NJG1663K44
- 1 -
Ver. 2009-11-10
X-SP4T SWITCH GaAs MMIC
GENERAL DESCRIPTION PACKAGE OUTLINE
The NJG1663K44 is a X (Cross) -SP4T* switch GaAs MMIC, which is
suitable for switching of balanced bandpass filters. The NJG1663K44
features very low phase error between on-state paths, low insertion loss,
low control voltage and wide frequency coverage. The ESD protection
circuits are integrated in the IC to achieve high ESD tolerance. The very small
and very thin QFN16-44 package is adopted.
*) X-SP4T is a paired SP4T switc h controlled synchronously. The X-SP4T includes two
SP4T switches whose RF lines have crossi ngs inside the MMIC.
FEATURES
Low phase error ±5 deg @f=2.0GHz
Low operation voltage VDD=+1.5~+4.5V
Low control voltage VCTL(H)=+1.3V min.
Low insertion loss 0.45dB typ. @1.0GHz, 0.55dB typ. @2.0GHz
High isolation 26dB typ. @1.0GHz, 20dB typ. @2.0GHz
High ESD tolerance Integrated ESD protection circuit
Small and thin package QFN16-44 (Package size: 2.3mm x 2.3mm x 0.45 mm typ)
Lead and halogen-free
PIN CONFIGURATION
TRUTH TABLE
“H”=VCTL(H), “L”=VCTL(L)
ON PATH CTL1 CTL2
PCA-P1A, PCB-P1B H L
PCA-P2A, PCB-P2B L L
PCA-P3A, PCB-P3B L H
PCA-P4A, PCB-P4B H H
NJG1663K44
Pin connection
1. P2B 10. CTL2
2. P2A 11. CTL1
3. P1A 12. GND
4. P1B 13. P4A
5. GND 14. P4B
6. PCB 15. P3A
7. PCA 16. P3B
8. GND
9. VDD
(Top View)
2 314
15
14
16
13
12 11 10 9
8
7
6
5
DECODER
Note: The Information on this datasheet will be subject to change without notice.
NJG1663K44
- 2 -
ABSOLUTE MAXIMUM RATINGS (Ta=+25°C, Zs=Zl=50Ω)
PARAMETER SYMBOL CONDITIONS RATINGS UNITS
RF Input Power PIN V
DD =2.7V, VCTL=0V/1.8V 28 dBm
Supply Voltage VDD VDD terminal 5.0 V
Control Voltage VCTL CTL1,CTL2 terminals 5.0 V
Power Dissipation PD Four-layer FR4 PCB (50mmx50mm),
Tj=150°C 1300 mW
Operating Temp. Topr -40~+85 °C
Storage Temp. Tstg -55~+150 °C
ELECTRICAL CHARACTERISTICS
(General conditions: Ta=+25°C, Zs=Zl=50Ω, VDD=2.7V, VCTL(L)=0V, VCTL(H)=1.8V, with application circuit)
PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage VDD 1.5 2.7 4.5 V
Operating Current IDD P
IN=0dBm - 30 60
μA
Control Voltage (LOW) VCTL(L) 0 0 0.4 V
Control Voltage (HIGH) VCTL(H) 1.3 1.8 4.5 V
Control Current ICTL f=1.0GHz, PIN=0dBm - 5 10
μA
NJG1663K44
- 3 -
ELECTRICAL CHARACTERISTICS
(General conditions: Ta=+25°C, Zs=Zl=50Ω, VDD=2.7V, VCTL(L)=0V, VCTL(H)=1.8V, with application circuit)
PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS
Insertion Loss 1 LOSS1 f=1.0GHz, PIN=0dBm - 0.45 0.65 dB
Insertion Loss 2 LOSS2 f=2.0GHz, PIN=0dBm - 0.55 0.75 dB
Insertion Loss 3 LOSS3 f=2.7GHz, PIN=0dBm - 0.80 1.00 dB
Isolation 1 ISL1 PCA-P1A, P2A, P3A, P4A
PCB-P1B, P2B, P3B, P4B
f=1.0GHz, PIN=0dBm 24 26 - dB
Isolation 2 ISL2 PCA-P1A, P2A, P3A, P4A
PCB-P1B, P2B, P3B, P4B
f=2.0GHz, PIN=0dBm 17 20 - dB
Isolation 3 ISL3 PCA-P1A, P2A, P3A, P4A
PCB-P1B, P2B, P3B, P4B
f=2.7GHz, PIN=0dBm 15 17 - dB
Isolation 4 ISL4 PCA-PCB port
f=2.0GHz, PIN=0dBm 18 20 - dB
Phase error PE f=2.0GHz, between ON
paths -5 - 5 deg
Input power at 0.2dB
Compression Point P-0.2dB f=2.0GHz 20 23 - dBm
VSWR VSWRi f=2.0GHz, On port - 1.2 1.4 -
Switching time TSW 50% VCTL to 10/90% RF - 2 5 μs
NJG1663K44
- 4 -
TERMINAL INFORMATION
No. SYMBOL DESCRIPTION
1 P2B
The 2nd RF port of the 2nd switch. This port is connected with PCB port. PCA
port is connected with P2A port at the same time. An external capacitor is
required to block DC voltage.
2 P2A
The 2nd RF port of the 1st switch. This port is connected with PCA port. PCB
port is connected with P2B port at the same time. An external capacitor is
required to block DC voltage.
3 P1A
The 1st RF port of the 1st switch. This port is connected with PCA port. PCB
port is connected with P1B port at the same time. An external capacitor is
required to block DC voltage.
4 P1B
The 1st RF port of the 2nd switch. This port is connected with PCB port. PCA
port is connected with P1A port at the same time. An external capacitor is
required to block DC voltage.
5 GND
Ground terminal. Please connect this terminal with ground plane as close as
possible for excellent RF performance.
6 PCB
Common RF port of the 2nd switch. This port is connected with either of P1B,
P2B, P3B, and P4B port. An external capacitor is required to block DC
voltage.
7 PCA
Common RF port of the 1st switch. This port is connected with either of P1A,
P2A, P3A, and P4A port. An external capacitor is required to block DC
voltage.
8 GND
Ground terminal. Please connect this terminal with ground plane as close as
possible for excellent RF performance.
9 VDD
Positive voltage supply terminal. The positive voltage (+1.5~+4.5V) has to be
supplied. Please connect a bypass capacitor with GND terminal for excellent
RF performance.
10 CTL2
Control signal input terminal. This terminal is set to High-Level (+1.3V~4.5V)
or Low-Level (0~+0.4V).
11 CTL1
Control signal input terminal. This terminal is set to High-Level (+1.3V~4.5V)
or Low-Level (0~+0.4V).
12 GND
Ground terminal. Please connect this terminal with ground plane as close as
possible for excellent RF performance.
13 P4A
The 4th RF port of the 1st switch. This port is connected with PCA port. PCB
port is connected with P4B port at the same time. An external capacitor is
required to block DC voltage.
14 P4B
The 4th RF port of the 2nd switch. This port is connected with PCB port. PCA
port is connected with P4A port at the same time. An external capacitor is
required to block DC voltage.
15 P3A
The 3rd RF port of the 1st switch. This port is connected with PCA port. PCB
port is connected with P3B port at the same time. An external capacitor is
required to block DC voltage.
16 P3B
The 3rd RF port of the 2nd switch. This port is connected with PCB port. PCA
port is connected with P3A port at the same time. An external capacitor is
required to block DC voltage.
NJG1663K44
- 5 -
ELECTRICAL CHARACTERISTICS
(General conditions: Ta=+25°C, Zs=Zl=50Ω, losses of external circuit are excluded, with application circuit)
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PCA-P1A
PCB-P1B
Insertion Loss vs. Frequency
(VDD=2.7V, CTL1=1.8V, CTL2=0V)
Ins er ti on Loss (dB)
Frequency (GHz )
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PCA-P2A
PCB-P2B
Insertion Loss vs. Frequency
(VDD=2.7V, CTL1 =0V, CTL2= 0V)
Ins er ti on Loss (dB )
Frequency (GHz)
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PCA-P3A
PCB-P3B
Insertion Loss vs. Frequency
(VDD=2.7V, CTL1=0V, CTL2=1.8V)
Ins ertion Loss (dB)
Frequency (GHz)
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PCA-P4A
PCB-P4B
Insertion Loss vs. Frequency
(VDD=2.7V, CT L1=1.8V, CTL2=1.8V)
Insertion Loss (d B)
Freque ncy (GHz )
1.0
1.5
2.0
2.5
3.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PCA Port
P1 A Port
PCB Port
P1B Po rt
VSWR vs. Frequen cy
(VDD=2.7V, CTL1=1.8V, CTL2=0V)
VSWR
Frequency (GHz)
1.0
1.5
2.0
2.5
3.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PCA Port
P2 A Port
PCB Port
P2B Po r t
VSWR vs. Frequenc y
(VDD=2.7V, CTL1=0V, CTL2=0V)
VSWR
Frequency (GHz )
NJG1663K44
- 6 -
ELECTRICAL CHARACTERISTICS
(General conditions: Ta=+25°C, Zs=Zl=50Ω, losses of external circuit are excluded, with application circuit)
1.0
1.5
2.0
2.5
3.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PCA Port
P3 A Port
PCB Port
P3B Po rt
VSW R vs. Frequency
(VDD=2.7V, CTL1=0V, CTL2=1.8V)
VSWR
Frequency (GHz )
1.0
1.5
2.0
2.5
3.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PCA Port
P4 A Po rt
PCB Port
P4B Po r t
VSW R vs. Fre qu en c y
(VDD=2.7V, CTL1=1.8V, CTL2=1.8V)
VSWR
Freque ncy (GHz )
-50
-45
-40
-35
-30
-25
-20
-15
-10
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PCA-PCB
PCA-P2A
PCA-P3A
PCA-P4A
PCB-P2B
PCB-P3B
PCB-P4B
Isola t io n v s . Fr e q ue nc y
(P1 ON, VDD=2.7V, CTL1=1.8V, CTL2=0V)
Isolation (dB )
Frequency (GHz)
-50
-45
-40
-35
-30
-25
-20
-15
-10
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PCA-PCB
PCA-P1A
PCA-P3A
PCA-P4A
PCB-P1B
PCB-P3B
PCB-P4B
Isolation v s. Frequenc y
(P2 ON, VDD=2.7V, CTL1=0V, CTL2=0V)
Isolation (dB)
Frequency (GHz)
-50
-45
-40
-35
-30
-25
-20
-15
-10
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PCA-PCB
PCA-P1A
PCA-P2A
PCA-P4A
PCB-P1B
PCB-P2B
PCB-P4B
Isolation vs . Frequenc y
(P3 ON, VDD=2.7V, CTL1=0V, CTL2=1.8V)
Isol ation (dB )
Frequency (GHz)
-50
-45
-40
-35
-30
-25
-20
-15
-10
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PCA-PCB
PCA-P1A
PCA-P2A
PCA-P3A
PCB-P1B
PCB-P2B
PCB-P3B
Isolati on vs. Frequency
(P4 ON, VDD=2.7V, CTL1=1.8V, CTL2=1.8V)
Isol ation (dB )
Freque ncy (GHz )
NJG1663K44
- 7 -
ELECTRICAL CHARACTERISTICS
(General conditions: Ta=+25°C, Zs=Zl=50Ω, losses of external circuit are excluded, with application circuit)
-6.0
-4.0
-2.0
0.0
2.0
4.0
6.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PC-P1 Phase Error vs. Frequency
(PCA-P1A, PCB-P1B, V DD=2.7V, CTL1=1.8V, CTL2=0V)
Phase Err or ( degree)
Frequency (GHz)
-6.0
-4.0
-2.0
0.0
2.0
4.0
6.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PC-P2 Phase Error vs. Frequency
(PCA-P2A, PCB-P2B, VDD=2.7V, CTL1=0 V , CTL2 =0V )
Phase Error ( degree)
Frequency (GHz )
-6.0
-4.0
-2.0
0.0
2.0
4.0
6.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PC-P3 Phase Error vs. Frequ ency
(PCA-P3A, PCB-P3B, V DD=2.7V, CTL1 =0V, CTL2 =1.8V)
Phase Error (degree)
Frequency (GHz )
-6.0
-4.0
-2.0
0.0
2.0
4.0
6.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PC-P4 Phase Error vs. Frequency
(PCA-P4A, PCB-P4B, V DD=2.7V, CTL1=1.8V, CTL2=1.8V)
Phase Err or ( degree)
Frequency (GHz )
Switching Time
Voltage (arb unit)
(P CA-P 1A/P 1B, VDD=2.7V, CTL2=0V)
CTL1
0.9μs
P1A
Time (1μs/div)
NJG1663K44
- 8 -
ELECTRICAL CHARACTERISTICS
(General conditions: Ta=+25°C, Zs=Zl=50Ω, losses of external circuit are excluded, with application circuit)
-2.0
-1.6
-1.2
-0.8
-0.4
0.0
0 5 10 15 20 25 30
VDD=1.5V
VDD=2.0V
VDD=2.7V
VDD=3.5V
VDD=4.5V
Insertion Loss vs. Input Power
(PCA-P1A ON, VDD=2.7V, CTL1 =1.8V, CT L2=0V, f=2GHz)
In sertion Lo ss (d B)
Input Power (dBm)
0
5
10
15
20
25
30
0 5 10 15 20 25 30
VDD=1.5V
VDD=2.0V
VDD=2.7V
VDD=3.5V
VDD=4.5V
IDD vs. Input Power
(PCA-P1A ON, CTL1= 1.8V, CTL2=0V, f=2GHz)
Cur rent IDD (u A)
Input Power (dBm)
NJG1663K44
- 9 -
ELECTRICAL CHARACTERISTICS
(General conditions: Zs=Zl=50Ω, losses of external circuit are excluded, with application circuit)
-10
-8
-6
-4
-2
0
2
4
6
8
10
-50 -25 0 25 50 75 100
f=1GHz
f=2GHz
f=2.7GHz
PC-P1 Phase Error vs. A mb ient Temperature
(PCA-P1A, PCB-P1B, VDD=2.7V, CTL1=1.8V, CTL2=0V)
Phase Error (degree)
Ambient Temperature (oC)
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Ta=-45oC
Ta=+25oC
Ta=+90oC
Insertion L oss vs. Frequency
(PCA-P1A ON, VDD=2.7 V, VCTL1=1.8V, VCTL2=0V, PIN=0dBm)
Insertion Loss (dB )
Frequency (GHz )
1.0
1.5
2.0
2.5
3.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Ta=-45oC
Ta=+25oC
Ta=+90oC
VSW R v s. Freque n c y
(PCA-P1A ON, VDD=2. 7 V, CTL1=1 . 8 V , CTL 2 =0V)
VSWR
Frequency (GHz)
-50
-40
-30
-20
-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Ta=-45oC
Ta=0oC
Ta=+90oC
PCA-P1A Isolatio n vs. Frequency
(PCA-P2A ON, VDD=2.7V, CTL1=1.8V, CTL2=0V)
PCA-P1A Isolation ( dB)
Frequency (GHz)
0
1
2
3
4
5
-50 -25 0 25 50 75 100
Switching Time vs. Amb ient Temperature
(PCA- P1A to PCA- P2A, V DD=2.7V, CTL1=0V to1.8V, CTL2=0V)
Swi tching Time (μs)
Ambie nt Te mperatu re (oC)
0
5
10
15
20
25
30
35
012345
Ta=+90oC
Ta=+70oC
Ta=+50oC
Ta=+25oC
Ta=0oC
Ta=-20oC
Ta=-45oC
ICTL vs. VCTL
Cu rre nt ICTL (uA)
Voltag e VCTL (V)
NJG1663K44
- 10 -
APPLICATION CIRCUIT (Top View)
PARTS LIST
Part ID Value Notes
C1~C10 56pF
C11 1000pF
MURATA
(GRM15)
2 314
15
14
16
13
12 11 10 9
8
7
6
5
DECODER
P4A
P4B
P3A
P3B
PCA
PCB
P2B P2A P1A P1B
CTL1 CTL2 VDD
C7
C8
C9
C10
C1 C2 C3 C4
C5
C6
C11
0/1.8V 0/1.8V 2.7V
NJG1663K44
- 11 -
TEST PCB LAYOUT (TOP VIEW)
Losses of PCB, capacitors and connectors
PRECAUTIONS
[1] The DC blocking capacitors (C1~C10) have to be placed at RF terminal of PCA, PCB, P1A, P2A, P3A, P4A, P1B,
P2B, P3B, and P4B.
[2] To reduce strip line influence on RF characteristics, please locate bypass capacitor (C11) close to VDD terminal.
[3] For good isolation, the GND terminal must be connected to the ground plane of substrate, and through-holes for
GND should be placed near b y the pin connection.
PCB: FR-4, t=0.2mm
Capacitor Size: 1005
Strip Line Width: 0.4mm
PCB Size: 53 x 40mm
C11 C6
C5
C4
C2
C1
C10
PCA
C9
PCB
P1B
P1A P2A
P2B
P3B
P3A
P4B
P4A
V
DD
CTL2
CTL1
GND
C8
C7
C3
Paths Frequency (GHz) Loss (dB)
1.0 0.49
2.0 0.79
PCA-P1A, PCB-P1B
PCA-P3A, PCB-P3B 2.7 0.98
1.0 0.45
2.0 0.77
PCA-P2A, PCB-P2B
PCA-P4A, PCB-P4B 2.7 0.95
NJG1663K44
- 12 -
PACKAGE OUTLINE (QFN16-44)
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
p
roduct,
p
lease obe
y
the relatin
g
law of
y
ou
r
countr
y
.
This
p
roduct ma
y
be dama
g
ed with electric static dischar
g
e
ESD
or s
p
ike volta
g
e. Please handle
[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.
UNITS : mm
SUBSTRATE MATERIAL : Copper
TERMINAL FINISH : Sn-Bi plating
MOLD MATERIAL : Epoxy resin
(Halogen-free)
WEIGHT : 7.7mg