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RF2705G_1 Datasheet

  • RF2705G_1

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

  • 26頁(yè)

  • RFMD

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RF2705GLow
Noise, Multi-
Mode, Quad-
Band, Quadra-
ture Modula-
tor and PA
Driver
RF2705G
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
23
22
21
20
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
GND
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
17
16
15
14
13
12
GC
VCC2 1
Note: The die flag is the
chip's main ground.
LO HB P 2
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
EDGE/GSM (GSM850/900)
Handsets
EDGE/GSM (DCS/PCS) Hand-
sets
W-CDMA Handsets/Data
Cards
W-CDMA/GSM/EDGE Multi-
mode Handsets and Data
Cards
Functional Block Diagram
Product Description
The RF2705 is a low noise, multi-mode, quad-band direct I/Q to RF modu-
lator and PA driver designed for handset applications where multiple
modes of operation are required. 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
RF2705G
Low Noise, Multi-Mode, Quad-Band, Quadrature Modulator
and PA Driver
RF2705GPCBA-41X 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 A0 DS060206
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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