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NJG1517KB2
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SPDT SWITCH GaAs MMIC
n
GENERAL DESCRIPTION nPACKAGE OUTLINE
NJG1517KB2 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.
nFEATURES
lSingle low voltage control +2.5~+6.5V
lLow insertion loss 0.3dB typ. @f=1GHz, Pin=0dBm
lHigh isolation 27dB typ. @f=1GHz, Pin=0dBm
lHandling power 20dBm max. @f=2GHz, V
CTL
=2.7V
lLow current consumption 5uA typ. @f=2GHz, Pin=10dBm, R1=560kΩ
lUltra small & ultra thin package FLP6-B2 (Mount Size: 2.1x2.0x0.75mm)
nPIN CONFIGURATION
nTRUTH TABLE
V
CTL1
H L L H
V
CTL2
L H L H
P1-PC ON OFF
Insertion Loss=13dB
P1 Return Loss=-3dB
Insertion Loss=13dB
P1 Return Loss=-2dB
P2-PC OFF ON
Insertion Loss=13dB
P2 Return Loss=-3dB
Insertion Loss=13dB
P2 Return Loss=-2dB
“H”=V
CTL (H),
“L”=V
CTL (L)
NOTE: The values of insertion losses and return losses are typical values at 2.0GHz.
NJG1517KB2
Pin Connection
1.P1
2.EXTCAP
3.P2
4.V
CTL2
5.PC
6.V
CTL1
KB2 Type
(Top view)
3
2
1
4
5
6
Orientation Mark
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NJG1517KB2
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n
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C, ZS=Zl=50Ω)
PARAMETERS SYMBOL CONDITIONS RATINGS UNITS
Input Power P
in
V
CTL (L)
=0V, V
CTL (H)
=2.7V 28 dBm
Control Voltage V
CTL
V
CTL (H)
- V
CTL (L)
7.5 V
Power Dissipation P
D
19.4x14.0x0.2mm
FR4 Assembled Board, Tj=125°C
450 mW
Operating Temp. T
opr
-30~+85 °C
Storage Temp. T
stg
-55~+125 °C
n
ELECTRICAL CHARACTERISTICS
(V
CTL (L)
=0V, V
CTL (H)
=2.7V, ZS=Zl=50Ω, R1=560KΩ, C6=10pF, Ta=25°C)
PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS
Control voltage (Low) V
CTL (L)
-0.2 0 0.2 V
Control voltage (High) V
CTL (H)
2.5 2.7 6.5 V
Control current I
CTL
f=2.0GHz, Pin=10dBm - 5 6 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 27 - dB
Isolation 2
(PC-P1, PC-P2, P1-P2)
ISL2
f=2.0GHz, Pin=0dBm,
C6=5pF
21 23 - dB
Pin at 1dB
compression point
P
-1dB
f=2.0GHz 20 23 - dBm
VSWR (PC, P1, P2) VSWR f=0.05~2.5GHz, ON State - 1.3 1.6
Switching time T
SW
f=0.05~2.5GHz - 15 - ns
* The control current ICTL depends on the resistance of R1. Smaller resistance of R1 make larger control current.
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NJG1517KB2
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n
TERMINAL INFORMATION
No. SYMBOL DESCRIPTIONS
1 P1
RF port. This port is connected with PC port by controlling 6th pin (V
CTL (H)
) to
2.5~6.5V and 4th 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: 0.01µF,
0.1~0.5GHz: 1000pF, 0.5~2.5GHz: 56pF)
2 EXTCAP
External capacitor terminal. The isolation characteristics depends on the
value of the capacitor which connected with GND. An external capacitor is
required to block the DC bias voltage of internal circuit. (50MHz~1.7GHz:
10pF, 1.7~2.5GHz: 5pF)
3 P2
RF port. This port is connected with PC port by controlling 4th pin(V
CTL(H)
) to
2.5 – 6.5V and 6th pin(V
CTL(L)
) to -0.2~+0.2V. In order to block the DC bias
voltage of internal circuit, an external capacitor is required. (50~100MHz:
0.01µF, 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 highstate (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: 0.01µF, 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 highstate (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.
Page 4
NJG1517KB2
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-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)
n
ELECTRICAL CHARACTERISTICS
(100MHz~3GHz, with application circuit, R1=560KΩ, C6=10pF, Losses of external circuit are excluded)
Page 5
NJG1517KB2
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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)
15
20
25
30
-50 0 50 100
VCTL=2.5V
VCTL=2.7V
VCTL=3.0V
VCTL=3.5V
VCTL=5.0V
VCTL=6.5V
Isolation (dB)
Ambient Temperature (oC)
Isolation vs. Ambient Temperature
(PC-P1 port,fin=2GHz,VCTL(L)=0V)
0
5
10
15
20
-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=2GHz,VCTL(L)=0V)
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)
10
15
20
25
30
35
3
4
5
6
7
8
10 15 20 25 30 35
Pout
P-1dB
ICTL
Output Power (dBm)
ICTL (uA)
Input Power (dBm)
NJG1517KB2
Pin VS. Pout&ICTL
P-1dB=24.6dBm
n
ELECTRICAL CHARACTERISTICS
(with application circuit, without DC Blocking Capacitor, Losses of external circuit are excluded)
Switching Speed
(V
CTL (L)
=0V, V
CTL (H)
=2.7V)
RF
16.5ns
VCTL
Trig’d
625mV
100mV
/div
-375mV
-13.8nF 86.2nF10ns/div
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NJG1517KB2
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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
(V
CTL1
=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
(V
CTL1
=0V,V
CTL2
=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
(V
CTL1
=0V,V
CTL2
=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
(V
CTL1
=2.7V,V
CTL2
=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
(V
CTL1
=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
(V
CTL1
=2.7V,V
CTL2
=0V,P1 port)
n
ELECTRICAL CHARACTERISTICS
(50MHz~100MHz, with Application circuit (Parts list 1), Losses of PCB, connector and DC blocking capacitor are included)
Page 7
NJG1517KB2
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-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
(V
CTL1
=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
(V
CTL1
=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-P1 Isolation vs. Frequency
(V
CTL1
=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
(V
CTL1
=2.7V,V
CTL2
=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
(V
CTL1
=2.7V,V
CTL2
=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
(V
CTL1
=2.7V,V
CTL2
=0V,P1 port)
n
ELECTRICAL CHARACTERISTICS
(100MHz~500MHz, with Application circuit (Parts list 2), Losses of PCB, connector and DC blocking capacitor are included)
Page 8
NJG1517KB2
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-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,P2-PC VSWR vs. Frequency
(V
CTL1
=2.7V,V
CTL2
=0V,P1 port)
n
ELECTRICAL CHARACTERISTICS
(0.1GHz~3GHz, with Application circuit (Parts list 3), Losses of PCB, connector and DC blocking capacitor are included)
Page 9
NJG1517KB2
- 9 -
-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)
n
ELECTRICAL CHARACTERISTICS
(0.1GHz~3GHz, with Application circuit (Parts list 4), Losses of PCB, connector and DC blocking capacitor are included)
Page 10
NJG1517KB2
- 10 -
-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
0 0.5 1 1.5 2 2.5 3
Insertion Loss (dB)
Frequency (GHz)
PCB Through Loss vs. Frequency
(Frequency:100MHz-3GHz)
n
ELECTRICAL CHARACTERISTICS
(Losses of PCB, connector and DC blocking capacitor at each frequency.)
Page 11
NJG1517KB2
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3
2
1
4
5
6
PC
P
2 P1
V
CTL1
(2.7V/0V)
Zo=50Ω
C1
C3
C5
C2
V
CTL2
(0V/2.7V)
C4
NJG1517KB2
C6
R1
Zo=50Ω
Zo=50Ω
n
APPLICATION CIRCUIT
n
RECOMMENDED 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 EXTCAP 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 List 4
fin=50~100MHz fin=0.1~0.5GHz fin=0.5~1.7GHz fin=1.7~2.5GHz
C1~C3 0.01uF 1000pF 56pF 56pF
C4, C5 10pF 10pF 10pF 10pF
C6 10pF 10pF 10pF 5pF
R1 560KΩ 560KΩ 560KΩ 560KΩ
Parts List
PCB SIZE=19.4x14mm
PCB: FR-4, t=0.2mm
CAPACITOR: size 1005
STRIPLINE WIDTH=0.4mm
(TOP VIEW)
P2
P1
PC
V
CTL1
V
CTL2
C3
C2
C5
C4
C1
R1
C6
Page 12
NJG1517KB2
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n
PACKAGE OUTLINE (FLP6-B2)
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. 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.
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
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