- 1 -
NJG1666MD7
Ver.2013-05-07
HIGH ISOLATION SPDT SWITCH GaAs MMIC
GENERAL DESCRIPTION PACKAGE OUTLINE
The NJG1666MD7 is a GaAs SPDT switch designed for Set-top boxes, TV
tuners, CATV tuners, and sub-microwave applications. The NJG1666MD7
features high isolation, low insertion loss and covering a broad frequency
range up to 3GHz. The NJG1666MD7operates single bit control switching
by control voltage from 1.3V to 4.5V, and includes ESD protection circuits
for good ESD tolerance. The NJG1666MD7 is available in a very small,
lead-free, halogen-free, 1.6mm x 1.6mm x 0.397 mm, 14-pin EQFN14-D7
package.
APPLICATIONS
Terrestrial and Satellite applications
Set-top box, TV tuner, CATV tuner, Digital TV and Cable TV applications
FEATURES
Low operating voltage
V
DD
=+2.0~+4.5V
Low control voltage
V
CTL(H)
=
+1.3V min
Low current consumption 30µ
A typ.
High isolation 70dB typ. @f=0.25GHz
60dB typ. @f=1.0GHz
60dB typ. @f=2.2GHz
Low insertion loss 0.40dB typ. @f=0.25GHz
0.45dB typ. @f=1.0GHz
0.50dB typ. @f=2.2GHz
High ESD tolerance On-chip ESD protection circuit
Ultra- small and ultra-thin package EQFN14-D7 (package size: 1.6mm x 1.6mm x 0.397mm typ.)
Lead and halogen-free
PIN CONFIGURATION
Pin Connection
1. NC(GND) 8. NC(GND)
2. P2 9. GND
3. GND 10. P1
4. NC(GND) 11. NC(GND)
5. GND 12. VDD
6. PC 13. GND
7. GND 14. CTL
TRUTH TABLE
“H”=V
CTL(H),
“L”=V
CTL(L)
CTL PATH
H PC-P1
L PC-P2
NOTE: The information on this datasheet is subject to change without notice
(Top view)
NJG1666MD7
11
10
9
8
7
1
2
3
465
121314
- 2 -
NJG1666MD7
ABSOLUTE MAXIMUM RATINGS
(T
a
=25°C, Z
s
=Z
l
=50)
PARAMETER SYMBOL
CONDITIONS RATINGS UNITS
RF Input power P
IN
V
DD
=3.0V
28
dBm
Supply voltage V
DD
VDD terminal
5.0
V
Control voltage V
CTL
CTL terminal
5.0
V
Power dissipation P
D
Four-layer FR4 PCB with through-hole
(74.2mmx74.2mm), T
j
=150°C
1300
mW
Operating temp. T
opr
-40~+85
°C
Storage temp. T
stg
-55~+150
°C
ELECTRICAL CHARACTERISTICS 1 (DC)
(General conditions: V
DD
=3.0V, V
CTL (L)
=0V, V
CTL (H)
=3.0V, Z
s
=Z
l
=50, T
a
=+25°C, with application circuit)
PARAMETER SYMBOL
CONDITIONS MIN TYP MAX
UNITS
Supply voltage V
DD
2.0 3.0 4.5 V
Operating current I
DD
- 30 60 µA
Control voltage (L) V
CTL(L)
0 - 0.4 V
Control voltage (H)
V
CTL(H)
1.3 3.0 4.5 V
Control current I
CTL
- 15 30 µA
ELECTRICAL CHARACTERISTICS 2 (RF)
(General conditions: V
DD
=3.0V, V
CTL (L)
=0V, V
CTL (H)
=3.0V, Z
s
=Z
l
=50, T
a
=+25°C, with application circuit)
PARAMETER SYMBOL
CONDITIONS MIN TYP MAX
UNITS
Insertion loss 1 LOSS1 f=250MHz, P
IN
=0dBm - 0.40 0.60 dB
Insertion loss 2 LOSS2 f=1000MHz, P
IN
=0dBm - 0.45 0.65 dB
Insertion loss 3 LOSS3 f=2200MHz, P
IN
=0dBm - 0.50 0.70 dB
Isolation 1 ISL1 f=250MHz, P
IN
=0dBm 65 70 - dB
Isolation 2 ISL2 f=1000MHz, P
IN
=0dBm 55 60 - dB
Isolation 3 ISL3 f=2200MHz, P
IN
=0dBm 55 60 - dB
Input power at 1dB
compression point P
-1dB
f=2200MHz 23 27 - dBm
VSWR VSWR f=2200MHz, ON state - 1.3 1.5
Switching time T
SW
50% V
CTL
to 10%/90% RF - 1 5 µs
- 3 -
NJG1666MD7
TERMINAL INFORMATION
No. SYMBOL DESCRIPTION
2 P2
This port is connected to PC port by applying the control voltage 0~+0.4
V(V
CTL(L)
) to 14th pin. An external capacitor is required to block the DC
bias voltage of internal circuit.
6 PC
Common RF port. This PC port is connected to P1 or P2 by logical
control voltage of 14th pin. In order to block DC bias voltage of internal
circuit, an external capacitor is required.
10 P1
This port is connected to PC port by applying control voltage of
+1.3~+4.5 V (V
CTL(H)
) to 14th pin. An external capacitor is required to
block the DC bias voltage of internal circuit.
12 VDD
A supply voltage terminal (+2.0~+4.5 V). Place a bypass capacitor
between this terminal and ground plane for avoiding RF noise from
outside.
14 CTL Control signal input terminal. This terminal is set to High-Level
(+1.3~+4.5 V) or Low-Level (0~+0.4 V).
1,4,8,11 NC
(GND)
No connected terminal. This terminal is not connected with internal
circuit. Connect to the PCB ground plane.
3,5,7,
9,13 GND Ground terminal. Connect this terminal with ground plane as close as
possible for excellent RF performance.
- 4 -
NJG1666MD7
ELECTRICAL CHARACTERISTICS
(
(With Application circuit, Loss of external circuit are excluded)
1.0
1.5
2.0
2.5
3.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
P1 Port (PC-P1 ON)
P2 Port (PC-P2 ON)
VSWR vs. Frequency
(V
DD
=3V, V
CTL
=0/3V)
VSWR
Frequency (GHz)
Voltage (arb. unit)
Time (1µ
µµ
µs/div)
Switching Time
(PC-P1/P2, V
DD
=3.0V, V
CTL
=0/3.0V)
1.08 µ
µµ
µs0.19 µ
µµ
µs
CTL
P1
-2.0
-1.5
-1.0
-0.5
0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PC-P1
PC-P2
Insertion Loss (dB)
Frequency (GHz)
Insertion Loss vs. Frequency
(V
DD
=3V, V
CTL
=0/3V)
-80
-70
-60
-50
-40
-30
-20
-10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
PC-P1 (PC-P2 ON))
PC-P2 (PC-P1 ON))
Isolation (dB)
Frequency (GHz)
Isolation vs. Frequency
(V
DD
=3V, V
CTL
=0/3V)
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
-70
-60
-50
-40
-30
-20
-10
0
10 12 14 16 18 20 22 24 26 28 30
V
DD
=2.0V
V
DD
=2.5V
V
DD
=3.0V
V
DD
=4.0V
V
DD
=4.5V
V
DD
=2.0V
V
DD
=2.5V
V
DD
=3.0V
V
DD
=4.0V
V
DD
=4.5V
Loss, ISL vs. Input Power
(PC-P1 ON, f=2.2GHz, V
CTL
=3V)
Insertion Loss (dB)
Input Power (dBm)
PC-P2 Isolation (dB)
10
12
14
16
18
20
22
24
26
28
30
10
15
20
25
30
35
40
45
50
55
60
10 12 14 16 18 20 22 24 26 28 30
V
DD
=2.0V
V
DD
=2.5V
V
DD
=3.0V
V
DD
=4.0V
V
DD
=4.5V
V
DD
=2.0V
V
DD
=2.5V
V
DD
=3.0V
V
DD
=4.0V
V
DD
=4.5V
Output Power, I
DD
vs. Input Power
(PC-P1 ON, f=2.2GHz, V
CTL
=3V)
Output Power (dBm)
Input Power (dBm)
Operation Current IDD(µ
µ
µ
µA)
- 5 -
NJG1666MD7
ELECTRICAL CHARACTERISTICS (With Application circuit, Loss of external circuit are excluded)
-80
-75
-70
-65
-60
-55
-50
-45
-40
-35
-30
-50 -25 0 25 50 75 100
f=250MHz
f=1000MHz
f=2200MHz
PC-P2 Isolation (dB)
Ambient Temperature (oC)
ISL vs. Ambient Temperature
(PC-P1 ON, V
DD
=3V, V
CTL
=3V)
-1.0
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0.0
-50 -25 0 25 50 75 100
f=250MHz
f=1000MHz
f=2200MHz
Insertion Loss (dB)
Ambient Temperature (oC)
Loss vs. Ambient Temperature
(PC-P1 ON, V
DD
=3V, V
CTL
=3V)
20
22
24
26
28
30
32
34
36
38
40
-50 -25 0 25 50 75 100
V
DD
=2.0V
V
DD
=2.5V
V
DD
=3.0V
V
DD
=4.0V
V
DD
=4.5V
P
-1dB
vs. Ambient Temperature
(PC-P1 ON, f=2.2GHz, V
CTL(H)
=3V)
P
-1dB
(dBm)
Ambient Temperature (
o
C)
Max ratings
0
1
2
3
4
5
-50 -25 0 25 50 75 100
V
DD
=2.0V
V
DD
=2.5V
V
DD
=3.0V
V
DD
=4.0V
V
DD
=4.5V
T
SW
vs. Ambient Temperature
(PC-P1/P2, V
CTL(H)
=3V)
Switching Time (µ
µ
µ
µs)
Ambient Temperature (
o
C)
0
10
20
30
40
50
-50 -25 0 25 50 75 100
V
DD
=2.0V
V
DD
=2.5V
V
DD
=3.0V
V
DD
=4.0V
V
DD
=4.5V
Operation current I
DD
(µ
µ
µ
µA)
Ambient Temperature (
o
C)
I
DD
vs. Ambient Temperature
(V
CTL
=0V)
0
10
20
30
40
50
-50 -25 0 25 50 75 100
V
CTL
=1.3V
V
CTL
=2.0V
V
CTL
=3.0V
V
CTL
=4.0V
V
CTL
=4.5V
Control Current I
CTL
(µ
µ
µ
µA)
Ambient Temperature (
o
C)
I
CTL
vs. Ambient Temperature
(V
DD
=0V)
- 6 -
NJG1666MD7
APPLICATION CIRCUIT
(TOP VIEW)
PC
C4
C3
P1
C1
P2
V
DD
C2
CTL
11
10
9
8
7
1
2
3
465
121314
PARTS LIST
Parts ID Value Notes
C1~C4 1000pF Murata MFG
(GRM15)
TEST PCB LAYOUT
(TOP VIEW)
PRECAUTIONS
[1] The DC blocking capacitors have to be placed at RF terminal of PC, P1 and P2.
[2] For good RF performance, the ground terminals must be placed possibly close to ground plane
of substrate, and through holes for GND should be placed near by the pin connection.
[3] Bypass capacitor (C4) should be placed close to terminal of VDD to reduce stripline influence of
RF characteristics.
PCB SIZE = 19.4mm x 15.0mm
PCB: FR4, t = 0.2mm
CAPACITOR: SIZE 1005
STRIP LINE WIDTH = 0.4mm(Z
0
=50)
PCB LOSS
FREQ. (MHz)
PCB LOSS (dB)
250 0.11
1000 0.24
2200 0.40
*) Including PCB, Connector and
DC Blocking Capacitor Losses
PC
P1
P2
C
1
C2
C3
C4
1pin mark
GND
CTL
VDD
GND
- 7 -
NJG1666MD7
PACKAGE OUTLINE (EQFN14-D7)
Units : mm
Board : Cu
Terminal treat : SnBi
Molding material : Epoxy resin
Weight : 3.3mg
Caution
s
on using
th
is
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.
This product may be damaged with electric static discharge (ESD) or spike voltage. Please hand
le
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.