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Preliminary
Product Description
Ordering Information
Typical Applications
Features
Functional Block Diagram
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Optimum Technology Matching® Applied
Si BJT
GaAs MESFET
GaAs HBT
Si Bi-CMOS
SiGe HBT
Si CMOS
Note orientation of Pin 1.
12
High Band
RF SAW
Filter
PCS LNA IN
4
MIXER GAIN CNTRL
31
LNA GAIN CNTRL
11
CELL LNA IN
Low Band
RF SAW
Filter
26
DIV ENABLE
45
IF SEL
44
BAND SEL
46
IP SET
29
ENABLE
30
TX BUFFER
ENABLE
LOGIC
CONTROL
880 MHz Mixer
Divide 2
1PCS LO OUT
27 LO IN
2CELL LO OUT
22 CDMA IF+
23 CDMA IF-
24
25
FM IF+
FM IF-
880 MHz LNA
1960 MHz LNA
1960 MHz Mixer
RF3404
DUAL-BAND/TRI-MODE CDMA
LOW NOISE AMPLIFIER/MIXER MODULE
• CDMA Cellular/PCS Handsets
The RF3404 is a fully-functional, integrated dual-band
downconverter module for tri-mode CDMA applications.
The module, which uses SiGe technology, features two
complete RF downconverters with low noise amplifiers,
RF SAW filters, TX LO buffers, and RF matching for PCS
and cellular band frequencies. Additionally, a divide-by-2
prescaler is integrated to allow the use of a single-band
VCO. Multiple gain control options are available to con-
serve current and meet IS-98B specifications. The mixer
design allows for a common IF filter for CDMA cellular
and PCS operation, and a second output for the FM out-
put. IF matching is external to the module.
• Complete Dual-Band Receiver Front End
• Integrated RF SAW Filters
• Internal RF Matching and Bias Settings
• Stepped LNA/Mixer Gain Control
• Adjustable LNA Bias Current and IIP3
• Meets IS-98B Specifications
RF3404
Dual-Band/Tri-Mode CDMA Low Noise Amplifier/
Mixer Module
RF3404 PCBA
Fully Assembled Evaluation Board
8
Rev A1 010918
FM
IF+
FM IF-
38
CELL LO
OUT
MIXER
GAIN
8
VCC2
PCS LO
OUT
1
34
9
TX BUFFER
ENABLE
30
LNA
GAIN
ENABLE
29
28
35
CELL LNA IN
11
PCS LNA IN
12
14
39
VCC4
43
CDMAIF-
23
BAND
SEL
44
LO IN
VCC3
48
DIV
ENABLE
IP
SET
IF
SEL
15
VCC1
21
CDMAIF+
22
Note orientation of Pin 1.
NOTE: Shaded area represents Pin 1.
0.1
1.0
0.6
8.00
sq.
0.5
Package Style: 8mmx8mm Module
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