NJG1662MD7 - New Japan Radio Co., Ltd.

NJG1662MD7

- 1 -

Ver.2009-09-21

X-SPDT SWITCH GaAs MMIC

I GENERAL DESCRIPTION I PACKAGE OUTLINE

The NJG1662MD7 is a GaAs X (cross) - SPDT switch MMIC, which is

designed for switching of balanced dual band filters.

The NJG1662MD7 features very low phase error between on-state

paths, low insertion loss, low control voltage and wide frequency coverage.

The

ESD protection circuit are integrated in the IC to achieve high ESD

tolerance.

The ultra-small and ultra-thin EQFN14-D7 package is adopted.

*) X-SPDT is a paired SPDT switch controlled synchronously. The X-SPDT includes two

SPDT switches whose RF lines have a crossing inside the chip.

I FEATURES

G

GG

G Low phase error ±3 deg @f=2.0GHz

G

GG

G Low operation voltage V

DD

=+1.5~+4.5V

G

GG

G Low control voltage V

CTL(H)

=+1.3V min.

G Low insertion loss 0.3dB typ. @f=1.0GHz, P

IN

=0dBm

0.4dB typ. @f=2.0GHz, P

IN

=0dBm

G High isolation 28dB typ. @f=1.0GHz, P

IN

=0dBm

22dB typ. @f=2.0GHz, P

IN

=0dBm

G Small and thin package EQFN14-D7 (Package size: 1.6x1.6x0.397mm typ., Lead and Halogen-Free)

I PIN CONFIGURATION

I TRUTH TABLE

ON PATH VCTL

PC1-PA1,PC2-PA2 H

PC1-PB1,PC2-PB2 L

NJG1662MD7

NOTE: The Information on this datasheet will be subject to change without notice.

“H”=V

CTL(H),

“L”=V

CTL(L)

(Top View)

Pin connection

1. GND 10. PC1

2. PA2 11. GND

3. PB1 12. VCTL

4. GND 13. GND

5. PB2 14. PA1

6. GND

7. VDD

8. GND

9. PC2

1

2

3

9

8

7

5

10

4

6

11

12

13

14

NJG1662MD7

- 2 -

I 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, VCTL=0V/1.8V

PC1,PC2,PA1,PA2,PB1,PB2 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 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

I ELECTRICAL CHARACTERISTICS

(General conditions: T

a

=+25°C, Z

s

=Z

l

=50Ω, 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

1.5 2.7 4.5 V

Operating current I

DD

P

IN

=0dBm - 16 30 µA

Control voltage (LOW) V

CTL(L)

0 - 0.4 V

Control voltage (HIGH) V

CTL(H)

1.3 1.8 V

DD

V

Control current I

CTL

f=2.0GHz, P

IN

=0dBm - 5 10 µA

Insertion loss 1 LOSS1 f=1.0GHz, P

IN

=0dBm - 0.30 0.45 dB

Insertion loss 2 LOSS2 f=2.0GHz, P

IN

=0dBm - 0.40 0.55 dB

Insertion loss 3 LOSS3 f=2.5GHz, P

IN

=0dBm - 0.45 0.60 dB

Isolation 1 ISL1

PC1-PA1, PC2-PA2

PC1-PB1, PC2-PB2

f=1.0GHz, P

IN

=0dBm

26 28 - dB

Isolation 2 ISL2

PC1-PA1, PC2-PA2

PC1-PB1, PC2-PB2

f=2.0GHz, P

IN

=0dBm

20 22 - dB

Isolation 3 ISL3

PC1-PA1, PC2-PA2

PC1-PB1, PC2-PB2

f=2.5GHz, P

IN

=0dBm

18 20

-

dB

Isolation 4 ISL4 PC1-PC2 port

f=2.0GHz, P

IN

=0dBm 26 28

-

dB

Phase error PE

f=2.0GHz, between on paths

-3 0 3 deg

Input power at 0.2dB

compression point P

-0.2dB

f=2.0GHz

20 24 - dBm

VSWR VSWR

f=2.0GHz, On port

- 1.2 1.3

Switching time T

SW

50% CTL to 10%/90% RF - 1.5 5.0 µs

NJG1662MD7

- 3 -

I TERMINAL INFORMATION

No. SYMBOL

DESCRIPTION

1 GND Ground terminal. Please connect this terminal with ground plane as close as

possible for good RF performance.

2 PA2

This port is connected to PC2 terminal by applying High-level (1.3~4.5V) at

VCTL terminal. An external capacitor is required to block DC voltage of

internal circuit.

3 PB1

This port is connected to PC1 terminal by applying Low-level (0~0.4V) at

VCTL terminal. An external capacitor is required to block DC voltage of

internal circuit.

4 GND Ground terminal. Please connect this terminal with ground plane as close as

possible for good RF performance.

5 PB2

This port is connected to PC2 terminal by applying Low-level (0~0.4V) at

VCTL terminal. An external capacitor is required to block DC voltage of

internal circuit.

6 GND Ground terminal. Please connect this terminal with ground plane as close as

possible for good RF performance.

7 VDD A supply voltage terminal (1.5~4.5V). Please place a bypass capacitor

between this terminal and GND for avoiding RF noise from outside.

8 GND Ground terminal. Please connect this terminal with ground plane as close as

possible for good RF performance.

9 PC2 Common RF port. This port is connected with either of PA2 or PB2. An

external capacitor is required to block DC voltage of internal circuit.

10 PC1 Common RF port. This port is connected with either of PA1 or PB1. An

external capacitor is required to block DC voltage of internal circuit.

11 GND Ground terminal. Please connect this terminal with ground plane as close as

possible for good RF performance.

12 VCTL Control signal input terminal. This terminal is set to high-level (1.3V~4.5V) or

low-level (0~0.4V).

13 GND Ground terminal. Please connect this terminal with ground plane as close as

possible for good RF performance.

14 PA1

This port is connected to PC1 terminal by applying High-level (1.3~4.5V) at

VCTL terminal. An external capacitor is required to block DC voltage of

internal circuit.

NJG1662MD7

- 4 -

-1.0

-0.8

-0.6

-0.4

-0.2

0.0

0.5 1.0 1.5 2.0 2.5 3.0

PC1-PA1

PC2-PA2

Insertion Loss (dB)

Frequency (GHz)

Insertion Loss vs. Frequency

( VDD=2.7V, VCTL=1.8V )

1.0

1.2

1.4

1.6

1.8

2.0

0.5 1.0 1.5 2.0 2.5 3.0

PC1 Port

PC2 Port

VSWR

Frequency (GHz)

VSWR vs. Frequency

( VDD=2.7V, VCTL1=1.8V )

I ELECTRICAL CHARACTERISTICS (With Application circuit, Loss of external circuit are excluded)

-1.0

-0.8

-0.6

-0.4

-0.2

0.0

0.5 1.0 1.5 2.0 2.5 3.0

PC1-PB1

PC2-PB2

Insertion Loss (dB)

Frequency (GHz)

Insertion Loss vs. Frequency

( VDD=2.7V, VCTL=0V )

-50

-40

-30

-20

-10

0

0.5 1.0 1.5 2.0 2.5 3.0

PC1-PB1

PC2-PB2

PC1-PC2

Isolation (dB)

Frequency (GHz)

Isolation vs. Frequency

( VDD=2.7V, VCTL=1.8V )

-4

-3

-2

-1

0

1

2

3

4

0.5 1.0 1.5 2.0 2.5 3.0

Phase Error (degree)

Frequency (GHz)

PC1-PA1, PC2-PA2

Phase Error vs. Frequency

( V

DD

=2.7V, V

CTL

=1.8V )

-4

-3

-2

-1

0

1

2

3

4

0.5 1.0 1.5 2.0 2.5 3.0

Phase Error (degree)

Frequency (GHz)

PC1-PA1, PC2-PA2

Phase Error vs. Frequency

( V

DD

=2.7V, V

CTL

=1.8V )

NJG1662MD7

- 5 -

I ELECTRICAL CHARACTERISTICS (With Application circuit, Loss of external circuit are excluded)

-2.0

-1.5

-1.0

-0.5

0.0

10 15 20 25 30

V

DD

=1.5V

V

DD

=2V

V

DD

=2.7V

V

DD

=3.5V

V

DD

=4.5V

Insertion Loss (dB)

Input Power (dBm)

Insertion Loss vs. Input Power

( f=2GHz, PC1-PA1 ON, VCTL=1.8V )

Voltage (arb. unit)

Time (0.5µ

µµ

µs/div)

Switching Time

( VDD=2.7V )

VCTL Port

PA1 Port

1.7

µ

µµ

µ

s

NJG1662MD7

- 6 -

-30

-25

-20

-15

-10

-5

0

-50 0 50 100

PC1-PB1

PC2-PB2

PC1-PC2

Isolation (dB)

Ambient Temperature ( oC )

Isolation vs. Ambient Temperature

( f=2GHz, V

DD

=2.7V, V

CTL

=1.8V )

I ELECTRICAL CHARACTERISTICS (With Application circuit, Loss of external circuit are excluded)

-1.0

-0.8

-0.6

-0.4

-0.2

0.0

-50 0 50 100

f=1GHz

f=2GHz

f=2.5GHz

Insertion Loss (dB)

Ambient Temperature ( oC )

Insertion Loss vs. Ambient Temperature

( PC1-PA1 ON, V

DD

=2.7V, V

CTL

=1.8V )

1

1.2

1.4

1.6

1.8

2

-50 0 50 100

VSWR

Ambient Temperature ( oC )

VSWR vs. Ambient Temperature

( PC1-PA1 ON, V

DD

=2.7V, V

CTL

=1.8V )

-2

-1.5

-1

-0.5

0

0.5 1.0 1.5 2.0 2.5 3.0

-45

o

C

+25

o

C

+90

o

C

Insertion Loss (dB)

Frequency (GHz)

Insertion Loss vs. Frequency

( PC1-PA1 ON, f=2GHz, V

DD

=2.7V, V

CTL

=1.8V )

-6

-4

-2

0

2

4

6

0.5 1.0 1.5 2.0 2.5 3.0

-45

o

C

+25

o

C

+90

o

C

Phase Error (degree)

Frequency (GHz)

PC1-PA1, PC2-PA2 Phase Error vs. Frequency

( V

DD

=2.7V, V

CTL

=1.8V )

-6

-4

-2

0

2

4

6

-50 0 50 100

PC1-PA1,PC2-PA2

PC1-PB1,PC2-PB2

Phase Error (degree)

Ambient Temperature (

o

C )

Phase Error vs. Ambient Temperature

( f=2GHz, V

DD

=2.7V, V

CTL(H)

=1.8V, V

CTL(L)

=0V )

NJG1662MD7

- 7 -

VCTL VDD

PA1

PA2 PB1

PB2

PC1 PC2

0/1.8V 2.7V

C1 C2

C3

C4C5

C6

C7

1

2

3

9

8

7

5

10

4

6

11

12

13

14

I APPLICATION CIRCUIT

I PARTS LIST

Part ID Value Notes

C1~C6 56pF

C7 1000pF MURATA (GRM15)

I

II

I TEST PCB LAYOUT

(TOP VIEW)

Losses of PCB, capacitors and connectors

Frequency (GHz)

Loss (dB)

1.0 0.38

2.0 0.51

2.5 0.55

PCB: FR-4, t=0.2mm

Capacitor Size: 1005

Strip Line Width: 0.4mm

PCB Size: 26 x 26mm

VCTL

C4

C6

C1

C2

PC1

VDD

PC2

PA1

PA2

PB1

PB2

C5

C3

C7

NJG1662MD7

- 8 -

■

■■

■ PACKAGE OUTLINE (EQFN14-D7)

Units : mm

Board : Cu

Terminal treat : SnBi

Molding material : Epoxy resin

Weight : 3.3mg

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 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 av

oid 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.