RF3140PCBA-41X RFMD [RF Micro Devices], RF3140PCBA-41X Datasheet - Page 7

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RF3140PCBA-41X

Manufacturer Part Number
RF3140PCBA-41X
Description
QUAD-BAND GSM850/GSM900/DCS/PCS POWER AMP MODULE
Manufacturer
RFMD [RF Micro Devices]
Datasheet
Rev A9 060217
Base
Pkg
Pin
10
11
12
1
2
3
4
5
6
7
8
9
DCS/PCS IN
TX ENABLE
GSM850/GS
GSM850/GS
M900 OUT
VCC OUT
DCS/PCS
Function
SELECT
M900 IN
VRAMP
VBATT
BAND
VREG
VCC2
VCC2
GND
OUT
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 con-
nected between the DAC output and the V
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 V
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 V
control function for the module. It cannot be connected to anything
other than V
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 con-
nected to V
CC
CC2
out.
CC
, nor can any component be placed on this node (i.e.,
out.
CC2
. This voltage is part of the power
RAMP
input depending on the
Interface Schematic
RF3140
2-497

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