RF2850
0
RoHS Compliant & Pb-Free Product
Typical Applications
• UMTS Base Stations
• CDMA Base Stations
• GSM-EDGE/EGSM Base Stations
Product Description
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.
-A-
2 PLCS
0.10 C A
0.05 C
DIRECT QUADRATURE MODULATOR
• WLAN and WLL Systems
• GMSK,QPSK,DQPSK,QAM Modulation
4.00 SQ.
2.00
TYP
0.10 C B
2 PLCS
0.70
0.65
0.90
0.85
0.05
0.00
12°
MAX
0.10 C B
2 PLCS
-B-
-C-
1.87
TYP
3.75 SQ
0.10 C A
2 PLCS
SEATING
PLANE
Shaded lead is pin 1.
Dimensions in mm.
0.10 M C A B
0.60
0.24
TYP
0.35
0.23
Pin 1 ID
0.20 R
2.25
SQ.
1.95
0.75
TYP
0.50
0.65
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
• Typical Carrier Suppression>40dBc
• Typical Sideband Suppression>40dBc
• Noise Floor better than -158dBm/Hz
• Single 5V Power Supply
QREF
QSIG
14
16
GND 1
LO 2
15
13
12 RFOUT
11 GND
-45°
+45°
Σ
LOREF 3
GND 4
5
VCC
6
IREF
7
ISIG
8
GND
GND
10 VCC
9 RFREF
VCC
Ordering Information
RF2850
RF2850 PCBA
Direct Quadrature Modulator
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 A0 050616
5-51
RFMD [ RF MICRO DEVICES ]
