RF2436PCBA Ver la hoja de datos (PDF) - RF Micro Devices

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RF2436PCBA

TRANSMIT/RECEIVE SWITCH

RF Micro Devices 

RF2436

Pin Function Description

Interface Schematic

1

RX OUT Output pin for Receive mode. VSWR is 1.1:1 when Receive mode is

selected and highly capacitive when Transmit mode is selected.

2

GND

Ground connection. For best performance, keep traces physically short

and connect immediately to the ground plane.

3

TX IN

Input pin for Transmit mode. The input VSWR is 1.1:1 when Transmit

mode is selected and highly capacitive when Receive mode is

selected.

4

TX/RX

Transmit Mode/Receive Mode control pin. A “low” level chooses

Receive mode; a “high” level chooses Transmit mode. CMOS logic may

be used to drive the control input.

5

ANT I/O Input/Output pin from/to antenna and power supply pin. This pin must

be biased with VDD through a resistor.

Evaluation Board Schematic

(Download Bill of Materials from www.rfmd.com.)

P1-1

+ C4

1 μF

P1-3

P1

1 VDD

2 GND

3 TX/RX

C1

J1

RX OUT

50 Ω μstrip

1 nF

1

C2

2

J2

TX IN

50 Ω μstrip

1 nF

3

C3

1 nF

50 Ω μstrip

5

R1

2 kΩ

4

J3

ANT I/O

VDD

TX/RX

2436400-

Rev A5 060509

9-13

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