RF3110 データシートの表示（PDF） - RF Micro Devices

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RF3110

TRIPLE-BAND GSM/DCS/PCS POWER AMP MODULE

RF Micro Devices 

Preliminary

RF3110

Pin Function Description

Interface Schematic

1

DCS IN RF input to the DCS band. This is a 50Ω input.

2

BAND

Allows external control to select the GSM or DCS band with a logic high

SELECT

or low. A logic low enables the GSM band whereas a logic high enables

the DCS band.

3 TX ENABLE This signal enables the PA module for operation with a logic high. Once

TX Enable is asserted the RF output level will increase to 0dBm.

4

VBATT

Power supply for the module. This should be connected to the battery.

2

5

VREG

Regulated voltage input for power control function. (2.8V nom)

6

VRAMP Ramping signal from DAC. A simple RC filter may need to be con-

nected between the DAC output and the VRAMP input depending on

the baseband selected. The ramping profiles shown later in the data

sheet are recommended profiles for meeting the GSM specification for

burst timing and transient spectrum.

7

GSM IN RF input to the GSM band. This is a 50Ω input.

8

VCC2

Controlled voltage input to driver stage for GSM bands. This voltage is

part of the power control function for the module. This node must be

connected to VCC out.

9

GSM OUT RF output for the GSM band. This is a 50Ω output. The output load line

matching is contained internal to the package.

10

VCC OUT Controlled voltage output to feed VCC2. This voltage is part of the

power control function for the module. It can not be connected to any-

thing other than VCC2, nor can any component be placed on this node

(i.e. decoupling capacitor).

11

DCS OUT RF output for the DCS band. This is a 50Ω output. The output load line

matching is contained internal to the package.

12

Pkg

VCC2

GND

Controlled voltage input to DCS driver stage. This voltage is part of the

power control function for the module. This node must be connected to

VCC out

Base

Rev A0 010921

2-265

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