HMIC™ Silicon PIN Diode Switches

Rev. V11

MA4SWx10 Series

6

6

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6

DC Control Current (mA)

RF Output State

J2

J1-J2

-20

low loss

+20

Isolation

Compatible MACOM Driver MADR-007097-000100

Driver Connections and Drivers

6. RLC values are for an operation frequency of 2-18 GHz and

bias current of ± 20 mA per port..

MA4SW110 (SPST)

MA4SW210 (SPDT)

MA4SW310 (SP3T)

DC Control Current (mA)

RF Output States

J2

J3

J1-J2

J1-J3

-20

+20

low loss

Isolation

+20

-20

Isolation

low loss

Compatible MACOM Driver MADR-007097-000100

DC Control Current (mA)

RF Output States

J2

J3

J4

J1-J2

J1-J3

J1-J4

-20

+20

+20

low loss Isolation Isolation

+20

-20

+20

Isolation low loss Isolation

+20

+20

-20

Isolation Isolation low loss

Compatible MACOM Driver MADR-009190-000100

Operation of MA4SW Series Switches

The simultaneous application of a negative DC

current to the low loss port and positive DC current

to the isolated port is required for proper operation of

the MA4SW series of PIN switches. The backside

area of the die is the RF and DC ground return and

the DC return is through the common Port J1. A

constant current source should be used to supply

the DC control currents. The control voltages at

these points will not exceed ±1.5 volts for supply

currents up to +50mA. In the low loss state, the se-

ries diode must be forward biased and the shunt

diode reverse biased. On all isolated ports, the shunt

diode is forward biased and the series diode is

reverse biased.

20 pF

20 pF

20 nH

100 Ω

20 nH

20 pF

J2

Switch

Chip

J2 Bias

MA4SW110 (SPST)

20 pF

20 pF

20 nH

100 Ω

20 nH

20 pF

J2

Switch

Chip

20 nH

20 pF

20 pF

J3

J3 Bias

J2 Bias

MA4SW210 (SPDT)

20 pF

20 pF

20 nH

100 Ω

20 nH

20 pF

J2

Switch

Chip

20 nH

20 pF

20 pF

J4

J4 Bias

J2 Bias

20 pF

20 pF

J3

20 nH

Bias

MA4SW310 (SP3T)