NJG1548PC1
- 1 -
Ver.2005-07-14
SP3T SWITCH GaAs MMIC
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GENERAL DESCRIPTION
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PACKAGE OUTLINE
NJG1548PC1 is a GaAs high power SP3T switch MMIC for
antenna switch of tri-mode cellular phone applications such as
CDMA, AMPS and PCS. This switch features low loss, high
isolation, low operation current and low distortion at high input
power. The SP3T switch MMIC is controlled by internal Si
C-MOS decoder IC that has 2bit input signal ports.
The ultra small & ultra thin FFP16-C1 package is applied.
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FEATURES
q
Low voltage operation
V
DD
=2.5V min, V
CTL(H)
=1.5V min
q
Pin at 0.2dB compression point
35dBm typ. @f=0.9GHz, V
DD
=2.7V
q
Low insertion loss
0.40dB typ. @f=0.9GHz, P
IN
=25dBm, V
DD
=2.7V
0.50dB
typ.
@f=1.9GHz,
P
IN
=25dBm, V
DD
=2.7V
q
High isolation
30dB typ. @f=0.9GHz, P
IN
=25dBm, V
DD
=2.7V
30dB typ. @f=1.9GHz, P
IN
=25dBm,V
DD
=2.7V
q
Low operation current
5
A typ. @P
IN
=25dBm, V
DD
=2.7V
q
Ultra small & ultra thin package
FFP16-C1 (Package size: 2.5 x 2.5 x 0.85mm)
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PIN CONFIGURATION
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TRUTH TABLE
CTL1 CTL2
Path
H L
ANT-RF1
L H
ANT-RF2
H H
ANT-RF3
"H"=V
CTL(H)
, "L"=V
CTL(L)
NOTE: Please note that any information on this catalog is subject to change.
NJG1548PC1
FFP16-C1 Type
(TOP VIEW)
Orientation Mark
4
GaAs SW MMIC
DECODER
Si C-MOS IC
3
2
1
5
6
7
8
16
15
14
13
9
10
11
12
Pin Connection
1. GND
9. GND
2. CTL2
10.
RF2
3. CTL1
11. GND
4. VDD
12.
RF1
5. GND
13.
GND
6. GND
14.
GND
7. GND
15.
ANT
8. RF3
16.
GND
NJG1548PC1
- 2 -
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ABSOLUTE MAXIMUM RATINGS
(T
a
=+25C, Z
s
=Z
l
=50
)
PARAMETER SYMBOL
CONDITIONS
RATINGS
UNITS
RF Input Power
P
IN
V
DD
=2.7V 36
dBm
Supply Voltage
V
DD
VDD
Terminal
6.0
V
Control Voltage
V
CTL
CTL1 and CTL2 Terminals
6.0
V
Power Dissipation
P
D
At on PCB board
400 mW
Operating Temperature
T
opr
-40~+85 C
Storage Temperature
T
stg
-55~+150 C
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ELECTRICAL CHARACTERISTICS
(General conditions: T
a
=+25C, Z
s
=Z
l
=50
, V
CTL (L)
=0V, V
CTL (H)
=2.7V)
PARAMETER SYMBOL CONDITIONS MIN
TYP
MAX
UNITS
Operation Voltage
V
DD
2.5 2.7 5.0 V
Operating Current
I
DD
P
IN
=25dBm -
5.0
30
A
Control Voltage (Low)
V
CTL (L)
0
-
0.4
V
Control Voltage (High)
V
CTL (H)
1.5 2.7 V
DD
V
Control Current
I
CTL
-1.0 - 1.0
A
Insertion Loss 1
LOSS1
f=0.9GHz, P
IN
=25dBm -
0.40
0.55
dB
Insertion Loss 2
LOSS2
f=1.9GHz, P
IN
=25dBm -
0.50
0.65
dB
Isolation 1
ISL1
f=0.9GHz, P
IN
=25dBm
25
30 - dB
Isolation 2
ISL2
f=1.9GHz, P
IN
=25dBm
25
30 - dB
Pin at 0.2dB
Compression Point1
P
-0.2dB
(1) f=0.9GHz
32.5
35
-
dBm
Pin at 0.2dB
Compression Point2
P
-0.2dB
(2) f=1.9GHz
32.5
35
-
dBm
2nd Harmonics 1
2fo(1)
f=0.9GHz, P
IN
=25dBm -
-71
-60
dBc
2nd Harmonics 2
2fo(2)
f=1.9GHz, P
IN
=25dBm -
-75
-60
dBc
3rd Harmonics 1
3fo(1)
f=0.9GHz, P
IN
=25dBm -
-75
-60
dBc
3rd Harmonics 2
3fo(2)
f=1.9GHz, P
IN
=25dBm -
-75
-60
dBc
Input 3
rd order
Intercept Point 1
IIP3(1)
f=0.9+0.901GHz,
Pin=25dBm *1
+55 +60 - dBm
Input 3
rd order
Intercept Point 2
IIP3(2)
f=1.9+1.901GHz,
Pin=25dBm *1
+55 +60 - dBm
VSWR VSWR
i
on-state
ports,
f=1.9GHz
-
1.2 1.4
Switching Time
T
SW
- 0.35 -
s
*1: The input IP3 is defined as following equation.
IIP3=(3 x Pout - IM3) / 2 + LOSS
NJG1548PC1
- 3 -
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TERMINAL INFORMATION
No. SYMBOL
DESCRIPTION
1, 4, 5, 6
7, 9, 11,
13, 14,16
GND
Ground terminal. Please connect this terminal with ground plane as close
as possible for excellent RF performance.
15 ANT
RF port for Tx/Rx signal. An external capacitor is required to block the DC
bias voltage (V
DD
).
2 CTL2
Control signal input terminal of high impedance C-MOS. High level:
+1.5V~VDD, Low level: 0~0.4V. Please connect this terminal to GND or
VDD portion by 100k
resistor if the voltage level of this terminal is
undefined.
3 CTL1
Control signal input terminal of high impedance C-MOS. High level:
+1.5V~VDD, Low level: 0~0.4V. Please connect this terminal to GND or
VDD portion by 100k
resistor if the voltage level of this terminal is
undefined.
4 VDD
Positive power supply terminal. The positive voltage (+2.5~+5.0V) has to
be supplied with or before other DC voltage supply terminal to avoid latch
up effect.
8 RF3
RF port. To block the DC bias voltage of internal circuit, an external
capacitor is required.
10 RF2
RF port. To block the DC bias voltage of internal circuit, an external
capacitor is required.
12 RF1
RF port. To block the DC bias voltage of internal circuit, an external
capacitor is required.
NJG1548PC1
- 4 -
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ELECTRICAL CHARACTERISTICS
(with application circuit, Losses of external circuit are excluded)
-2.0
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
I
n
se
r
t
i
o
n
Loss
(dB)
Isola
t
ion (dB)
Freqency (GHz)
RF2-ANT ISL
RF1-ANT ISL
Loss, ISL vs. Frequency
(RF3-ANT ON, V
DD
=2.7V)
1.0
1.5
2.0
2.5
3.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
RF1-ANT ON
RF2-ANT ON
RF3-ANT ON
VSW
R
(RF
Port)
Frequency (GHz)
VSWR vs Frequency
(V
DD
=2.7V)
Time (0.5us/div)
Switching Time
(V
DD
=2.7V, CTL1=2.7V)
CTL2
RF1-ANT
360ns
160ns
H
L
-2.0
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
I
n
se
r
t
i
o
n
Loss
(dB
)
Isola
t
ion (d
B)
Freqency (GHz)
RF2-ANT ISL
RF3-ANT ISL
Loss, ISL vs. Frequency
(RF1-ANT ON, V
DD
=2.7V)
-2.0
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
I
n
se
r
t
i
o
n
Loss
(dB
)
Isola
t
ion (d
B)
Freqency (GHz)
RF1-ANT ISL
RF3-ANT ISL
Loss, ISL vs. Frequency
(RF2-ANT ON, V
DD
=2.7V)
NJG1548PC1
- 5 -
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ELECTRICAL CHARACTERISTICS
(with application circuit, Losses of external circuit are excluded)
-40
-35
-30
-25
-20
-15
-10
-5
0
20
22
24
26
28
30
32
34
36
A
N
T- R
F
2
Isolation
(dB)
Input Power (dBm)
Isolation vs Input Power
(RF1-ANT ON, f=0.9GHz, V
DD
=2.7V)
-90
-80
-70
-60
-50
-40
-30
20
22
24
26
28
30
32
34
36
V
DD
=2.5V
V
DD
=2.7V
V
DD
=3.0V
V
DD
=4.0V
V
DD
=5.0V
2
nd Ha
rm
o
n
ic
s
(dBc
)
Input Power (dBm)
2nd Harmonics vs Input Power
(f=0.9GHz, RF1-ANT ON)
-90
-80
-70
-60
-50
-40
-30
20
22
24
26
28
30
32
34
V
DD
=2.5V
V
DD
=2.7V
V
DD
=3.0V
V
DD
=4.0V
V
DD
=5.0V
3
r
d Harm
oni
cs
(dB
c
)
3rd Harmonics vs Input Power
(f=0.9GHz, RF1-ANT ON)
Input Power (dBm)
-80
-60
-40
-20
0
20
40
60
80
20
30
40
50
60
70
O
u
tpu
t
Pow
e
r,
IM
3
(d
B
m
)
Input Power (dBm)
Output Power, IM3 vs Input Power
(RF1-ANT ON, f=0.9+0.901GHz, V
DD
=2.7V)
IIP3=60.4dBm
35
40
45
50
55
60
65
70
75
20
21
22
23
24
25
26
27
V
DD
=2.5V
V
DD
=2.7V
V
DD
=3.0V
V
DD
=4.0V
V
DD
=5.0V
Input I
P
3
(dBm)
Input Power (dBm)
IIP3 vs Input Power
(RF1-ANT ON, f=0.9+0.901GHz)
-2.0
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
0
2
4
6
8
10
12
14
16
18
20
20
22
24
26
28
30
32
34
36
V
DD
=2.5V
V
DD
=2.7V
V
DD
=3.0V
V
DD
=4.0V
V
DD
=5.0V
V
DD
=2.5V
V
DD
=2.7V
V
DD
=3.0V
V
DD
=4.0V
V
DD
=5.0V
Ins
e
r
t
io
n
L
o
s
s
(dB
)
O
p
e
r
at
i
o
n
Cu
r
r
ent
I
DD
(u
A
)
Input Power (dBm)
Loss, I
DD
vs Input Power
(f=0.9GHz, RF1-ANT ON)
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