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RF3854PCBA-41X Datasheet

  • RF3854PCBA-41X

  • LOW NOISE, MULTI-MODE, QUAD-BAND, QUADRATURE MODULATOR AND P...

  • 26頁

  • RFMD

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RF3854
LOW NOISE, MULTI-MODE, QUAD-BAND,
QUADRATURE MODULATOR AND PA DRIVER
RoHS Compliant & Pb-Free Product
Package Style: QFN, 24-Pin, 4x4
MODE B
MODE A
I SIG N
I SIG P
VCC1
24
VCC2 1
23
22
21
20
19
18
RF OUT
WB P
RF OUT
WB N
RF OUT
HB P
RF OUT
HB N
RF OUT
LB P
RF OUT
LB N
Features
W-CDMA High/Mid/Low
Power Modes
Quad-Band Direct Quadrature
Modulator
Variable Gain PA Drivers
GMSK Bypass Amplifiers
LO Frequency Doubler and
Divider
Baseband Filtering
Qualified to Infrastructure
Standards
LO HB P 2
Note: The die flag is the
chip's main ground.
GND
17
16
15
14
13
12
GC
LO HB N 3
DIV
2
+45擄
-45擄
危
LO LB P 4
Flo
x2
+45擄
-45擄
LO LB N 5
Mode Control
and Biasing
Power
Control
MODE C 6
7
MODE D
8
Q SIG N
9
Q SIG P
10
VREF
11
GC DEC
Applications
CDMA, GSM, and UMTS Bas-
estation Architecture
ISM Transceivers
Broadband Fixed Wireless
Access and Wireless Local
Loop
GMSK, QPSK, DQPSK, QAM
Modulation
Functional Block Diagram
Product Description
The RF3854 is a low noise, multi-mode, quad-band direct I/Q to RF modu-
lator and PA driver solution designed for digital modulation applications
ranging from 800MHz to 2000MHz. Frequency doublers, dividers and LO
buffers are included to support a variety of LO generation options.
Dynamic power control is supported through a single analog input giving
90dB of power control range for the W-CDMA mode and 40dB of power
control in the other two modes. Three sets of RF outputs are provided:
high band and low band low noise EDGE/GMSK outputs, as well as one
wideband W-CDMA output. The device is designed for 2.7V to 3.3V opera-
tion, and is assembled in a plastic, 24-pin, 4mmx4mm QFN.
Ordering Information
RF3854
RF3854PCBA-41X
Low Noise, Multi-Mode, Quad-Band, Quadrature Modulator
and PA Driver
Fully Assembled Evaluation Board
Optimum Technology Matching廬 Applied
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
RF MICRO DEVICES廬, RFMD廬, Optimum Technology Matching廬, Enabling Wireless Connectivity鈩? PowerStar廬, POLARIS鈩?TOTAL RADIO鈩?and UltimateBlue鈩?are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. 漏2006, RF Micro Devices, Inc.
Rev A1 DS070313
7628 Thorndike Road, Greensboro, NC 27409-9421 路 For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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