MA4SW610B-1 Datasheet, PDF (5/6 Pages) Tyco Electronics – SP6T PIN Diode Switch with Integrated Bias Network

MA4SW610B-1
SP6T PIN Diode Switch with Integrated Bias Network
2 - 18GHz
Rev. V2
Operation of the MA4SW610B-1 Switch
The simultaneous application of negative DC current to the low loss port and positive DC current to the
remaining isolated ports as shown in the schematic provides successful RF operation of the MA4SW Series of
PIN Diode Switches. The backside area of the die is the RF and DC return ground plane. The DC bias return is
located on common port J1. Constant current sources should supply the DC control currents.
In the low loss state, the series diode must be forward biased and the shunt diode reverse biased. For all
isolated ports, the shunt diode is forward biased while the series diode is reverse biased.
This design improves insertion loss, P1dB, IP3, and switching speed by Incorporating a voltage pull-up resistor
(~100 Ω ) in the DC return path ,J1, under insertion loss Bias. A Typical Value of |-3 V| is achieved at the
Insertion Loss Bias Node using ±20mA, with a Standard , ±5V TTL Controlled PIN Diode Driver.
MA4SW610B-1 Schematic
J1 ( Common Port )
DC Bias
J7
J2
J6
J5
J4
J3
5
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