F2912

High Reliability SP2T RF Switch

22

F2912, Rev 3, 04/01/2016

The F2912 EVkit has a number of control features available. Please refer to the EVkit Application Circuit and

EVkit Picture for connections to this part. All bias and logic controls are done using J7 as an interface.

See Table 5 for the function of each pin on J7.

Table 5: EVkit J7 Interface Table

J7 PIN PIN NAME

CONNECTIONS

1

Pin to supply VCC from an external power supply.

2

GND

Pin to supply GND from an external power supply.

3

ModeCTL

Leave this pin open to select 1-pin control. A pull up resistor on the EVkit

provides a logic high. If 2-pin control is desired, ground this pin by using a

two pin shunt between this pin and pin 4 (GND). See Tables 1, 2, and 3 for

1-pin and 2-pin control logic.

4

GND

Pin available to shunt to pin 3 to provide a logic low.

5

LogicCTL

If using 1.8 V logic for CTL1 and CTL2, leave this pin open. A pullup resistor

on the kit provides a logic high. If 3.3 V logic is used then ground this pin

by using a two pin shunt between this pin and pin 6 (GND).

6

GND

Pin available to shunt to pin 5 to provide a logic low.

7

CTL1

Used to control the switch state when using the 2-pin control method.

Leave this pin open to allow the EVkit pullup resistor to provide a logic high.

Connect to pin 8 (GND) with a two pin shunt if a logic low is desired. Actual

logic levels applied to this pin depend on the setting of LogicCTL pin. This

device can be damage if the incorrect logic level is applied to this pin.

8

GND

Pin available to shunt to pin 7 to provide a logic low.

9

CTL2

Used to control the switch state when using the 1-pin or 2-pin control

method. Leave this pin open to allow the EVkit pullup resistor to provide a

logic high. Connect to pin 10 (GND) with a two pin shunt if a logic low is

desired. Actual logic levels applied to this pin depend on the setting of

LogicCTL pin. This device can be damage if the incorrect logic level is

applied to this pin.

10

GND

Pin available to shunt to pin 9 to provide a logic low.

11

1.8VSEL

If using 3.3 V CTL1 and CTL2 logic, connect this pin to pin 12 (VCC) using a

two pin shunt. If using 1.8 V logic then leave this pin open.*

12

Internally connected on PCB to VCC on pin 1.

13

1.8VSEL

If using 1.8 V CTL1 and CTL2 logic, connect this pin to pin 14 (1.8VSEL2)

using a two pin shunt. If using 3.3 V logic then leave this pin open.*

14

1.8VSEL2

If using 1.8 V CTL1 and CTL2 logic, connect this pin to pin 13 (1.8VSEL)

using a two pin shunt. If using 3.3 V logic then leave this pin open.*

* Never configure the kit to have two pin shunts for both Pin 11 to Pin 12 and Pin 13 to Pin 14.