NJG1600KB2
SPDT SWITCH GaAs MMIC
I GENERAL DESCRIPTION
The NJG1600KB2 is a GaAs SPDT switch IC that features
small-sized package and low insertion loss, and ideally suited
for T/R switch of digital cordless telephone or other digital
wireless systems.
This switch is operated in the wide frequency range from
100MHz to 2.5GHz at low operating voltage from +2.5V.
The ultra small & ultra thin FLP6-B2 package is adopted.
I FEATURES
GLow insertion loss
I PACKAGE OUTLINE
NJG1600KB2
0.35dB typ. @f=1.0GHz
0.40dB typ. @f=2.0GHz
0.45dB typ. @f=2.5GHz
27dB typ. @f=1.0GHz
22dB typ. @f=2.0GHz
20dB typ. @f=2.5GHz
GHigh isolation
GPin at 1dB
compression point
GLow control current
GUltra small & ultra thin package
28dBm typ. @f=2.5GHz
5uA typ. @0.1~2.5GHz
FLP6-B2 (Package size: 2.1x2.0x0.75mm)
I PIN CONFIGURATION
Orientation Mark
KB2 Type
Top view
1
Pin connection
6
2
5
3
4
1.P1
2.GND
3.P2
4.VCTL2
5.PC
6.VCTL1
I TRUTH TABLE
“H”=VCTL (H), “L”=VCTL (L)
VCTL1
VCTL2
H
L
L
H
PC-P1
PC-P2
OFF
ON
ON
OFF
-1-
NJG1600KB2
I ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
CONDITIONS
CONDITIONS
UNITS
RF Input Power
PIN
VCTL=0V/3V
29
dBm
Control Voltage
VCTL
VCTL terminal
7.5
V
Power Dissipation
PD
450
mW
Operating Temp.
Topr
-40~+85
°C
Storage Temp.
Tstg
-55~+150
°C
I ELECTRICAL CHARACTERISTICS
(General conditions: VCTL (L)=0V, VCTL (H)=3V, ZS=Zl=50Ω, Ta=25°C)
PARAMETERS
SYMBOL
Control Voltage (LOW)
Control Voltage (HIGH)
MIN
TYP
MAX
UNITS
VCTL (L)
-0.2
-
0.2
V
VCTL (H)
2.5
3
6.5
V
CONDITIONS
Control Current
ICTL
f=2.5GHz, PIN=18dBm
-
5
10
uA
Insertion Loss 1
LOSS1
f=1.0GHz, PIN=18dBm
-
0.35
0.5
dB
Insertion Loss 2
LOSS2
f=2.0GHz, PIN=18dBm
-
0.40
0.55
dB
Insertion Loss 3
LOSS3
f=2.5GHz, PIN=18dBm
-
0.45
0.6
dB
Isolation 1
ISL1
f=1.0GHz, PIN=18dBm
24
27
-
dB
Isolation 2
ISL2
f=2.0GHz, PIN=18dBm
19
22
-
dB
Isolation 3
ISL2
f=2.5GHz, PIN=18dBm
17
20
-
dB
P-1dB(1)
f=2.5GHz(V=0V/2.7V)
24.5
26
-
dBm
P-1dB(2)
f=2.5GHz
26
28
-
dBm
VSWR
f=0.1~2.5GHz, ON state
-
1.1
1.3
f=0.1~2.5GHz
-
20
100
Pin at 1dB
Compression Point 1
Pin at 1dB
Compression Point 2
VSWR
Switching time
-2-
TSW
ns
NJG1600KB2
I TERMINAL INFORMATION
No.
SYMBOL
1
P1
2
GND
3
P2
4
VCTL2
5
PC
6
VCTL1
DESCRIPTION
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)
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 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)
Control port 2. The voltage of this port controls PC to P1 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-
NJG1600KB2
IELECTRICAL CHARACTERISTICS
(0.1~3.0GHz, with application circuit, without DC Blocking Capacitor, Losses of external circuit are excluded)
PC-P2 Insertion Loss vs. Frequency
PC-P1 Insertion Loss vs. Frequency
(VCTL=3.0V/0V)
0.0
0.0
-0.2
-0.2
Insertion Loss (dB)
Insertion Loss (dB)
(VCTL=3.0V/0V)
-0.4
-0.6
-0.4
-0.6
-0.8
-0.8
-1.0
-1.0
0.0
0.5
1.0
1.5
2.0
2.5
0.0
3.0
0.5
2.5
3.0
PC-P1 Isolation vs. Frequency
PC-P2 Isolation vs. Frequency
(VCTL=3.0V/0V)
0.0
-10.0
-10.0
Isolation (dB)
Isolation (dB)
2.0
Frequency (GHz)
0.0
-20.0
-30.0
-40.0
-20.0
-30.0
-40.0
-50.0
0.0
0.5
1.0
1.5
2.0
2.5
-50.0
3.0
0.0
0.5
Frequency (GHz)
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
PC-P1 VSWR vs. Frequency
PC-P2 VSWR vs. Frequency
(VCTL=3.0V/0V,P1 port)
(VCTL=3.0V/0V,P2 port)
2.0
2.0
1.8
1.8
1.6
1.6
VSWR
VSWR
1.5
Frequency (GHz)
(VCTL=3.0V/0V)
1.4
1.2
1.4
1.2
1.0
0.0
0.5
1.0
1.5
2.0
Frequency (GHz)
-4-
1.0
2.5
3.0
1.0
0.0
0.5
1.0
1.5
2.0
Frequency (GHz)
2.5
3.0
NJG1600KB2
IELECTRICAL CHARACTERISTICS
(Application circuit (Parts list 2))
Insertion Loss vs. Input Power
Input Power vs. Output Power,ICTL
(PC-P1 ON,f=2.5GHz)
(VCTL=3.0V/0V,f=2.5GHz)
30.0
0.0
20
VCTL(H)=2.3V
-1.0
VCTL(H)=2.3V
VCTL(H)=2.5V
VCTL(H)=2.7V
VCTL(H)=3.0V
VCTL(H)=3.5V
VCTL(H)=5V
VCTL(H)=6.5V
-1.5
-2.0
10.0
15.0
20.0
25.0
25.0
15
VCTL(H)=3.5V
VCTL(H)=5V
VCTL(H)=6.5V
20.0
10
15.0
5
10.0
10.0
30.0
15.0
20.0
25.0
0
30.0
Input Power (dBm)
Input Power (dBm)
PC-P1 Insertion Loss vs. Ambient Temperature
PC-P2 Isolation vs. Ambient Temperature
(PC-P1 ON, f=2.5GHz, Pin=18dBm)
(PC-P1 ON, VCTL=3.0V/0V, f=2.5GHz, Pin=18dBm)
0.0
-10
Isolation (dB)
-0.2
-0.4
-0.6
-15
-20
VCTL=2.5V
VCTL=2.7V
VCTL=3.0V
VCTL=5.0V
VCTL=6.5V
-0.8
-1.0
-50
0
50
-25
-50
100
o
0
50
100
o
Ambient Temperature ( C)
Ambient Temperature ( C)
PC-P1 P-1dB vs. Ambient Temperature
ICTL vs. Ambient Temperature
(PC-P1 ON, f=2.5GHz, Pin=18dBm)
(PC-P1 ON, f=2.5GHz)
20
30
28
ICTL (uA)
15
P-1dB (dBm)
VCTL(H)=2.7V
VCTL(H)=3.0V
Control Current (uA)
Output Power (dBm)
-0.5
Insertion Loss (dB)
Insertion Loss (dB)
VCTL(H)=2.5V
26
24
VCTL=2.5V
VCTL=2.7V
VCTL=3.0V
VCTL=5.0V
VCTL=6.5V
22
20
-50
0
50
Ambient Temperature ( C)
10
5
100
o
VCTL=2.5V
VCTL=2.7V
VCTL=3.0V
VCTL=5.0V
VCTL=6.5V
0
-50
0
50
100
o
Ambient Temperature ( C)
-5-
NJG1600KB2
IAPPLICATION CIRCUIT
VCTL1 (0V/2.7V)
Zo=50Ω
P1
1
6
2
5
C2
C4
C1
Zo=50Ω
PC
R1
Zo=50Ω
3
P2
4
C3
C5
VCTL2 (2.7V/0V)
NJG1600KB2
IRECOMMENDED PCB DESIGN
(TOP VIEW)
PCB SIZE=19.4x14.0mm
PCB:FR4,t=0.5mm
P2
C3
C2
C5
C4
STRIPLINE WIDTH=1.0mm
P1
CAPACITOR: size 1005
R1
VCTL2
C1
VCTL1
PC
IPARTS LIST
No.
Parts list 1
Parts list 2
R1
C1~C3
C4,C5
f=0.1~0.5GHz
560kohm
1000pF
1000pF
f=0.5~2.0GHz
560kohm
56pF
1000pF
PRECAUTIONS
[1] The DC blocking capacitors have to be placed at RF terminal of P1, P2 and PC.
[2] To reduce stlipline influence on RF characteristics, please locate bypass
capacitors (C4, C5) close to each terminals.
[3] To avoid degradation of isolation or high power characteristics, please layout
ground pattern right under this IC.
.
-6-
NJG1600KB2
IPACKAGE OUTLINE (FLP6-B2)
0.75±0.05
2.0±0.1
+0.1
0.15-0.05
5
4
1
2
3
2.1±0.1
0.2
1.7±0.1
0.2
6
0.65
0.1
0.1
0.65
Lead material
: Copper
Lead surface finish : Solder plating
Molding material : Epoxy resin
UNIT
: mm
Weight
: 6.5mg
+0.1
0.2-0.05
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.
[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.
This product may be damaged with electric static discharge (ESD) or spike voltage. Please
handle with care to avoid these damages.
-7-