RF2942
0
Typical Applications
• 915MHz ISM Band Products
• Digital Communications
• Quadrature Modulation
• Portable Battery-Powered Equipment
UHF QUADRATURE MODULATOR
AND TRANSMITTER
Product Description
-A-
2 PLCS
0.25 C A
The RF2942 is an integrated power amplifier and quadra-
ture modulator IC. The quadrature modulator is driven
with a single-ended local oscillator (LO) source. The
quadrature phase generation of the LO is accomplished
using an internal passive network tuned for twice the
operating frequency. The LO frequency is at twice the RF
frequency to avoid interfering with an external synthe-
sizer.
4.00 SQ.
2.00 TYP
0.25 C B
2 PLCS
1.00
0.85
0.80
0.65
0.05 C
0.05
0.01
Dimensions in mm.
12°
MAX
0.20 C B
2 PLCS
-B-
1.88 TYP
3.75 SQ.
-C-
SEATING
PLANE
2 PLCS
0.20 C A
0.10 M C A B
Shaded lead is pin 1.
0.60
0.24
TYP
0.35
0.23
0.65
0.30
4 PLCS
1.85
SQ.
1.55
0.23
0.13
4 PLCS
0.65
0.75
0.50
Optimum Technology Matching® Applied
Si BJT
Si Bi-CMOS
InGaP/HBT
GaAs HBT
SiGe HBT
GaN HEMT
GaAs MESFET
Si CMOS
SiGe Bi-CMOS
Package Style: QFN, 16-Pin, 4x4
Features
• 2.0V to 3.6V Power Supply
• 902MHz to 928MHz Frequency Range
I DATA+
I DATA-
TX EN
• 200mW Output Power
• Low LO Input Level
• Low Broadband Noise Floor
• Small Footprint
4
3
12
LO IN+ 14
LO2 OUT 15
÷2
+45°
-45°
Σ
9 RF OUT
2
Q DATA+
1
Q DATA-
Ordering Information
RF2942
RF2942 PCBA
UHF Quadrature Modulator and Transmitter
Fully Assembled Evaluation Board
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
Rev A4 040115
11-195
RFMD [ RF MICRO DEVICES ]
