NJG1698K84
High Isolation SP3T SWITCH
I
GENERAL DESCRIPTION
The NJG1698K84 is a two bit control GaAs high isolation SP3T switch. It
features very high isolation and low control voltage.
It has integrated DC
blocking capacitor at PC port.
It has integrated ESD protection circuits to achieve high ESD tolerance.
The small and thin 10-pin QFN10-84 package is adopted.
I
APPLICATIONS
Multi-mode 2G/3G and LTE application receive system
Pre PA switching, reception bands switching applications
General purpose switching applications
I
FEATURES
G
Low voltage logic control
G
Low voltage operation
G
High isolation
I
PACKAGE OUTLINE
NJG1698K84
V
CTL(H)
=1.8V typ.
V
DD
=2.7V typ.
51dB typ. @f=1.0GHz, P
IN
=0dBm
50dB typ. @f=2.0GHz, P
IN
=0dBm
43dB typ. @f=2.7GHz, P
IN
=0dBm
G
Low insertion loss
0.50dB typ. @f=1.0GHz, P
IN
=0dBm
0.55dB typ. @f=2.0GHz, P
IN
=0dBm
0.60dB typ. @f=2.7GHz, P
IN
=0dBm
G
Small & thin package
QFN10-84 Package (Package size: 1.55 x 1.15 x 0.37mm typ.)
G
RoHS compliant and Halogen Free, MSL1
I
PIN CONFIGURATION
P1
4
(TOP VIEW)
VDD
GND
3
2
PC
1
DECODER
GND
5
10
GND
6
7
8
9
P2
I
TRUTH TABLE
VCTL1 VCTL2
P3
Pin connection
1. PC
2. GND
3. VDD
4. P1
5. GND
6. P2
7. VCTL1
8. VCTL2
9. P3
10. GND
“H”=V
CTL(H),
“L”=V
CTL(L)
VCTL1
VCTL2
H
L
L
H
H
H
PATH
PC-P1
PC-P2
PC-P3
NOTE: Please note that any information on this datasheet will be subject to change.
Ver.2014-8-26
-1-
NJG1698K84
I
ABSOLUTE MAXIMUM RATINGS
(T
a
=+25°C, Z
s
=Z
l
=50Ω)
PARAMETER
RF Input Power
Supply Voltage
Control Voltage
Power Dissipation
Operating
Temperature
Storage Temperature
SYMBOL
P
IN
V
DD
V
CTL
P
D
T
opr
T
stg
V
DD
=2.7V
VDD terminal
CONDITIONS
RATINGS
28
5.0
5.0
270
-40 to +90
-55 to +150
UNITS
dBm
V
V
mW
°C
°C
VCTL terminal
Four-layer FR4 PCB without through-hole
(114.3×76.2mm), Tj=150°C
-2-
NJG1698K84
I
ELECTRICAL CHARACTERISTICS1 (DC CHARACTERISTICS)
(General conditions: T
a
=+25°C, V
DD
=2.7V, V
CTL(L)
=0V, V
CTL(H)
=1.8V, with application circuit)
PARAMETERS
Supply Voltage
Operating Current
Control Voltage (LOW)
Control Voltage (HIGH)
Control Current
SYMBOL
V
DD
I
DD
V
CTL(L)
V
CTL(H)
I
CTL
CONDITIONS
VDD terminal
MIN
1.5
-
TYP
2.7
20
0
1.8
5
MAX
4.5
40
0.45
4.5
10
UNITS
V
µA
V
V
µA
VCTL terminal
VCTL terminal
V
CTL(H)
=1.8V
0
1.35
-
I
ELECTRICAL CHARACTERISTICS2 (RF CHARACTERISTICS)
(General conditions: T
a
=+25°C, Z
s
=Z
l
=50
Ω
, V
DD
=2.7V, V
CTL(L)
=0V, V
CTL(H)
=1.8V, with application circuit)
PARAMETERS
Insertion Loss 1
Insertion Loss 2
Insertion Loss 3
Insertion Loss 4
Isolation 1
Isolation 2
Isolation 3
Isolation 4
Input power at 0.2dB
Compression Point
VSWR
Switching time
SYMBOL
LOSS1
LOSS2
LOSS3
LOSS4
ISL1
ISL2
ISL3
ISL4
P
-0.2dB
VSWR
T
SW
CONDITIONS
f=0.5GHz, P
IN
=0dBm
f=1.0GHz, P
IN
=0dBm
f=2.0GHz, P
IN
=0dBm
f=2.7GHz, P
IN
=0dBm
PC-P1, P2, P3
f=0.5GHz, P
IN
=0dBm
PC-P1, P2, P3
f=1.0GHz, P
IN
=0dBm
PC-P1, P2, P3
f=2.0GHz, P
IN
=0dBm
PC-P1, P2, P3
f=2.7GHz, P
IN
=0dBm
f=2.0GHz
f=2.0GHz, On port
50% V
CTL
to 10/90% RF
MIN
-
-
-
-
53
48
47
40
19
-
-
TYP
0.55
0.50
0.55
0.60
56
51
50
43
23
1.3
2
MAX
0.85
0.75
0.80
0.85
-
-
-
-
-
1.5
5
UNITS
dB
dB
dB
dB
dB
dB
dB
dB
dBm
-
µs
-3-
NJG1698K84
I
TERMINAL INFORMATION
No.
SYMBOL
DESCRIPTION
RF input/output port. No DC blocking capacitor is required for this port
because of internal capacitor.
Ground terminal. Please connect this terminal with ground plane as close as
possible for excellent RF performance.
Positive voltage supply terminal. The positive voltage (+1.5 to +4.5V) has to
be supplied. Please connect a bypass capacitor with GND terminal for
excellent RF performance.
RF input / output port. External capacitor is required to block the DC bias
voltage of internal circuit.
1
PC
2
GND
3
VDD
4
P1
5
GND
Ground terminal. Please connect this terminal with ground plane as close as
possible for excellent RF performance.
RF input / output port. External capacitor is required to block the DC bias
voltage of internal circuit.
6
P2
7
VCTL1
8
VCTL2
Control signal input terminal. This terminal is set to High-Level (+1.35 to
+4.5V) or Low-Level (0 to +0.45V). Please connect a bypass capacitor with
GND terminal for excellent RF performance.
Control signal input terminal. This terminal is set to High-Level (+1.35 to
+4.5V) or Low-Level (0 to +0.45V). Please connect a bypass capacitor with
GND terminal for excellent RF performance.
RF input / output port. External capacitor is required to block the DC bias
voltage of internal circuit.
9
P3
10
GND
Ground terminal. Please connect this terminal with ground plane as close as
possible for excellent RF performance.
-4-
NJG1698K84
I
ELECTRICAL CHARACTERISTICS
(With Application circuit, Loss of external circuit are excluded)
LOSS, ISL vs Frequency
(PC-P1 ON, V =2.7V, V
0.0
-0.2
DD
CTL
LOSS, ISL vs Frequency
(PC-P2 ON, V =2.7V, V
0
-5
-10
-15
0.0
-0.2
DD
CTL
=1.8/0V)
=1.8/0V)
0
-5
-10
-15
PC-P1 Insertion Loss (dB)
-0.4
-0.6
-0.8
-1.0
-1.2
-1.4
-1.6
-1.8
-2.0
-2.2
-2.4
0.0
0.5
1.0
1.5
2.0
2.5
PC-P2 ISL
PC-P3 ISL
PC-P1 LOSS
PC-P2 Insertion Loss (dB)
-0.4
-0.6
-0.8
-1.0
-1.2
-1.4
-1.6
-1.8
-2.0
-2.2
-2.4
0.0
0.5
1.0
1.5
2.0
2.5
PC-P1 ISL
PC-P3 ISL
PC-P2 LOSS
Isolation (dB)
-20
-25
-30
-35
-40
-45
-50
-55
-60
3.0
-20
-25
-30
-35
-40
-45
-50
-55
-60
3.0
Frequency (GHz)
Frequency (GHz)
LOSS, ISL vs Frequency
(PC-P3 ON, V =2.7V, V
0.0
-0.2
DD
CTL
VSWR vs Frequency
0
-5
-10
-15
(PC-P1 ON, V =2.7V, V
2.0
1.9
1.8
DD
CTL
=1.8/0V)
=1.8/0V)
P1 Port
PC Port
PC-P3 Insertion Loss (dB)
-0.4
-0.6
-0.8
-1.0
-1.2
-1.4
-1.6
-1.8
-2.0
-2.2
-2.4
0.0
0.5
1.0
1.5
2.0
2.5
PC-P1 ISL
PC-P2 ISL
PC-P3 LOSS
-20
-25
-30
-35
-40
-45
-50
-55
-60
3.0
Isolation (dB)
1.7
VSWR
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
VSWR vs Frequency
(PC-P2 ON, V =2.7V, V
2.0
1.9
1.8
1.7
DD
CTL
VSWR vs Frequency
(PC-P3 ON, V =2.7V, V
2.0
P2 Port
PC Port
1.9
1.8
1.7
DD
CTL
=1.8/0V)
=1.8/0V)
P3 Port
PC Port
VSWR
1.5
1.4
1.3
1.2
1.1
1.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
VSWR
1.6
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Frequency (GHz)
Frequency (GHz)
-5-
Isolation (dB)
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