RF2948B Просмотр технического описания (PDF) - RF Micro Devices

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производитель

RF2948B

2.4GHz SPREAD-SPECTRUM TRANSCEIVER

RF Micro Devices 

RF2948B

Pin

31

32

Pkg

Base

Function

VREF 1

RX VGC

ESD

Description

This is a bypass pin for the bias circuits of the GmC filter amps and for

I/Q inputs. No current should be drawn from this pin (<10µA). 1.7V

nominal.

Receiver IF and baseband amp gain control voltage. Negative slope.

Ground for all circuitry in the device. A very low inductance from the

base to the PCB groundplane is essential for good performance. Use

an array of vias immediately underneath the device.

This diode structure is used to provide electrostatic discharge protec-

tion to 3kV using the Human body model. The following pins are pro-

tected: 1-4, 7, 8, 10, 19-32.

Interface Schematic

VCC

DESIGNS

NEW

NOT FOR

Rev A6 040930

11-245

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