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.
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, V
lLow current consumption 8uA typ. @f=2GHz, Pin=10dBm
lUltra small & ultra thin package FLP6-B2 (Mount Size: 2.1x2.0x0.75mm)
nPIN CONFIGURATION
Orientation Mark
NJG1522KB2
=2.7V
CTL
nTRUTH TABLE
V
V
PC-P1 ON OFF
PC-P2 OFF ON
NOTE: The values in the table are typical value of insertion loss and return loss.
CTL1
CTL2
Pin connection
1
6
1.P1
2.GND
2
5
3.P2
4.V
CTL2
5.PC
3
“H”=V
4
CTL (H),
“L”=V
6.V
CTL (L)
CTL1
H L L H
L H L H
Insertion Loss=17dB
P1 Return Loss=-2dB
Insertion Loss=17dB
P2 Return Loss=-2dB
Insertion Loss=18dB
P1 Return Loss=-2dB
Insertion Loss=18dB
P2 Return Loss=-2dB
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n
ABSOLUTE MAXIMUM RATINGS
PARAMETERS SYMBOL CONDITIONS RATINGS UNITS
Input Power P
Control Voltage V
Power Dissipation P
Operating Temp. T
Storage Temp. T
n
ELECTRICAL CHARACTERISTICS
PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS
in
CTL
D
opr
stg
V
CTL (L)
V
CTL (H)
(V
=0V, V
CTL (L)
- V
CTL (L)
=0V, V
(Ta=25°C, ZS=Zl=50Ω)
=2.7V 28 dBm
CTL (H)
7.5 V
450 mW
-30~+85 °C
-55~+125 °C
=2.7V, ZS=Zl=50Ω, C6=10pF, Ta=25°C)
CTL (H)
Control voltage (Low) V
Control voltage (High) V
Control current I
CTL (L)
CTL (H)
CTL
f=2.0GHz, Pin=10dBm - 8 14 uA
-0.2 0 0.2 V
2.5 2.7 6.5 V
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)
Isolation 2
(PC-P1, PC-P2, P1-P2)
Pin at 1dB
compression point
ISL1 f=1.0GHz, Pin=0dBm 25.5 27 - dB
ISL2 f=2.0GHz, Pin=0dBm 25 27 - dB
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 T
SW
f=0.05~2.5GHz - 20 - ns
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nTERMINAL INFORMATION
No. SYMBOL DESCRIPTIONS
1 P1
2 GND
3 P2
4 V
CTL2
5 PC
6 V
CTL1
RF port. This port is connected with PC port by controlling 6th pin (V
to 2.5~6.5V and 4th pin(V
) 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)
Ground terminal. Please connect this terminal with ground plane as close
as possible for excellent RF performance.
RF port. This port is connected with PC port by controlling 4th pin(V
to 2.5 – 6.5V and 6th pin(V
) 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)
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.
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)
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.
)
)
- 3 -
nELECTRICAL CHARACTERISTICS
(0.1~3.0GHz, with Application circuit, Losses of external circuit are excluded)
PC-P2 Insertion Loss vs. Frequency
(V
=0V,V
0
-0.4
-0.8
-1.2
Insertion Loss (dB)
-1.6
-2
0 0.5 1 1.5 2 2.5 3
CTL1
=2.7V,Pin=0dBm)
CTL2
Frequency (GHz)
PC-P1 Isolation vs. Frequency
(V
-10
-20
=0V,V
0
CTL1
=2.7V,Pin=0dBm)
CTL2
PC-P1 Insertion Loss vs. Frequency
(V
=2.7V,V
0
-0.4
-0.8
-1.2
Insertion Loss (dB)
-1.6
-2
0 0.5 1 1.5 2 2.5 3
CTL1
Frequency (GHz)
=0V,Pin=0dBm)
CTL2
PC-P2 Isolation vs. Frequency
(V
-10
-20
=2.7V,V
0
CTL1
=0V,Pin=0dBm)
CTL2
-30
Isolation (dB)
-40
-50
0 0.5 1 1.5 2 2.5 3
Frequency (GHz)
PC-P1 VSWR vs. Frequency
(V
=2.7V,V
3
2.6
2.2
VSWR
1.8
1.4
1
0 0.5 1 1.5 2 2.5 3
CTL1
Frequency (GHz)
=0V,PC port)
CTL2
-30
Isolation (dB)
-40
-50
0 0.5 1 1.5 2 2.5 3
Frequency (GHz)
P1-PC VSWR vs. Frequency
(V
=2.7V,V
3
2.6
2.2
VSWR
1.8
1.4
1
0 0.5 1 1.5 2 2.5 3
CTL1
Frequency (GHz)
=0V,P1 port)
CTL2
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