- 1 -
Ver.2014-8-26
NJG1698K84
High Isolation SP3T SWITCH
GENERAL DESCRIPTION
PACKAGE OUTLINE
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.
APPLICATIONS
Multi-mode 2G/3G and LTE application receive system
Pre PA switching, reception bands switching applications
General purpose switching applications
FEATURES
Low voltage logic control V
CTL(H)
=1.8V typ.
Low voltage operation V
DD
=2.7V typ.
High isolation 51dB typ. @f=1.0GHz, P
IN
=0dBm
50dB typ. @f=2.0GHz, P
IN
=0dBm
43dB typ. @f=2.7GHz, P
IN
=0dBm
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
Small & thin package QFN10-84 Package (Package size: 1.55 x 1.15 x 0.37mm typ.)
RoHS compliant and Halogen Free, MSL1
PIN CONFIGURATION
TRUTH TABLE
“H”=V
CTL(H),
“L”=V
CTL(L)
VCTL1 VCTL2 PATH
H L PC-P1
L H PC-P2
H H PC-P3
(TOP VIEW)
NOTE: Please note that any information on this datasheet will be subject to change.
Pin connection
1. PC
2. GND
3. VDD
4. P1
5. GND
6. P2
7. VCTL1
8. VCTL2
9. P3
10. GND
NJG1698K84
4
5
8
9
6
7
10
1
2
3
DECODER
P3
GND
PC
P2
GND
VCTL1
VDD
P1
GND
VCTL2
NJG1698K84
- 2 -
ABSOLUTE MAXIMUM RATINGS
(T
a
=+25°C, Z
s
=Z
l
=50Ω)
PARAMETER SYMBOL
CONDITIONS RATINGS UNITS
RF Input Power P
IN
V
DD
=2.7V 28 dBm
Supply Voltage V
DD
VDD terminal 5.0 V
Control Voltage V
CTL
VCTL terminal 5.0 V
Power Dissipation P
D
Four-layer FR4 PCB without through-
hole
(114.3×76.2mm), Tj=150°C 270 mW
Operating
Temperature T
opr
-40 to +90 °C
Storage Temperature T
stg
-55 to +150
°C
NJG1698K84
- 3 -
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 SYMBOL
CONDITIONS MIN TYP MAX
UNITS
Supply Voltage V
DD
VDD terminal 1.5 2.7 4.5 V
Operating Current I
DD
- 20 40 µA
Control Voltage (LOW) V
CTL(L)
VCTL terminal 0 0 0.45 V
Control Voltage (HIGH)
V
CTL(H)
VCTL terminal 1.35 1.8 4.5 V
Control Current I
CTL
V
CTL(H)
=1.8V - 5 10 µA
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 SYMBOL
CONDITIONS MIN TYP MAX
UNITS
Insertion Loss 1 LOSS1 f=0.5GHz, P
IN
=0dBm - 0.55 0.85 dB
Insertion Loss 2 LOSS2 f=1.0GHz, P
IN
=0dBm - 0.50 0.75 dB
Insertion Loss 3 LOSS3 f=2.0GHz, P
IN
=0dBm - 0.55 0.80 dB
Insertion Loss 4 LOSS4 f=2.7GHz, P
IN
=0dBm - 0.60 0.85 dB
Isolation 1 ISL1 PC-P1, P2, P3
f=0.5GHz, P
IN
=0dBm 53 56 - dB
Isolation 2 ISL2 PC-P1, P2, P3
f=1.0GHz, P
IN
=0dBm 48 51 - dB
Isolation 3 ISL3 PC-P1, P2, P3
f=2.0GHz, P
IN
=0dBm 47 50 - dB
Isolation 4 ISL4 PC-P1, P2, P3
f=2.7GHz, P
IN
=0dBm 40 43 - dB
Input power at 0.2dB
Compression Point P
-0.2dB
f=2.0GHz 19 23 - dBm
VSWR VSWR f=2.0GHz, On port - 1.3 1.5 -
Switching time T
SW
50% V
CTL
to 10/90% RF - 2 5 µs
NJG1698K84
- 4 -
TERMINAL INFORMATION
No. SYMBOL DESCRIPTION
1 PC RF input/output port. No DC blocking capacitor is required for this port
because of internal capacitor.
2 GND Ground terminal. Please connect this terminal with ground plane as close as
possible for excellent RF performance.
3 VDD
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.
4 P1
RF input / output port. External capacitor is required to block the DC bias
voltage of internal circuit.
5 GND Ground terminal. Please connect this terminal with ground plane as close as
possible for excellent RF performance.
6 P2
RF input / output port. External capacitor is required to block the DC bias
voltage of internal circuit.
7 VCTL1
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.
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.
9 P3
RF input / output port. External capacitor is required to block the DC bias
voltage of internal circuit.
10 GND Ground terminal. Please connect this terminal with ground plane as close as
possible for excellent RF performance.
NJG1698K84
- 5 -
ELECTRICAL CHARACTERISTICS (With Application circuit, Loss of external circuit are excluded)
-2.4
-2.2
-2.0
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
-60
-55
-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
PC-P1 LOSS
PC-P2 ISL
PC-P3 ISL
PC-P1 Insertion Loss (dB)
Isolation (dB)
Frequency (GHz)
LOSS, ISL vs Frequency
(PC-P1 ON, V
DD
=2.7V, V
CTL
=1.8/0V)
-2.4
-2.2
-2.0
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
-60
-55
-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
PC-P3 LOSS
PC-P1 ISL
PC-P2 ISL
PC-P3 Insertion Loss (dB)
Isolation (dB)
Frequency (GHz)
LOSS, ISL vs Frequency
(PC-P3 ON, V
DD
=2.7V, V
CTL
=1.8/0V)
-2.4
-2.2
-2.0
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
-60
-55
-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
PC-P2 LOSS
PC-P1 ISL
PC-P3 ISL
PC-P2 Insertion Loss (dB)
Isolation (dB)
Frequency (GHz)
LOSS, ISL vs Frequency
(PC-P2 ON, V
DD
=2.7V, V
CTL
=1.8/0V)
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
P2 Port
PC Port
VSWR
Frequency (GHz)
VSWR vs Frequency
(PC-P2 ON, V
DD
=2.7V, V
CTL
=1.8/0V)
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
P1 Port
PC Port
VSWR
Frequency (GHz)
VSWR vs Frequency
(PC-P1 ON, V
DD
=2.7V, V
CTL
=1.8/0V)
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
P3 Port
PC Port
VSWR
Frequency (GHz)
VSWR vs Frequency
(PC-P3 ON, V
DD
=2.7V, V
CTL
=1.8/0V)
NJG1698K84
- 6 -
ELECTRICAL CHARACTERISTICS (With Application circuit, Loss of external circuit are excluded)
8
10
12
14
16
18
20
22
24
26
28
10
15
20
25
30
35
40
45
50
55
60
10 12 14 16 18 20 22 24 26 28
V
CTL(H)
=1.8V_P
OUT
V
CTL(H)
=2.7V_P
OUT
V
CTL(H)
=3.0V_P
OUT
V
CTL(H)
=4.0V_P
OUT
V
CTL(H)
=5.0V_P
OUT
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
Input Power (dBm)
Output Power (dBm)
Output Power, I
DD
vs Input Power
(PC-P1 ON, V
CTL
=1.8/0V, f=1.0GHz)
Operating Current I
DD
(µ
µ
µ
µA)
8
10
12
14
16
18
20
22
24
26
28
10
15
20
25
30
35
40
45
50
55
60
10 12 14 16 18 20 22 24 26 28
V
CTL(H)
=1.8V_P
OUT
V
CTL(H)
=2.7V_P
OUT
V
CTL(H)
=3.0V_P
OUT
V
CTL(H)
=4.0V_P
OUT
V
CTL(H)
=5.0V_P
OUT
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
Input Power (dBm)
Output Power (dBm)
Output Power, I
DD
vs Input Power
(PC-P1 ON, V
CTL
=1.8/0V, f=0.5GHz)
Operating Current I
DD
(µ
µ
µ
µA)
8
10
12
14
16
18
20
22
24
26
28
10
15
20
25
30
35
40
45
50
55
60
10 12 14 16 18 20 22 24 26 28
V
CTL(H)
=1.8V_P
OUT
V
CTL(H)
=2.7V_P
OUT
V
CTL(H)
=3.0V_P
OUT
V
CTL(H)
=4.0V_P
OUT
V
CTL(H)
=5.0V_P
OUT
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
Input Power (dBm)
Output Power (dBm)
Output Power, I
DD
vs Input Power
(PC-P1 ON, V
CTL
=1.8/0V, f=2.0GHz)
Operating Current I
DD
(µ
µ
µ
µA)
8
10
12
14
16
18
20
22
24
26
28
10
15
20
25
30
35
40
45
50
55
60
10 12 14 16 18 20 22 24 26 28
V
CTL(H)
=1.8V_P
OUT
V
CTL(H)
=2.7V_P
OUT
V
CTL(H)
=3.0V_P
OUT
V
CTL(H)
=4.0V_P
OUT
V
CTL(H)
=5.0V_P
OUT
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
Input Power (dBm)
Output Power (dBm)
Output Power, I
DD
vs Input Power
(PC-P1 ON, V
CTL
=1.8/0V, f=2.7GHz)
Operating Current I
DD
(µ
µ
µ
µA)
-5.0
-4.5
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
10 12 14 16 18 20 22 24 26 28
V
CTL(H)
=1.8V_Loss
V
CTL(H)
=2.7V_Loss
V
CTL(H)
=3.0V_Loss
V
CTL(H)
=4.0V_Loss
V
CTL(H)
=5.0V_Loss
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
Input Power (dBm)
PC-P1 Insertion Loss (dB)
PC-P2 Isolation (dB)
Loss, ISL vs Input Power
(PC-P1 ON, V
CTL
=1.8/0V, f=1.0GHz)
-5.0
-4.5
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
10 12 14 16 18 20 22 24 26 28
V
CTL(H)
=1.8V_Loss
V
CTL(H)
=2.7V_Loss
V
CTL(H)
=3.0V_Loss
V
CTL(H)
=4.0V_Loss
V
CTL(H)
=5.0V_Loss
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
Input Power (dBm)
PC-P1 Insertion Loss (dB)
PC-P2 Isolation (dB)
Loss, ISL vs Input Power
(PC-P1 ON, V
CTL
=1.8/0V, f=0.5GHz)
NJG1698K84
- 7 -
ELECTRICAL CHARACTERISTICS (With Application circuit, Loss of external circuit are excluded)
-5.0
-4.5
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
10 12 14 16 18 20 22 24 26 28
V
CTL(H)
=1.8V_Loss
V
CTL(H)
=2.7V_Loss
V
CTL(H)
=3.0V_Loss
V
CTL(H)
=4.0V_Loss
V
CTL(H)
=5.0V_Loss
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
Input Power (dBm)
PC-P1 Insertion Loss (dB)
PC-P2 Isolation (dB)
Loss, ISL vs Input Power
(PC-P1 ON, V
CTL
=1.8/0V, f=2.0GHz)
-5.0
-4.5
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
10 12 14 16 18 20 22 24 26 28
V
CTL(H)
=1.8V_Loss
V
CTL(H)
=2.7V_Loss
V
CTL(H)
=3.0V_Loss
V
CTL(H)
=4.0V_Loss
V
CTL(H)
=5.0V_Loss
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
Input Power (dBm)
PC-P1 Insertion Loss (dB)
PC-P2 Isolation (dB)
Loss, ISL vs Input Power
(PC-P1 ON, V
CTL
=1.8/0V, f=2.7GHz)
-2.4
-2.2
-2.0
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
-50 -25 0 25 50 75 100
V
CTL(H)
=1.8V_L
V
CTL(H)
=2.7V_L
V
CTL(H)
=3.0V_L
V
CTL(H)
=4.0V_L
V
CTL(H)
=5.0V_L
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
PC-P1 Insertion Loss (dB)
PC-P2 Isolation (dB)
Loss, ISL vs Temperature
(PC-P1 ON, V
CTL
=1.8/0V, f=1.0GHz, P
IN
=0dBm)
Ambient Temperature (
o
C)
-2.4
-2.2
-2.0
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
-50 -25 0 25 50 75 100
V
CTL(H)
=1.8V_L
V
CTL(H)
=2.7V_L
V
CTL(H)
=3.0V_L
V
CTL(H)
=4.0V_L
V
CTL(H)
=5.0V_L
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
PC-P1 Insertion Loss (dB)
PC-P2 Isolation (dB)
Loss, ISL vs Temperature
(PC-P1 ON, V
CTL
=1.8/0V, f=0.5GHz, P
IN
=0dBm)
Ambient Temperature (
o
C)
-2.4
-2.2
-2.0
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
-50 -25 0 25 50 75 100
V
CTL(H)
=1.8V_L
V
CTL(H)
=2.7V_L
V
CTL(H)
=3.0V_L
V
CTL(H)
=4.0V_L
V
CTL(H)
=5.0V_L
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
PC-P1 Insertion Loss (dB)
PC-P2 Isolation (dB)
Loss, ISL vs Temperature
(PC-P1 ON, V
CTL
=1.8/0V, f=2.0GHz, P
IN
=0dBm)
Ambient Temperature (
o
C)
-2.4
-2.2
-2.0
-1.8
-1.6
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
-50 -25 0 25 50 75 100
V
CTL(H)
=1.8V_L
V
CTL(H)
=2.7V_L
V
CTL(H)
=3.0V_L
V
CTL(H)
=4.0V_L
V
CTL(H)
=5.0V_L
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
PC-P1 Insertion Loss (dB)
PC-P2 Isolation (dB)
Loss, ISL vs Temperature
(PC-P1 ON, V
CTL
=1.8/0V, f=2.7GHz, P
IN
=0dBm)
Ambient Temperature (
o
C)
NJG1698K84
- 8 -
ELECTRICAL CHARACTERISTICS (With Application circuit, Loss of external circuit are excluded)
Maximum Mesurement
0
4
8
12
16
20
24
28
32
-50 -25 0 25 50 75 100
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
P
-0.2dB
(dB)
P
-0.2dB
vs Temperature
(PC-P1 ON, V
CTL
=1.8/0V, f=2.0GHz)
Ambient Temperature (
o
C)
0
5
10
15
20
25
30
35
40
-50 -25 0 25 50 75 100
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
Operating Current (µ
µ
µ
µA)
Ambient Temperature (
o
C)
Operating Current vs Temperature
(PC-P1 ON, V
CTL
=1.8/0V)
0
1
2
3
4
5
6
7
8
9
10
-50 -25 0 25 50 75 100
V
DD
=1.5V
V
DD
=2.0V
V
DD
=2.7V
V
DD
=3.5V
V
DD
=4.5V
Switching Time (µ
µ
µ
µs)
Switching Time(rise) vs Temperature
(PC-P1/P2 path, P1 port, V
CTL
=1.8/0V)
Ambient Temperature (
o
C)
NJG1698K84
- 9 -
APPLICATION CIRCUIT
<Top View>
Note:
The DC blocking capacitor is not necessary at PC Port because of the integrated DC blocking capacitor.
PARTS LIST
Part ID
Value
Notes
C1 to C3
56pF
MURATA (GRM15)
C4
1000pF
MURATA (GRM15)
C5, C6
10pF
MURATA (GRM15)
4
5
8
9
6
7
10
1
2
3
DECODER
P1
P2
V
DD
VCTL1
VCTL2
P3
PC
C1
56pF
C2
56pF
C3
56pF
C4
1000pF
C5
10pF C6
10pF
NJG1698K84
- 10 -
APPLIED CIRCUIT BOARD EXAMPLES
(TOP VIEW)
<PCB LAYOUT GUIDELINE>
(TOP VIEW)
To achieve the isolation specified in the datasheet, it is needed that the ground plane as shown above
figure.
PRECAUTIONS
[1] The DC current at RF ports must be equal to zero, which can be achieved with DC blocking capacitors (C1, C2,
and C3). (However, in case there is no possibility that DC current flows, the DC blocking capacitors are
unnecessary, i.e. the RF signals are fed by SAW filters that block DC current by nature, etc.)
[2] To reduce stripline influence on RF characteristics, please locate the bypass capacitor C4, C5, and C6 close to
VDD and VCTL terminal.
[3] For good isolation, the GND terminals must be connected to the PCB ground plane of substrate, and the
through-holes connecting the backside ground plane should be placed near by the pin connection.
VCTL1
VCTL2
PC
P3
P2
P1
C1
C2
C3
C4
VDD
GND
GND
C5
C6
1pin mark
PCB: FR-4, t=0.2mm
Capacitor Size: 1005 (1.0 x 0.5 mm)
Strip Line Width: 0.4mm
PCB Size: 25.8 x 25.8mm
Through Hole Diameter: 0.2mm
Loss of PCB, capacitors and connectors
Frequency (GHz)
Loss (dB)
0.5 0.17
1.0 0.26
2.0 0.41
2.7 0.53
1
2
3
4
5
6
7
8
9
10
Through-hole
Diameter: φ= 0.2mm
Package Terminal
PCB pattern
Package Outline
NJG1698K84
- 11 -
■ RECOMMENDED FOOTPRINT PATTERN (QFN10-84)
: Land
: Mask (Open area) *Metal mask thickness : 100
µ
m
: Resist(Open area)
PKG : 1.15mm x 1.55mm
Pin pitch : 0.4mm
NJG1698K84
- 12 -
PACKAGE OUTLINE (QFN10-84)
TOP VIEW
SIDE VIEW
BOTTOM VIEW
Caution
s
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
wast
e
th
is
product, please obey the relati
ng
law
of
your
country.
This product may be damaged with electric static discharge (ESD) or spike voltage. Please handle
with care to avoid these damages
.
[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.
Unit : mm
Terminal treat : Au
Terminal core : Ni
Molding material : Epoxy resin
Weight : 1.5mg
