NJG1522KB2
- 1 -
SPDT SWITCH GaAs MMIC
nGENERAL DESCRIPTION nPACKAGE OUTLINE
NJG1522KB2 is a GaAs SPDT switch suited for RF
receiving circuit of cellular phone handsets.
This switch features very low loss, high isolation and
exhibits wide operating frequency range from 50MHz to
3.0GHz at low voltage of 2.5V.
The ultra small & ultra thin FLP6 package is applied.
Reversed logic version of this device is NJG1532KB2.
nFEATURES
lSingle low voltage control +2.5~+6.5V
lLow insertion loss 0.3dB typ. @f=1GHz, PIN=0dBm
0.5dB typ. @f=2GHz, PIN=0dBm
lHigh isolation 27dB typ. @f=1~2GHz, PIN=0dBm
lHandling power 20dBm max. @f=2GHz, VCTL=2.7V
lLow current consumption 8uA typ. @f=2GHz, PIN=10dBm
lUltra small & ultra thin package FLP6-B2 (Package size: 2.0x2.1x0.75mm)
nPIN CONFIGURATION
nTRUTH TABLE
VCTL1 H L L H
VCTL2 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
“H”=VCTL (H), “L”=VCTL (L)
NJG1522KB2
KB2 Type
Top view
3
2
1
4
5
6 Pin connection
1.P1
2.GND
3.P2
4.VCTL2
5.PC
6.VCTL1
Orientation Mark
Note: Reversed logic version of this device is NJG1532KB2.
The values of insertion losses and return losses are the typical values at 2GHz.
NJG1522KB2
- 2 -
n
ABSOLUTE MAXIMUM RATINGS (Ta=25°C, ZS=Zl=50Ω)
PARAMETERS SYMBOL CONDITIONS RATINGS UNITS
Input Power PIN VCTL (L)=0V, VCTL (H)=2.7V 28 dBm
Control Voltage VCTL VCTL (H) - VCTL (L) 7.5 V
Power Dissipation PD 450 mW
Operating Temp. Topr -30~+85 °C
Storage Temp. Tstg -55~+125 °C
n
ELECTRICAL CHARACTERISTICS (VCTL (L)=0V, VCTL (H)=2.7V, ZS=Zl=50Ω, Ta=25°C)
PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS
Control voltage (Low) VCTL (L) -0.2 0 0.2 V
Control voltage (High) VCTL (H) 2.5 2.7 6.5 V
Control current ICTL f=2.0GHz, PIN=10dBm - 8 14 uA
Insertion loss 1 LOSS1 f=1.0GHz, PIN=0dBm - 0.3 0.6 dB
Insertion loss 2 LOSS2 f=2.0GHz, PIN=0dBm - 0.5 0.8 dB
Isolation 1
(PC-P1, PC-P2, P1-P2) ISL1 f=1.0GHz, PIN=0dBm 25.5 27 - dB
Isolation 2
(PC-P1, PC-P2, P1-P2) ISL2 f=2.0GHz, PIN=0dBm 25 27 - dB
Pin at 1dB
compression point P-1dB f=2.0GHz 20 24 - dBm
VSWR (PC, P1, P2) VSWR f=0.05~2.2GHz, ON State - 1.3 1.6
Switching time TSW f=0.05~2.5GHz - 20 - ns
NJG1522KB2
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nTERMINAL INFORMATION
No. SYMBOL DESCRIPTIONS
1 P1 RF port. This port is connected with PC port by controlling 6th pin (VCTL (H))
to 2.5~6.5V and 4th pin(VCTL(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 4th pin (VCTL(H))
to 2.5~6.5V and 6th pin(VCTL(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 VCTL2
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 6th 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 VCTL1
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 4th pin have
to be set to opposite state. The bypass capacitor has to be chosen to
reduce switching time delay from 10pF~1000pF range.
NJG1522KB2
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nELECTRICAL CHARACTERISTICS
(0.1~3.0GHz, with Application circuit, Losses of external circuit are excluded)
-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,V
CTL2=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)
NJG1522KB2
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10
15
20
25
30
0
2
4
6
8
10
12
10 15 20 25 30
Pout
P-1dB
ICTL
loss
Output Power (dBm)
ICTL (uA)
Input Power (dBm)
P-1dB=24.6dBm
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
(VCTL1=0V,VCTL2=2.7V,P2 port) Pin vs. Pout, ICTL and Loss
nELECTRICAL CHARACTERISTICS
(with application circuit, without DC Blocking Capacitor, Losses of external circuit are excluded)
0
0.2
0.4
0.6
0.8
1
-50 0 50 100
VCTL=2.5V
VCTL=2.7V
VCTL=3.0V
VCTL=3.5V
VCTL=5.0V
VCTL=6.5V
Insertion Loss (dB)
Ambient Temperature ( oC)
Insertion Loss vs. Ambient Temperature
(PC-P1 port, fin=2GHz, VCTL(L)=0V)
0
5
10
15
20
25
30
35
-50 0 50 100
VCTL=2.5V
VCTL=2.7V
VCTL=3.0V
VCTL=3.5V
VCTL=5.0V
VCTL=6.5V
Control Current (uA)
Ambient Temperature ( oC)
ICTL vs. Ambient Temperature
(PC-P1 port, fin=1GHz, VCTL(L)=0V)
RF
21.4n
VCTL
Switching Speed
(VCTL (L)=0V, VCTL (H)=2.7V)
Trig’d
625mV
100mV
/div
-375mV
-13.8nF 86.2nF
10ns/div
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
Isolation (dB)
Ambient Temperature (Co)
Isolation vs. Ambient Temperature
(PC-P1 port,fin=1GHz,VCTL(L)=0V)
NJG1522KB2
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-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,V
CTL2=0V,Pin=0dBm)
-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)
-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,V
CTL2=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)
NJG1522KB2
- 7 -
nELECTRICAL CHARACTERISTICS
(f=100~500MHz, with Application circuit (Parts list 2), Losses of PCB, connector and DC blocking capacitor are included)
-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,V
CTL2=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,V
CTL2=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)
NJG1522KB2
- 8 -
nELECTRICAL CHARACTERISTICS
(f=0.1~3.0GHz, with Application circuit (Parts list 3), Losses of PCB, connector and DC blocking capacitor are included)
-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,V
CTL2=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,V
CTL2=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)
NJG1522KB2
- 9 -
nELECTRICAL CHARACTERISTICS
(Losses of PCB, connector and DC blocking capacitor at each frequency.)
-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)
NJG1522KB2
- 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 stripline 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 P1
PC
VCTL1 VCTL2 C3
C2
C5 C4
C1
Zo=50Ω PC
P2
P1 VCTL1 (2.7V/0V)
C1
C3
C5
VCTL2 (0V/2.7V)
C4
NJG1522KB2
Zo=50Ω
Zo=50Ω
C2
3
2
1
4
5
6
NJG1522KB2
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nPACKAGE OUTLINE
Lead material : Copper
Lead surface finish : Solder plating
Molding material : Epoxy resin
UNIT : mm
Weight : 6.5mg
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. Pleas
e
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.
2.0±0.1
654
123
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
