 400 450 500
VSWR
Frequency (MHz)
PC-P1 VSWR vs. Frequency
(VCTL1=2.7V,VCTL2=0V,PC port)
1
1.4
1.8
2.2
2.6
3
100 150 200 250 300 350 400 450 500
VSWR
Frequency (MHz)
PC-P1,P2-PC VSWR vs. Frequency
(VCTL1=2.7V,VCTL2=0V,P1 port)
nELECTRICAL CHARACTERISTICS
(f=100~500MHz, with Application circuit (Parts list 2), Losses of PCB, connector and DC blocking capacitor are included)
NJG1523KB2
- 8 -
-2
-1.6
-1.2
-0.8
-0.4
0
00.5 11.5 22.5 3
Insertion Loss (dB)
Frequency (GHz)
PC-P1 Insertion Loss vs. Frequency
(VCTL1=2.7V,VCTL2=0V,Pin=0dBm)
-2
-1.6
-1.2
-0.8
-0.4
0
00.5 11.5 22.5 3
Insertion Loss (dB)
Frequency (GHz)
PC-P2 Insertion Loss vs. Frequency
(VCTL1=0V,VCTL2=2.7V,Pin=0dBm)
-50
-40
-30
-20
-10
0
00.5 11.5 22.5 3
Isolation (dB)
Frequency (GHz)
PC-P1 Isolation vs. Frequency
(VCTL1=0V,VCTL2=2.7V,Pin=0dBm)
-50
-40
-30
-20
-10
0
00.5 11.5 22.5 3
Isolation (dB)
Frequency (GHz)
PC-P2 Isolation vs. Frequency
(VCTL1=2.7V,VCTL2=0V,Pin=0dBm)
1
1.4
1.8
2.2
2.6
3
00.5 11.5 22.5 3
VSWR
Frequency (GHz)
PC-P1 VSWR vs. Frequency
(VCTL1=2.7V,VCTL2=0V,PC port)
1
1.4
1.8
2.2
2.6
3
00.5 11.5 22.5 3
VSWR
Frequency (GHz)
P1-PC,P2-PC VSWR vs. Frequency
(VCTL1=2.7V,VCTL2=0V,P1 port)
nELECTRICAL CHARACTERISTICS
(f=0.1~3.0GHz, with Application circuit (Parts list 3), Losses of PCB, connector and DC blocking capacitor are included)
NJG1523KB2
- 9 -
-2
-1.6
-1.2
-0.8
-0.4
0
50 60 70 80 90 100
Insertion Loss (dB)
Frequency (MHz)
PCB Through Loss vs. Frequency
(Frequency:50MHz-100MHz)
-2
-1.6
-1.2
-0.8
-0.4
0
100 150 200 250 300 350 400 450 500
Insertion Loss (dB)
Frequency (MHz)
PCB Through Loss vs. Frequency
(Frequency:100MHz-500MHz)
-2
-1.6
-1.2
-0.8
-0.4
0
00.5 11.5 22.5 3
Insertion Loss (dB)
Frequency (GHz)
PCB Through Loss vs. Frequency
(Frequency:100MHz-3GHz)
nELECTRICAL CHARACTERISTICS
(Losses of PCB, connector and DC blocking capacitor at each frequency.)
NJG1523KB2
- 10 -
Parts List
nAPPLICATION CIRCUIT
nRECOMMENDED PCB DESIGN
PRECAUTIONS
[1] The DC blocking capacitors have to be placed at RF terminal of P1, P2 and PC.
Please choose appropriate capacitance values to the application frequency.
[2]To reduce stlipline influence on RF characteristics, please locate bypass
capacitors (C4, C5) close to each terminals.
[3]For good isolation, the GND terminal (2nd pin) must be placed possibly close to
ground plane of substrate, and through holes for GND should be placed near by
the pin connection.
Parts number List 1 List 2 List 3 Notes
50~100MHz 0.1~0.5GHz 0.5~2.5GHz
C1~C3 0.01uF 1000pF 56pF GRM36 MURATA
C4, C5 10pF 10pF 10pF GRM36 MURATA
PCB SIZE=19.4x14.0mm
PCB: FR-4, t=0.2mm
CAPACITOR: size 1005
STRIPLINE WIDTH=0.4mm
(TOP VIEW)
P2
PC
VCTL1VCTL2 C3
C2
C5C4
C1
P1
Zo=50ΩPC
P2
P1VCTL1 (2.7V/0V)
C1
C3
C5
VCTL2 (0V/2.7V)
C4
NJG1523KB2
Zo=50Ω
Zo=50Ω
C2
3
2
1
4
5
6
NJG1523KB2
- 11 -
■
PACKAGE OUTLINE (FLP6-B2)
Cautions on using this product
This product contains Gallium-Arsenide (GaAs) which is a harmful material.
• Do NOT eat or put into mouth.
• Do NOT dispose in fire or break up this product.
• Do NOT chemically make gas or powder with this product.
• To waste this product, please obey the relating law of your country.
This product may be damaged with electric static discharge (ESD) or spike voltage. Please handle
with care to avoid these damages.
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
Lead material : Copper
Lead surface finish : Solder plating
Molding material : Epoxy resin
UNIT : mm
Weight : 6.5mg
2.0±0.1
6 5 4
1 2 3
0.20.2
2.1±0.1
1.7±0.1
0.65 0.65
0.75±0.05 +0.1
0.2-0.05
+0.1
0.1 0.1
0.15-0.05
