9-9
9
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
ü
SiGe HBT
Si CMOS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
RF IN
VDD
VDD
VDD
VDD
VDD
VDD
VDD
G2
G4
G8
GND
GND
G10
G20
RF OUT
2dB
4dB
8dB
10 dB
20 dB
RF2420
PROGRAMMABLE ATTENUATOR
• Power Control in Communication Systems
• CMOS Compatible Programmable
Attenuators
• Commercial and Consumer Systems
• Portable Battery-Powered Equipment
The RF2420 is a multistage monolithic programmable
attenuator. The device is built using an advanced Gallium
Arsenide process technology and has an attenuation pro-
grammability over a 44dB range in 2dB steps. The atten-
uation is set by five bits of digital data. The input and
output of the device have a low VSWR 50
Ω match. This
unit is intended for use in systems that require RF trans-
mit power control by digital means. Typical applications
are in dual mode IS-54/55 compatible cellular transceiv-
ers and TETRA systems. No negative supply voltages
are required.
• Single 3V to 6V Supply
• 0dB to 44dB Attenuation Range
• 4dB Insertion Loss
• 5-bit Digitally Controlled Attenuation
• Digitally Controlled Power Down Mode
• DC to 950MHz Frequency Range
RF2420
Programmable Attenuator
RF2420 PCBA
Fully Assembled Evaluation Board
9
Rev A6 010720
NOTES:
1. Shaded lead is Pin 1.
2. All dimensions are excluding
mold flash.
3. Lead coplanarity - 0.005 with
respect to datum "A".
0.050
0.018
0.014
0.157
0.150
0.393
0.386
0.244
0.229
8° MAX
0° MIN
0.034
0.016
0.009
0.007
0.068
0.053
0.008
0.004
-A-
Package Style: SOIC-16
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