Preliminary
RF2504
VCO/HIGH-ISOLATION BUFFER AMPLIFIER
12
Typical Applications
鈥?2-Way Paging
鈥?ISM Band Systems
鈥?Wireless Local Loop Systems
鈥?GPS Receivers
鈥?Cellular Systems
鈥?Low Voltage Applications
Product Description
The RF2504 is an integrated oscillator and buffer ampli-
fier chain designed to achieve extremely low sensitivity to
fluctuations in load impedance and power supply noise,
thereby greatly reducing load pulling and pushing. The IC
offers great flexibility, yet is easy to use. This product was
designed for use in applications with low supply voltages.
It has a power-down feature and is designed to operate
from 700MHz to 1500MHz with the help of an external
resonator. Frequency control is achieved with an external
varactor diode. The IC鈥檚 ease of use, reduced load pull-
ing, small size, and low cost make it an ideal LO (Local
Oscillator) for almost any wireless application.
0.008
0.004
0.018
0.014
-A-
0.196
0.189
0.050
0.157
0.150
0.244
0.229
Dimensions in mm
0.068
0.053
8擄 MAX
0擄 MIN
0.034
0.016
0.009
0.007
NOTES:
1. Shaded lead is Pin 1.
2. All dimensions are excluding
mold flash.
3. Lead coplanarity -
0.005 with respect to datum "A".
Optimum Technology Matching廬 Applied
眉
Si BJT
Package Style: SOIC-8
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
Si Bi-CMOS
Features
鈥?High-Isolation / Reduced Load Pulling
鈥?Low Current Consumption
鈥?-6dBm Output Power
鈥?Digitally Controlled Power Down Mode
鈥?700MHz to 1500MHz Operating Range
鈥?Single 2.2V to 5V Supply
12
PLLs and VCOs
VCC1 1
RES 2
GND1 3
NC 4
8 PD
7 GND2
6 RF OUT
5 VCC2
Ordering Information
RF2504
RF2504 PCBA
VCO/High-Isolation Buffer Amplifier
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 A2 010117
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