RF3140PCBA-41X 데이터 시트보기 (PDF) - RF Micro Devices
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RF3140PCBA-41X Datasheet PDF : 16 Pages
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RF3140
Pin
1
2
3
4
5
6
7
8
9
10
11
12
Pkg
Base
Function
DCS/PCS IN
BAND SELECT
TX ENABLE
VBATT
VREG
VRAMP
GSM850/GS
M900 IN
VCC2
GSM850/GS
M900 OUT
VCC OUT
DCS/PCS
OUT
VCC2
GND
Description
RF input to the DCS/PCS band. This is a 50Ω input.
Allows external control to select the GSM or DCS/PCS bands with a logic
high or low. A logic low enables the GSM bands, whereas a logic high
enables the DCS/PCS bands.
This signal enables the PA module for operation with a logic high. Once TX
Enable is asserted the RF output level will increase to -20dBm.
Power supply for the module. This should be connected to the battery.
Regulated voltage input for power control function. (2.8V nom)
Ramping signal from DAC. A simple RC filter may need to be connected
between the DAC output and the VRAMP input depending on the baseband
selected.
RF input to the GSM bands. This is a 50Ω input.
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.
RF output for the GSM bands. This is a 50Ω output. The output load line
matching is contained internal to the package.
Controlled voltage output to feed VCC2. This voltage is part of the power
control function for the module. It cannot be connected to anything other
than VCC2, nor can any component be placed on this node (i.e., decoupling
capacitor).
RF output for the DCS/PCS bands. This is a 50Ω output. The output load
line matching is contained internal to the package.
Controlled voltage input to DCS/PCS driver stage. This voltage is part of the
power control function for the module. This node must be connected to VCC
out.
Interface Schematic
Rev A9 DS060217
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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