5-51
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
InGaP/HBT
GaN HEMT
SiGe Bi-CMOS
RFOUT
GND
VCC
GND
LO
LOREF
RFREF
GND
5
13
12
11
10
14
7
8
6
9
15
16
1
2
3
4
-45°
+45°
Σ
RF2850
DIRECT QUADRATURE MODULATOR
• UMTS Base Stations
• CDMA Base Stations
• GSM-EDGE/EGSM Base Stations
• WLAN and WLL Systems
• GMSK,QPSK,DQPSK,QAM Modulation
The RF2850 is a direct quadrature modulator for use in
base
stations
and
other
communications systems.
RF2850 supports PCS, GSM, EDGE, CDMA2000, and
UMTS standards. This device features a narrow-band
operation at 1700MHz to 2500MHz with excellent carrier
and sideband suppression and ultra low noise floor. The
device is manufactured on an advanced GaAs HBT pro-
cess. The RF2850 operates from a single 5V supply and
is packaged in a low cost 4mmx4mm 16-pin leadless
package.
• Typical Carrier Suppression>40dBc
• Typical Sideband Suppression>40dBc
• Noise Floor better than -158dBm/Hz
• Single 5V Power Supply
RF2850
Direct Quadrature Modulator
RF2850 PCBA
Fully Assembled Evaluation Board
0
Rev A0 050616
0.10
CA B
M
0.35
0.23
Pin 1 ID
0.20 R
2.25
1.95
SQ.
0.65
0.75
0.50
TYP
0.60
0.24
TYP
0.05 C
0.90
0.85
0.70
0.65
0.05
0.00
12°
MAX
-C-
SEATING
PLANE
Shaded lead is pin 1.
Dimensions in mm.
0.10 C A
2 PLCS
-A-
4.00 SQ.
0.10 C B
2 PLCS
0.10 C B
2 PLCS
-B-
3.75 SQ
1.87 TYP
0.10 C A
2 PLCS
2.00 TYP
Package Style: QFN, 16-Pin, 4x4
RoHS Compliant & Pb-Free Product
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