NJG1507R
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SPDT SWITCH GaAs MMIC
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GENERAL DESCRIPTION
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PACKAGE OUTLINE
NJG1507R is a GaAs SPDT switch IC which exhibits low
loss and high isolation, and ideally suitable for T/R switch of
the digital wireless phone.
This switch is operated in the wide frequency range from
50MHz to 3.0GHz at low operating voltage from +2.5V with
small VSP8 package.
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FEATURES
lSingle and low positive supply voltage +2.5~+5.5V
lLow insertion loss 0.5dB typ. @ f=2GHz, Pin=22dBm
lTransmission power 27dBm max. @ f=2GHz, VCTL=3.0V
lHigh isolation 33dB typ. @ f=2GHz, Pin=22dBm
lLow control current 5uA typ. @ f=0.05~2.5GHz, Pin=22dBm
lPackage VSP8 (Mount Size: 4.0x2.9x1.2mm)
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PIN CONFIGURATION
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TRUTH TABLE
VCTR1HL L H
VCTR2LHLH
P1-PC OFF ON Loss =15dB
P
1 Return Loss =-3dB Loss =16dB
P1 Return Loss =-2dB
P2-PC ON OFF Loss =15dB
P2 Return Loss =-3dB Loss =16dB
P2 Return Loss =-2dB
NJG1507R
R TYPE
(Top View)
6
7
8
1
2
3
4 5
Pin Connection
1.VCTR2
2.P2
3.GND
4.GND
5.PC
6.GND
7.P1
8.VCTR1
“H”=VCTR (H), ”L”=VCTR (L)
Note) The values of "Loss” and “Return Loss” are typical values at 2.0GHz.
NJG1507R
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ABSOLUTE MAXIMUM RATINGS (Ta=25°C, Zs=Zl=50Ω)
PARAMETER SYMBOL RATINGS UNITS
Input power Pin 33 dBm
Control voltage VCTR 6.0 V
Power dissipation PD320 mW
Operating Temp. Topr -30~+85 °C
Storage Temp. Tstg -40~+150 °C
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ELECTRICAL CHARACTERISTICS (VCTR (L)=0V, VCTR (H)=2.7V, Zs=Zo=50Ω, Ta=25°C)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Control voltage (L)VCTR (L) f=0.05~2.5GHz, P
in
=22dBm -0.2 00.2 V
Control voltage (H) VCTR (H) f=0.05~2.5GHz, P
in
=22dBm 2.5 2.7 5.5 V
Control current ICTR f=0.05~2.5GHz, P
in
=22dBm -5.0 8.0 uA
Insertion loss1 LOSS1 f=1.0GHz, Pin=22dBm -0.40.7 dB
Insertion loss2 LOSS2 f=2.0GHz, Pin=22dBm -0.50.8 dB
Isolation 1
(PC-P1, PC-P2, P1-P2) ISL1 f=1.0GHz, Pin=22dBm 25 31 -dB
Isolation 2
(PC-P1, PC-P2, P1-P2) ISL2 f=2.0GHz, Pin=22dBm 25 33 -dB
Pin at 1dB
compression point 1 P-1dB (1) f=2.0GHz 26 28 -dBm
Pin at 1dB
compression point 2 P-1dB (2) VCTR (H)=3.0V, f=2.0GHz 27 30 -dBm
VSWR VSWR f=0.05~2.5GHz, ON STATE -1.2 1.5
Switching time TSW f=0.05~2.5GHz -15 -ns
NJG1507R
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TYPICAL CHARACTERISTICS
NJG1507R
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TYPICAL CHARACTERISTICS
NJG1507R
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TYPICAL CHARACTERISTICS
NJG1507R
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TYPICAL CHARACTERISTICS
NJG1507R
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TYPICAL CHARACTERISTICS
NJG1507R
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TYPICAL CHARACTERISTICS
NJG1507R
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TYPICAL CHARACTERISTICS
MARKER f(MHz) Mag. Ang. (∠o)
1 50 0.952 -15.9
2 800 0.780 -171.0
3 1500 0.740 117.0
4 2000 0.726 75.8
5 3000 0.698 1.2
MARKER f(MHz) Mag. Ang. (∠o)
1 50 0.952 -15.9
2 800 0.780 -171.0
3 1500 0.740 117.0
4 2000 0.726 75.8
5 3000 0.698 1.2
NJG1507R
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TYPICAL CHARACTERISTICS
Scattering Parameters: S11 (OFF STATE)
(VCTR=0/2.7V, 50ΩSystem)
NJG1507R
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APPLICATION CIRCUIT 1: Single control signal operation by using C-MOS inverter.
[1]Please connect bypass capacitors to the supply terminals of the C-MOS inverter.
[2]In order to stabilize input impedance of inverter, please pull down using 510KΩ resister from
the input terminal of the C-MOS inverter to the ground plane.
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APPLICATION CIRCUIT 2: Single control signal operation by using a transistor.
NJG1507R
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C2 C3
PC
VCTR1 VCTR2
P2P1
C1
C4 C5
1
NJG1507R
u
R1
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TEST CIRCUIT
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RECOMMENDED PCB DESIGN
Precautions
[1]External capacitors should be connected to the input and output RF terminals (P1, P2,
PC) to block the DC current. The above example is a circuit at 1.9GHz. Please select the
capacitor value suitable for actual frequency from 10pF to 1000pF.
[2]Decoupling capacitors should be connected to the control terminals (VCTR1, VCTR2) as
close as possible. The values of these capacitors should be selected from 5pF to
100pF range. Please consider that these values are very effective to switching time
(Larger capacitor gives longer switching time).
[3]In order to keep good isolation characteristics, the ground terminals (3, 4, 6pin)
should be connected to the ground pattern with wider width as close as possible, and
through-hole in the ground plane should also be placed as close as possible.
PCB SIZE=19.5x14.0mm
PCB: FR-4, t=0.2mm
CAPACITOR: size 1005
STRIPLINE WIDTH=0.5mm
C1~C3: 56pF
C4, C5: 10pF
R1: 510KΩ
u: Please short between Pin4
and ground plane directly as
close as possible.
(TOP VIEW)
NJG1507R
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nPACKAGE OUTLINE (VSP8)
Lead material : Copper
Lead surface finish : Solder plating
Molding material : Epoxy resin
UNIT : mm
Weight : 22mg
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.
