JRC NJG1505R Datasheet

NJG1505R

SPDT SWITCH GaAs MMIC

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GENERAL DESCRIPTION

NJG1505R is a GaAs SPDT switch MMIC which features
high isolation and low loss and ideally suitable for switching
transmit/receiving signal of synthesizer.

This switch is operated in the wide frequency range from
1MHz to 3GHz at low voltage operation from 2.5V with very
small VSP8 package.

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FEATURES

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Single and low control voltage +2.5~+5.5V

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High isolation 47dB typ. @f=0.05~1GHz, Pin=0dBm

37dB typ. @f=1GHz~2GHz, P

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Low insertion loss 0.6dB typ. @f=1GHz, Pin=0dBm

0.8dB typ. @f=2GHz, P

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Low Control current 2uA typ. @f=0.05~2.5GHz, Pin=10dBm

l

Package VSP8 (Mount Size: 4.0x2.9x1.2mm)

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PIN CONFIGURATION

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TRUTH TABLE

R TYPE

(Top View)

1

2

3

8

7

6

4 5

“H”=V

V

CTR1

V

CTR2

PC-P1 OFF ON - -
PC-P2 ON OFF - -

H L L H

L H L H

CTR (H)

, “L”=V

CTR (L)

Pin Connection

1.V

2.PC

3.GND

4.V

5.P1

6.GND

7.GND

8.P2

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PACKAGE OUTLINE

=0dBm

in

CTR2

CTR1

NJG1505R

=0dBm

in

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NJG1505R

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ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL RATINGS UNITS

(Ta=25°C)

Input power P
Control voltage V

CTR

Power dissipation P
Operating temp. T
Storage temp. T

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ELECTRICAL CHARACTERISTICS 1

opr

stg

(TEST CIRCUIT 1: V

in

D

27 dBm

6 V

320 mW

-30~+85 °C

-40~+150 °C

CTR (L)

=0V, V

=2.7V, Zs=Zo=50ohm, Ta=25°C)

CTR (H)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Control voltage (L) V
Control voltage (H) V
Control current I

CTR (L)

CTR (H)

CTR

f=0.05~2.5GHz, Pin=10dBm -0.2 0 0.2 V
f=0.05~2.5GHz, Pin=10dBm 2.5 2.7 5.5 V

f=0.05~2.5GHz, Pin=10dBm - 2.0 4.0 uA
Isolation 1 ISL1 f=0.05~1GHz, Pin=0dBm 40 47 - dB
Isolation 2 ISL2 f=1GHz~2GHz, Pin=0dBm 33 37 - dB
Insertion loss 1 LOSS1 f=1GHz, Pin=0dBm - 0.6 1.0 dB
Insertion loss 2 LOSS2 f=2GHz, Pin=0dBm - 0.8 1.2 dB

Pin at 1dB
compression point

P

-1dB

f=2GHz 19 22 - dBm
VSWR VSWR f=0.05~2.5GHz, ON STATE - 1.5 1.8

Switching time T

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ELECTRICAL CHARACTERISTICS 2

SW

(TEST CIRCUIT 2: V

f=0.05~2.5GHz - 8 - ns

CTR (L)

=0V, V

=2.7V, Zs=Zo=50ohm, Ta=25°C)

CTR (H)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Isolation 3 ISL3 f=1~100MHz, Pin=0dBm - 55 - dB
Insertion loss 3 LOSS3 f=1~100MHz, Pin=0dBm - 0.5 - dB

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NJG1505R

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TYPICAL CHARACTERISTICS

PC-P1 Isolation

(V

=0V/2.7V)

0

-10

-20

-30

-40

-50

Isolation:ISL (dB)

-60

-70
0 500 1000 1500 2000 2500 3000

CTR

frequency (MHz)

PC-P2 Isolation

(V

=0V/2.7V)

0

-10

-20

-30

-40

-50

Isolation:ISL (dB)

-60

-70
0 500 1000 1500 2000 2500 3000

CTR

frequency (MHz)

PC-P1 Insertion Loss

0.1-3GHz

(V

=0V/2.7V)

0

-1

-2

-3

-4

Insertion Loss:LOSS (dB)

-5
0 500 1000 1500 2000 2500 3000

CTR

frequency (MHz)

PC-P2 Insertion Loss

0.1-3GHz

(V

=0V/2.7V)

0

-1

-2

-3

-4

Insertion Loss:LOSS (dB)

-5
0 500 1000 1500 2000 2500 3000

CTR

frequency (MHz)

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NJG1505R

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(V

=0V/2.7V)

TYPICAL CHARACTERISTICS

0

-20

-40

-60

Isolation:ISL (dB)

-80

-100
1

20 40 60 80 100

PC-P1 Insertion Loss

0

PC-P1 Isolation

1-100MHz

(V

=0V/2.7V)

CTR

frequency (MHz)

1-100MHz

(V

=0V/2.7V)

CTR

0

-20

-40

-60

Isolation:ISL (dB)

-80

-100
1

20 40 60 80 100

PC-P2 Insertion Loss

0

PC-P2 Isolation

1-100MHz

(V

=0V/2.7V)

CTR

frequency (MHz)

1-100MHz

CTR

-0.5

-1

-1.5

Insertion Loss:LOSS (dB)

-2
1

20 40 60 80 100

frequency (MHz)

-0.5

-1

-1.5

Insertion Loss:LOSS (dB)

-2
1

20 40 60 80 100

frequency (MHz)

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NJG1505R

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Insertion Loss vs. Input Power

Isolation vs. Input Power

vs. Input Power

(PC-P1) Output Power

vs. Input Power

(PC-P2) Output Power

vs. Input Power

(PC-P1) Control Current

vs. Input Power

(PC-P2) Control Current

TYPICAL CHARACTERISTICS

-0.5

-1

-1.5

-2

-2.5

Insertion Loss:LOSS (dB)

-3

-3.5

-5 0 5 10 15 20 25 30

30

25

(VCTR=0V/2.7V,fin=2GHz)

PC-P1
PC-P2

Input Power (dBm)

(V

=0V/2.7V,fin=2GHz)

CTR

Pout
P-1

(V

=0V/2.7V,fin=2GHz)

-30

-35

Isolation:ISL (dB)

-40

-45

-5 0 5 10 15 20 25 30

30

25

CTR

Input Power (dBm)

(V

=0V/2.7V,fin=2GHz)

CTR

PC-P1
PC-P2

Pout
P-1

P-1(in) = 23.53 dBm

20

Output Power (dBm)

15

10

10 15 20 25 30

Input Power (dBm)

6

5

(uA)

4

CTR

3

2

Control Current:I

1

V

=2.7V

CTR

V

=2.5V

CTR

(fin=2GHz)

P-1(in) = 23.38 dBm

20

15

Output Power (dBm)

10

10 15 20 25 30

6

5

(uA)

CTR

4

3

V

2

Control Current:I

1

V

CTR

CTR

=2.7V

=2.5V

Input Power (dBm)

(fin=2GHz)

0

-5 0 5 10 15 20 25 30
Input Power (dBm)

0

-5 0 5 10 15 20 25 30
Input Power (dBm)

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NJG1505R

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TYPICAL CHARACTERISTICS

V

=2.5V

CTR

V

=2.7V

CTR

V

=3.0V

CTR

V

=2.5V

CTR

V

=2.7V

CTR

V

=3.0V

CTR

V

=2.5V

CTR

V

=2.7V

CTR

V

=3.0V

CTR

V

=2.5V

CTR

V

=2.7V

CTR

V

=3.0V

CTR

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V

V

=2.5V

CTR

V

=2.7V

CTR

V

=3.0V

CTR

=2.5V

CTR

V

=2.7V

CTR

V

=3.0V

CTR

NJG1505R

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APPLICATION CIRCUIT: Single control signal operation by using C-MOS inverter.

PC

VC

510KΩ

[1]Please connect bypass capacitors to the supply terminals of the C-MOS inverter.
[2]In order to stabilize input impedance of inverter, please pull down using 510KΩ resister
from the input terminal of the C-MOS inverter to the ground plane.

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TEST CIRCUIT

+3.0V

2

Zo=50Ω

7S04

0.01uF

5

3

10pF

1

2

56pF

3

4

4

10pF

NJG1505R

8

7

6

5

56pF

56pF

Zo=50Ω

Zo=50Ω

P2

P1

VC=3V: PC-P1 ON
VC=0V: PC-P2 ON

V

CTL2

PC

V

CTL1

(2.7V/0V)

C4

Zo=50

(0V/2.7V)

Ω

Zo=50

1

Ω

2

C3

3

C5

4

NJG1505R

8

C1

7

6

Zo=50

5

C2

P2

Ω

P1

Test circuit 1 Test circuit 2

0.5~2GHz 1~500MHz
C1~C3 56pF 0.1uF
C4, C5 10pF 1000pF

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NJG1505R

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RECOMMENDED PCB DESIGN

P2

C1 C2

(TOP VIEW)

P1

Precautions

[1] External capacitors should be connected to the input and output RF terminals (P1,

[2] Decoupling capacitors should be connected to the control terminals (V

[3] In order to keep good isolation characteristics, the ground terminals (3, 6, 7 pin)

[4] The isolation of PC port to P1 port is greater than the isolation of PC port to P2

C4

C5

PCB SIZE=30.0x22.5mm

V

CTL2

C3

V

CTL1

PCB: FR-4, t=0.5mm
STRIPLINE WIDTH=1mm

PC

CAPACITORS: size 1005

P2, PC) to block the DC current. The values of these capacitors depend on RF
frequency range. Please use a 0.01uF capacitor at 50 to 100MHz, a 0.1uF
capacitor at 100 to 500MHz, and a 56pF capacitor at 500MHz to 2GHz.

, V

CTR1

CTR2

as close as possible. The values of these capacitors should be selected to 0.01uF
at 50 to 100MHz, 0.1uF at 100 to 500MHz, and 10pF at 500MHz to 2GHz. Please
take care to select these values because the capacitors make switching time
long.

should be connected to ground pattern with wider width as close as possible, and
through-hole in the ground plane should also be placed as close as possible.

port. Please consider this information to create better isolation design.

)

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NJG1505R

nPACKAGE OUTLINE (VSP8)

Lead material : Copper
Lead surface finish : Solder plating
Molding material : Epoxy resin
UNIT : mm
Weight : 22mg

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.

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